JezK

Edit File: functions.php

<?php
add_shortcode('ahc_stats_widget',  'ahc_stats_widget_func');
//[ahc_stats_widget title="" fontsize="16" fonttype="" display_today_visitors=true display_today_pageviwes=true display_total_visitors=true display_total_pageviwes=true ]
// Hook to run when the plugin is activated

function ahcfree_admin_notice_to_set_timezone()
{
    // Get the custom timezone value
    $ahcfree_custom_timezone = get_option('ahcfree_custom_timezone', false);

// Check if the timezone is invalid or empty
    if (!$ahcfree_custom_timezone || !in_array($ahcfree_custom_timezone, DateTimeZone::listIdentifiers(DateTimeZone::ALL))) {
        $class = 'notice notice-error';
        $name = 'Visitor Traffic Real Time Statistics Free - Invalid Timezone';
        $message = sprintf(
            __('Invalid timezone, Please visit the <a href="%s">settings</a> page and select your current timezone.'),
            esc_url(admin_url('admin.php?page=ahc_hits_counter_settings'))
        );

printf(
            '<br><div class="%1$s" style="padding-top:5px;"><b>%2$s</b><p>%3$s</p></div>',
            esc_attr($class),
            esc_html($name),
            $message
        );
    }
}
add_action('admin_notices', 'ahcfree_admin_notice_to_set_timezone');

function ahc_stats_widget_func($instance = [])
{

$args = shortcode_atts(array(

'fontsize' => '14',
        'title' => '',
        'fonttype' => '',
        'display_today_visitors' => "true",
        'display_today_pageviwes' => "true",
        'display_total_visitors' => "true",
        'display_total_pageviwes' => "true"

), $instance);

$ret  = '';

$ahc_sum_stats = ahcfree_get_summary_statistics();
    $ret .= isset($args['title']) ? '<h3 class="ahc_stats_widget_title">' . esc_html($args['title']) . '</h3>' : '';

// This is where you run the code and display the output
    $ret .= '<ul class="ahc_stats_widget" style="list-style:none; font-family: ' . esc_attr($args['fonttype']) . ' !important; font-size:' . esc_attr($args['fontsize']) . 'px !important">';

if ($args['display_today_visitors'] != 'false' && $args['display_today_visitors']  != false) {
        $ret .= '<li><b>' . __("Today's visitors:", 'visitors-traffic-real-time-statistics') . '</b><span>' . ahcfree_NumFormat(intval($ahc_sum_stats['today']['visitors'])) . '</span></li>';
    }
    if ($args['display_today_pageviwes']  != 'false' && $args['display_today_pageviwes']  != false) {
        $ret .= '<li><b>' . __("Today's page views", 'visitors-traffic-real-time-statistics') . ' </b><span>' . ahcfree_NumFormat(intval($ahc_sum_stats['today']['visits'])) . '</span></li>';
    }

if ($args['display_total_visitors'] != 'false' && $args['display_total_visitors'] != false) {
        $ret .= '<li><b>' . __("Total visitors", 'visitors-traffic-real-time-statistics') . ' </b><span>' . ahcfree_NumFormat(intval($ahc_sum_stats['total']['visitors'])) . '</span></li>';
    }

if ($args['display_total_pageviwes'] != 'false' && $args['display_total_visitors'] != false) {
        $ret .= '<li><b>' . __("Total page views", 'visitors-traffic-real-time-statistics') . ' </b><span>' . ahcfree_NumFormat(intval($ahc_sum_stats['total']['visits'])) . '</span></li>';
    }

$ret .= '</ul>';

return  $ret;
}

add_shortcode('ahc_today_visitors',  'ahc_today_visitors_func');

function ahc_today_visitors_func()
{

$ahc_sum_stats = ahcfree_get_visitors_visits_in_period('today');
    return ahcfree_NumFormat(intval($ahc_sum_stats['visitors']));
}

add_shortcode('ahc_today_visits',  'ahc_today_visits_func');

function ahc_today_visits_func()
{

$ahc_sum_stats = ahcfree_get_visitors_visits_in_period('today');
    return ahcfree_NumFormat(intval($ahc_sum_stats['visits']));
}

add_shortcode('ahc_total_visitors',  'ahc_total_visitors_func');

function ahc_total_visitors_func()
{

$ahc_sum_stats = ahcfree_get_visitors_visits_in_period('total');
    return ahcfree_NumFormat(intval($ahc_sum_stats['visitors']));
}

add_shortcode('ahc_total_visits',  'ahc_total_visits_func');

function ahc_total_visits_func()
{

$ahc_sum_stats = ahcfree_get_visitors_visits_in_period('total');
    return ahcfree_NumFormat(intval($ahc_sum_stats['visits']));
}

add_shortcode('ahc_yesterday_total_visits',  'ahc_yesterday_total_visits_func');

function ahc_yesterday_total_visits_func()
{

$ahc_sum_stats = ahcfree_get_visitors_visits_in_period('yesterday');
    return ahcfree_NumFormat(intval($ahc_sum_stats['visits']));
}
add_shortcode('ahc_yesterday_total_visitors',  'ahc_yesterday_total_visitors_func');

function ahc_yesterday_total_visitors_func()
{

$ahc_sum_stats = ahcfree_get_visitors_visits_in_period('yesterday');
    return ahcfree_NumFormat(intval($ahc_sum_stats['visitors']));
}

/**
 * Recursive sanitation for text or array
 * 
 * @param $array_or_string (array|string)
 * @since  0.1
 * @return mixed
 */
function ahc_free_sanitize_text_or_array_field($array_or_string)
{
    if (is_string($array_or_string)) {
        $array_or_string = sanitize_text_field($array_or_string);
    } elseif (is_array($array_or_string)) {
        foreach ($array_or_string as $key => &$value) {
            if (is_array($value)) {
                $value = ahc_free_sanitize_text_or_array_field($value);
            } else {
                $value = sanitize_text_field($value);
            }
        }
    }

return $array_or_string;
}

function vtrts_free_top_bar_enqueue_style()
{
    wp_enqueue_style('admin-bar');
    $custom_css = '
    .canvasjs-chart-credit{
        display: none !important;
    }
    #vtrtsFreeChart canvas {
    border-radius: 6px;
}

.vtrts-free-adminbar-weekly-title {
    font-weight: bold;
    font-size: 14px;
    color: #fff;
    margin-bottom: 6px;
}

#wpadminbar #wp-admin-bar-vtrts_free_top_button .ab-icon:before {
            content: "\f185";
            color: #1DAE22;
            top: 3px;
        }
    #wp-admin-bar-vtrts_pro_top_button .ab-item {
        min-width: 180px;
    }
    .vtrts-free-adminbar-dropdown {
        min-width: 420px ;
        padding: 18px 18px 12px 18px;
        background: #23282d;
        color: #fff;
        border-radius: 8px;
        box-shadow: 0 4px 24px rgba(0,0,0,0.15);
        margin-top: 10px;
    }
    .vtrts-free-adminbar-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 18px 18px; /* row-gap column-gap */
        margin-bottom: 18px;
    }
    .vtrts-free-adminbar-card {
        background: #2c3338;
        border-radius: 8px;
        padding: 18px 18px 12px 18px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.07);
        display: flex;
        flex-direction: column;
        align-items: flex-start;
    }
    /* Extra margin for the right column */
    .vtrts-free-adminbar-card:nth-child(2),
    .vtrts-free-adminbar-card:nth-child(4) {
        margin-left: 10px !important;
        padding-left: 10px !important;
                padding-top: 6px !important;

margin-right: 10px !important;
        padding-right : 10px !important;
        margin-top: 10px !important;
    }
    .vtrts-free-adminbar-card:nth-child(1),
    .vtrts-free-adminbar-card:nth-child(3) {
        margin-left: 10px !important;
        padding-left: 10px !important;
                padding-top: 6px !important;

margin-top: 10px !important;
                padding-right : 10px !important;

}
    /* Extra margin for the bottom row */
    .vtrts-free-adminbar-card:nth-child(3),
    .vtrts-free-adminbar-card:nth-child(4) {
        margin-top: 6px !important;
        padding-top: 6px !important;
        margin-top: 10px !important;
    }
    .vtrts-free-adminbar-card-title {
        font-size: 14px;
        font-weight: 800;
        margin-bottom: 6px;
        color: #fff;
    }
    .vtrts-free-adminbar-card-value {
        font-size: 22px;
        font-weight: bold;
        color: #1DAE22;
        margin-bottom: 4px;
    }
    .vtrts-free-adminbar-card-sub {
        font-size: 12px;
        color: #aaa;
    }
    .vtrts-free-adminbar-btn-wrap {
        text-align: center;
        margin-top: 8px;
    }

#wp-admin-bar-vtrts_free_top_button .ab-item{
    min-width: 80px !important;
        padding: 0px !important;
    .vtrts-free-adminbar-btn {
        display: inline-block;
        background: #1DAE22;
        color: #fff !important;
        font-weight: bold;
        padding: 8px 28px;
        border-radius: 6px;
        text-decoration: none;
        font-size: 15px;
        transition: background 0.2s;
        margin-top: 8px;
    }
    .vtrts-free-adminbar-btn:hover {
        background: #15991b;
        color: #fff !important;
    }

.vtrts-free-adminbar-dropdown-wrap { min-width: 0; padding: 0; }
    #wpadminbar #wp-admin-bar-vtrts_free_top_button .vtrts-free-adminbar-dropdown { display: none; position: absolute; left: 0; top: 100%; z-index: 99999; }
    #wpadminbar #wp-admin-bar-vtrts_free_top_button:hover .vtrts-free-adminbar-dropdown { display: block; }
    
        .ab-empty-item #wp-admin-bar-vtrts_free_top_button-default .ab-empty-item{
    height:0px !important;
    padding :0px !important;
     }
            #wpadminbar .quicklinks .ab-empty-item{
        padding:0px !important;
    }
    .vtrts-free-adminbar-dropdown {
    min-width: 420px;
    padding: 18px 18px 12px 18px;
    background: #23282d;
    color: #fff;
    border-radius: 12px; /* more rounded */
    box-shadow: 0 8px 32px rgba(0,0,0,0.25); /* deeper shadow */
    margin-top: 10px;
}

.vtrts-free-adminbar-btn-wrap {
    text-align: center;
    margin-top: 18px; /* more space above */
}

.vtrts-free-adminbar-btn {
    display: inline-block;
    background: #1DAE22;
    color: #fff !important;
    font-weight: bold;
    padding: 5px 22px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 17px;
    transition: background 0.2s, box-shadow 0.2s;
    margin-top: 8px;
    box-shadow: 0 2px 8px rgba(29,174,34,0.15);
    text-align: center;
    line-height: 1.6;
    
}
.vtrts-free-adminbar-btn:hover {
    background: #15991b;
    color: #fff !important;
    box-shadow: 0 4px 16px rgba(29,174,34,0.25);
}

';
    wp_add_inline_style('admin-bar', $custom_css);
}
function ahcfree_get_visits_and_visitors_by_day_range($start_date, $end_date)
{
    global $wpdb;

// Initialize day map
    $day_map = [];
    $current = new DateTime($start_date);
    $end = new DateTime($end_date);
    $end->modify('+1 day');

while ($current < $end) {
        $day_key = $current->format('Y-m-d');
        $day_map[$day_key] = [
            'day' => $day_key,
            'visitors' => 0,
            'visits' => 0
        ];
        $current->modify('+1 day');
    }

// Query actual data from ahc_visitors
    $results = $wpdb->get_results(
        $wpdb->prepare("
            SELECT DATE(`vst_date`) as day, 
                   SUM(`vst_visitors`) as visitors, 
                   SUM(`vst_visits`) as visits
            FROM `ahc_visitors`
            WHERE DATE(`vst_date`) BETWEEN %s AND %s
              AND `site_id` = %d
            GROUP BY day
            ORDER BY day ASC
        ", $start_date, $end_date, get_current_blog_id()),
        ARRAY_A
    );

// Fill day map with real data
    foreach ($results as $row) {
        if (isset($day_map[$row['day']])) {
            $day_map[$row['day']]['visitors'] = (int)$row['visitors'];
            $day_map[$row['day']]['visits'] = (int)$row['visits'];
        }
    }

// Prepare chart arrays
    $dates = [];
    $visitors = [];
    $visits = [];

foreach ($day_map as $day_data) {
        $dates[] = date('d/m', strtotime($day_data['day']));
        $visitors[] = $day_data['visitors'];
        $visits[] = $day_data['visits'];
    }

return [
        'dates' => $dates,
        'visitors' => $visitors,
        'visits' => $visits
    ];
}

// Enqueue CanvasJS for Free version
function enqueue_canvasjs_free()
{
    wp_enqueue_script('canvasjs-free', 'https://cdn.canvasjs.com/canvasjs.min.js', array(), null, true);
}

// Main function to add admin bar items for Free version
function vtrts_free_add_items($admin_bar)
{
    if (!current_user_can('manage_options')) {
        return;
    }

$ahc_sum_stat = ahcfree_get_summary_statistics();

// Build chart data
    $chart_data = ahcfree_get_visits_and_visitors_by_day_range(
        date('Y-m-d', strtotime('-6 days')),
        date('Y-m-d')
    );

// Store data for use in footer
    $GLOBALS['vtrts_free_chart_data'] = [
        'labels' => $chart_data['dates'],
        'data' => $chart_data['visitors']
    ];

// Chart HTML
    $chart_html = '<div class="vtrts-free-adminbar-weekly">'
        . '<div class="vtrts-free-adminbar-weekly-title">' . __('Visitors - Last 7 Days', 'visitors-traffic-real-time-statistics') . '</div>'
        . '<div id="vtrtsFreeChart" style="height: 200px; width: 420px; background-color: #23282d; border-radius: 6px;"></div>'
        . '</div>';

// Build dropdown HTML
    $dropdown_html = '<div class="vtrts-free-adminbar-dropdown">'
        . '<div class="vtrts-free-adminbar-grid">'
        . '<div class="vtrts-free-adminbar-card">'
        . '<div class="vtrts-free-adminbar-card-title">' . __('Visitors Today', 'visitors-traffic-real-time-statistics') . '</div>'
        . '<div class="vtrts-free-adminbar-card-value">' . ahcfree_NumFormat($ahc_sum_stat['today']['visitors']) . '</div>'
        . '<div class="vtrts-free-adminbar-card-sub">' . sprintf(__('%s Visitors Yesterday. ', 'visitors-traffic-real-time-statistics'), ahcfree_NumFormat($ahc_sum_stat['yesterday']['visitors'])) . '</div>'
        . '</div>'
        . '<div class="vtrts-free-adminbar-card">'
        . '<div class="vtrts-free-adminbar-card-title">' . __('Views Today', 'visitors-traffic-real-time-statistics') . '</div>'
        . '<div class="vtrts-free-adminbar-card-value">' . ahcfree_NumFormat($ahc_sum_stat['today']['visits']) . '</div>'
        . '<div class="vtrts-free-adminbar-card-sub">' . sprintf(__('%s Views Yesterday.', 'visitors-traffic-real-time-statistics'), ahcfree_NumFormat($ahc_sum_stat['yesterday']['visits'])) . '</div>'
        . '</div>'
        . '<div class="vtrts-free-adminbar-card">'
        . '<div class="vtrts-free-adminbar-card-title">' . __('Total Visitors', 'visitors-traffic-real-time-statistics') . '</div>'
        . '<div class="vtrts-free-adminbar-card-value">' . ahcfree_NumFormat($ahc_sum_stat['total']['visitors']) . '</div>'
        . '<div class="vtrts-free-adminbar-card-sub">' . __('All Time', 'visitors-traffic-real-time-statistics') . '</div>'
        . '</div>'
        . '<div class="vtrts-free-adminbar-card">'
        . '<div class="vtrts-free-adminbar-card-title">' . __('Total Views', 'visitors-traffic-real-time-statistics') . '</div>'
        . '<div class="vtrts-free-adminbar-card-value">' . ahcfree_NumFormat($ahc_sum_stat['total']['visits']) . '</div>'
        . '<div class="vtrts-free-adminbar-card-sub">' . __('All Time', 'visitors-traffic-real-time-statistics') . '</div>'
        . '</div>'
        . '</div>' . $chart_html
        . '<div class="vtrts-free-adminbar-btn-wrap">'
        . '<a href="' . esc_url(admin_url('admin.php?page=ahc_hits_counter_menu_free')) . '" class="vtrts-free-adminbar-btn">'
        . __('Explore Details', 'visitors-traffic-real-time-statistics') . '</a>'
        . '</div>'
        . '</div>';

// Menu title - Static "Stats" text
    $menu_title = '<span class="ab-icon"></span> ' . __('Stats', 'visitors-traffic-real-time-statistics');

$admin_bar->add_menu(array(
        'id'    => 'vtrts_free_top_button',
        'title' => $menu_title,
        'href'  => false,
        'meta'  => array(
            'title' => __('Visitor Traffic Real Time Statistics', 'visitors-traffic-real-time-statistics'),
            'class' => 'vtrts-free-admin-bar',
        )
    ));

$admin_bar->add_menu(array(
        'id'     => 'vtrts_free_top_button_dropdown',
        'parent' => 'vtrts_free_top_button',
        'title'  => $dropdown_html,
        'href'   => false,
        'meta'   => array('class' => 'vtrts-free-adminbar-dropdown-wrap')
    ));
}

// Chart rendering function for Free version
function vtrts_free_adminbar_chart()
{
    if (!isset($GLOBALS['vtrts_free_chart_data'])) return;

$chart_data = $GLOBALS['vtrts_free_chart_data'];
    $data_points = [];

foreach ($chart_data['labels'] as $index => $label) {
        $data_points[] = [
            'label' => $label,
            'y'     => isset($chart_data['data'][$index]) ? (int)$chart_data['data'][$index] : 0
        ];
    }
?>
    <script type="text/javascript">
        document.addEventListener("DOMContentLoaded", function() {
            const dataPoints = <?php echo json_encode($data_points, JSON_NUMERIC_CHECK); ?>;

function calculateYAxisSettings(dataPoints) {
                if (!dataPoints || dataPoints.length === 0) {
                    return {
                        interval: 1,
                        maximum: 10
                    };
                }

// Find min and max values
                const values = dataPoints.map(point => point.y);
                const maxValue = Math.max(...values);

// If all values are the same or very small
                if (maxValue <= 1) {
                    return {
                        interval: 1,
                        maximum: null
                    };
                }

// بما أن الشارت يستخدم includeZero:true فالنطاق الفعلي هو [0, maxValue]
                // نحسب الـ interval على أساس maxValue لضمان عدد معقول من الـ labels (5-8 labels)
                let interval;

if (maxValue <= 10) {
                    interval = 1;        //  1, 2, 3, ..., 10
                } else if (maxValue <= 20) {
                    interval = 5;        //  5, 10, 15, 20
                } else if (maxValue <= 50) {
                    interval = 10;       //  10, 20, 30, 40, 50
                } else if (maxValue <= 100) {
                    interval = 20;       //  20, 40, 60, 80, 100
                } else if (maxValue <= 200) {
                    interval = 50;       //  50, 100, 150, 200
                } else if (maxValue <= 500) {
                    interval = 100;      //  100, 200, 300, 400, 500
                } else if (maxValue <= 1000) {
                    interval = 200;      //  200, 400, 600, 800, 1000
                } else if (maxValue <= 5000) {
                    interval = 1000;     //  1K, 2K, 3K, 4K, 5K
                } else if (maxValue <= 10000) {
                    interval = 2000;     //  2K, 4K, 6K, 8K, 10K
                } else if (maxValue <= 50000) {
                    interval = 10000;    //  10K, 20K, 30K, 40K, 50K
                } else if (maxValue <= 100000) {
                    interval = 20000;    //  20K, 40K, 60K, 80K, 100K
                } else {
                    // للأرقام الضخمة: قسم إلى ~5 intervals
                    const magnitude = Math.pow(10, Math.floor(Math.log10(maxValue)) - 1);
                    interval = Math.ceil(maxValue / 5 / magnitude) * magnitude;
                }

return {
                    interval: interval,
                    maximum: null // Let CanvasJS decide the maximum
                };
            }

const yAxisSettings = calculateYAxisSettings(dataPoints);

const chart = new CanvasJS.Chart("vtrtsFreeChart", {
                backgroundColor: "#23282d",
                animationEnabled: true,
                width: 420,
                height: 200,
                axisX: {
                    labelFontColor: "#ccc",
                    lineColor: "#444",
                    tickColor: "#444"
                },
                axisY: {
                    labelFontColor: "#ccc",
                    lineColor: "#444",
                    tickColor: "#444",
                    gridColor: "#444",
                    includeZero: true,
                    interval: yAxisSettings.interval,
                    maximum: yAxisSettings.maximum,
                    // Ensure labels are always whole numbers with thousands separator
                    labelFormatter: function(e) {
                        return Math.round(e.value).toLocaleString('en-US');
                    }
                },
                legend: {
                    fontColor: "#fff",
                    fontSize: 12,
                    horizontalAlign: "center",
                    verticalAlign: "bottom",
                    dockInsidePlotArea: false
                },
                data: [{
                    type: "line",
                    name: "Visitors",
                    showInLegend: true,
                    markerType: "circle",
                    markerSize: 8,
                    markerColor: "#1DAE22",
                    color: "#1DAE22",
                    lineThickness: 2,
                    dataPoints: dataPoints
                }]
            });

chart.render();
        });
    </script>
    <?php
}
/**
 * Called when plugin is activated or upgraded
 *
 * @uses add_option()
 * @uses get_option()
 *
 * @return void
 */

function ahcfree_localtime($format = 'Y-m-d H:i:s')
{
    $timezone_name = ahcfree_get_timezone_string();

try {
        $timezone = new DateTimeZone($timezone_name);
        $datetime = new DateTime('now', $timezone);
        return $datetime->format($format);
    } catch (Exception $e) {
        error_log('ahcfree_localtime error: ' . $e->getMessage());
        $datetime = new DateTime('now', new DateTimeZone('UTC'));
        return $datetime->format($format);
    }
}

function vtrts_free_remove_dokan_js_files()
{
    if (isset($_GET['page']) && $_GET['page'] == 'ahc_hits_counter_menu_free') {
        wp_dequeue_script('dokan-tinymce-plugin');
        wp_deregister_script('dokan-tinymce-plugin');
        wp_dequeue_script('dokan-moment');
        wp_deregister_script('dokan-moment');
        wp_dequeue_script('dokan-chart');
        wp_deregister_script('dokan-chart');
        wp_dequeue_script('vue-vendor');
        wp_deregister_script('vue-vendor');
        wp_dequeue_script('dokan-promo-notice-js');
        wp_deregister_script('dokan-promo-notice-js');
        wp_dequeue_script('dps-custom-admin-js');
        wp_deregister_script('dps-custom-admin-js');
    }
}
add_action('admin_print_scripts', 'vtrts_free_remove_dokan_js_files', 1);

/**
 * change plugin settings
 * @return void
 */

function ahcfree_savesettings()
{

global $wpdb;

