<?php
/**
 * Plugin activator class
 */

if (!defined('ABSPATH')) {
    exit;
}

class MLS_Activator {

    /**
     * Run on plugin activation
     */
    public static function activate() {
        // Create database tables
        self::create_tables();

        // Set default options
        self::set_defaults();

        // Schedule cron events if auto-sync enabled
        self::schedule_cron();

        // Create upload directory
        self::create_upload_dir();

        // Store activation time
        update_option('mls_activated_at', current_time('mysql'));

        // Flush rewrite rules
        flush_rewrite_rules();
    }

    /**
     * Create database tables
     */
    public static function create_tables() {
        MLS_DB::create_tables();
        update_option('mls_db_version', MLS_DB_VERSION);
    }

    /**
     * Set default options
     */
    private static function set_defaults() {
        $defaults = array(
            'api_url' => defined('MLSGRID_API_URL') ? MLSGRID_API_URL : 'https://api.mlsgrid.com/v2',
            'originating_system' => 'northstar',
            'auto_sync_enabled' => false,
            'sync_interval' => 'hourly',
            'sync_media' => true,
        );

        $existing = get_option(MLS_Options::OPTION_KEY, array());
        $merged = wp_parse_args($existing, $defaults);
        update_option(MLS_Options::OPTION_KEY, $merged);
    }

    /**
     * Schedule cron events
     */
    private static function schedule_cron() {
        // Register custom cron intervals
        add_filter('cron_schedules', array(__CLASS__, 'add_cron_intervals'));

        // Only schedule if auto-sync is enabled
        $options = get_option(MLS_Options::OPTION_KEY, array());
        if (empty($options['auto_sync_enabled'])) {
            return;
        }

        $interval = !empty($options['sync_interval']) ? $options['sync_interval'] : 'hourly';

        if (!wp_next_scheduled('mls_sync_properties')) {
            wp_schedule_event(time(), $interval, 'mls_sync_properties');
        }

        if (!wp_next_scheduled('mls_sync_media')) {
            wp_schedule_event(time() + 1800, $interval, 'mls_sync_media');
        }
    }

    /**
     * Add custom cron intervals
     *
     * @param array $schedules Existing schedules
     * @return array Modified schedules
     */
    public static function add_cron_intervals($schedules) {
        $schedules['every_30_minutes'] = array(
            'interval' => 1800,
            'display' => 'Every 30 Minutes',
        );

        $schedules['every_2_hours'] = array(
            'interval' => 7200,
            'display' => 'Every 2 Hours',
        );

        $schedules['every_6_hours'] = array(
            'interval' => 21600,
            'display' => 'Every 6 Hours',
        );

        $schedules['every_12_hours'] = array(
            'interval' => 43200,
            'display' => 'Every 12 Hours',
        );

        return $schedules;
    }

    /**
     * Create upload directory for MLS media
     */
    private static function create_upload_dir() {
        $upload_dir = wp_upload_dir();
        $mls_dir = $upload_dir['basedir'] . '/mls-listings';

        if (!file_exists($mls_dir)) {
            wp_mkdir_p($mls_dir);

            // Create .htaccess to prevent directory listing
            $htaccess = $mls_dir . '/.htaccess';
            if (!file_exists($htaccess)) {
                file_put_contents($htaccess, "Options -Indexes\n");
            }

            // Create index.php for extra protection
            $index = $mls_dir . '/index.php';
            if (!file_exists($index)) {
                file_put_contents($index, "<?php\n// Silence is golden.\n");
            }
        }
    }
}