<?php
if ( 'debug' == $current ) {

    if ( ! current_user_can('edit_others_posts') ) {
        echo '<p style="text-align: center;">' . esc_html(__('Sorry, you do not have enough permissions to do this. Please contact the site administrator for support.', 'wordpress-popular-posts')) . '</p>';
    }
    else {
        global $wpdb, $wp_version;

        $my_theme = wp_get_theme();
        $site_plugins = get_plugins();
        $plugin_names = [];
        $performance_nag = get_option('wpp_performance_nag');

        if ( ! $performance_nag ) {
            $performance_nag = [
                'status' => 0,
                'last_checked' => null
            ];
        }

        switch($performance_nag['status']) {
            case 0:
                $performance_nag_status = 'Inactive';
                break;
            case 1:
                $performance_nag_status = 'Active';
                break;
            case 2:
                $performance_nag_status = 'Remind me later';
                break;
            case 3:
                $performance_nag_status = 'Dismissed';
                break;
            default:
                $performance_nag_status = 'Inactive';
                break;
        }

        foreach( $site_plugins as $main_file => $plugin_meta ) :
            if ( ! is_plugin_active($main_file) ) {
                continue;
            }
            $plugin_names[] = sanitize_text_field($plugin_meta['Name'] . ' ' . $plugin_meta['Version']);
        endforeach;
        ?>
        <div id="wpp_debug">
            <h3>Plugin Configuration</h3>
            <p><strong>Performance Nag:</strong> <?php echo $performance_nag_status; //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- $performance_nag_status is safe to use ?></p>
            <p><strong>Log Limit:</strong> <?php echo ( $this->config['tools']['log']['limit'] ) ? 'Yes, keep data for ' . esc_html($this->config['tools']['log']['expires_after']) . ' days' : 'No'; ?></p>
            <p><strong>Log Views From:</strong> <?php echo ( 0 == $this->config['tools']['log']['level'] ) ? 'Visitors only' : ( (2 == $this->config['tools']['log']['level']) ? 'Logged-in users only' : 'Everyone' ); //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></p>
            <p><strong>Data Caching:</strong> <?php echo ( $this->config['tools']['cache']['active'] ) ? 'Yes, ' . esc_html($this->config['tools']['cache']['interval']['value']) . ' ' . esc_html($this->config['tools']['cache']['interval']['time']) : 'No'; ?></p>
            <p><strong>Data Sampling:</strong> <?php echo ( $this->config['tools']['sampling']['active'] ) ? 'Yes, with a rate of ' . esc_html($this->config['tools']['sampling']['rate']) : 'No'; ?></p>
            <p><strong>External object cache:</strong> <?php echo ( wp_using_ext_object_cache() ) ? 'Yes' : 'No'; ?></p>
            <p><strong>WPP_CACHE_VIEWS:</strong> <?php echo ( defined('WPP_CACHE_VIEWS') && WPP_CACHE_VIEWS ) ? 'Yes' : 'No'; ?></p>

            <br />

            <h3>System Info</h3>
            <p><strong>PHP version:</strong> <?php echo phpversion(); //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></p>
            <p><strong>PHP extensions:</strong> <?php echo implode(', ', get_loaded_extensions()); //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></p>
            <p><strong>Database version:</strong> <?php echo $wpdb->get_var('SELECT VERSION();'); //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></p>
            <p><strong>InnoDB availability:</strong> <?php echo $wpdb->get_var("SELECT SUPPORT FROM INFORMATION_SCHEMA.ENGINES WHERE ENGINE = 'InnoDB';"); //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></p>
            <p><strong>WordPress version:</strong> <?php echo $wp_version; //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- $wp_version is safe to use ?></p>
            <p><strong>Multisite:</strong> <?php echo ( function_exists('is_multisite') && is_multisite() ) ? 'Yes' : 'No'; ?></p>
            <p><strong>Active plugins:</strong> <?php echo implode(', ', $plugin_names); //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- $plugin_names is safe to use ?></p>
            <p><strong>Theme:</strong> <?php echo esc_html($my_theme->get('Name')) . ' (' . esc_html($my_theme->get('Version')) . ') by ' . esc_html($my_theme->get('Author')); ?></p>
        </div>
        <?php
    }
}