$ahcproUserRoles_ = '';
    $ahcproExcludeRoles_  = '';
    $verify = isset($_POST['ahc_settings_send']) ? wp_verify_nonce(sanitize_text_field($_POST['ahc_settings_send']), 'ahc_settings_action') : false;

if ($verify && current_user_can('manage_options')) {

$set_hits_days = intval($_POST['set_hits_days']);
        $set_ajax_check = intval($_POST['set_ajax_check']);
        $posts_type = '';
        $set_ips = ahc_free_sanitize_text_or_array_field($_POST['set_ips']);

$set_google_map = '';
        $ahcfree_hide_top_bar_icon = isset($_POST['ahcfree_hide_top_bar_icon']) ? intval($_POST['ahcfree_hide_top_bar_icon']) : '0';
        $ahcfree_ahcfree_haships = isset($_POST['ahcfree_ahcfree_haships']) ? intval($_POST['ahcfree_ahcfree_haships']) : '0';
        $delete_plugin_data = isset($_POST['delete_plugin_data']) ? intval($_POST['delete_plugin_data']) : '';

$custom_timezone_offset = ahc_free_sanitize_text_or_array_field($_POST['set_custom_timezone']);
        if ($custom_timezone_offset && $custom_timezone_offset != '') {
            update_option('ahcfree_custom_timezone', $custom_timezone_offset);
        }

$delete_plugin_data = (isset($delete_plugin_data)) ? intval($delete_plugin_data) : 0;
        update_option('ahcfree_ahcfree_haships', $ahcfree_ahcfree_haships);
        update_option('ahcfree_delete_plugin_data_on_uninstall', $delete_plugin_data);
        update_option('ahcfree_hide_top_bar_icon', $ahcfree_hide_top_bar_icon);

$ahcproExcludeRoles = (isset($_POST['ahcproExcludeRoles']) && is_array($_POST['ahcproExcludeRoles'])) ? ahc_free_sanitize_text_or_array_field($_POST['ahcproExcludeRoles']) : ''; // sanitize inside the loop

if (isset($ahcproExcludeRoles) && is_array($ahcproExcludeRoles)) {
            foreach ($ahcproExcludeRoles as $v) {

$ahcproExcludeRoles_ .= $v . ",";
            }

$ahcproExcludeRoles_ = substr($ahcproExcludeRoles_, 0, -1);

update_option('ahcproExcludeRoles', $ahcproExcludeRoles_);
        }

$ahcproUserRoles = (isset($_POST['ahcproUserRoles']) && is_array($_POST['ahcproUserRoles'])) ? ahc_free_sanitize_text_or_array_field($_POST['ahcproUserRoles']) : ''; // sanitize inside the loop
        if (isset($ahcproUserRoles)) {
            foreach ($ahcproUserRoles as $v) {

$ahcproUserRoles_ .= $v . ",";
            }

$ahcproUserRoles_ = substr($ahcproUserRoles_, 0, -1);
            update_option('ahcproUserRoles', $ahcproUserRoles_);
        }

// --- Geolocation settings ---------------------------------------
        $geo_enabled  = isset($_POST['ahcfree_geoip_enabled']) ? '1' : '0';
        $geo_fallback = isset($_POST['ahcfree_geoip_ext_fallback']) ? '1' : '0';
        update_option('ahcfree_geoip_enabled', $geo_enabled);
        update_option('ahcfree_geoip_ext_fallback', $geo_fallback);

if (isset($_POST['ahcfree_geoip_account_id'])) {
            update_option('ahcfree_geoip_account_id', sanitize_text_field(wp_unslash($_POST['ahcfree_geoip_account_id'])));
        }
        if (isset($_POST['ahcfree_geoip_license_key'])) {
            update_option('ahcfree_geoip_license_key', sanitize_text_field(wp_unslash($_POST['ahcfree_geoip_license_key'])));
        }
        // ----------------------------------------------------------------

ahcfree_update_tables();
        $post_id = $wpdb->get_results("SELECT `set_id` FROM `ahc_settings` WHERE `site_id` =" . get_current_blog_id());
        if (empty($post_id)) {
            $sql = $wpdb->prepare("INSERT INTO `ahc_settings` (`set_id`, `set_hits_days`, `set_ajax_check`, `set_ips`, `set_google_map`, `site_id`) VALUES (NULL, %s, %s, %s, %s ,%s); ", $set_hits_days, $set_ajax_check, $set_ips, $set_google_map, get_current_blog_id());
        } else {
            $sql = $wpdb->prepare(
                "UPDATE `ahc_settings` set `set_hits_days` = %s, `set_ajax_check` = %s, `set_ips` = %s, `set_google_map` = %s  where `site_id`= %d",
                $set_hits_days,
                $set_ajax_check,
                $set_ips,
                $set_google_map,
                get_current_blog_id()
            );
        }

if ($wpdb->query($sql) !== false) {

return true;
        }
    }

return false;
}

//--------------------------------------------
/*
function ahcfree_rate_us($plugin_url, $box_color = '#1D1F21') {

$ret = '
	
	<script language="javascript">
	setTimeout(function() {
		$(\'#ratingdiv\').hide();
	}, 1000);
	</script>
    
	<style type="text/css">
	
	.rate_box{
		
		background-color:' . esc_js($box_color) . ';
		color:#ffffff;
		padding:3px;
	
		
	}
	.rating {
	  unicode-bidi: bidi-override;
	  direction: rtl;
  
	}
	.link_wp{
		
		color:#EDAE42 !important
	}
	
	.rating > span:hover:before,
	.rating > span:hover ~ span:before {
	   content: "\2605";
	   position: absolute;
	   color:yellow;
	}
	
	.rating > span {
	  display: inline-block;
	  position: relative;
	  width: 1.1em;
	  font-size:40px;
	 color:yellow;
	  content: "\2605";
	}
	</style>';

$ret .= '<div class="row rate_box" id="ratingdiv">
<div class="col-md-6">
<br />
<p>
<strong>Do you like this plugin?</strong><br /> Please take a few seconds to <a class="link_wp" href="' . esc_url($plugin_url) . '" target="_blank">rate it on WordPress.org!</a></p>
</div>
<div class="col-md-6">
<div class="rating">';

for ($r = 1; $r <= 5; $r++) {

$ret .= '<span onclick="window.open(\'' . esc_js($plugin_url) . '\',\'_blank\')">☆</span>';
    }

$ret .= '</div>
</div>
</div>';
    return $ret;
}*/

return false;
}

function ahcfree_CleanupTimeZoneString($tzString)
{
    $time = new DateTime('now', new DateTimeZone($tzString));
    return $time->format('P');

/*$offset=$tzString;
     
     
     if (preg_match('/^UTC[+-]/', $tzString)) {
       $tzString= preg_replace('/UTC\+?/', '', $tzString);
    }
    if(is_numeric($tzString)){
        $offset=sprintf('%02d:%02d', (int) $tzString, fmod(abs($tzString), 1) * 60);
        if((int) $tzString>0){
            $offset='+'.$offset;
        }
    }
    return $offset;*/
}

function ahcfree_get_timezone_string()
{
    // First, try the custom timezone option
    $custom_timezone = get_option('ahcfree_custom_timezone');
    if (!empty($custom_timezone) && in_array($custom_timezone, timezone_identifiers_list())) {
        return $custom_timezone;
    }

// Fallback to WordPress timezone_string
    $wp_timezone = get_option('timezone_string');
    if (!empty($wp_timezone) && in_array($wp_timezone, timezone_identifiers_list())) {
        return $wp_timezone;
    }

// Final fallback
    return 'UTC';
}

/**
 * Get WordPress timezone string with proper fallback (matches pro version)
 */
function ahcfree_GetWPTimezoneString()
{
    // if site timezone string exists, return it
    if ($timezone = get_option('timezone_string'))
        return $timezone;

// get UTC offset, if it isn't set then return UTC
    if (0 === ($utc_offset = get_option('gmt_offset', 0)))
        return 'UTC';

// adjust UTC offset from hours to seconds
    $utc_offset *= 3600;

// attempt to guess the timezone string from the UTC offset
    if ($timezone = timezone_name_from_abbr('', $utc_offset, 0)) {
        return $timezone;
    }

// last try, guess timezone string manually
    $is_dst = date('I');

foreach (timezone_abbreviations_list() as $abbr) {
        foreach ($abbr as $city) {
            if ($city['dst'] == $is_dst && $city['offset'] == $utc_offset)
                return $city['timezone_id'];
        }
    }

// fallback to UTC
    return 'UTC';
}
function ahcfree_get_current_timezone_offset()
{
    $timezone_name = ahcfree_get_timezone_string();

try {
        $timezone = new DateTimeZone($timezone_name);
        $datetime = new DateTime('now', $timezone);
        return $datetime->format('P'); // Returns +03:00 format
    } catch (Exception $e) {
        error_log('ahcfree_get_current_timezone_offset error: ' . $e->getMessage());
        return '+00:00';
    }
}

function ahcfree_last_hit_date()
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $sql = "SELECT max(CONVERT_TZ(vtr_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "')) as last_date FROM ahc_recent_visitors where site_id =" . get_current_blog_id();
    //echo $sql = "SELECT max(vtr_date)) as last_date FROM ahc_recent_visitors";
    $result = $wpdb->get_results($sql, OBJECT);
    if ($result !== false) {
        return $result[0]->last_date;
    }
    return ahcfree_localtime('Y-m-d', time());
}

function ahcfree_getSearchEnginesCount()
{
    global $wpdb;
    $result = $wpdb->get_results("SELECT COUNT(  `srh_id` ) cnt FROM ahc_search_engines", OBJECT);
    if ($result !== false) {
        return $result[0]->cnt;
    }
    return false;
}

function ahcfree_set_default_options()
{

//if (is_multisite())
    //   die('<b style="color:red">Sorry, This plugin can\'t be activated networkwide :(</b>');

// plugin activation

if (is_plugin_active('visitors-traffic-real-time-statistics-pro/visitors-traffic-real-time-statistics-pro.php')) {
        deactivate_plugins('visitors-traffic-real-time-statistics-pro/visitors-traffic-real-time-statistics-pro.php');
    }
    require_once("database_basics_data.php");
    if (get_option('ahcfree_wp_hits_counter_options') === false) {

$plugin_options = array();
        $plugin_options['ahc_version'] = '1.0';
        $plugin_options['available_languages'] = array('ar' => 'عربي', 'en' => 'English');
        $plugin_options['ahc_lang'] = 'en';
        $plugin_options['user_roles_to_not_track'] = array('administrator' => true, 'editor' => true, 'author' => true, 'contributor' => true, 'subscriber' => false);
        add_option('ahcfree_wp_hits_counter_options', $plugin_options);
    }
    set_time_limit(300);
    if (ahcfree_create_database_tables()) {

if (is_multisite()) {
            $get_site_ids = get_sites();
            foreach ($get_site_ids as $row) {
                if (ahcfree_getCountriesCount($row->blog_id) == 0) {
                    ahcfree_insert_countries_into_table($internetCountryCodes, $contriesLatLng, $row->blog_id);
                }
                if (ahcfree_getVisitsTime($row->blog_id) == 0) {
                    ahcfree_insert_visit_times_into_table($dayHours, $row->blog_id);
                }
                if (ahcfree_getBrowsersCount($row->blog_id) == 0) {
                    ahcfree_insert_browsers_into_table($browsers, $row->blog_id);
                }
            }
        } else {
            if (ahcfree_getCountriesCount(1) == 0) {
                ahcfree_insert_countries_into_table($internetCountryCodes, $contriesLatLng, 1);
            }
            if (ahcfree_getVisitsTime(1) == 0) {
                ahcfree_insert_visit_times_into_table($dayHours, 1);
            }
            if (ahcfree_getBrowsersCount(1) == 0) {
                ahcfree_insert_browsers_into_table($browsers, 1);
            }
        }

if (ahcfree_getSearchEnginesCount() == 0) {
            ahcfree_insert_search_engines_into_table($searchEngines);
        }
    }
}

if (is_multisite()) {
    add_action('wp_initialize_site', 'ahcfree_action_wp_initialize_site', 900);
    function ahcfree_action_wp_initialize_site(WP_Site $new_site)
    {
        $site_id = $new_site->blog_id;
        require_once("database_basics_data.php");
        if (ahcfree_getCountriesCount($site_id) == 0) {
            ahcfree_insert_countries_into_table($internetCountryCodes, $contriesLatLng, $site_id);
        }
        if (ahcfree_getVisitsTime($site_id) == 0) {
            ahcfree_insert_visit_times_into_table($dayHours, $site_id);
        }
        if (ahcfree_getBrowsersCount($site_id) == 0) {
            ahcfree_insert_browsers_into_table($browsers, $site_id);
        }
    }
}
//--------------------------------------------
/**
 * Creates plugin page link in the admin menu
 *
 * @uses add_menu_page()
 * @uses plugins_url()
 *
 * @return void
 */
function ahcfree_create_admin_menu_link()
{

global $current_user;
    $ahcUserRoles = str_ireplace('Array', '', get_option('ahcproUserRoles'));

$ahcproUserRole = explode(',', $ahcUserRoles);

$roles_arr = array();

foreach ($ahcproUserRole as $k => $v) {

$roles_arr[] = strtolower($v);
    }

$current_use_roles_ = $current_user->roles;
    // $current_use_roles_ = strtolower($current_use_roles_[0]);
    $current_use_roles_ = isset($current_use_roles_[1]) ? strtolower($current_use_roles_[1]) : strtolower($current_use_roles_[0]);

if (!in_array($current_use_roles_, $roles_arr) && !current_user_can('manage_options')) {
        return;
    }

add_menu_page('Visitor Traffic Real Time Statistics Free', 'Visitor Traffic', 'read', 'ahc_hits_counter_menu_free', 'ahcfree_create_plugin_overview_page', plugins_url('images/vtrts.png', AHCFREE_PLUGIN_MAIN_FILE));
    add_submenu_page('ahc_hits_counter_menu_free', 'Settings', 'Settings', 'manage_options', 'ahc_hits_counter_settings', 'ahcfree_create_plugin_settings_page');
    add_submenu_page('ahc_hits_counter_menu_free', 'Contact Support', 'Help', 'manage_options', 'ahc_hits_counter_help', 'ahcfree_create_plugin_help_page');

$ahcfree_custom_timezone = get_option('ahcfree_custom_timezone', false);
    if (!$ahcfree_custom_timezone) {

update_option('ahcfree_custom_timezone', get_option('timezone_string'));
        add_action('admin_notices', 'ahcfree_admin_notice_to_set_timezone');
    }
    $page = isset($_GET['page']) ? ahc_free_sanitize_text_or_array_field($_GET['page']) : '';

if ($page == 'ahc_hits_counter_settings') {
        remove_action('admin_notices', 'ahcfree_admin_notice_to_set_timezone');
    }
}

//--------------------------------------------
/**
 * Format numbers
 *
 * @return number
 */
function ahcfree_NumFormat($num)
{
    if ($num > 1000) {
        return number_format($num, 0, ',', ',');
    } else {
        return $num;
    }
}

function ahcfree_init()
{
    //add_action('wp_ajax_ahcfree_countOnlineusers','ahcfree_countOnlineusers');	
    add_action('wp_ajax_ahcfree_track_visitor', 'ahcfree_track_visitor');
    add_action('wp_ajax_nopriv_ahcfree_track_visitor', 'ahcfree_track_visitor');

ahcfree_update_tables();
}
add_action('admin_init', 'ahcfree_init');

// ملاحظة: لا نربط front.js بـ jquery/heartbeat كـ dependencies.
    // جزء تسجيل الزيارة في front.js يستخدم XMLHttpRequest خام ولا يحتاج jQuery،
    // بينما جزء الـ Heartbeat ينتظر jQuery داخلياً. ربط الملف بـ jquery كان
    // يمنع تحميله كلياً على المواقع التي تؤجّل أو تُزيل jQuery (إضافات الأداء)،
    // فيتوقف التسجيل. إزالة الاعتماد تضمن تحميل التتبّع دائماً.
    wp_register_script('ahc_front_js', plugins_url('js/front.js', AHCFREE_PLUGIN_MAIN_FILE), array(), AHCFREE_VERSION, true);
    wp_enqueue_script('ahc_front_js');

wp_localize_script('ahc_front_js', 'ahc_ajax_front', array(
        'ajax_url' => admin_url('admin-ajax.php'),
        'plugin_url' => plugin_dir_url(__FILE__), // Add this line
        'page_id' => $post_id,
        'page_title' => $page_title,
        'post_type' => $post_type,
        'visitor_ip' => ahcfree_get_client_ip_address()
    ));
}
add_action('wp_enqueue_scripts', 'ahcfree_enqueue_scripts', 1);
//--------------------------------------------
/**
 * Creates the main overview page
 *
 * @return void
 */
function ahcfree_create_plugin_overview_page()
{
    require_once(AHCFREE_PLUGIN_ROOT_DIR . AHCFREE_DS . 'lang' . AHCFREE_DS . GlobalsAHC::$lang . '_lang.php');
    include("overview.php");
}

//--------------------------------------------
/**
 * Creates the plugin settings
 *
 * @return void
 */
function ahcfree_create_plugin_settings_page()
{

require_once(AHCFREE_PLUGIN_ROOT_DIR . AHCFREE_DS . 'lang' . AHCFREE_DS . GlobalsAHC::$lang . '_lang.php');
    include("ahc_settings.php");
}

//--------------------------------------------
/**
 * Creates the plugin help page
 *
 * @return void
 */
function ahcfree_create_plugin_help_page()
{

require_once(AHCFREE_PLUGIN_ROOT_DIR . AHCFREE_DS . 'lang' . AHCFREE_DS . GlobalsAHC::$lang . '_lang.php');
    include("ahc_help.php");
}

//--------------------------------------------
/**
 * Creates the plugin help page
 *
 * @return void
 */
function ahcfree_create_plugin_about_page()
{

require_once(AHCFREE_PLUGIN_ROOT_DIR . AHCFREE_DS . 'lang' . AHCFREE_DS . GlobalsAHC::$lang . '_lang.php');
    include("ahc_about.php");
}

//--------------------------------------------
/**
 * Returns links array of available languages
 *
 * @uses get_option()
 * @uses add_query_arg()
 *
 * @return array
 */
function ahcfree_get_change_lang_links()
{
    $plugin_options = get_option('ahcfree_wp_hits_counter_options');
    $links = array();
    $i = 0;
    foreach ($plugin_options['available_languages'] as $key => $value) {
        if (GlobalsAHC::$lang != $key) {
            $links[$i]['name'] = $value;
            $links[$i]['href'] = add_query_arg('ahc_lang', $key);
            $i++;
        }
    }
    unset($plugin_options);
    unset($i);
    return $links;
}

//--------------------------------------------
/**
 * Decides whether or not should track the current visitor
 *
 * @uses is_user_logged_in()
 * @uses WP_User::$roles
 *
 * @return boolean
 */
function ahcfree_should_track_visitor()
{
    global $current_user;
    $allow = true;

if (is_user_logged_in()) {
        $user = new WP_User($current_user->ID);
        if (!empty($user->roles) && is_array($user->roles)) {
            foreach ($user->roles as $role) {

$ahcproExcludeRoles = get_option('ahcproExcludeRoles');
                if (isset($ahcproExcludeRoles)) {

$ahcproExcludeRoles = explode(',', $ahcproExcludeRoles);
                    foreach ($ahcproExcludeRoles as $k => $v) {
                        if (strtolower($v) == strtolower($role)) {
                            return false;
                        }
                    }
                }
                /*$found = (isset(GlobalsPro::$plugin_options['user_roles_to_not_track'][$role])) ? GlobalsPro::$plugin_options['user_roles_to_not_track'][$role] : false;
                if ($found) {
                    $allow = false;
                    break;
                }*/
            }
        }
    }
    return true;
}

//--------------------------------------------
/**
 * Returns true if the current user has administrator role
 *
 * @uses is_user_logged_in()
 * @uses WP_User::$roles
 *
 * @return boolean
 */
function ahcfree_has_administrator_role()
{
    global $user_ID;
    $is_admin = false;
    if (is_user_logged_in()) {
        $user = new WP_User($user_ID);
        if (!empty($user->roles) && is_array($user->roles)) {
            foreach ($user->roles as $role) {
                if ($role == 'administrator') {
                    $is_admin = true;
                    break;
                }
            }
        }
    }
    return $is_admin;
}

//--------------------------------------------
/**
 * Check if column exist or not
 *
 * @uses wpdb::query()
 *
 * @return boolean
 */
function ahcfree_check_table_column_exists($table_name, $column_name)
{
    global $wpdb;
    $column = $wpdb->get_row($wpdb->prepare("SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s AND COLUMN_NAME = %s ", DB_NAME, $table_name, $column_name));

if (!empty($column)) {
        return true;
    }
    return false;
}

//--------------------------------------------
/**
 * Check if index exist or not
 *
 * @uses wpdb::query()
 *
 * @return boolean
 */
function ahcfree_check_column_index_exists($table_name, $column_name)
{
    global $wpdb;

$column = $wpdb->get_row("show index from " . $table_name . " where column_name='" . $column_name . "' ");

if (!empty($column)) {

return true;
    }

return false;
}

//--------------------------------------------
/**
 * Check if Table exist or not
 *
 * @uses wpdb::query()
 *
 * @return boolean
 */
function ahcfree_check_table_exists($table_name)
{
    global $wpdb;
    $table_data = $wpdb->get_row($wpdb->prepare("SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s", DB_NAME, $table_name));

if (!empty($table_data)) {

return true;
    }

return false;
}

//--------------------------------------------
/**
 * Creates database updates plugin tables
 *
 * @uses wpdb::query()
 *
 * @return boolean
 */
function ahcfree_update_tables()
{
    global $wpdb;
    $sqlQueries = array();

if (!ahcfree_check_column_index_exists('ahc_visitors', 'vst_date')) {

$sqlQueries[] = "alter table ahc_visitors add index idx_vst_date(vst_date)";
    }

foreach ($sqlQueries as $sql) {
        $wpdb->query($sql);
    }
	
	
	 if (get_option('ahc_db_indexes_ahc_online_users_added')) {
        return;
    }

$wpdb->query("ALTER TABLE ahc_hits ADD INDEX idx_hit_date (hit_date)");
    $wpdb->query("ALTER TABLE ahc_hits ADD INDEX idx_ip_page (hit_ip_address, hit_page_id)");
    $wpdb->query("ALTER TABLE ahc_online_users ADD INDEX idx_online_date (`date`)");

update_option('ahc_db_indexes_ahc_online_users_added', 1);
}

function ahcfree_add_settings()
{

global $wpdb;

$sql_ahc_settings = "CREATE TABLE  IF NOT EXISTS `ahc_settings` (
			  `set_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
			  `set_hits_days` int(10) unsigned NOT NULL DEFAULT '14',
			  `set_ajax_check` int(10) unsigned NOT NULL DEFAULT '10',
			  `set_ips` text DEFAULT NULL,
			  `set_google_map` varchar(100) NOT NULL DEFAULT 'today_visitors',
			  `site_id` INT(11) NOT NULL DEFAULT '1',
			  
			  PRIMARY KEY (`set_id`)
			)  DEFAULT CHARSET=utf8";

$wpdb->query($sql_ahc_settings);

//  $sql1 = "truncate table `ahc_settings`";
    //  $wpdb->query($sql1);

$sql = "insert ignore  into `ahc_settings` ( set_hits_days, set_ajax_check, set_ips, set_google_map,site_id) values (14, 15, null, 'today_visitors'," . get_current_blog_id() . ")";

if ($wpdb->query($sql) === false) {
        //return false;
    }
    return true;
}

//--------------------------------------------
/**
 * Creates database plugin tables
 *
 * @uses wpdb::query()
 *
 * @return boolean
 */
function ahcfree_create_database_tables()
{
    global $wpdb;
    $sqlQueries = array();

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_online_users`
			(
			`id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY(`id`),
			`hit_ip_address` VARCHAR(50) NOT NULL,
			`hit_page_id` VARCHAR(30) NOT NULL,
			`date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_hits`
			(
			`hit_id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY(`hit_id`),
			`hit_ip_address` VARCHAR(50) NOT NULL,
			`hit_user_agent` VARCHAR(200) NOT NULL,
			`hit_request_uri` VARCHAR(200) NULL,
			`hit_page_id` VARCHAR(30) NOT NULL,
			`hit_page_title` VARCHAR(200) NULL,
			`ctr_id` INT(3) UNSIGNED NULL,
			`hit_referer` VARCHAR(300) NULL,
			`hit_referer_site` VARCHAR(100) NULL,
			`srh_id` INT(3) UNSIGNED NULL,
			`hit_search_words` VARCHAR(200) NULL,
			`bsr_id` INT(3) UNSIGNED NOT NULL,
			`hit_date` DATE NOT NULL,
			`hit_time` TIME NOT NULL
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE  IF NOT EXISTS `ahc_settings` (
			  `set_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
			  `set_hits_days` int(10) unsigned NOT NULL DEFAULT '14',
			  `set_ajax_check` int(10) unsigned NOT NULL DEFAULT '10',
			  `set_ips` text DEFAULT NULL,
			  `set_google_map` varchar(100) NOT NULL DEFAULT 'today_visitors',
			  
			  PRIMARY KEY (`set_id`)
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_browsers`
			(
			`bsr_id` INT(3) UNSIGNED NOT NULL,
			PRIMARY KEY(`bsr_id`),
			`bsr_name` VARCHAR(100) NOT NULL,
			`bsr_icon` VARCHAR(50),
			`bsr_visits` INT(11) NOT NULL DEFAULT 0
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_search_engines`
			(
			`srh_id` INT(3) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY(`srh_id`),
			`srh_name` VARCHAR(100) NOT NULL,
			`srh_query_parameter` VARCHAR(10) NOT NULL,
			`srh_icon` VARCHAR(50),
			`srh_identifier` VARCHAR(50)
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_search_engine_crawlers`
			(
			`bot_name` VARCHAR(50) NOT NULL,
			`srh_id` INT(3) UNSIGNED NOT NULL
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_countries`
			(
			`ctr_id` INT(5) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY(`ctr_id`),
			`ctr_name` VARCHAR(100) NOT NULL,
			`ctr_internet_code` VARCHAR(5) NOT NULL,
			`ctr_latitude` VARCHAR(30) NULL,
			`ctr_longitude` VARCHAR(30) NULL,
			`ctr_visitors` INT(11) NOT NULL DEFAULT 0,
			`ctr_visits` INT(11) NOT NULL DEFAULT 0
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_visitors`
			(
			`vst_id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY (`vst_id`),
			`vst_date` DATE NOT NULL,
			`vst_visitors` INT(11) UNSIGNED NULL DEFAULT 0,
			`vst_visits` INT(11) UNSIGNED NULL DEFAULT 0
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "ALTER TABLE `ahc_visitors` CHANGE `vst_date` `vst_date` DATETIME NOT NULL";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_daily_visitors_stats`
			(
			`id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY (`id`),
			`vst_date` DATETIME NOT NULL,
			`vst_visitors` INT(11) UNSIGNED NULL DEFAULT 0,
			`vst_visits` INT(11) UNSIGNED NULL DEFAULT 0
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_searching_visits`
			(
			`vtsh_id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY (`vtsh_id`),
			`srh_id` INT(3) UNSIGNED NOT NULL,
			`vtsh_date` DATE NOT NULL,
			`vtsh_visits` INT(11) UNSIGNED NOT NULL DEFAULT 0
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "ALTER TABLE `ahc_searching_visits` CHANGE `vtsh_date` `vtsh_date` DATETIME NOT NULL";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_refering_sites`
			(
			`rfr_id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY (`rfr_id`),
			`rfr_site_name` VARCHAR(100) NOT NULL,
			`rfr_visits` INT(11) UNSIGNED NULL DEFAULT 0
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_recent_visitors`
			(
			`vtr_id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY (`vtr_id`),
			`vtr_ip_address` VARCHAR(50) NOT NULL,
			`vtr_referer` VARCHAR(300) NULL,
			`srh_id` INT(3) UNSIGNED NULL,
			`bsr_id` INT(3) UNSIGNED NOT NULL,
			`ctr_id` INT(5) UNSIGNED NULL,
			`vtr_date` DATE NOT NULL,
			`vtr_time` TIME NOT NULL,
			`ahc_city` varchar(230) NULL,
			`ahc_region` varchar(230) NULL
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_keywords`
			(
			`kwd_id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY (`kwd_id`),
			`kwd_ip_address` VARCHAR(50) NOT NULL,
			`kwd_keywords` VARCHAR(200) NOT NULL,
			`kwd_referer` VARCHAR(300) NOT NULL,
			`srh_id` INT(3) UNSIGNED NOT NULL,
			`ctr_id` INT(5) UNSIGNED NULL,
			`bsr_id` INT(3) UNSIGNED NOT NULL,
			`kwd_date` DATE NOT NULL,
			`kwd_time` TIME NOT NULL
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_title_traffic`
			(
			`til_id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY (`til_id`),
			`til_page_id` VARCHAR(30) NOT NULL,
			`til_page_title` VARCHAR(100),
			`til_hits` INT(11) UNSIGNED NOT NULL
			)  DEFAULT CHARSET=utf8";

$sqlQueries[] = "CREATE TABLE IF NOT EXISTS `ahc_visits_time`
			(
			`vtm_id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
			PRIMARY KEY (`vtm_id`),
			`vtm_time_from` TIME NOT NULL,
			`vtm_time_to` TIME NOT NULL,
			`vtm_visitors` INT(11) UNSIGNED NOT NULL DEFAULT 0,
			`vtm_visits` INT(11) UNSIGNED NOT NULL DEFAULT 0
			)  DEFAULT CHARSET=utf8";

foreach ($sqlQueries as $sql) {
        if ($wpdb->query($sql) === false) {
            return false;
        }
    }
    return true;
}
function ahcfree_multisite_init()
{

global $wpdb;
    $sqlQueries = array();
    if (ahcfree_check_table_exists('ahc_browsers') === true && !ahcfree_check_table_column_exists('ahc_browsers', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_browsers` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_countries') === true && !ahcfree_check_table_column_exists('ahc_countries', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_countries` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_daily_visitors_stats') === true && !ahcfree_check_table_column_exists('ahc_daily_visitors_stats', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_daily_visitors_stats` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_hits') === true && !ahcfree_check_table_column_exists('ahc_hits', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_hits` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_keywords') === true && !ahcfree_check_table_column_exists('ahc_keywords', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_keywords` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_online_users') === true && !ahcfree_check_table_column_exists('ahc_online_users', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_online_users` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_recent_visitors') === true && !ahcfree_check_table_column_exists('ahc_recent_visitors', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_recent_visitors` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_refering_sites') === true && !ahcfree_check_table_column_exists('ahc_refering_sites', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_refering_sites` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_searching_visits') === true && !ahcfree_check_table_column_exists('ahc_searching_visits', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_searching_visits` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_search_engine_crawlers') === true && !ahcfree_check_table_column_exists('ahc_search_engine_crawlers', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_search_engine_crawlers` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_settings') === true && !ahcfree_check_table_column_exists('ahc_settings', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_settings` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_title_traffic') === true && !ahcfree_check_table_column_exists('ahc_title_traffic', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_title_traffic` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_visitors') === true && !ahcfree_check_table_column_exists('ahc_visitors', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_visitors` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    if (ahcfree_check_table_exists('ahc_visits_time') === true && !ahcfree_check_table_column_exists('ahc_visits_time', 'site_id')) {
        $sqlQueries[] = "ALTER TABLE `ahc_visits_time` ADD `site_id` INT(11) NOT NULL DEFAULT '1';";
    }
    $sqlQueries[] = "ALTER TABLE `ahc_settings` CHANGE `set_id` `set_id` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT";

$sqlQueries[] = "ALTER TABLE `ahc_browsers` CHANGE `bsr_id` `bsr_id` INT(3) UNSIGNED NOT NULL AUTO_INCREMENT";
    if (count($sqlQueries)) {
        foreach ($sqlQueries as $sql) {
            $wpdb->query($sql);
        }
    }
}

//--------------------------------------------
/**
 * Inserts countries into ahc_countroes table
 *
 * @uses wpdb::insert()
 *
 * @param array $internetCountryCodes. internet codes and names of countries
 * @param array $contriesLatLng. LatLng of countries
 * @return boolean
 */
function ahcfree_insert_countries_into_table($internetCountryCodes, $contriesLatLng, $site_id = 1)
{
    global $wpdb;
    $c = 1;
    $length = count($internetCountryCodes);
    foreach ($internetCountryCodes as $internetCode => $countryName) {
        $ctr_latitude = $ctr_longitude = NULL;
        if (isset($contriesLatLng[$internetCode])) {
            $ctr_latitude = $contriesLatLng[$internetCode][0];
            $ctr_longitude = $contriesLatLng[$internetCode][1];
        }
        $result = $wpdb->insert(
            'ahc_countries',
            array(
                'ctr_name' => $countryName,
                'ctr_internet_code' => $internetCode,
                'ctr_latitude' => $ctr_latitude,
                'ctr_longitude' => $ctr_longitude,
                'site_id' => $site_id
            ),
            array(
                '%s',
                '%s',
                '%s',
                '%s',
                '%d'
            )
        );
        if ($result === false) {
            return false;
        }
    }
    return true;
}

//--------------------------------------------
/**
 * Inserts search engines into ahc_search_engines table
 *
 * @uses wpdb::insert()
 * @uses wpdb::$insert_id
 *
 * @param array $searchEngines.
 * @return boolean
 */
function ahcfree_insert_search_engines_into_table($searchEngines)
{
    global $wpdb;
    foreach ($searchEngines as $se) {
        $result = $wpdb->insert(
            'ahc_search_engines',
            array(
                'srh_name' => $se['srh_name'],
                'srh_query_parameter' => $se['srh_query_parameter'],
                'srh_icon' => $se['srh_icon'],
                'srh_identifier' => $se['srh_identifier']
            ),
            array(
                '%s',
                '%s',
                '%s',
                '%s'
            )
        );
        if ($result !== false) {
            $srh_id = $wpdb->insert_id;
            if (is_multisite()) {
                $get_site_ids = get_sites();
                foreach ($get_site_ids as $row) {

foreach ($se['crawlers'] as $crawler) {
                        $result2 = $wpdb->insert(
                            'ahc_search_engine_crawlers',
                            array(
                                'bot_name' => $crawler,
                                'srh_id' => $srh_id,
                                'site_id' => $row->blog_id
                            ),
                            array(
                                '%s',
                                '%d',
                                '%d'
                            )
                        );
                        if ($result2 === false) {
                            return false;
                        }
                    }
                }
            } else {
                foreach ($se['crawlers'] as $crawler) {
                    $result2 = $wpdb->insert(
                        'ahc_search_engine_crawlers',
                        array(
                            'bot_name' => $crawler,
                            'srh_id' => $srh_id,
                            'site_id' => 1
                        ),
                        array(
                            '%s',
                            '%d',
                            '%d'
                        )
                    );
                    if ($result2 === false) {
                        return false;
                    }
                }
            }
        } else {
            return false;
        }
    }
    return true;
}

//--------------------------------------------
/**
 * Inserts browsers into ahc_browsers table
 *
 * @uses wpdb::insert()
 *
 * @param array $browsers
 * @return boolean
 */
function ahcfree_insert_browsers_into_table($browsers, $site_id = 1)
{
    global $wpdb;
    foreach ($browsers as $browser) {
        $result = $wpdb->insert(
            'ahc_browsers',
            array(
                'bsr_id' => $browser['bsr_id'],
                'bsr_name' => $browser['bsr_name'],
                'bsr_icon' => $browser['bsr_icon'],
                'site_id' => $site_id
            ),
            array(
                '%d',
                '%s',
                '%s',
                '%d'
            )
        );
        if ($result === false) {
            return false;
        }
    }
    return true;
}

//--------------------------------------------
/**
 * Inserts periods into ahc_visits_time table
 *
 * @uses wpdb::insert()
 *
 * @param array $dayHours
 * @return boolean
 */
function ahcfree_insert_visit_times_into_table($dayHours, $site_id = 1)
{
    global $wpdb;
    foreach ($dayHours as $t) {
        $result = $wpdb->insert(
            'ahc_visits_time',
            array(
                'vtm_time_from' => $t['vtm_time_from'],
                'vtm_time_to' => $t['vtm_time_to'],
                'vtm_visitors' => 0,
                'site_id' => $site_id
            ),
            array(
                '%s',
                '%s',
                '%d',
                '%d'
            )
        );
        if ($result === false) {
            return false;
        }
    }
    return true;
}

//--------------------------------------------
/**
 * Returns the first and last days of the week of the date you pass
 *
 * @param string $date
 * @param string $format Optional
 * @return array
 */
function ahcfree_get_week_limits($date, $format = 'Y-m-d')
{
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $beginingDay = new DateTime($date);
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());
    $endingDay = new DateTime($date);
    $date = new DateTime($date);
    /*
    switch ($date->format('w')) {
        case 0: // sun
            //$beginingDay->modify('-1 day');
            $endingDay->modify('+6 day');
            break;

case 1: // mon
            $beginingDay->modify('-1 day');
            $endingDay->modify('+5 day');
            break;

case 2: // Tue
            $beginingDay->modify('-2 day');
            $endingDay->modify('+4 day');
            break;

case 3: // Wed
            $beginingDay->modify('-3 day');
            $endingDay->modify('+3 day');
            break;

case 4: // Thu
            $beginingDay->modify('-4 day');
            $endingDay->modify('+2 day');
            break;

case 6: // Fri
            $beginingDay->modify('-5 day');
            $endingDay->modify('+1 day');
            break;
    }*/

$beginingDay->modify('-6 day');
    //$endingDay->modify();

$day = ahcfree_localtime('w');

//$beginingDay->modify('-'.$day.' days');
    //$endingDay->modify('+'.(6-$day).' days');
    return array(0 => $beginingDay->format($format), 1 => $endingDay->format($format));
}

//--------------------------------------------
/**
 * Return summary statistics of visitors and visits
 *
 * @return array
 */
function ahcfree_get_summary_statistics()
{
    $arr = array();
    $arr['today'] = ahcfree_get_visitors_visits_in_period('today');
    $arr['yesterday'] = ahcfree_get_visitors_visits_in_period('yesterday');
    $arr['week'] = ahcfree_get_visitors_visits_in_period('week'); // last 7 days
    $arr['month'] = ahcfree_get_visitors_visits_in_period('month');
    $arr['year'] = ahcfree_get_visitors_visits_in_period('year');
    $arr['total'] = ahcfree_get_visitors_visits_in_period();

// Add enhanced statistics for TOTAL only
    $arr['total']['new_visitors'] = ahcfree_get_new_visitors_total();
    $arr['total']['returning_visitors'] = ahcfree_get_returning_visitors_total();
    $arr['total']['bounce_rate'] = ahcfree_get_bounce_rate_total();
    $arr['total']['avg_session_duration'] = ahcfree_get_avg_session_duration_total();

return $arr;
}

/**
 * Get last 7 days breakdown for sparkline charts in dashboard boxes
 * Returns visitors and visits per day for the last 7 days (oldest to newest)
 *
 * @return array [['date'=>'YYYY-MM-DD','visitors'=>int,'visits'=>int], ...]
 */
function ahcfree_get_last_7_days_data()
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());
    $site_id = get_current_blog_id();

// Build array for last 7 days (oldest to newest)
    $days = array();
    for ($i = 6; $i >= 0; $i--) {
        $d = new DateTime('now', $custom_timezone);
        $d->modify('-' . $i . ' day');
        $days[$d->format('Y-m-d')] = array(
            'date'     => $d->format('Y-m-d'),
            'visitors' => 0,
            'visits'   => 0,
        );
    }

$start_date = array_keys($days)[0];
    $end_date   = array_keys($days)[6];

$sql = $wpdb->prepare(
        "SELECT DATE(CONVERT_TZ(vst_date, %s, %s)) AS dt,
                SUM(vst_visitors) AS visitors,
                SUM(vst_visits)   AS visits
         FROM `ahc_visitors`
         WHERE site_id = %d
           AND DATE(CONVERT_TZ(vst_date, %s, %s)) >= %s
           AND DATE(CONVERT_TZ(vst_date, %s, %s)) <= %s
         GROUP BY DATE(CONVERT_TZ(vst_date, %s, %s))",
        AHCFREE_SERVER_CURRENT_TIMEZONE, $custom_timezone_offset,
        $site_id,
        AHCFREE_SERVER_CURRENT_TIMEZONE, $custom_timezone_offset, $start_date,
        AHCFREE_SERVER_CURRENT_TIMEZONE, $custom_timezone_offset, $end_date,
        AHCFREE_SERVER_CURRENT_TIMEZONE, $custom_timezone_offset
    );

$results = $wpdb->get_results($sql, OBJECT);
    if (is_array($results)) {
        foreach ($results as $row) {
            if (isset($days[$row->dt])) {
                $days[$row->dt]['visitors'] = (int) $row->visitors;
                $days[$row->dt]['visits']   = (int) $row->visits;
            }
        }
    }

return array_values($days);
}

//--------------------------------------------
/**
 * Return counts visitors and visits in certain day (today|yesterday), certain period(last week, last month, last year) or total
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @param string $period Optional
 * @return mixed
 */
function ahcfree_get_visitors_visits_in_period($period = 'total')
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());

$current_date = new DateTime();
    $current_date->setTimezone($custom_timezone);
    $date = new DateTime();
    $date->setTimezone($custom_timezone);

$base_sql = "SELECT SUM(vst_visitors) AS vst_visitors, SUM(vst_visits) AS vst_visits
                 FROM `ahc_visitors`
                 WHERE site_id = %d";

$site_id = get_current_blog_id();
    $results = false;

switch ($period) {
        case 'today':
            $sql = $wpdb->prepare(
                $base_sql . " AND DATE(CONVERT_TZ(vst_date, %s, %s)) = %s",
                $site_id,
                AHCFREE_SERVER_CURRENT_TIMEZONE,
                $custom_timezone_offset,
                ahcfree_localtime('Y-m-d')
            );
            $results = $wpdb->get_results($sql, OBJECT);
            break;

case 'yesterday':
            $date->modify('-1 day');
            $sql = $wpdb->prepare(
                $base_sql . " AND DATE(CONVERT_TZ(vst_date, %s, %s)) = %s",
                $site_id,
                AHCFREE_SERVER_CURRENT_TIMEZONE,
                $custom_timezone_offset,
                $date->format('Y-m-d')
            );
            $results = $wpdb->get_results($sql, OBJECT);
            break;

case 'week': // last 7 days
            $end_date = $current_date->format('Y-m-d');
            $start_date = $date->modify('-7 days')->format('Y-m-d');

$sql = $wpdb->prepare(
                $base_sql . " AND DATE(CONVERT_TZ(vst_date, %s, %s)) BETWEEN %s AND %s",
                $site_id,
                AHCFREE_SERVER_CURRENT_TIMEZONE,
                $custom_timezone_offset,
                $start_date,
                $end_date
            );
            $results = $wpdb->get_results($sql, OBJECT);
            break;

case 'month':
            $end_date = $current_date->format('Y-m-d');
            $start_date = $date->modify('-30 days')->format('Y-m-d');

case 'year':
            $end_date = $current_date->format('Y-m-d');
            $start_date = $date->modify('-365 days')->format('Y-m-d');

default:
            $sql = $wpdb->prepare($base_sql, $site_id);
            $results = $wpdb->get_results($sql, OBJECT);
    }

if ($results !== false && !empty($results)) {
        return array(
            'visitors' => (empty($results[0]->vst_visitors) ? 0 : $results[0]->vst_visitors),
            'visits' => (empty($results[0]->vst_visits) ? 0 : $results[0]->vst_visits)
        );
    } else {
        return array('visitors' => 0, 'visits' => 0);
    }
}

// Get total new visitors (all-time unique IPs) - FIXED: No prepare needed for simple query
function ahcfree_get_new_visitors_total()
{
    global $wpdb;

// Count all unique IP addresses that have ever visited - no prepare needed
    $sql = "SELECT COUNT(DISTINCT vtr_ip_address) as new_visitors FROM ahc_recent_visitors";

$result = $wpdb->get_var($sql);
    return $result ? (int)$result : 0;
}

// Get total returning visitors (IPs with multiple visits on different dates)
function ahcfree_get_returning_visitors_total()
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();

// Count IP addresses that have visited on multiple different dates
    $sql = $wpdb->prepare(
        "SELECT COUNT(*) as returning_visitors
        FROM (
            SELECT vtr_ip_address
            FROM ahc_recent_visitors
            GROUP BY vtr_ip_address
            HAVING COUNT(DISTINCT DATE(CONVERT_TZ(CONCAT(vtr_date, ' ', vtr_time), %s, %s))) > 1
        ) as returning_ips",
        AHCFREE_SERVER_CURRENT_TIMEZONE,
        $custom_timezone_offset
    );

$result = $wpdb->get_var($sql);
    return $result ? (int)$result : 0;
}

// Calculate total bounce rate (all-time)
function ahcfree_get_bounce_rate_total()
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();

// Count sessions with only one page view (all-time)
    $single_page_sessions = $wpdb->get_var($wpdb->prepare(
        "SELECT COUNT(*) as single_sessions
        FROM (
            SELECT CONCAT(hit_ip_address, '-', DATE(CONVERT_TZ(CONCAT(hit_date, ' ', hit_time), %s, %s))) as session_id
            FROM ahc_hits
            GROUP BY session_id
            HAVING COUNT(*) = 1
        ) as single_session_data",
        AHCFREE_SERVER_CURRENT_TIMEZONE,
        $custom_timezone_offset
    ));

// Get total sessions (all-time)
    $total_sessions = $wpdb->get_var($wpdb->prepare(
        "SELECT COUNT(DISTINCT CONCAT(hit_ip_address, '-', DATE(CONVERT_TZ(CONCAT(hit_date, ' ', hit_time), %s, %s)))) as total_sessions
        FROM ahc_hits",
        AHCFREE_SERVER_CURRENT_TIMEZONE,
        $custom_timezone_offset
    ));

if ($total_sessions > 0) {
        return round(($single_page_sessions / $total_sessions) * 100, 1);
    }

return 0;
}

// Calculate total average session duration (all-time)
function ahcfree_get_avg_session_duration_total()
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();

// Calculate average time between first and last hit per session (all-time)
    $avg_duration = $wpdb->get_var($wpdb->prepare(
        "SELECT AVG(session_duration) as avg_duration
        FROM (
            SELECT 
                CONCAT(hit_ip_address, '-', DATE(CONVERT_TZ(CONCAT(hit_date, ' ', hit_time), %s, %s))) as session_id,
                TIMESTAMPDIFF(SECOND, 
                    MIN(CONVERT_TZ(CONCAT(hit_date, ' ', hit_time), %s, %s)), 
                    MAX(CONVERT_TZ(CONCAT(hit_date, ' ', hit_time), %s, %s))
                ) as session_duration
            FROM ahc_hits
            GROUP BY session_id
            HAVING COUNT(*) > 1
        ) as sessions",
        AHCFREE_SERVER_CURRENT_TIMEZONE,
        $custom_timezone_offset,
        AHCFREE_SERVER_CURRENT_TIMEZONE,
        $custom_timezone_offset,
        AHCFREE_SERVER_CURRENT_TIMEZONE,
        $custom_timezone_offset
    ));

return $avg_duration ? round($avg_duration) : 0;
}

// Helper function to format session duration
function ahcfree_format_duration($seconds)
{
    if ($seconds < 60) {
        return $seconds . 's';
    } elseif ($seconds < 3600) {
        $minutes = floor($seconds / 60);
        $remaining_seconds = $seconds % 60;
        return $minutes . 'm ' . $remaining_seconds . 's';
    } else {
        $hours = floor($seconds / 3600);
        $minutes = floor(($seconds % 3600) / 60);
        return $hours . 'h ' . $minutes . 'm';
    }
}

//--------------------------------------------
/**
 * Return visits in a period from today 
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @return array
 */
function ahcfree_get_visitors_visits_by_date()
{
    global $wpdb;
    $lastDays = AHCFREE_VISITORS_VISITS_LIMIT - 1;
    $response = array();
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());
    $beginning = new DateTime();
    $beginning->setTimezone($custom_timezone);
    $beginning->modify('-' . $lastDays . ' day');

$sql = "SELECT DATE(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "')) as vst_date, vst_visitors, vst_visits 
            FROM ahc_visitors 
            WHERE site_id = " . get_current_blog_id() . " and DATE(CONVERT_TZ(vst_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) >= DATE(CONVERT_TZ(%s, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'))";

$results = $wpdb->get_results($wpdb->prepare($sql, $beginning->format('Y-m-d')), OBJECT);
    if ($results !== false) {
        $response['success'] = true;
        $response['date'] = array();
        for ($i = count($results); $i < $lastDays; $i++) {
            $beginning->modify('+1 day');
            $response['data']['dates'][] = $beginning->format('d/m');
            $response['data']['visitors'][] = 0;
            $response['data']['visits'][] = 0;
        }

foreach ($results as $r) {
            $hitDate = new DateTime($r->vst_date);
            //$hitDate->setTimezone($custom_timezone);
            $response['data']['dates'][] = $hitDate->format('d/m');
            $response['data']['visitors'][] = $r->vst_visitors;
            $response['data']['visits'][] = $r->vst_visits;
        }
    } else {
        $response['success'] = false;
    }
    return $response;
}

function ahcfree_get_visitors_by_date()
{
    global $wpdb;
    $lastDays = AHCFREE_VISITORS_VISITS_LIMIT;
    $response = array();
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());
    $beginning = new DateTime();
    $beginning->setTimezone($custom_timezone);
    $beginning->modify('-' . $lastDays . ' day');

$sql = "SELECT DATE(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "')) as vst_date, vst_visitors 
            FROM ahc_visitors 
            WHERE site_id = " . get_current_blog_id() . " and DATE(CONVERT_TZ(vst_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) >= DATE(CONVERT_TZ(%s, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'))";

$results = $wpdb->get_results($wpdb->prepare($sql, $beginning->format('Y-m-d')), OBJECT);

if ($results !== false) {
        for ($i = count($results); $i < $lastDays; $i++) {
            $beginning->modify('+1 day');
            $xx .= "['" . $beginning->format('Y-m-d') . "', 0], ";
        }
        foreach ($results as $r) {

$hitDate = new DateTime($r->vst_date);
            //$hitDate->setTimezone($custom_timezone);
            $xx .= "['" . $hitDate->format('Y-m-d') . "', " . $r->vst_visitors . "], ";
        }
    }
    return '[' . $xx . ']';
}

function ahcfree_get_visits_by_date()
{
    global $wpdb;
    $lastDays = AHCFREE_VISITORS_VISITS_LIMIT;
    $response = array();
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());
    $beginning = new DateTime();
    $beginning->setTimezone($custom_timezone);
    $beginning->modify('-' . $lastDays . ' day');

$sql = "SELECT DATE(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "')) as vst_date, vst_visits 
            FROM ahc_visitors 
            WHERE site_id = " . get_current_blog_id() . " and DATE(CONVERT_TZ(vst_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) >= DATE(CONVERT_TZ(%s, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'))";

$results = $wpdb->get_results($wpdb->prepare($sql, $beginning->format('Y-m-d')), OBJECT);
    if ($results !== false) {
        for ($i = count($results); $i < $lastDays; $i++) {
            $beginning->modify('+1 day');
            $x .= "['" . $beginning->format('Y-m-d') . "', 0], ";
        }
        foreach ($results as $r) {
            $hitDate = new DateTime($r->vst_date);
            //$hitDate->setTimezone($custom_timezone);
            $x .= "['" . $hitDate->format('Y-m-d') . "', " . $r->vst_visits . "], ";
        }
    }
    return '[' . $x . ']';
}

//--------------------------------------------
/**
 * Return visitors visits that came from search engine in a period from today 
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @return array
 */

function ahcfree_get_serch_visits_by_date()
{
    global $wpdb;

$response = array();
    $sql = "SELECT ase.srh_name, asv.vtsh_date, asv.srh_id, SUM(asv.vtsh_visits) as vtsh_visits FROM `ahc_searching_visits` asv, `ahc_search_engines` ase where asv.site_id = " . get_current_blog_id() . " and asv.srh_id = ase.srh_id GROUP by asv.srh_id order by SUM(asv.vtsh_visits) DESC";

$results = $wpdb->get_results($sql, OBJECT);

if ($results !== false) {
        $response['success'] = true;
        $data = '';
        $c = 0;
        foreach ($results as $r) {
            $data .= "['" . $r->srh_name . "', " . $r->vtsh_visits . "],";
            $c++;
        }
    } else {
        $data = '';
    }
    $data = substr($data, 0, -1);
    return $data;
}

//--------------------------------------------
/**
 * Returns the total visits by search engines
 *
 * @uses wpdb::get_results()
 *
 * @return mixed
 */
function ahcfree_get_total_visits_by_search_engines()
{
    global $wpdb;
    $result = $wpdb->get_results("SELECT SUM(vtsh_visits) AS total FROM ahc_searching_visits where site_id = " . get_current_blog_id(), OBJECT);
    if ($result !== false) {
        return $result[0]->total;
    }
    return false;
}

//--------------------------------------------
/**
 * Return counts visits happened by search engine result in certain day (today|yesterday), certain period(last week, last month, last year) or total
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @param string $period Optional
 * @return mixed
 */
function ahcfree_get_hits_search_engines_referers($period = 'total')
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());
    $date = new DateTime();
    $date->setTimezone($custom_timezone);
    $sql = "SELECT ase.srh_name, asv.vtsh_date, asv.srh_id, SUM(asv.vtsh_visits) as vtsh_visits FROM `ahc_searching_visits` asv, `ahc_search_engines` ase where asv.site_id = " . get_current_blog_id() . " and asv.srh_id = ase.srh_id ";
    $results = false;
    switch ($period) {
        case 'today':
            $sql .= " AND DATE(CONVERT_TZ(asv.vtsh_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) = '" . ahcfree_localtime('Y-m-d') . "'";

$results = $wpdb->get_results($sql, OBJECT);
            break;

case 'yesterday':
            $date->modify('-1 day');
            $sql .= " AND DATE(CONVERT_TZ(asv.vtsh_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) = DATE(CONVERT_TZ(%s, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'))";
            $results = $wpdb->get_results($wpdb->prepare($sql, $date->format('Y-m-d')), OBJECT);
            break;

case 'week':
            $limits = ahcfree_get_week_limits($date->format('Y-m-d'));
            $sql .= " AND DATE(CONVERT_TZ(asv.vtsh_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) >= DATE(CONVERT_TZ(%s, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) AND DATE(CONVERT_TZ(asv.vtsh_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) <= DATE(CONVERT_TZ(%s, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'))";
            $results = $wpdb->get_results($wpdb->prepare($sql, $limits[0], $limits[1]), OBJECT);
            break;

case 'month':
            $sql .= " AND DATE(CONVERT_TZ(asv.vtsh_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) >= DATE(CONVERT_TZ('" . $date->format('Y-m-01') . "', '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) AND DATE(CONVERT_TZ(asv.vtsh_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) <= DATE(CONVERT_TZ('" . $date->format('Y-m-t') . "', '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'))";
            $results = $wpdb->get_results($sql, $limits[0], $limits[1], OBJECT);
            break;

case 'year':
            $sql .= " AND DATE(CONVERT_TZ(asv.vtsh_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) >= DATE(CONVERT_TZ(%s, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) AND DATE(CONVERT_TZ(asv.vtsh_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) <= DATE(CONVERT_TZ(%s, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'))";
            $results = $wpdb->get_results($wpdb->prepare($sql, $date->format('Y-01-01'), $date->format('Y-12-31')), OBJECT);
            break;

case 'alltime':

$sql .= " GROUP by asv.srh_id order by SUM(asv.vtsh_visits) DESC";

$results = $wpdb->get_results($sql, OBJECT);
            break;

default:
    }

$hitsReferers = array();
    if ($results !== false) {
        foreach ($results as $r) {

$hitsReferers[$r->srh_name] = $r->vtsh_visits;
        }
        return $hitsReferers;
    }
    return false;
}

//--------------------------------------------
/**
 * Retrieves all search engines
 *
 * @uses wpdb::get_results()
 *
 * @return mixed
 */
function ahcfree_get_all_search_engines()
{
    global $wpdb;
    $sql = "SELECT `srh_id`, `srh_name`, `srh_icon` FROM `ahc_search_engines`";
    $searchEngines = array();
    $c = 0;
    $results = $wpdb->get_results($sql, OBJECT);
    if ($results !== false) {
        foreach ($results as $re) {
            $searchEngines[$c]['srh_id'] = $re->srh_id;
            $searchEngines[$c]['srh_name'] = $re->srh_name;
            $searchEngines[$c]['srh_icon'] = $re->srh_icon;
            $c++;
        }
        return $searchEngines;
    }
    return false;
}

//--------------------------------------------
/**
 * Retrieves count of visits order by browsers
 *
 * @uses wpdb::get_results()
 *
 * @return array
 */
function ahcfree_get_browsers_hits_counts()
{
    global $wpdb;
    $sql = "SELECT `bsr_id`, `bsr_name`, `bsr_visits` 
			FROM `ahc_browsers` 
			WHERE site_id = " . get_current_blog_id() . " and `bsr_visits` > 0";
    $results = $wpdb->get_results($sql, OBJECT);
    $response = array();
    if ($results !== false) {
        $response['success'] = true;
        $data = '';
        $c = 0;
        foreach ($results as $bsr) {
            $data .= "['" . $bsr->bsr_name . "', " . $bsr->bsr_visits . "],";
            $c++;
        }
    } else {
        $data = '';
    }
    $data = substr($data, 0, -1);
    return $data;
}

//--------------------------------------------
/**
 * Retrieves top referring sites
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @return mixed
 */
function ahcfree_get_top_refering_sites($start = '', $limit = '')
{
    global $wpdb;
    $limitCond = "";
    if ($start != '' && $limit != '') {
        $sql = "SELECT rfr_site_name, rfr_visits 
			FROM `ahc_refering_sites` 
            where site_id = " . get_current_blog_id() . " 
			ORDER BY rfr_visits DESC LIMIT %d, %d ";

$results = $wpdb->get_results($wpdb->prepare($sql, $start, $limit), OBJECT);
    } else {
        $sql = "SELECT rfr_site_name, rfr_visits 
			FROM `ahc_refering_sites` 
            where site_id = " . get_current_blog_id() . " 
			ORDER BY rfr_visits DESC LIMIT 20 ";
        $results = $wpdb->get_results($sql, OBJECT);
    }

if ($results !== false) {
        $arr = array();
        $c = 0;
        foreach ($results as $referer) {
            $arr[$c]['site_name'] = $referer->rfr_site_name;
            $arr[$c]['total_hits'] = $referer->rfr_visits;
            $c++;
        }
        return $arr;
    } else {
        return false;
    }
}

//--------------------------------------------
/**
 * Retrieves countries related to visits
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @return mixed
 */
function ahcfree_get_top_countries($limit = 0, $start = '', $pagelimit = '', $all = '', $cnt = true)
{
    global $wpdb;
    if ($limit == 0) {
        $limit = AHCFREE_TOP_COUNTRIES_LIMIT;
    }

if ($cnt == true) {
        $sql = "SELECT count(*) FROM `ahc_countries` WHERE site_id = " . get_current_blog_id() . " and  ctr_visits > 0 ORDER BY ctr_visitors DESC";
        $count = $wpdb->get_var($sql);
        return $count;
    }

$limitCond = "";
    if ($start != '' && $pagelimit != '') {

$limitCond = " limit " . intval($start) . "," . intval($pagelimit);
    }

if ($limit > 0 && $pagelimit == "") {
        $sql = "SELECT ctr_name, ctr_internet_code, ctr_visitors, ctr_visits 
		FROM `ahc_countries` WHERE site_id = " . get_current_blog_id() . " and  ctr_visits > 0 
		ORDER BY ctr_visitors DESC 
		LIMIT %d OFFSET 0";

$results = $wpdb->get_results($wpdb->prepare($sql, $limit), OBJECT);
    } else {
        $sql = "SELECT ctr_name, ctr_internet_code, ctr_visitors, ctr_visits 
				FROM `ahc_countries` WHERE site_id = " . get_current_blog_id() . " and  ctr_visits > 0 
				ORDER BY ctr_visitors DESC $limitCond";
        $results = $wpdb->get_results($sql, OBJECT);
    }

$response = array();
    if ($results !== false) {
        $new = array();
        $response['success'] = true;
        $response['data'] = array();
        $c = 0;
        if ($start == "")
            $start = 0;
        $rank = $start + 1;
        foreach ($results as $ctr) {
            $response['data'][$c]['rank'] = $rank;
            $furl = plugins_url('images/flags/' . strtolower($ctr->ctr_internet_code) . '.png', AHCFREE_PLUGIN_MAIN_FILE);
            $flag = '<img src="' . esc_url($furl) . '" border="0" alt="' . esc_attr($ctr->ctr_name) . '" width="30" height="20" onerror="imgFlagError(this)" />';
            $response['data'][$c]['flag'] = $flag;
            $response['data'][$c]['ctr_name'] = $ctr->ctr_name;
            //$response['data'][$c]['ctr_internet_code'] = $ctr->ctr_internet_code;
            $response['data'][$c]['visitors'] = $ctr->ctr_visitors;
            $response['data'][$c]['visits'] = $ctr->ctr_visits;

if ($all == 1) {
                $new[$c]['rank'] = $rank;
                $new[$c]['ctr_name'] = $ctr->ctr_name;
                $new[$c]['visitors'] = $ctr->ctr_visitors;
                $new[$c]['visits'] = $ctr->ctr_visits;
            }
            $c++;
            $rank++;
        }
    } else {
        $response['success'] = false;
    }
    if ($all == 1) {
        return $new;
    }
    return $response;
}

//--------------------------------------------
/**
 * Retrieves countries related to visits
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @return mixed
 */
function ahcfree_get_vsitors_by_country($all, $cnt = true, $start = '', $limit = '', $fdt = '', $tdt = '')
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $vtr_date = "CONVERT_TZ(concat(vtr_date,' ',vtr_time), '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')";
    $cond = "";
    if (isset($_POST['t_from_dt']) && $_POST['t_from_dt'] != '' && isset($_POST['t_to_dt']) && $_POST['t_to_dt'] != '' && isset($_POST['section']) && $_POST['section'] == "traffic_index_country") {
        $fdt = ahc_free_sanitize_text_or_array_field($_POST['t_from_dt']);
        $tdt = ahc_free_sanitize_text_or_array_field($_POST['t_to_dt']);
    } else if (isset($_POST['t_from_dt']) && $_POST['t_from_dt'] != '' && isset($_POST['section']) && $_POST['section'] == "traffic_index_country") {
        $fdt = ahc_free_sanitize_text_or_array_field($_POST['t_from_dt']);
        $fromdt = ahcfree_getFormattedDate($fdt, 'yymmdd');
        $cond = " and vtr_date ='$fromdt'";
    }

if ($fdt != '' && $tdt != '') {
        $fromdt = ahcfree_getFormattedDate($fdt, 'yymmdd');
        $todt = ahcfree_getFormattedDate($tdt, 'yymmdd');
        $cond = "and (DATE($vtr_date) between '" . $fromdt . "' and '$todt')";
        //$cond =" and (vtr_date between '$fromdt' and '$todt')";		
    } else if ($fdt != '') {
        $fromdt = ahcfree_getFormattedDate($fdt, 'yymmdd');
        $cond = "and DATE($vtr_date) = '" . $fromdt . "'";
        //$cond =" and vtr_date ='$fromdt'";
    } else {
        $cond = "and DATE(CONVERT_TZ(concat(vtr_date,' ',vtr_time),'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "')) = '" . ahcfree_localtime('Y-m-d') . "'";
    }

if ($cnt == true) {
        /*$sql = "select tot.ctr_name, tot.ctr_internet_code, tot.total from (SELECT c.ctr_name, c.ctr_internet_code, count(1) as total FROM ahc_recent_visitors v, ahc_countries c  where v.ctr_id = c.ctr_id  $cond group by ctr_name) as tot order by tot.total desc";	
		$results = $wpdb->get_results($sql, OBJECT);*/
        $sql = $wpdb->prepare("select count(*) as cnt from (SELECT c.ctr_name, c.ctr_internet_code, count(1) as total FROM ahc_recent_visitors v, ahc_countries c  where v.site_id = " . get_current_blog_id() . " and  v.ctr_id = c.ctr_id %s group by ctr_name ) as tot order by tot.total desc",  $cond);

return $wpdb->get_var($sql);
    }

$limitCond = "";
    if ($start != '' && $limit != '') {
        $limitCond = " limit " . intval($start) . "," . intval($limit);
    }
    if ($all == 1) {
        $limitCond = "";
    }

$sql = $wpdb->prepare("select tot.ctr_name, tot.ctr_internet_code, tot.total from (SELECT c.ctr_name, c.ctr_internet_code, count(1) as total FROM ahc_recent_visitors v, ahc_countries c  where v.site_id = " . get_current_blog_id() . " and  v.ctr_id = c.ctr_id  %s group by ctr_name ) as tot order by tot.total desc %s", $cond, $limitCond);
    $results = $wpdb->get_results($sql, OBJECT);
    //echo $sql;
    if ($results !== false) {
        $arr = array();
        $new = array();
        $c = 0;
        if ($start == "")
            $start = 0;
        $no = $start + 1;
        $sum = 0;
        foreach ($results as $ctr) {

/*if ($ctr->total > 1) {*/
            $imgurl = plugins_url('images/flags/' . strtolower($ctr->ctr_internet_code) . '.png', AHCFREE_PLUGIN_MAIN_FILE);
            $arr[$c]['no'] = $no;
            $arr[$c]['country'] = '<img src="' . $imgurl . '" border="0" alt="' . $ctr->ctr_name . '" width="30" height="20" onerror="imgFlagError(this)" />';
            $arr[$c]['ctr_name'] = $ctr->ctr_name;
            $arr[$c]['ctr_internet_code'] = $ctr->ctr_internet_code;
            $arr[$c]['total'] = $ctr->total;

if ($all == 1) {
                $new[$c]['no'] = $no;
                $new[$c]['ctr_name'] = $ctr->ctr_name;
                $new[$c]['total'] = $ctr->total;
            }

$c++;
            $no++;

/*} else {
				
                $sum += 1;
            }*/
        }

if ($sum > 0) {
            $k = count($arr);
            $arr[$k]['no'] = $no;
            $imgurl = plugins_url('images/flags/xx.png', AHCFREE_PLUGIN_MAIN_FILE);
            $arr[$k]['country'] = '<img src="' . esc_url($imgurl) . '" border="0" alt="' . esc_url($ctr->ctr_name) . '" width="30" height="20" onerror="imgFlagError(this)" />';
            $arr[$k]['ctr_name'] = 'others';
            $arr[$k]['ctr_internet_code'] = 'XX';
            $arr[$k]['total'] = $sum;

if ($all == 1) {
                $new[$k]['no'] = $no;
                $new[$k]['ctr_name'] = 'others';
                $new[$k]['total'] = $sum;
            }
        }
        if ($all == 1) {
            return $new;
        }

return $arr;
    } else {
        return false;
    }
}

//--------------------------------------------
/**
 * RHash IP
 *
 */

function ahcfree_haship($ip)
{
    if ($ip === '' || $ip === null) {
        return '';
    }

// IPv6: mask the trailing groups for privacy.
    if (strpos($ip, ':') !== false) {
        $groups = explode(':', $ip);
        if (count($groups) > 3) {
            $groups = array_slice($groups, 0, 3);
            return implode(':', $groups) . ':***';
        }
        return $ip;
    }

// IPv4: mask the last octet.
    $parts = explode('.', $ip);
    if (count($parts) === 4) {
        return $parts[0] . "." . $parts[1] . "." . $parts[2] . ".***";
    }

return $ip;
}
//--------------------------------------------
/**
 * Retrieves recent visitors
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @return mixed
 */

function ahcfree_get_recent_visitors($all, $cnt = true, $start = '', $limit = '', $fdt = '', $tdt = '', $ip = '')
{
    global $wpdb, $_SERVER;
    $cond = "";
    $cond1 = "";
    $ahcfree_save_ips = get_option('ahcfree_save_ips_opn');

if (isset($_POST['r_from_dt']) && $_POST['r_from_dt'] != '' && isset($_POST['r_to_dt']) && $_POST['r_to_dt'] != '' && isset($_POST['section']) && $_POST['section'] == 'recent_visitor_by_ip') {
        $fdt = ahc_free_sanitize_text_or_array_field($_POST['r_from_dt']);
        $tdt = ahc_free_sanitize_text_or_array_field($_POST['r_to_dt']);
    } else if (isset($_POST['r_from_dt']) && $_POST['r_from_dt'] != '') {
        $fdt = ahc_free_sanitize_text_or_array_field($_POST['r_from_dt']);
    }
    if (isset($_POST['ip_addr']) && $_POST['ip_addr'] != '' && isset($_POST['section']) && $_POST['section'] == 'recent_visitor_by_ip') {
        $ip = ahc_free_sanitize_text_or_array_field($_POST['ip_addr']);
    }

if ($ip != '') {
        $cond .= " and vtr_ip_address='" . $ip . "'";
        $cond1 .= " and vtr_ip_address='" . $ip . "'";
    }

if ($fdt != '' && $tdt != '') {
        $fromdt = ahcfree_getFormattedDate($fdt, 'yymmdd');
        $todt = ahcfree_getFormattedDate($tdt, 'yymmdd');
        $cond .= " having (dt between '$fromdt' and '$todt')";
        $cond1 .= " and (vtr_date between '$fromdt' and '$todt')";
    } else if ($fdt != '' && $tdt = '') {
        $fromdt = ahcfree_getFormattedDate($fdt, 'yymmdd');
        $cond .= " and dt ='$fromdt'";
        $cond1 .= " and dt ='$fromdt'";
    }

$custom_timezone_offset = ahcfree_get_current_timezone_offset();
    if ($cnt == true) {
        $sql_query = "SELECT count(*) from (Select DATE_FORMAT(CONVERT_TZ(CONCAT_WS(' ',v.vtr_date,v.vtr_time),'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "'), '%Y-%m-%d') as dt FROM `ahc_recent_visitors` AS v LEFT JOIN `ahc_countries` AS c ON v.ctr_id = c.ctr_id LEFT JOIN `ahc_browsers` AS b ON v.bsr_id = b.bsr_id WHERE v.site_id = " . get_current_blog_id() . "  and v.vtr_ip_address NOT LIKE 'UNKNOWN%%' $cond  ORDER BY v.vtr_id DESC) as res";
        $count = $wpdb->get_var($sql_query);
        return $count;
    }

$limitCond = "";
    if ($start != '' && $limit != '') {
        $limitCond = " LIMIT " . intval($start) . ", " . intval($limit);
    }

if ($all == 1) {
        $limitCond = "";
    }

$sql_query = "SELECT v.vtr_id, v.vtr_ip_address, v.vtr_referer, DATE_FORMAT(CONVERT_TZ(CONCAT_WS(' ',v.vtr_date,v.vtr_time),'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "'), '%Y-%m-%d') as dt ,DATE_FORMAT(CONVERT_TZ(CONCAT_WS(' ',v.vtr_date,v.vtr_time),'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "'), '%Y-%m-%d') as vtr_date, DATE_FORMAT(CONVERT_TZ(CONCAT_WS(' ',v.vtr_date,v.vtr_time),'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "'), '%H:%i:%s') as vtr_time, v.ahc_city, v.ahc_region,
		c.ctr_name, c.ctr_internet_code, b.bsr_name, b.bsr_icon 
		FROM `ahc_recent_visitors` AS v 
		LEFT JOIN `ahc_countries` AS c ON v.ctr_id = c.ctr_id 
		LEFT JOIN `ahc_browsers` AS b ON v.bsr_id = b.bsr_id 
		WHERE v.site_id = " . get_current_blog_id() . " and v.vtr_ip_address NOT LIKE 'UNKNOWN%%' $cond  
		ORDER BY v.vtr_id DESC $limitCond";

$results = $wpdb->get_results($sql_query);

if ($results !== false) {
        $arr = array();
        $new = array();
        $c = 0;
        if (is_array($results)) {
            foreach ($results as $hit) {
                if (true) {
                    $visitDate = new DateTime($hit->vtr_date . ' ' . $hit->vtr_time);

$arr[$c]['hit_id'] = $hit->vtr_id;
                    $hit_referer = (parse_url($hit->vtr_referer, PHP_URL_HOST) == $_SERVER['SERVER_NAME']) ? '' : rawurldecode($hit->vtr_referer);
                    $hitip = (!empty($hit->hit_referer) ? '<a href="' . esc_url($hit_referer) . '" target="_blank"><img src="' . esc_url(plugins_url('images/openW.jpg', AHCFREE_PLUGIN_MAIN_FILE)) . '" title="' . esc_attr(ahc_view_referer) . '"></a>' : '');
                    $raw_ip = (get_option('ahcfree_ahcfree_haships') != '1') ? $hit->vtr_ip_address : ahcfree_haship($hit->vtr_ip_address);
                    $ip_cell = '<span class="ahcfree-ip-cell" title="' . esc_attr($raw_ip) . '" style="display:inline-block;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:middle;">' . esc_html($raw_ip) . '</span>';
                    $arr[$c]['hit_ip_address'] = $ip_cell . "&nbsp;" . $hitip;
                    $img = "";
                    if ($hit->ctr_internet_code != '') {
                        $imgurl = plugins_url('images/flags/' . strtolower($hit->ctr_internet_code) . '.png', AHCFREE_PLUGIN_MAIN_FILE);
                        $img = "<img src='" . esc_url($imgurl) . "' border='0' width='22' height='18' title='" . esc_attr($hit->ctr_name) . "' onerror='imgFlagError(this)' />&nbsp;";
                    }

// $bimgurl = plugins_url('images/browsers/' . $hit->bsr_icon, AHCFREE_PLUGIN_MAIN_FILE);
                    // $bimg = '<img src="'.$bimgurl.'" border="0" width="20" height="20" title="'.$hit->bsr_name.'" />&nbsp;';
                    $arr[$c]['hit_date'] = $hit->vtr_date;
                    $arr[$c]['hit_time'] = $hit->vtr_time;

$arr[$c]['ctr_internet_code'] = $hit->ctr_internet_code;
                    $arr[$c]['bsr_name'] =  $hit->bsr_name;
                    $arr[$c]['bsr_icon'] = $hit->bsr_icon;

if (strpos($hit->ahc_region, '}')) {
                        $arr[$c]['ahc_region'] = "-";
                    } else {
                        $arr[$c]['ahc_region'] = $hit->ahc_region;
                    }

if (strpos($hit->ahc_city, 'charset')) {
                        $arr[$c]['ahc_city'] = '-';
                    } else {
                        $arr[$c]['ahc_city'] =  $hit->ahc_city;
                    }

$arr[$c]['ctr_name'] = $img . $hit->ctr_name;
                    $arr[$c]['ctr_name'] .= (!empty($hit->ahc_city)) ? ', ' . $hit->ahc_city : '';
                    $arr[$c]['ctr_name'] .= (!empty($hit->ahc_region)) ? ', ' . $hit->ahc_region : '';

$arr[$c]['time'] = $visitDate->format('d M Y @ h:i a');

if ($all == 1) {
                        $new[$c]['hit_ip_address'] = $hit->vtr_ip_address;
                        $new[$c]['ctr_name'] = $hit->ctr_name . ", " . $hit->ahc_city . ", " . $hit->ahc_region;
                        $new[$c]['time'] = $visitDate->format('d M Y @ h:i a');
                    }

$c++;
                }
            }
        }
        if ($all == 1)
            return $new;
        return $arr;
    } else {
        return false;
    }
}

//--------------------------------------------
/**
 * Retrieves latest of key words used in search
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @return mixed
 */
function ahcfree_get_latest_search_key_words_used($all, $cnt = true, $start = '', $limit = '', $fdt = '', $tdt = '')
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $cond = "";
    $cond1 = "";

if (isset($_POST['from_dt']) && $_POST['from_dt'] != '' && isset($_POST['to_dt']) && $_POST['to_dt'] != '' && isset($_POST['section']) && $_POST['section'] == "lastest_search") {
        $fdt = ahc_free_sanitize_text_or_array_field($_POST['from_dt']);
        $tdt = ahc_free_sanitize_text_or_array_field($_POST['to_dt']);
    }

if ($fdt != '' && $tdt != '') {
        $fromdt = ahcfree_getFormattedDate($fdt, 'yymmdd');
        $todt = ahcfree_getFormattedDate($tdt, 'yymmdd');
        //$cond =" and (k.kwd_date between '$fromdt' and '$todt')";	
        $cond = " having (dt between '$fromdt' and '$todt')";
        $cond1 = " and (kwd_date between '$fromdt' and '$todt')";
    }

if ($cnt == true) {
        $sql = "SELECT count(*) FROM `ahc_keywords` AS k LEFT JOIN `ahc_countries` AS c ON k.ctr_id = c.ctr_id JOIN `ahc_browsers` AS b ON k.bsr_id = b.bsr_id JOIN `ahc_search_engines` AS s on k.srh_id = s.srh_id WHERE k.site_id = " . get_current_blog_id() . " and k.kwd_ip_address != 'UNKNOWN' and k.kwd_keywords !='amazon' and c.ctr_id IS NOT NULL $cond1 ORDER BY k.kwd_date DESC, k.kwd_time DESC ";
        $count = $wpdb->get_var($sql);
        return $count;
    }

$limitCond = "";
    if ($start != '' && $limit != '') {
        $limitCond = " LIMIT " . intval($start) . ", " . intval($limit);
    }

if ($all == 1) {
        $limitCond = "";
    }

$sql = "SELECT  k.kwd_date as dt,k.kwd_ip_address, k.kwd_referer, k.kwd_keywords, CONVERT_TZ(CONCAT_WS(' ',k.kwd_date,k.kwd_time),'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "') as kwd_date, CONVERT_TZ(k.kwd_time,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "') as kwd_time, k.ctr_id, 
		c.ctr_name, c.ctr_internet_code, b.bsr_name, b.bsr_icon, s.srh_name, s.srh_icon 
		FROM `ahc_keywords` AS k 
		LEFT JOIN `ahc_countries` AS c ON k.ctr_id = c.ctr_id 
		JOIN `ahc_browsers` AS b ON k.bsr_id = b.bsr_id 
		JOIN `ahc_search_engines` AS s on k.srh_id = s.srh_id 
		WHERE k.site_id = " . get_current_blog_id() . " and k.kwd_ip_address != 'UNKNOWN' and k.kwd_keywords !='amazon' and c.ctr_id IS NOT NULL $cond
		ORDER BY k.kwd_date DESC, k.kwd_time DESC $limitCond";
    $results = $wpdb->get_results($sql, OBJECT);

if ($results !== false) {
        $arr = array();
        $new = array();
        $c = 0;
        $custom_timezone_offset = ahcfree_get_current_timezone_offset();
        $custom_timezone_string = ahcfree_get_timezone_string();
        $ahcfree_save_ips = get_option('ahcfree_save_ips_opn');
        if ($custom_timezone_string) {
            $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());
        }
        foreach ($results as $re) {

$arr[$c]['hit_referer'] = rawurldecode($re->kwd_referer);
            $arr[$c]['hit_search_words'] = $re->kwd_keywords;
            $arr[$c]['hit_date'] = $re->kwd_date;
            $arr[$c]['hit_time'] = $re->kwd_time;
            $arr[$c]['hit_ip_address'] = $re->kwd_ip_address;
            $arr[$c]['ctr_name'] = $re->ctr_name;
            $arr[$c]['ctr_internet_code'] = $re->ctr_internet_code;
            $arr[$c]['bsr_name'] = $re->bsr_name;
            $arr[$c]['bsr_icon'] = $re->bsr_icon;
            $arr[$c]['srh_name'] = $re->srh_name;
            $arr[$c]['srh_icon'] = $re->srh_icon;

$img = '<span>';
            if ($re->ctr_internet_code != '') {
                $imgurl = plugins_url('images/flags/' . strtolower($re->ctr_internet_code) . '.png', AHCFREE_PLUGIN_MAIN_FILE);
                $img .= '<img src="' . esc_url($imgurl) . '" border="0" width="22" height="18" title="' . esc_attr($re->ctr_name) . '" onerror="imgFlagError(this)" />';
            }
            //  $img .= '&nbsp;' . esc_html($re->ctr_name) . '</span>';
            /*$eurl=plugins_url('images/search_engines/' . $re->srh_icon, AHCFREE_PLUGIN_MAIN_FILE);
			$img.='<span><img src="'.$eurl.'" border="0" width="22" height="22" title="'.$re->srh_name.'" /></span>';
			
			$burl=plugins_url('images/browsers/' . $re->bsr_icon, AHCFREE_PLUGIN_MAIN_FILE);
			$img.='<span><img src="'.$burl.'" border="0" width="20" height="20" title="'.$re->bsr_name.'" /></span>';
			*/
            $arr[$c]['img'] = $img;
            $arr[$c]['csb'] = $re->ctr_name . "/" . $re->srh_name . "/" . $re->bsr_name;

$arr[$c]['keyword'] = '<span class="searchKeyWords"><a href="' . esc_url($re->kwd_referer) . '" target="_blank">' . esc_html($re->kwd_keywords) . '</a></span>';

$visitDate = new DateTime($re->kwd_date);
            $visitDate->setTimezone($custom_timezone);
            //$arr[$c]['dt'] = '<span class="visitDateTime">'.$visitDate->format('d/m/Y').'</span>';
            $arr[$c]['dt'] = $visitDate->format('d/m/Y');

if ($all == 1) {
                $new[$c]['csb'] = $re->ctr_name . "/" . $re->srh_name . "/" . $re->bsr_name;
                $new[$c]['keyword'] = $re->kwd_keywords;
                $new[$c]['dt'] = $visitDate->format('d/m/Y');
            }
            $c++;
        }
        if ($all == 1)
            return $new;
        return $arr;
    } else {
        return false;
    }
}

//--------------------------------------------
/**
 * Is in login page
 *
 * @return boolean
 */
function ahcfree_is_login_page()
{
    global $GLOBALS;
    // global $GlobalsAHC;

// return in_array($GlobalsAHC['pagenow'], array('wp-login.php', 'wp-register.php'));

if ($GLOBALS['pagenow'] === 'wp-login.php' || $GLOBALS['pagenow'] === 'wp-register.php') {
        return true;
    } else {
        return false;
    }
}

//--------------------------------------------
/**
 * Retrieves today visitors data, for google map
 *
 * @uses wpdb::get_results()
 *
 * @return array
 */
function ahcfree_get_today_visitors_for_map($map_status = '')
{
    global $wpdb;
    $whr = '';

$custom_timezone_offset = ahcfree_get_current_timezone_offset();

$current_month = ahcfree_localtime("m");
    $current_year = ahcfree_localtime("Y");
    $past_year = ahcfree_localtime("Y") - 1;
    $past_month = date('m', strtotime('last month'));

if ($map_status == 'this_month') {
        $whr = " and month(CONVERT_TZ(concat(vtr_date, ' ', vtr_time),'+00:00','+02:00')) = " . $current_month . " and year(CONVERT_TZ(concat(vtr_date, ' ', vtr_time),'+00:00','+02:00')) =  " . $current_year;
    } else if ($map_status == 'past_month') {
        $whr = " and month(CONVERT_TZ(concat(vtr_date, ' ', vtr_time),'+00:00','+02:00')) = " . $past_month . " and year(CONVERT_TZ(concat(vtr_date, ' ', vtr_time),'+00:00','+02:00')) =  " . $past_year;
    } else {
        $whr = " and DATE(CONVERT_TZ(concat(vtr_date, ' ', vtr_time),'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "')) = '" . ahcfree_localtime("Y-m-d") . "'";
    }

$sql = "select count(vtr_id) as visitors, c.* from `ahc_recent_visitors` recent, `ahc_countries` c where recent.site_id = " . get_current_blog_id() . " and recent.ctr_id = c.ctr_id 
			and c.ctr_latitude IS NOT NULL AND c.ctr_latitude <> 0 AND c.ctr_longitude IS NOT NULL AND c.ctr_longitude <> 0 " . $whr . " GROUP by ctr_id";

$results = $wpdb->get_results($sql, OBJECT);
    $response = array();
    if ($results !== false) {
        $response['success'] = true;
        $response['data'] = array();
        if (is_array($results) && isset($results[0]->visitors) && !empty($results[0]->visitors)) {
            foreach ($results as $r) {
                $response['data'][$r->ctr_id]['visitors'] = $r->visitors;
                $response['data'][$r->ctr_id]['ctr_name'] = $r->ctr_name;
                $response['data'][$r->ctr_id]['ctr_internet_code'] = $r->ctr_internet_code;
                $response['data'][$r->ctr_id]['ctr_latitude'] = $r->ctr_latitude;
                $response['data'][$r->ctr_id]['ctr_longitude'] = $r->ctr_longitude;
            }
        }
    } else {
        $response['success'] = false;
    }
    return $response;
}
function ahcfree_get_all_visitors_for_map()
{
    global $wpdb;
    $sql = "SELECT c.`ctr_visitors` as visitors, c.ctr_id, c.ctr_name, c.ctr_internet_code, c.ctr_latitude, c.ctr_longitude from `ahc_countries` c where c.site_id = " . get_current_blog_id() . " and  c.ctr_latitude IS NOT NULL AND c.ctr_latitude <> 0 AND c.ctr_longitude IS NOT NULL AND c.ctr_longitude <> 0 group by `ctr_name` ORDER BY ctr_visitors desc LIMIT 10";

/**
 * Retrieves online visitors data, for google map
 *
 * @uses wpdb::get_results()
 *
 * @return array
 */
function ahcfree_get_online_visitors_for_map()
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $sql = "SELECT hits.visitors, hits.ctr_id, 
			c.ctr_name, c.ctr_internet_code, c.ctr_latitude, c.ctr_longitude FROM (
			SELECT COUNT(v.visitor) AS visitors, v.ctr_id FROM (
			SELECT ctr_id, 1 AS visitor FROM `ahc_hits`
			WHERE site_id = " . get_current_blog_id() . " and ctr_id IS NOT NULL AND hit_ip_address NOT LIKE 'UNKNOWN%' and hit_date = DATE( CONVERT_TZ( '" . ahcfree_localtime("Y-m-d H:i:s") . "' ,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "') ) and TIME( CONVERT_TZ(hit_time,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "') ) between TIME(CONVERT_TZ('" . date("Y-m-d H:i:s") . "','" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "') - INTERVAL 60 SECOND) and TIME( CONVERT_TZ('" . date("Y-m-d H:i:s") . "','" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "') )
			GROUP BY hit_ip_address 
			) AS v 
			GROUP BY ctr_id) AS hits 
			JOIN `ahc_countries` AS c ON hits.ctr_id = c.ctr_id 
			WHERE c.site_id = " . get_current_blog_id() . " and c.ctr_latitude IS NOT NULL AND c.ctr_latitude <> 0 AND c.ctr_longitude IS NOT NULL AND c.ctr_longitude <> 0 ";

//--------------------------------------------
/**
 * Detect if the visitor is search engine bot
 *
 * @uses wpdb::get_results()
 *
 * @return boolean
 */
function ahcfree_is_search_engine_bot()
{
    global $wpdb, $_SERVER;
    $results = $wpdb->get_results("SELECT `bot_name` FROM `ahc_search_engine_crawlers` where site_id = " . get_current_blog_id(), OBJECT);
    foreach ($results as $crawler) {
        if (stripos($_SERVER['HTTP_USER_AGENT'], $crawler->bot_name) !== false) {
            return true;
        }
    }

if (stripos($_SERVER['REQUEST_URI'], 'robots.txt') !== false) {
        return true;
    }

if (stripos($_SERVER['REQUEST_URI'], 'Bot') !== false) {
        return true;
    }

if (stripos($_SERVER['REQUEST_URI'], 'bot') !== false) {
        return true;
    }
    return false;
}

//--------------------------------------------
/**
 * Detect if the visitor is WordPress bot
 *
 * @return boolean
 */
function ahcfree_is_wordpress_bot()
{
    global $_SERVER;
    if (stripos($_SERVER['HTTP_USER_AGENT'], 'WordPress') !== false) {
        return true;
    }
    return false;
}

//--------------------------------------------
/**
 * Detects post id, post title and post type of current page
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @param object $query. this object is passed to the callback function of "parse_query" hooked action
 * @return mixed
 */
function ahcfree_detect_requested_page($query)
{
    global $wpdb;
    $vars = $query->query_vars;
    if (isset($vars['p']) && !empty($vars['p'])) {
        $result = $wpdb->get_results($wpdb->prepare("SELECT post_title FROM " . $wpdb->prefix . "posts WHERE site_id = %d and ID = %d ", get_current_blog_id(), $vars['p']));
        if ($result !== false && $wpdb->num_rows > 0) {
            return array('page_id' => $vars['p'], 'page_title' => $result[0]->post_title, 'post_type' => 'post');
        }
    } else if (isset($vars['name']) && !empty($vars['name'])) {
        $result = $wpdb->get_results($wpdb->prepare("SELECT ID, post_title FROM " . $wpdb->prefix . "posts WHERE site_id = %d and post_name = %s ", get_current_blog_id(), $vars['name']));
        if ($result !== false && $wpdb->num_rows > 0) {
            return array('page_id' => $result[0]->ID, 'page_title' => $result[0]->post_title, 'post_type' => 'post');
        }
    } else if (isset($vars['pagename']) && !empty($vars['pagename'])) {
        $result = $wpdb->get_results($wpdb->prepare("SELECT ID, post_title FROM " . $wpdb->prefix . "posts WHERE site_id = %d and post_name = %s AND post_type = %s", get_current_blog_id(), ahcfree_get_subpage_name($vars['pagename']), 'page'));
        if ($result !== false && $wpdb->num_rows > 0) {
            return array('page_id' => $result[0]->ID, 'page_title' => $result[0]->post_title, 'post_type' => 'page');
        }
    } else if (isset($vars['page_id']) && !empty($vars['page_id'])) {
        $result = $wpdb->get_results($wpdb->prepare("SELECT post_title FROM " . $wpdb->prefix . "posts WHERE site_id = %d and ID = %s AND post_type = %s", get_current_blog_id(), $vars['page_id'], 'page'));
        if ($result !== false && $wpdb->num_rows > 0) {
            return array('page_id' => $page_id, 'page_title' => $result[0]->post_title, 'post_type' => 'page');
        }
    } else {
        return array('page_id' => 'HOMEPAGE', 'page_title' => NULL, 'post_type' => NULL);
    }
}

function ahcfree_get_subpage_name($page_name)
{
    $sub_name = strrchr($page_name, '/');
    if (!$sub_name) {
        return $page_name;
    }
    return substr($sub_name, 1);
}
//--------------------------------------------
/**
 * Initiates tracking process
 *
 * @param object $query. this object is passed to this callback function of "parse_request" hooked action
 * @return void
 */
/*function ahcfree_track_visitor($query) {

$exclude_ips = AHCFREE_AHCFREE_EXCLUDE_IPS;
    if ($exclude_ips == '' or $exclude_ips == '') {
        $exclude_ips = array();
    }
    if (AHCFREE_AHCFREE_EXCLUDE_IPS != NULL && AHCFREE_AHCFREE_EXCLUDE_IPS != '') {
        $exclude_ips = explode("\n", $exclude_ips);
    }

if (ahcfree_should_track_visitor() && !ahcfree_is_login_page() && !ahcfree_is_search_engine_bot() && !ahcfree_is_wordpress_bot()) {
        if (!in_array(ahcfree_get_client_ip_address(), $exclude_ips)) {

$page = ahcfree_detect_requested_page($query);
            if (is_array($page)) {
                GlobalsAHC::$page_id = $page['page_id'];
                GlobalsAHC::$page_title = $page['page_title'];
                GlobalsAHC::$post_type = $page['post_type'];
            } else {
                return;
            }
            $hitsCounter = new WPHitsCounter(GlobalsAHC::$page_id, GlobalsAHC::$page_title, GlobalsAHC::$post_type);
            $hitsCounter->traceVisitorHit();
        }
    }
}*/

function ahcfree_track_visitor()
{
    $exclude_ips_arr = array();
    $exclude_ips = AHCFREE_EXCLUDE_IPS;
    if ($exclude_ips == '' or empty($exclude_ips)) {
        $exclude_ips = array();
    } else {

$exclude_ips = str_ireplace("\n", " ", $exclude_ips);
        $exclude_ips = str_ireplace(",", " ", $exclude_ips);

$exclude_ips = explode(" ", $exclude_ips);
    }

$client_ip_address = trim(ahcfree_get_client_ip_address());
    foreach ($exclude_ips as $k => $v) {

if ($v != '') {

$exclude_ips_arr[] = trim($v);
        }
    }

if (!ahcfree_is_login_page() && !ahcfree_is_search_engine_bot() && !ahcfree_is_wordpress_bot()) {

if (!in_array($client_ip_address, $exclude_ips_arr)) {

$page_id = intval($_POST['page_id']);
           // $page_title = ahc_free_sanitize_text_or_array_field($_POST['page_title']);
           
            $page_title_raw = isset($_POST['page_title']) ? wp_unslash($_POST['page_title']) : '';
			$page_title_decoded = html_entity_decode($page_title_raw, ENT_QUOTES | ENT_HTML5, 'UTF-8');
			$page_title = sanitize_text_field(wp_strip_all_tags($page_title_decoded, true));
            $post_type = ahc_free_sanitize_text_or_array_field($_POST['post_type']);
            $_SERVER['HTTP_REFERER'] = ahc_free_sanitize_text_or_array_field($_POST['referer']);
            $_SERVER['HTTP_USER_AGENT'] = ahc_free_sanitize_text_or_array_field($_POST['useragent']);
            $_SERVER['SERVER_NAME'] = ahc_free_sanitize_text_or_array_field($_POST['servername']);
            $_SERVER['HTTP_HOST'] = ahc_free_sanitize_text_or_array_field($_POST['hostname']);
            $_SERVER['REQUEST_URI'] = ahc_free_sanitize_text_or_array_field($_POST['request_uri']);

$hitsCounter = new WPHitsCounter($page_id, $page_title, $post_type);
            $hitsCounter->traceVisitorHit();
        }
    }

die;
}

//--------------------------------------------
/**
 * Ceil for decimal numbers with precision
 *
 * @param float $number
 * @param integer $precision
 * @param string $separator
 * @return float
 */
function ahcfree_ceil_dec($number, $precision, $separator)
{
    if (strpos($number, '.') !== false) {
        $numberpart = explode($separator, $number);
        $numberpart[1] = substr_replace($numberpart[1], $separator, $precision, 0);
        if ($numberpart[0] >= 0) {
            $numberpart[1] = ceil($numberpart[1]);
        } else {
            $numberpart[1] = floor($numberpart[1]);
        }

$ceil_number = array($numberpart[0], $numberpart[1]);
        return implode($separator, $ceil_number);
    }
    return $number;
}

//--------------------------------------------
/**
 * Retrieve sum visits by post title
 *
 * @uses wpdb::prepare()
 * @uses wpdb::get_results()
 *
 * @return mixed
 */
function ahcfree_get_traffic_by_title($all, $cnt = false, $start = '0', $limit = '10', $search = '')
{

global $wpdb;
    $sql2 = '';
    $sql1 = "SELECT SUM(hits) AS sm FROM (
			SELECT SUM(til_hits) AS hits 
			FROM ahc_title_traffic 
			where site_id =" . get_current_blog_id() . "
			GROUP BY til_page_id
			) myTable";

$cond = "";
    $search_like = '';
    if ($search != '') {
        $search_like = '%' . $wpdb->esc_like($search) . '%';
        $cond = " and til_page_title like %s";
    }

if ($cnt == true) {
        $sql2 = "SELECT til_page_id, til_page_title, til_hits 
			FROM ahc_title_traffic where site_id =" . get_current_blog_id() . " $cond 
			GROUP BY til_page_id , til_page_title, til_hits
			ORDER BY til_hits DESC limit %d, %d";

if ($search_like !== '') {
            $count = $wpdb->get_results($wpdb->prepare($sql2, $search_like, $start, $limit));
        } else {
            $count = $wpdb->get_results($wpdb->prepare($sql2, $start, $limit));
        }
        return   $wpdb->num_rows;
    }

$limitCond = "";
    if ($start != '' && $limit != '') {
        $sql2 = "SELECT til_page_id, til_page_title, til_hits 
			FROM ahc_title_traffic where site_id =" . get_current_blog_id() . " $cond 
			GROUP BY til_page_id , til_page_title, til_hits
			ORDER BY til_hits DESC limit %d, %d";
    }

$result1 = $wpdb->get_results($sql1);
    if ($result1 !== false && $sql2 != '') {
        $total = $result1[0]->sm;

if ($search_like !== '') {
            $result2 = $wpdb->get_results($wpdb->prepare($sql2, $search_like, $start, $limit));
        } else {
            $result2 = $wpdb->get_results($wpdb->prepare($sql2, $start, $limit));
        }
        if ($result2 !== false) {
            $arr = array();
            if ($wpdb->num_rows > 0) {
                $c = 0;
                if ($start == "")
                    $start = 0;
                $no = $start;
                foreach ($result2 as $r) {
                    $ans = 0;
                    $arr[$c]['rank'] = $no + 1;
                    //$arr[$c]['til_page_id'] = $r->til_page_id;
                    if ($all == 1)
                        $arr[$c]['til_page_title'] = $r->til_page_title;
                    else
                        $arr[$c]['til_page_title'] = "<a href='" . get_permalink($r->til_page_id) . "' target='_blank'>" . $r->til_page_title . "</a>";
                    $arr[$c]['til_hits'] = $r->til_hits;
                    $ans = ($total > 0) ? ahcfree_ceil_dec((($r->til_hits / $total) * 100), 2, ".")  : 0;
                    $arr[$c]['percent'] = ahcfree_NumFormat($ans) . '%';
                    $c++;
                    $no++;
                }
            }
            return $arr;
        }
    }
    return false;
}

//--------------------------------------------
/**
 * Retrieves sum of visits order by time
 *
 * @uses wpdb::get_results()
 *
 * @return mixed
 */
function ahcfree_get_time_visits($all, $start = '', $limit = '', $fdt = '', $tdt = '')
{
    global $wpdb;
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $vst_date = "CONVERT_TZ(vst_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')";

$cond = "";

if (isset($_POST['vfrom_dt']) && $_POST['vfrom_dt'] != '' && isset($_POST['vto_dt']) && $_POST['vto_dt'] != '' && isset($_POST['section']) && $_POST['section'] == "visit_time") {
        $fdt = ahc_free_sanitize_text_or_array_field($_POST['vfrom_dt']);
        $tdt = ahc_free_sanitize_text_or_array_field($_POST['vto_dt']);
    } else if (isset($_POST['vfrom_dt']) && $_POST['vfrom_dt'] != '' && isset($_POST['section']) && $_POST['section'] == "visit_time") {
        $fdt = ahc_free_sanitize_text_or_array_field($_POST['vfrom_dt']);
    }
    if ($fdt != '' && $tdt != '') {
        $fromdt = ahcfree_getFormattedDate($fdt, 'yymmdd');
        $todt = ahcfree_getFormattedDate($tdt, 'yymmdd');
        $cond = "(DATE($vst_date) between '" . $fromdt . "' and '$todt')";
        $groupby = " hour";
    } else if ($fdt != '') {
        $fromdt = ahcfree_getFormattedDate($fdt, 'yymmdd');
        $cond = "DATE($vst_date) = '" . $fromdt . "'";
        $groupby = " hour($vst_date)";
    } else {
        $cond = "DATE($vst_date) = '" . ahcfree_localtime('Y-m-d') . "'";
        $groupby = " hour($vst_date)";
    }

$sql1 = "SELECT SUM(vtm_visitors) AS sm FROM ahc_visits_time WHERE site_id = " . get_current_blog_id() . " and DATE($vst_date) = '" . ahcfree_localtime('Y-m-d') . "'";

$sql2 = "SELECT date(vst_date) as dt,hour($vst_date) AS hour, SUM(vst_visitors) AS vst_visitors, SUM(vst_visits) AS vst_visits FROM `ahc_visitors` 
WHERE site_id = " . get_current_blog_id() . " and $cond GROUP BY $groupby";

//echo $sql2;
    //$result1 = $wpdb->get_results($sql1);
    //if ($result1 !== false) {
    $total = 0;
    $result2 = $wpdb->get_results($sql2);
    //asort($result2);
    $utc_data = array();

if ($result2 !== false) {
        $arr = array();
        $new = array();
        $hourDetails = array();
        foreach ($result2 as $r) {

if (isset($hourDetails[$r->hour])) {
                $hourDetails[$r->hour]['visitor']    += $r->vst_visitors;
                $hourDetails[$r->hour]['visits']    += $r->vst_visits;
                $hourDetails[$r->hour]['counter'] += 1;
            } else {
                $hourDetails[$r->hour] = array(
                    'visitor'     => $r->vst_visitors,
                    'visits'    => $r->vst_visits,
                    'counter' => 1
                );
            }
            //$dtArr[]= $hourDetails;
            $total += $r->vst_visitors;
        }

if ($start == '')
            $start = 0;
        if ($limit != '' && $start == 20)
            $end = 24;
        else if ($limit == "")
            $end = 24;
        else
            $end = $limit + $start;

if ($all == 1) {
            $start = 0;
            $end = 24;
        }
        $k = 0;
        $avgtotal = 0;
        for ($i = $start; $i < $end; $i++) {

$vtm_visitors = 0;
            $vtm_visits = 0;
            $totalDt =  count($hourDetails);

if (isset($hourDetails[$i])) {
                $vtm_visitors = $hourDetails[$i]['visitor'] / $hourDetails[$i]['counter'];
                $avgtotal += $vtm_visitors;
                $vtm_visits = $hourDetails[$i]['visits'] / $hourDetails[$i]['counter'];
            }
            if ($i < 10) {
                $timeTo = $timeFrom = '0' . $i;
            } else {
                $timeTo = $timeFrom = $i;
            }
            $arr[$k]['vtm_time_from'] = $timeFrom . ':00';
            $arr[$k]['vtm_time_to'] = $timeTo . ':59';
            // $arr[$k]['percent'] = ($total > 0) ? ahcfree_ceil_dec((($vtm_visitors / $total) * 100), 2, ".") : 0;

$arr[$k]['time'] = $timeFrom . ':00 - ' . $timeTo . ':59';

$arr[$k]['vtm_visitors'] = ceil($vtm_visitors);
            $arr[$k]['vtm_visits'] = ceil($vtm_visits);

if ($all == 1) {
                $new[$k]['time'] = $timeFrom . ':00 - ' . $timeTo . ':59';
                $new[$k]['vtm_visitors'] = ceil($vtm_visitors);
                $new[$k]['vtm_visits'] = ceil($vtm_visits);
            }
            $k++;
        }
        $avgtotal = $total;

$j = 0;
        for ($i = $start; $i < $end; $i++) {
            if (isset($hourDetails[$i])) {
                $vtm_visitors = $hourDetails[$i]['visitor'] / $hourDetails[$i]['counter'];
            } else {
                $vtm_visitors = 0;
            }

$arr[$j]['percent'] = ($avgtotal > 0) ? ahcfree_ceil_dec((($vtm_visitors / $total) * 100), 2, ".") : 0;
            $per = ($avgtotal > 0) ? ahcfree_ceil_dec((($vtm_visitors / $avgtotal) * 100), 2, ".") : 0;

if ($all == 1)
                $new[$j]['percent'] = $per;

if (ceil($per) > 25 && ceil($per) < 50) {
                $cls = 'visitorsGraph2';
            } else if (ceil($per) > 50) {
                $cls = 'visitorsGraph3';
            } else {
                $cls = 'visitorsGraph';
            }

$per_val = ($per > 0) ? '' . ($per) . '%' : '';

$css = (!empty($per)) ? 'style="width: ' . ceil($per) . '%;"' : '';
            $arr[$j]['graph'] = '<div class="visitorsGraphContainer"><div class="' . esc_attr($cls) . '" ' . $css . '>&nbsp;' . $per_val . '</div><div class="cleaner"></div></div>';
            $j++;
            $cls = '';
            $per = 0;
        }
        if ($all == 1)
            return $new;
        return $arr;
    }
    //}
    return false;
}

function ahcfree_advanced_get_link($url, $followRedirects = true)
{
    $ahc_data = wp_remote_get($url);
    return json_decode(wp_remote_retrieve_body($ahc_data));
}

//--------------------------------------------
/**
 * Returns client IP address
 *
 * @return string
 */

function ahc_free_get_simple_ip($ip)
{
    $exploded_ip = explode(":", $ip);
    $size = sizeof($exploded_ip);

if ($size == 1) // ipv4 format
        return $ip;

if ($size == 4) // ipv4 in ipv6 format
    {
        if (empty($exploded_ip[0]) && empty($exploded_ip[1]) && strtoupper($exploded_ip[2]) == "FFFF")
            return $exploded_ip[3];
    }

return $ip; // default ipv6
}

$ipAddress = ahc_free_get_simple_ip($ipAddress);
    $ipAddress = ahc_free_sanitize_text_or_array_field($ipAddress);

$ipAddress = explode(',', $ipAddress);

return $ipAddress[0];
}

//--------------------------------------------
/**
 * To include scripts and styles tags into the head
 *
 * @uses wp_register_style()
 * @uses wp_enqueue_style()
 * @uses wp_register_script()
 * @uses wp_enqueue_script()
 *
 * @return void
 */
function ahcfree_include_scripts()
{
    wp_register_style('ahc_custom_css', plugins_url('css/custom.css', AHCFREE_PLUGIN_MAIN_FILE), '', time());
    wp_enqueue_style('ahc_custom_css');

wp_register_style('ahc_lang_css', plugins_url('css/vtrts_css_stylesheet.css', AHCFREE_PLUGIN_MAIN_FILE), '', '1.4');
    wp_enqueue_style('ahc_lang_css');

wp_register_script('slimselect_js', plugins_url('js/slimselect.min.js', AHCFREE_PLUGIN_MAIN_FILE), null, null, true);
    wp_enqueue_script('slimselect_js');

wp_register_style('slimselect', plugins_url('css/slimselect.min.css', AHCFREE_PLUGIN_MAIN_FILE));
    wp_enqueue_style('slimselect');

wp_register_style('ahc_bootstrap_css', plugins_url('lib/bootstrap/css/bootstrap.min.css', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_style('ahc_bootstrap_css');

wp_enqueue_script('jquery');

wp_register_script('ahc_bootstrap_js', plugins_url('lib/bootstrap/js/bootstrap.min.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_bootstrap_js');

wp_register_script('ahc_lang_js', plugins_url('lang/js/' . GlobalsAHC::$lang . '_lang.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_lang_js');

/* Pagination and export */
    wp_register_script('ahc_datatable_js', plugins_url('js/jquery.dataTables.min.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_datatable_js');
    wp_register_script('ahc_tableexport_js', plugins_url('js/dataTables.buttons.min.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_tableexport_js');
    wp_register_script('ahc_jzip_js', plugins_url('js/jszip.min.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_jzip_js');
    wp_register_script('ahc_tableexportbutton_js', plugins_url('js/buttons.html5.min.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_tableexportbutton_js');

wp_register_script('ahc_xlscore_js', plugins_url('js/xlsx.core.min.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_xlscore_js');
    wp_register_script('ahc_filesave_js', plugins_url('js/FileSaver.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_filesave_js');
    wp_register_script('ahc_xls_js', plugins_url('js/jhxlsx.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_xls_js');

wp_register_style('jquery_date_css', plugins_url('css/datepicker.css', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_style('jquery_date_css');

wp_enqueue_script('jquery-ui-datepicker', array('jquery'));

/* Leaflet map (free visitor map) */
    wp_register_style('ahc_leaflet_css', plugins_url('css/leaflet.css', AHCFREE_PLUGIN_MAIN_FILE), '', '1.4.0');
    wp_enqueue_style('ahc_leaflet_css');
    wp_register_script('ahc_leaflet_js', plugins_url('js/leaflet.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.4.0', true);
    wp_enqueue_script('ahc_leaflet_js');

wp_register_script('ahc_main_js', plugins_url('js/ahcfree_js_scripts.js', AHCFREE_PLUGIN_MAIN_FILE), '', '3.0');
    wp_enqueue_script('ahc_main_js');

wp_localize_script('ahc_main_js', 'ahc_ajax', array(
        'ajax_url' => admin_url('admin-ajax.php'),
        'plugin_url' => plugin_dir_url(__FILE__)  // Add this line
    ));
    wp_enqueue_script('sweetalert', plugins_url('js/sweetalert.min.js', AHCFREE_PLUGIN_MAIN_FILE));
    wp_enqueue_style('sweetalert', plugins_url('css/sweetalerts.css', AHCFREE_PLUGIN_MAIN_FILE));
}

function ahcfree_settings_scripts()
{

wp_register_style('ahc_bootstrap_css', plugins_url('lib/bootstrap/css/bootstrap.min.css', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_style('ahc_bootstrap_css');

wp_enqueue_script('jquery');

wp_register_script('ahc_bootstrap_js', plugins_url('lib/bootstrap/js/bootstrap.min.js', AHCFREE_PLUGIN_MAIN_FILE), '', '1.21');
    wp_enqueue_script('ahc_bootstrap_js');

wp_register_script('slimselect_js', plugins_url('js/slimselect.min.js', AHCFREE_PLUGIN_MAIN_FILE), null, null, true);
    wp_enqueue_script('slimselect_js');

wp_register_style('slimselect', plugins_url('css/slimselect.min.css', AHCFREE_PLUGIN_MAIN_FILE));
    wp_enqueue_style('slimselect');
}

//--------------------------------------------
//---------------------------------------------Add button to the admin bar
function ahcfree_vtrts_add_items($admin_bar)
{
    global $pluginsurl;

$wccpadminurl = get_admin_url();
    //The properties of the new item. Read More about the missing 'parent' parameter below
    $args = array(
        'id' => 'visitorstraffic',
        'title' => __('<img src="' . plugins_url('images/vtrtspro.png', AHCFREE_PLUGIN_MAIN_FILE) . '" style="vertical-align:middle;margin-right:5px;" alt="visitor traffic" title="visitor traffic" />'),
        'href' => $wccpadminurl . 'admin.php?page=ahc_hits_counter_menu_free',
        'meta' => array('title' => __('Visitor Traffic Real Time Statistics'),)
    );

//This is where the magic works.
    $admin_bar->add_menu($args);
}

//---------------------------------------- Add plugin settings link to Plugins page
function ahcfree_vtrtsp_plugin_add_settings_link($links)
{
    $settings_link = '<a href="admin.php?page=ahc_hits_counter_menu_free">' . __('visitor traffic') . '</a>';
    array_push($links, $settings_link);
    return $links;
}

function ahcfree_get_traffic_sources_for_display($from_date = '', $to_date = '')
{
    global $wpdb;

// Build date condition
    $date_condition_hits = '';
    $date_condition_keywords = '';

if (!empty($from_date) && !empty($to_date)) {
        $date_condition_hits = $wpdb->prepare(" AND hit_date BETWEEN %s AND %s", $from_date, $to_date);
        $date_condition_keywords = $wpdb->prepare(" AND kwd_date BETWEEN %s AND %s", $from_date, $to_date);
    } else {
        // Default to last 30 days
        $date_condition_hits = " AND hit_date >= DATE_SUB(CURDATE(), INTERVAL 30 DAY)";
        $date_condition_keywords = " AND kwd_date >= DATE_SUB(CURDATE(), INTERVAL 30 DAY)";
    }

$traffic_sources = [];

// 1. Organic Search - Get from ahc_keywords table (this is where your search data actually is!)
    $organic_search = $wpdb->get_results(
        "SELECT 
        COALESCE(se.srh_name, 'Unknown Search Engine') as srh_name,
        COUNT(DISTINCT CONCAT(k.kwd_ip_address, '-', k.kwd_date)) as sessions
     FROM ahc_keywords k
     LEFT JOIN ahc_search_engines se ON k.srh_id = se.srh_id
     WHERE k.site_id = " . get_current_blog_id() . "
     {$date_condition_keywords}
     GROUP BY k.srh_id, se.srh_name
     ORDER BY sessions DESC"
    );

foreach ($organic_search as $search) {
        $traffic_sources[] = [
            'name' => $search->srh_name,
            'sessions' => intval($search->sessions),
            'type' => 'Organic Search',
            'icon' => '🔍'
        ];
    }

// 2. Direct Traffic - Traffic without referrer
    $direct_traffic = $wpdb->get_var($wpdb->prepare(
        "SELECT COUNT(DISTINCT CONCAT(hit_ip_address, '-', hit_date)) as sessions
     FROM ahc_hits 
     WHERE (hit_referer IS NULL OR hit_referer = '' OR hit_referer LIKE %s)
     AND hit_ip_address NOT IN (
         SELECT DISTINCT kwd_ip_address FROM ahc_keywords 
         WHERE site_id = " . get_current_blog_id() . " {$date_condition_keywords}
     )
     {$date_condition_hits}",
        '%' . get_site_url() . '%'
    ));

if ($direct_traffic > 0) {
        $traffic_sources[] = [
            'name' => 'Direct Traffic',
            'sessions' => intval($direct_traffic),
            'type' => 'Direct',
            'icon' => '🔗'
        ];
    }

// 3. Website Referrals - Exclude search engines and own site
    $referral_traffic = $wpdb->get_results($wpdb->prepare(
        "SELECT 
        hit_referer_site,
        COUNT(DISTINCT CONCAT(hit_ip_address, '-', hit_date)) as sessions
     FROM ahc_hits 
     WHERE hit_referer_site IS NOT NULL 
       AND hit_referer_site != ''
       AND hit_referer_site NOT LIKE %s
       AND hit_referer_site NOT IN (
           SELECT DISTINCT SUBSTRING_INDEX(SUBSTRING_INDEX(kwd_referer, '/', 3), '//', -1)
           FROM ahc_keywords 
           WHERE site_id = " . get_current_blog_id() . "
       )
     {$date_condition_hits}
     GROUP BY hit_referer_site
     ORDER BY sessions DESC
     LIMIT 10",
        '%' . parse_url(get_site_url(), PHP_URL_HOST) . '%'
    ));

foreach ($referral_traffic as $referral) {
        $clean_domain = str_replace('www.', '', $referral->hit_referer_site);
        $traffic_sources[] = [
            'name' => $clean_domain,
            'sessions' => intval($referral->sessions),
            'type' => 'Referral',
            'icon' => '🌐'
        ];
    }

// 4. Social Media
    $social_domains = ['facebook.com', 'twitter.com', 'x.com', 'instagram.com', 'linkedin.com', 'youtube.com', 'tiktok.com'];
    if (!empty($social_domains)) {
        $social_conditions = array_map(function ($domain) use ($wpdb) {
            return $wpdb->prepare("hit_referer_site LIKE %s", '%' . $domain . '%');
        }, $social_domains);
        $social_condition = "(" . implode(" OR ", $social_conditions) . ")";

$social_traffic = $wpdb->get_results(
            "SELECT 
            hit_referer_site,
            COUNT(DISTINCT CONCAT(hit_ip_address, '-', hit_date)) as sessions
         FROM ahc_hits 
         WHERE {$social_condition}
         {$date_condition_hits}
         GROUP BY hit_referer_site
         ORDER BY sessions DESC"
        );

foreach ($social_traffic as $social) {
            $clean_domain = str_replace('www.', '', $social->hit_referer_site);
            $traffic_sources[] = [
                'name' => $clean_domain,
                'sessions' => intval($social->sessions),
                'type' => 'Social Media',
                'icon' => '📱'
            ];
        }
    }

// Sort by sessions and add rank and percentage
    usort($traffic_sources, function ($a, $b) {
        return $b['sessions'] - $a['sessions'];
    });

$total_sessions = array_sum(array_column($traffic_sources, 'sessions'));

foreach ($traffic_sources as $index => &$source) {
        $source['rank'] = $index + 1;
        $source['percent'] = $total_sessions > 0 ? round(($source['sessions'] / $total_sessions) * 100, 1) : 0;
    }

return $traffic_sources;
}

function ahcfree_get_hits_by_custom_duration_callback()
{
    if (!is_user_logged_in() || !current_user_can('manage_options')) {
        die('you don\'t have permission to access this resource');
    }

$hits_duration = ahc_free_sanitize_text_or_array_field($_POST['hits_duration']);
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());

$myend_date = new DateTime();
    $myend_date->setTimezone($custom_timezone);

$end_date = $myend_date->format('Y-m-d');
    $full_end_date = $myend_date->format('Y-m-d 23:59:59');

$mystart_date = new DateTime();
    $mystart_date->setTimezone($custom_timezone);
    $stat = '';
    switch ($hits_duration) {

case '7':
            $mystart_date->modify('-6 days');
            $start_date = $mystart_date->format('Y-m-d');
            $full_start_date = $mystart_date->format('Y-m-d 00:00:00');
            $interval = '1 day';

break;

case 'current_month':
            //$mystart_date->modify('0:00 first day of curent month');
            $start_date = $mystart_date->format('Y-m-01');
            $end_date = $mystart_date->format('Y-m-t');
            $full_start_date = $mystart_date->format('Y-m-01');
            $full_end_date = $mystart_date->format('Y-m-t');
            $interval = '1 day';
            $stat = 'current_month';
            break;

case 'last_month':
            $mystart_date->modify('0:00 first day of previous month');
            $start_date = $mystart_date->format('Y-m-d');
            $end_date = $mystart_date->format('Y-m-t');
            $full_start_date = $mystart_date->format('Y-m-d');
            $full_end_date = $mystart_date->format('Y-m-t');
            $interval = '1 day';
            $stat = 'last_month';
            break;

case '30':
            /*$mystart_date->modify('first day of previous month');
            $start_date = $mystart_date->format('Y-m-d');
            $full_start_date = $mystart_date->format('Y-m-d H:i:s');
            
            $myend_date->modify('last day of previous month');
            $end_date = $myend_date->format('Y-m-d');
            $full_end_date = $myend_date->format('Y-m-d H:i:s');*/

$mystart_date->modify('-30 days');
            $start_date = $mystart_date->format('Y-m-d');
            $full_start_date = $mystart_date->format('Y-m-d 00:00:00');

$interval = '1 week';
            break;

case '0':
            $full_start_date = $full_end_date = '';
            $stat = 'all';
            break;

case 'range':
            $full_start_date = $start_date = ahc_free_sanitize_text_or_array_field($_POST['hits_duration_from']);
            $full_end_date = ahc_free_sanitize_text_or_array_field($_POST['hits_duration_to']);
            $interval = '1 day';
            break;

default:
            $mystart_date->modify(' - ' . (AHCFREE_VISITORS_VISITS_LIMIT - 1) . ' days');
            $start_date = $mystart_date->format('Y-m-d');
            $full_start_date = $mystart_date->format('Y-m-d 00:00:00');
            $interval = '1 day';
            break;
    }

$visits_visitors_data = ahcfree_get_visits_by_custom_duration_callback($full_start_date, $full_end_date, $stat);
    //print_r($visits_visitors_data);

$response = array(
        'mystart_date' => $start_date,
        'myend_date' => $end_date,
        'full_start_date' => $full_start_date,
        'full_end_date' => $full_end_date,
        'interval' => $interval,
        'visitors_data' => json_encode($visits_visitors_data['visitors']),
        'visits_data' => json_encode($visits_visitors_data['visits'])
    );

echo json_encode($response);
    die;
}

function ahcfree_get_visits_by_custom_duration_callback($start_date, $end_date, $stat)
{
    global $wpdb;
    $visits_arr = array();
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());

$results = false;

$mystart_date = new DateTime($start_date);
    $myend_date = new DateTime($end_date);

$total_days = date_diff($mystart_date, $myend_date);
    $total_days = $total_days->format("%a");

$cond = "DATE(CONVERT_TZ(vst_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) >= DATE('" . $start_date . " 00:00:00') AND DATE(CONVERT_TZ(vst_date, '" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "')) <= DATE('" . $end_date . " 23:59:59')";

if ($stat == 'year') {
        $sql = "SELECT DATE_FORMAT(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'),'%Y-%m') as group_date,DATE_FORMAT(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "'),'%Y-%m-01') as vst_date,SUM(vst_visitors) as vst_visitors,SUM(vst_visits) as vst_visits FROM ahc_visitors WHERE ahc_visitors.site_id = " . get_current_blog_id() . " and " . $cond . " GROUP BY group_date";
    }
    if ($stat == 'all') {
        $sql = "SELECT DATE_FORMAT(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "', '" . $custom_timezone_offset . "'),'%Y-%m') as group_date,DATE_FORMAT(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "'),'%Y-%m-01') as vst_date,SUM(vst_visitors) as vst_visitors,SUM(vst_visits) as vst_visits FROM ahc_visitors where ahc_visitors.site_id = " . get_current_blog_id() . "  GROUP BY group_date ORDER BY vst_date ASC";
    }
    if ($stat == '' || $stat == 'current_month' || $stat == 'last_month') {
        $sql = "SELECT DATE(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "')) as vst_date, SUM(vst_visits) AS vst_visits,SUM(vst_visitors) as vst_visitors FROM ahc_visitors WHERE ahc_visitors.site_id = " . get_current_blog_id() . " and " . $cond . " GROUP BY DATE(CONVERT_TZ(vst_date,'" . AHCFREE_SERVER_CURRENT_TIMEZONE . "','" . $custom_timezone_offset . "'))";
    }
    //echo $sql;
    $results = $wpdb->get_results($sql, OBJECT);
    if ($results !== false) {

if ($stat == 'year') {
            for ($i = 1; $i <= ahcfree_localtime('n'); $i++) {
                $month = $mystart_date->format('m');
                $year  = $mystart_date->format('Y');
                $total_days = cal_days_in_month(CAL_GREGORIAN, $month, $year);

$visits_arr['visits'][] = array($mystart_date->format('Y-m-d'), 0);
                $visits_arr['visitors'][] = array($mystart_date->format('Y-m-d'), 0);
                $mystart_date->modify('+' . $total_days . ' days');
            }
        } elseif ($stat == 'all') {
            foreach ($results as $key => $element) {
                reset($results);
                if ($key === key($results)) {
                    $first_date = $element->vst_date;
                }

end($results);
                if ($key === key($results)) {
                    $last_date = $element->vst_date;
                }
            }

$d1 = new DateTime($first_date);
            $d2 = new DateTime($last_date);

if (count($results) == 1) {
                $pre_d1 = new DateTime($first_date);
                $pre_d1->modify('first day of previous month');
                $visits_arr['visits'][] = array($pre_d1->format('Y-m-d'), 0);
                $visits_arr['visitors'][] = array($pre_d1->format('Y-m-d'), 0);
            }

$diff = $d1->diff($d2)->m + 1;

for ($i = 1; $i <= $diff; $i++) {
                $visits_arr['visits'][] = array($d1->format('Y-m-d'), 0);
                $visits_arr['visitors'][] = array($d1->format('Y-m-d'), 0);
                $d1->modify('+1 Month');
            }
        } else {
            if ($stat == 'current_month') {
                $total_days = ahcfree_localtime('t');
                $total_days--;
            }
            if ($stat == 'last_month') {
                $total_days = ahcfree_localtime('t', strtotime('first day of previous month'));
                $total_days--;
            }
            $visits_arr['visits'][] = array($mystart_date->format('Y-m-d'), 0);
            $visits_arr['visitors'][] = array($mystart_date->format('Y-m-d'), 0);
            for ($i = 1; $i <= $total_days; $i++) {
                $mystart_date->modify('+1 Day');
                $visits_arr['visits'][] = array($mystart_date->format('Y-m-d'), 0);
                $visits_arr['visitors'][] = array($mystart_date->format('Y-m-d'), 0);
            }
        }
        //print_r($visits_arr['visits']);
        foreach ($visits_arr['visits'] as $key => $visits) {
            foreach ($results as $r) {
                if ($visits[0] == $r->vst_date) {
                    $visits_arr['visits'][$key][1] = $r->vst_visits;
                }
            }
        }

foreach ($visits_arr['visitors'] as $key => $visits) {
            foreach ($results as $r) {
                if ($visits[0] == $r->vst_date) {
                    $visits_arr['visitors'][$key][1] = $r->vst_visitors;
                }
            }
        }
    }
    //echo $wpdb->last_query;
    return $visits_arr;
}
/*function ahcfree_get_visitors_by_custom_duration_callback( $start_date,$end_date ){
    
    global $wpdb;
    $visitors_arr = array();
    $custom_timezone_offset = ahcfree_get_current_timezone_offset();
    $custom_timezone = new DateTimeZone(ahcfree_get_timezone_string());
    
    $results = false;
    
    $mystart_date = new DateTime($start_date);
    $myend_date = new DateTime($end_date);
    
    $total_days = date_diff( $mystart_date, $myend_date );
    $total_days = $total_days->format("%a");
    
    
    if($start_date == 'all'){
        
        $cond = "DATE(CONVERT_TZ(vst_date, " . AHCFREE_SERVER_CURRENT_TIMEZONE . ", '" . $custom_timezone_offset . "')) <= DATE('". $end_date ."')";
    
    }
    else{
        
        $cond = "DATE(CONVERT_TZ(vst_date, " . AHCFREE_SERVER_CURRENT_TIMEZONE . ", '" . $custom_timezone_offset . "')) <= DATE('". $end_date ."') AND DATE(CONVERT_TZ(vst_date, " . AHCFREE_SERVER_CURRENT_TIMEZONE . ", '" . $custom_timezone_offset . "')) >= DATE('". $start_date ."')";
    
    }
    
    
    $sql = "SELECT DATE(CONVERT_TZ(vst_date," . AHCFREE_SERVER_CURRENT_TIMEZONE . ",'" . $custom_timezone_offset . "')) as vst_date, vst_visitors 
            FROM ahc_visitors 
            WHERE ". $cond;
    
    $results = $wpdb->get_results($sql, OBJECT);

if ($results !== false) {
        $mystart_date->modify( '-1 Day' );
        for ($i = count($results); $i < $total_days; $i++) {
            $visitors_arr[] = array($mystart_date->format('Y-m-d') , 0 );
            $mystart_date->modify( '+1 Day' );
        }
        foreach ($results as $r) {

$hitDate = new DateTime($r->vst_date);
            $visitors_arr[] = array($hitDate->format('Y-m-d'), $r->vst_visitors);
        }
    }
    return $visitors_arr;
    
}*/

if (isset($_REQUEST['page']) && $_REQUEST['page'] == "all") {

$search_value = ahc_free_sanitize_text_or_array_field($_REQUEST['search']['value']);

$search_page = ahc_free_sanitize_text_or_array_field($search_value);

$res = ahcfree_get_traffic_by_title(1, false, "", "", $search_page);
        echo json_encode($res);
        exit;
    } else {
        $search_page = ahc_free_sanitize_text_or_array_field($_REQUEST['search']['value']);
        $search_start = ahc_free_sanitize_text_or_array_field($_REQUEST['start']);
        $search_length = ahc_free_sanitize_text_or_array_field($_REQUEST['length']);

$cnt = ahcfree_get_traffic_by_title("", true, "", "", $search_page);

$tTitles = ahcfree_get_traffic_by_title("", false, $search_start, $search_length, $search_page);

$arr["draw"] = 0;
        $arr["recordsTotal"] = $cnt;
        $arr["recordsFiltered"] = $cnt;
        $arr['data'] = $tTitles;
        echo json_encode($arr);
        exit;
    }
}
//add_action("wp_ajax_traffic_by_countries","ahcfree_traffic_by_countries_callback");
function ahcfree_traffic_by_countries_callback()
{
    if (!is_user_logged_in() || !current_user_can('manage_options')) {
        die('you don\'t have permission to access this resource');
    }

if (isset($_REQUEST['page']) && $_REQUEST['page'] == "all") {
        $res = ahcfree_get_top_countries(0, "", "", 1, false);
        echo json_encode($res);
        exit;
    } else {

$search_start = ahc_free_sanitize_text_or_array_field($_REQUEST['start']);
        $search_length = ahc_free_sanitize_text_or_array_field($_REQUEST['length']);

$tTitles = ahcfree_get_top_countries(0, $search_start, $search_length, "", false);
        $cnt = ahcfree_get_top_countries(0, "", "", "", true);

$arr["draw"] = 0;
        $arr["recordsTotal"] = $cnt;
        $arr["recordsFiltered"] = $cnt;
        $arr['data'] = $tTitles['data'];
        echo json_encode($arr);
        exit;
    }
}
// Fixed callback function - handles both GET and POST parameters properly
// Enhanced callback function with original data processing
add_action("wp_ajax_recent_visitor_by_ip", "ahcfree_recent_visitor_by_ip_callback_optimized");
function ahcfree_recent_visitor_by_ip_callback_optimized()
{
    if (!is_user_logged_in() || !current_user_can('manage_options')) {
        die('you don\'t have permission to access this resource');
    }

$all = (isset($_REQUEST['page']) && $_REQUEST['page'] == 'all') ? 1 : 0;

// Enhanced: Handle both GET (DataTables) and POST (form) parameters
    $search_from_date = '';
    $search_to_date = '';
    $search_ip = '';

// Check GET parameters first (DataTables AJAX)
    if (isset($_GET['from_date']) && !empty($_GET['from_date'])) {
        $search_from_date = sanitize_text_field($_GET['from_date']);
    }
    if (isset($_GET['to_date']) && !empty($_GET['to_date'])) {
        $search_to_date = sanitize_text_field($_GET['to_date']);
    }
    if (isset($_GET['ip']) && !empty($_GET['ip'])) {
        $search_ip = sanitize_text_field($_GET['ip']);
    }

// Fallback to REQUEST parameters
    if (empty($search_from_date) && isset($_REQUEST['from_date'])) {
        $search_from_date = sanitize_text_field($_REQUEST['from_date']);
    }
    if (empty($search_to_date) && isset($_REQUEST['to_date'])) {
        $search_to_date = sanitize_text_field($_REQUEST['to_date']);
    }
    if (empty($search_ip) && isset($_REQUEST['ip'])) {
        $search_ip = sanitize_text_field($_REQUEST['ip']);
    }

// Also check POST data for form submissions (backward compatibility)
    if (isset($_POST['ip_addr']) && !empty($_POST['ip_addr'])) {
        $search_ip = sanitize_text_field($_POST['ip_addr']);
    }
    if (isset($_POST['r_from_dt']) && !empty($_POST['r_from_dt'])) {
        $search_from_date = sanitize_text_field($_POST['r_from_dt']);
    }
    if (isset($_POST['r_to_dt']) && !empty($_POST['r_to_dt'])) {
        $search_to_date = sanitize_text_field($_POST['r_to_dt']);
    }

// Get pagination parameters
    $start = isset($_REQUEST['start']) ? intval($_REQUEST['start']) : 0;
    $length = isset($_REQUEST['length']) ? intval($_REQUEST['length']) : 10;

// Get count and data
    $cnt = ahcfree_get_recent_visitors_with_date_range($all, true, "", "", $search_from_date, $search_to_date, $search_ip);
    $recentVisitors = ahcfree_get_recent_visitors_with_date_range($all, false, $start, $length, $search_from_date, $search_to_date, $search_ip);

$arr = array();
    $arr["draw"] = isset($_REQUEST['draw']) ? intval($_REQUEST['draw']) : 0;
    $arr["recordsTotal"] = $cnt;
    $arr["recordsFiltered"] = $cnt;
    $arr['data'] = $recentVisitors ? $recentVisitors : array();

// Set proper headers
    header('Content-Type: application/json');
    echo json_encode($arr);
    wp_die();
}

// Enhanced date range function with complete original data processing
function ahcfree_get_recent_visitors_with_date_range($all, $cnt = true, $start = '', $limit = '', $from_date = '', $to_date = '', $ip = '')
{
    global $wpdb;
    $cond = "";
    $date_cond = "";

// Enhanced: Better date parsing to handle multiple formats
    if (!empty($from_date) && !empty($to_date)) {
        // Parse dates more robustly
        $fromdt = ahcfree_parse_date($from_date);
        $todt = ahcfree_parse_date($to_date);

if ($fromdt && $todt) {
            $date_cond = " AND DATE(vtr_date) BETWEEN '$fromdt' AND '$todt'";
        }
    } elseif (!empty($from_date) && empty($to_date)) {
        $fromdt = ahcfree_parse_date($from_date);
        if ($fromdt) {
            $date_cond = " AND DATE(vtr_date) >= '$fromdt'";
        }
    } elseif (empty($from_date) && !empty($to_date)) {
        $todt = ahcfree_parse_date($to_date);
        if ($todt) {
            $date_cond = " AND DATE(vtr_date) <= '$todt'";
        }
    } else {
        // No dates provided - show last 30 days
        $end_date = date('Y-m-d');
        $start_date = date('Y-m-d', strtotime('-30 days'));
        $date_cond = " AND DATE(vtr_date) BETWEEN '$start_date' AND '$end_date'";
    }

// Handle IP filtering
    if (!empty($ip)) {
        $ip = sanitize_text_field($ip);
        $cond .= " AND vtr_ip_address LIKE '" . esc_sql($ip) . "%'";
    }

$site_id = get_current_blog_id();

if ($cnt == true) {
        $sql_query = "SELECT COUNT(DISTINCT vtr_ip_address, DATE(vtr_date)) as cnt 
                     FROM `ahc_recent_visitors` 
                     WHERE site_id = $site_id 
                     AND vtr_ip_address NOT LIKE 'UNKNOWN%' 
                     $cond $date_cond";

$count = $wpdb->get_row($sql_query);
        return $count ? $count->cnt : 0;
    }

$limitCond = "";
    if ($start !== '' && $limit !== '') {
        $limitCond = " LIMIT " . intval($start) . ", " . intval($limit);
    }

if ($all == 1) {
        $limitCond = "";
    }

$sql_query = "SELECT 
        v.vtr_id,
        v.vtr_ip_address,
        v.vtr_referer,
        DATE(v.vtr_date) as vtr_date,
        TIME(v.vtr_time) as vtr_time,
        v.ahc_city,
        v.ahc_region,
        c.ctr_name,
        c.ctr_internet_code,
        b.bsr_name,
        b.bsr_icon,
        COALESCE(hits_data.hit_count, 1) as day_hits2
    FROM (
        SELECT DISTINCT 
            vtr_ip_address, 
            DATE(vtr_date) as visit_date,
            MIN(vtr_id) as min_id
        FROM `ahc_recent_visitors` 
        WHERE site_id = $site_id 
        AND vtr_ip_address NOT LIKE 'UNKNOWN%' 
        $cond $date_cond
        GROUP BY vtr_ip_address, DATE(vtr_date)
        ORDER BY min_id DESC
        $limitCond
    ) unique_visits
    JOIN `ahc_recent_visitors` v ON v.vtr_ip_address = unique_visits.vtr_ip_address 
        AND DATE(v.vtr_date) = unique_visits.visit_date
        AND v.vtr_id = unique_visits.min_id
    LEFT JOIN `ahc_countries` c ON v.ctr_id = c.ctr_id
    LEFT JOIN `ahc_browsers` b ON v.bsr_id = b.bsr_id
    LEFT JOIN (
        SELECT 
            hit_ip_address,
            DATE(hit_date) as hit_date,
            COUNT(*) as hit_count
        FROM `ahc_hits` 
        WHERE site_id = $site_id
        AND hit_page_title != ''
        GROUP BY hit_ip_address, DATE(hit_date)
    ) hits_data ON hits_data.hit_ip_address = v.vtr_ip_address 
        AND hits_data.hit_date = DATE(v.vtr_date)
    ORDER BY v.vtr_id DESC";

$results = $wpdb->get_results($sql_query);

if ($results !== false) {
        $arr = array();
        $new = array();
        $c = 0;

if (is_array($results)) {
            foreach ($results as $hit) {

$visitDate = new DateTime($hit->vtr_date . ' ' . $hit->vtr_time);

// Process referer
                $hit_referer = '';
                if ($hit->vtr_referer) {
                    $parsed_host = parse_url($hit->vtr_referer, PHP_URL_HOST);
                    $server_name = isset($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : '';
                    if ($parsed_host != $server_name) {
                        $hit_referer = rawurldecode($hit->vtr_referer);
                    }
                }

$hitip = '';
                if (!empty($hit_referer)) {
                    $hitip = '<a href="' . esc_url($hit_referer) . '" target="_blank">' .
                        '<img src="' . esc_url(plugins_url('images/openW.jpg', AHCFREE_PLUGIN_MAIN_FILE)) . '" ' .
                        'title="Referring url" width="16" height="16"></a>';
                }

// Process IP address
                $display_ip = $hit->vtr_ip_address;
                if (get_option('ahcfree_ahcfree_haships') == '1') {
                    $display_ip = ahcfree_haship($hit->vtr_ip_address);
                }

$arr[$c]['hit_id'] = $hit->vtr_id;
                $ip_cell = '<span class="ahcfree-ip-cell" title="' . esc_attr($display_ip) . '" style="display:inline-block;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:middle;">' . esc_html($display_ip) . '</span>';
                $arr[$c]['hit_ip_address'] = $ip_cell . "&nbsp;" . $hitip;

// Process country flag
                $img = "";
                if ($hit->ctr_internet_code != '') {
                    $imgurl = plugins_url('images/flags/' . strtolower($hit->ctr_internet_code) . '.png', AHCFREE_PLUGIN_MAIN_FILE);
                    $img = "<img src='" . esc_url($imgurl) . "' border='0' width='22' height='18' " .
                        "title='" . esc_attr($hit->ctr_name) . "' onerror='imgFlagError(this)' />&nbsp;";
                }

$arr[$c]['hit_date'] = $hit->vtr_date;
                $arr[$c]['hit_time'] = $hit->vtr_time;
                $arr[$c]['ctr_internet_code'] = $hit->ctr_internet_code;
                $arr[$c]['bsr_name'] = $hit->bsr_name;
                $arr[$c]['bsr_icon'] = $hit->bsr_icon;

// Process city and region
                $city = (strpos($hit->ahc_city, 'charset') !== false) ? '-' : $hit->ahc_city;
                $region = (strpos($hit->ahc_region, '}') !== false) ? '-' : $hit->ahc_region;

$arr[$c]['ahc_region'] = $region;
                $arr[$c]['ahc_city'] = $city;

// Build location string
                $location_parts = array();
                if ($hit->ctr_name) $location_parts[] = $hit->ctr_name;
                if ($city && $city != '-') $location_parts[] = $city;
                if ($region && $region != '-') $location_parts[] = $region;

$arr[$c]['ctr_name'] = $img . implode(', ', $location_parts);
                $arr[$c]['time'] = $visitDate->format('d M Y @ h:i a');

// Calculate session duration for this IP and date
                // المنطق:
                //   1) نحسب الفرق بين أول وآخر hit في نفس اليوم (vtr_date)
                //   2) نحسب الفرق بين أول hit وأحدث heartbeat في نفس اليوم
                //   3) نأخذ القيمة الأكبر بينهما (لا تتجاوز 3 ساعات = نافذة الجلسة)

$session_duration_seconds = 0;

// أول وآخر hit في نفس اليوم
                $hits_range = $wpdb->get_row($wpdb->prepare(
                    "SELECT
                        MIN(CONCAT(hit_date, ' ', hit_time)) AS first_hit,
                        MAX(CONCAT(hit_date, ' ', hit_time)) AS last_hit,
                        TIMESTAMPDIFF(SECOND,
                            MIN(CONCAT(hit_date, ' ', hit_time)),
                            MAX(CONCAT(hit_date, ' ', hit_time))
                        ) AS hits_diff
                     FROM ahc_hits
                     WHERE hit_ip_address = %s AND hit_date = %s AND site_id = %d",
                    $hit->vtr_ip_address,
                    $hit->vtr_date,
                    $site_id
                ));

if ($hits_range && $hits_range->first_hit) {
                    // القيمة من الـ hits (قد تكون 0 لو صفحة واحدة)
                    $from_hits = (int) $hits_range->hits_diff;

// محاولة heartbeat match
                    $from_heartbeat = 0;

// الآن كلا الـ heartbeat و الـ INSERT الأصلي يستخدمان ahcfree_localtime
                    // لكن ahc_hits يخزّن UTC
                    // نحوّل hit_date + hit_time من UTC إلى توقيت البلجن قبل المقارنة
                    $plugin_offset_str = ahcfree_get_current_timezone_offset(); // "+03:00"

// نحوّل first_hit و last_hit من UTC إلى توقيت البلجن
                    $first_hit_local = $wpdb->get_var($wpdb->prepare(
                        "SELECT DATE_FORMAT(CONVERT_TZ(%s, '+00:00', %s), '%%Y-%%m-%%d %%H:%%i:%%s')",
                        $hits_range->first_hit,
                        $plugin_offset_str
                    ));

$last_hit_local = $wpdb->get_var($wpdb->prepare(
                        "SELECT DATE_FORMAT(CONVERT_TZ(%s, '+00:00', %s), '%%Y-%%m-%%d %%H:%%i:%%s')",
                        $hits_range->last_hit,
                        $plugin_offset_str
                    ));

if ($first_hit_local && $last_hit_local) {
                        // نبحث عن أحدث heartbeat ضمن نافذة الجلسة
                        // نستخدم مقارنة نصوص مباشرة - لا تحتاج UNIX_TIMESTAMP
                        $last_heartbeat_local = $wpdb->get_var($wpdb->prepare(
                            "SELECT MAX(`date`)
                             FROM ahc_online_users
                             WHERE hit_ip_address = %s
                               AND site_id        = %d
                               AND `date`         >= DATE_SUB(%s, INTERVAL 1 MINUTE)
                               AND `date`         <= DATE_ADD(%s, INTERVAL 3 HOUR)",
                            $hit->vtr_ip_address,
                            $site_id,
                            $first_hit_local,
                            $last_hit_local
                        ));

if ($last_heartbeat_local) {
                            $diff = strtotime($last_heartbeat_local) - strtotime($first_hit_local);
                            if ($diff > 0 && $diff <= 10800) {
                                $from_heartbeat = $diff;
                            }
                        }

// Debug log
                        if (defined('WP_DEBUG') && WP_DEBUG) {
                          /*  error_log(sprintf(
                                '[ahcfree dur] ip=%s first_local=%s last_local=%s last_hb=%s from_hits=%d from_hb=%d',
                                $hit->vtr_ip_address,
                                $first_hit_local,
                                $last_hit_local,
                                $last_heartbeat_local ?: 'none',
                                $from_hits,
                                $from_heartbeat
                            ));*/
                        }
                    }

// نأخذ القيمة الأكبر
                    $session_duration_seconds = max($from_hits, $from_heartbeat);
                }

if ($session_duration_seconds && $session_duration_seconds > 0) {
                    $hours = floor($session_duration_seconds / 3600);
                    $minutes = floor(($session_duration_seconds % 3600) / 60);
                    $seconds = $session_duration_seconds % 60;
                    $duration_str = sprintf('%02d:%02d:%02d', $hours, $minutes, $seconds);
                } else {
                    // لا يوجد heartbeat مسجّل → الزائر أغلق الصفحة خلال أقل من 15 ثانية
                    // (الحد الأدنى للـ Heartbeat API)
                    $duration_str = '< 15s';
                }

$arr[$c]['duration'] = $duration_str;

// Create the day hits button with proper data attributes
                $arr[$c]['day_hits'] = '<button style="background-color: #4CAF50; border: none; color: white; padding: 2px 8px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px;" 
                    data-hitdate="' . esc_attr($hit->vtr_date) . '" 
                    data-hitipaddress="' . esc_attr($hit->vtr_ip_address) . '" 
                    data-hitcountry="' . esc_attr(implode(', ', $location_parts)) . '" 
                    data-toggle="modal" 
                    data-target="#DayHitsModal">' . intval($hit->day_hits2) . '</button>';

if ($all == 1) {
                    $new[$c]['hit_ip_address'] = $hit->vtr_ip_address;
                    $new[$c]['ctr_name'] = implode(', ', $location_parts);
                    $new[$c]['time'] = $visitDate->format('d M Y @ h:i a');
                    $new[$c]['day_hits'] = ($hit->day_hits2 > 0) ? $hit->day_hits2 : '1';
                    $new[$c]['duration'] = $duration_str;
                }

$c++;
            }
        }

if ($all == 1) {
            return $new;
        }
        return $arr;
    } else {
        return false;
    }
}

// Enhanced helper function for robust date parsing
function ahcfree_parse_date($date_string)
{
    if (empty($date_string)) {
        return false;
    }

// Try different date formats
    $formats = array(
        'Y-m-d',     // 2025-06-01
        'm-d-Y',     // 06-01-2025
        'd-m-Y',     // 01-06-2025
        'Y/m/d',     // 2025/06/01
        'm/d/Y',     // 06/01/2025
        'd/m/Y'      // 01/06/2025
    );

foreach ($formats as $format) {
        $date = DateTime::createFromFormat($format, $date_string);
        if ($date !== false) {
            return $date->format('Y-m-d');
        }
    }

// Fallback to strtotime
    $timestamp = strtotime($date_string);
    if ($timestamp !== false) {
        return date('Y-m-d', $timestamp);
    }

return false;
}

// Simplified AJAX handler for visitor info (unchanged)
add_action("wp_ajax_ahcfree_get_visitor_info", "ahcfree_get_visitor_info_callback_optimized");
function ahcfree_get_visitor_info_callback_optimized()
{
    if (!is_user_logged_in() || !current_user_can('manage_options')) {
        wp_die('Unauthorized');
    }

$ip = sanitize_text_field($_POST['hitipaddress']);
    $hitdate = sanitize_text_field($_POST['hitdate']);

// Since we already have basic browser info, just return it
    // This is mainly for consistency with the existing modal structure
    $response = array(
        'browser' => sanitize_text_field($_POST['browser']) ?: 'Unknown Browser',
        'os' => 'Unknown OS' // You can enhance this if you have OS data
    );

wp_send_json($response);
}
add_action("wp_ajax_latest_search_words", "ahcfree_latest_search_words_callback");
function ahcfree_latest_search_words_callback()
{
    if (!is_user_logged_in() || !current_user_can('manage_options')) {
        die('you don\'t have permission to access this resource');
    }
    if (isset($_REQUEST['page']) && $_REQUEST['page'] == "all") {

$fdt = ahc_free_sanitize_text_or_array_field($_REQUEST['fdt']);
        $tdt = ahc_free_sanitize_text_or_array_field($_REQUEST['tdt']);

$res = ahcfree_get_latest_search_key_words_used(1, false, "", "", $fdt, $tdt);
        echo json_encode($res);
        exit;
    } else {

$fdt = ahc_free_sanitize_text_or_array_field($_REQUEST['fdt']);
        $tdt = ahc_free_sanitize_text_or_array_field($_REQUEST['tdt']);
        $start = ahc_free_sanitize_text_or_array_field($_REQUEST['start']);
        $length = ahc_free_sanitize_text_or_array_field($_REQUEST['length']);

$cnt = ahcfree_get_latest_search_key_words_used("", true, "", "", $fdt, $tdt);
        $recentVisitors = ahcfree_get_latest_search_key_words_used("", false, $start, $length, $fdt, $tdt);

$arr["draw"] = 0;
        $arr["recordsTotal"] = $cnt;
        $arr["recordsFiltered"] = $cnt;
        $arr['data'] = $recentVisitors;
        echo json_encode($arr);
        exit;
    }
}
add_action("wp_ajax_today_traffic_index", "ahcfree_today_traffic_index_callback");
function ahcfree_today_traffic_index_callback()
{

if (!is_user_logged_in() || !current_user_can('manage_options')) {
        die('you don\'t have permission to access this resource');
    }

if (isset($_REQUEST['page']) && $_REQUEST['page'] == "all") {
        $fdt = ahc_free_sanitize_text_or_array_field($_REQUEST['fdt']);
        $tdt = ahc_free_sanitize_text_or_array_field($_REQUEST['tdt']);

$res = ahcfree_get_vsitors_by_country(1, false, "", "", $fdt, $tdt);
        echo json_encode($res);
        exit;
    } else {
        $fdt = ahc_free_sanitize_text_or_array_field($_REQUEST['fdt']);
        $tdt = ahc_free_sanitize_text_or_array_field($_REQUEST['tdt']);
        $start = ahc_free_sanitize_text_or_array_field($_REQUEST['start']);
        $length = ahc_free_sanitize_text_or_array_field($_REQUEST['length']);

$cnt = ahcfree_get_vsitors_by_country("", true, "", "", $fdt, $tdt);
        $countries = ahcfree_get_vsitors_by_country("", false, $start, $length, $fdt, $tdt);

$arr["draw"] = 0;
        $arr["recordsTotal"] = $cnt;
        $arr["recordsFiltered"] = $cnt;
        $arr['data'] = $countries;
        echo json_encode($arr);
        exit;
    }
}
add_action("wp_ajax_visits_time_graph", "ahcfree_visits_time_graph_callback");
function ahcfree_visits_time_graph_callback()
{

if (!is_user_logged_in() || !current_user_can('manage_options')) {
        die('you don\'t have permission to access this resource');
    }

$times = ahcfree_get_time_visits(1, "", "", $fdt, $tdt);
        echo json_encode($times);
        exit;
    } else {

$times = ahcfree_get_time_visits("", $start, $length, $fdt, $tdt);
        //$res = ahcfree_get_time_visits("","","",$_REQUEST['fdt'],$_REQUEST['tdt']);
        $cnt = 24;
        $arr["draw"] = 0;
        $arr["recordsTotal"] = $cnt;
        $arr["recordsFiltered"] = $cnt;
        $arr['data'] = $times;
        echo json_encode($arr);
        exit;
    }
}

//------------------------------------------------------------------------
// --------------------------------------- Create front-end widget
// Creating the widget 
class ahcfree_vtrts_widget extends WP_Widget
{

function __construct()
    {
        parent::__construct(
            // Base ID of your widget
            'ahcfree_vtrts_widget',
            // Widget name will appear in UI
            __('Visitor Traffic', 'wpb_widget_domain'),
            // Widget description
            array('description' => __('Display your site statistics', 'wpb_widget_domain'),)
        );
    }

// Creating widget front-end
    // This is where the action happens
    public function widget($args, $instance)
    {
        $title = apply_filters('widget_title', $instance['title']);
        // before and after widget arguments are defined by themes

if (!empty($title))
            echo esc_html($title);

$ahc_sum_stats = ahcfree_get_summary_statistics();

if (is_array($instance)) {
            // This is where you run the code and display the output
            echo '<ul style="list-style:none; ' . esc_attr($instance['fontTypeCombo']) . '; font-size:' . esc_attr($instance['fontSizeCombo']) . 'px">';

if (isset($instance['display_visitorstoday']) && ($instance['display_visitorstoday'] == 1 or $instance['display_visitorstoday'] == '1')) {
                echo '<li><b>Today\'s visitors: </b><span>' . ahcfree_NumFormat(intval($ahc_sum_stats['today']['visitors'])) . '</span></li>';
            }
            if (isset($instance['display_pageviewtoday']) && ($instance['display_pageviewtoday'] == 1 or $instance['display_pageviewtoday'] == '1')) {
                echo '<li><b>Today\'s page views: : </b><span>' . ahcfree_NumFormat(intval($ahc_sum_stats['today']['visits'])) . '</span></li>';
            }

if (isset($instance['display_totalvisitors']) && ($instance['display_totalvisitors'] == 1 or $instance['display_totalvisitors'] == '1')) {
                echo '<li><b>Total visitors : </b><span>' . ahcfree_NumFormat(intval($ahc_sum_stats['total']['visitors'])) . '</span></li>';
            }

if (isset($instance['display_totalpageview']) &&  ($instance['display_totalpageview'] == 1 or $instance['display_totalpageview'] == '1')) {
                echo '<li><b>Total page views: </b><span>' . ahcfree_NumFormat(intval($ahc_sum_stats['total']['visits'])) . '</span></li>';
            }

echo '</ul>';
        }
    }

// Widget Backend 
    public function form($instance)
    {
        extract($instance);

if (isset($instance['title'])) {
            $title = $instance['title'];
        } else {
            $title = __('Site Statistics', 'wpb_widget_domain');
        }
        // Widget admin form

$fontTypeCombo = (isset($fontTypeCombo)) ? $fontTypeCombo : '';
        $display_valuescolor = (isset($display_valuescolor)) ? $display_valuescolor : '';
        $display_titlecolor = (isset($display_titlecolor)) ? $display_titlecolor : '';

<p>
            <label for="<?php echo esc_attr($this->get_field_id('title')); ?>"><?php _e('Widget Title:'); ?></label>
            <input class="widefat" id="<?php echo esc_attr($this->get_field_id('title')); ?>" name="<?php echo esc_attr($this->get_field_name('title')); ?>" type="text" value="<?php echo esc_attr($title); ?>" />
        </p>

<p>
            <label for="<?php echo esc_attr($this->get_field_id('fontTypeCombo')); ?>"><?php _e('Font Type:'); ?></label>
            <select class="widefat" id="<?php echo esc_attr($this->get_field_id('fontTypeCombo')); ?>" name="<?php echo esc_attr($this->get_field_name('fontTypeCombo')); ?>">
                <optgroup class='verdana'>
                    <option <?php selected($fontTypeCombo, 'font-family:Verdana, Geneva, sans-serif'); ?> value="font-family:Verdana, Geneva, sans-serif">Verdana</option>
                </optgroup>

<optgroup class='TimesNew'>
                    <option <?php selected($fontTypeCombo, "font-family:'Times New Roman', Times, serif"); ?> value="font-family:'Times New Roman', Times, serif">Times New Roman</option>
                </optgroup>

<optgroup class='Arial'>
                    <option <?php selected($fontTypeCombo, "font-family:Arial, Helvetica, sans-serif"); ?> value="font-family:Arial, Helvetica, sans-serif">Arial</option>
                </optgroup>

<optgroup class='Tahoma'>
                    <option <?php selected($fontTypeCombo, "font-family:Tahoma, Geneva, sans-serif"); ?> value="font-family:Tahoma, Geneva, sans-serif">Tahoma</option>
                </optgroup>

<optgroup class='Courier'>
                    <option <?php selected($fontTypeCombo, "font-family:'Courier New', Courier, monospace"); ?> value="font-family:'Courier New', Courier, monospace">Courier</option>
                </optgroup>

<optgroup class='TrebuchetMS'>
                    <option <?php selected($fontTypeCombo, "font-family:'Trebuchet MS', Arial, Helvetica, sans-serif"); ?> value="font-family:'Trebuchet MS', Arial, Helvetica, sans-serif">Trebuchet MS</option>
                </optgroup>

</select>

</p>
        <label for="<?php echo esc_attr($this->get_field_id('fontSizeCombo')); ?>"><?php _e('Font Size:'); ?></label>
        <select class="widefat" id="<?php echo esc_attr($this->get_field_id('fontSizeCombo')); ?>" name="<?php echo esc_attr($this->get_field_name('fontSizeCombo')); ?>">
            <?php
            for ($fs = 8; $fs <= 22; $fs++) {
                $fontSizeCombo = (isset($fontSizeCombo)) ? $fontSizeCombo : '12';
            ?>
                <option value="<?php echo intval($fs) ?>" <?php selected($fontSizeCombo, $fs); ?>><?php echo intval($fs); ?>px</option>
            <?php } ?>
        </select>
        <p>

</p>

<p><em>Display :</em></p>
        <?php

$display_visitorstoday = isset($display_visitorstoday) ? $display_visitorstoday : '0';
        $display_pageviewtoday = isset($display_pageviewtoday) ? $display_pageviewtoday : '0';
        $display_totalpageview = isset($display_totalpageview) ? $display_totalpageview : '0';
        $display_totalvisitors = isset($display_totalvisitors) ? $display_totalvisitors : '0';
        ?>

<p>
            <input class="widefat" id="<?php echo esc_attr($this->get_field_id('display_visitorstoday')); ?>" name="<?php echo esc_attr($this->get_field_name('display_visitorstoday')); ?>" type="checkbox" value="1" <?php checked($display_visitorstoday, '1'); ?> />&nbsp;<label for="<?php echo esc_attr($this->get_field_id('display_visitorstoday')); ?>">Today\'s visitors</label>
        </p>
        <p>
            <input class="widefat" id="<?php echo esc_attr($this->get_field_id('display_pageviewtoday')); ?>" name="<?php echo esc_attr($this->get_field_name('display_pageviewtoday')); ?>" type="checkbox" value="1" <?php checked($display_pageviewtoday, '1'); ?> />&nbsp;<label for="<?php echo esc_attr($this->get_field_id('display_pageviewtoday')); ?>">Today\'s page views</label>
        </p>
        <p>
            <input class="widefat" id="<?php echo esc_attr($this->get_field_id('display_totalpageview')); ?>" name="<?php echo esc_attr($this->get_field_name('display_totalpageview')); ?>" type="checkbox" value="1" <?php checked($display_totalpageview, '1'); ?> />&nbsp;<label for="<?php echo esc_attr($this->get_field_id('display_totalpageview')); ?>">Total page views</label>
        </p>
        <p>
            <input class="widefat" id="<?php echo esc_attr($this->get_field_id('display_totalvisitors')); ?>" name="<?php echo esc_attr($this->get_field_name('display_totalvisitors')); ?>" type="checkbox" value="1" <?php checked($display_totalvisitors, '1'); ?> />&nbsp;<label for="<?php echo esc_attr($this->get_field_id('display_totalvisitors')); ?>">Total visitors</label>
        </p>

<?php
    }

// Updating widget replacing old instances with new
    public function update($new_instance, $old_instance)
    {

return $new_instance;
    }
}

// Class ahcfree_vtrts_widget ends here
// Register and load the widget
function ahcfree_wpb_load_widget()
{
    register_widget('ahcfree_vtrts_widget');
}

add_action('widgets_init', 'ahcfree_wpb_load_widget');

// ============================================================
// WordPress Heartbeat API — استقبال ping من الزائر
// يُستدعى تلقائياً من WordPress كل 15-60 ثانية
// يحدّث عمود date في ahc_online_users الموجود أصلاً
// (لا يضيف أي عمود أو جدول جديد)
// ============================================================
add_filter('heartbeat_received', 'ahcfree_heartbeat_received', 10, 2);
add_filter('heartbeat_nopriv_received', 'ahcfree_heartbeat_received', 10, 2);

function ahcfree_heartbeat_received($response, $data)
{
    if (empty($data['ahcfree_heartbeat_ip'])) {
        return $response;
    }

global $wpdb;

$ip      = sanitize_text_field($data['ahcfree_heartbeat_ip']);
    $site_id = get_current_blog_id();

// نستخدم نفس ahcfree_localtime التي يستخدمها INSERT الأصلي
    // لضمان تطابق التوقيت في جميع السجلات
    $now_local = ahcfree_localtime('Y-m-d H:i:s');

// نحدّث جميع سجلات الـ IP النشطة (ليس LIMIT 1)
    // لضمان أن أي استعلام يقرأ أحدث وقت صحيح
    $updated = $wpdb->query($wpdb->prepare(
        "UPDATE `ahc_online_users`
         SET    `date` = %s
         WHERE  `hit_ip_address` = %s
           AND  `site_id`        = %d
           AND  `date`           >= DATE_SUB(%s, INTERVAL 2 HOUR)",
        $now_local,
        $ip,
        $site_id,
        $now_local
    ));

// Debug log — يمكن حذفه لاحقاً بعد التأكد
    if (defined('WP_DEBUG') && WP_DEBUG) {
       /* error_log(sprintf(
            '[ahcfree heartbeat] ip=%s site=%d rows_updated=%d last_error=%s',
            $ip, $site_id, (int) $updated, $wpdb->last_error
        ));*/
    }

// نضيف معلومات تشخيص في الـ response (يظهر في Network → Response)
    $response['ahcfree_hb'] = array(
        'ip'           => $ip,
        'rows_updated' => (int) $updated,
        'error'        => $wpdb->last_error,
    );

return $response;
}