<?php

namespace Bizdex\Uplisting;

use Bizdex\Uplisting\Admin\AdminManager;
use Bizdex\Uplisting\Admin\Bookings;
use Bizdex\Uplisting\Admin\PostTypes;
use Bizdex\Uplisting\Emails\EmailManager;
use Bizdex\Uplisting\Frontend\FrontendManager;
use Bizdex\Uplisting\Api\RestApi;
use Bizdex\Uplisting\Services\IntegrationService;
use Bizdex\Uplisting\Services\ReservationService;

defined('ABSPATH') || exit;

/**
 * Main plugin bootstrap (Advanced Connector for Uplisting).
 *
 * Singleton entry point loaded from `wp-uplisting-connector.php`.
 *
 * @package Bizdex\Uplisting\Core
 * @since   1.0.0
 */
class Plugin
{
    /**
     * Singleton instance.
     *
     * @var Plugin|null
     */
    private static $instance = null;

    /**
     * Get or create the plugin singleton.
     *
     * @return Plugin
     */
    public static function instance()
    {
        if (is_null(self::$instance)) {
            self::$instance = new self();
        }
        return self::$instance;
    }

    /**
     * Private constructor — use {@see instance()} or {@see bizdex_uplisting()}.
     */
    private function __construct()
    {
        bizdex_uplisting_migrate_legacy_options();
        bizdex_uplisting_clear_legacy_cron();
        $this->init_controllers();
        $this->init();
    }

    /**
     * Bootstrap runtime controllers (free scope: no Gutenberg blocks).
     *
     * @return void
     */
    private function init_controllers()
    {
        new PostTypes();
        ReservationService::instance();
        EmailManager::instance();
        RestApi::init();

        if (is_admin()) {
            new AdminManager();
            new Bookings();
        }

        FrontendManager::instance();
        new IntegrationService();
    }

    /**
     * Register late-binding WordPress hooks.
     *
     * @return void
     */
    private function init()
    {
        bizdex_uplisting_ensure_permalink_defaults();

        $stored_rewrite_version = get_option(BIZDEX_UPLISTING_REWRITE_VERSION, '');
        if ($stored_rewrite_version !== BIZDEX_UPLISTING_VERSION) {
            bizdex_uplisting_schedule_rewrite_flush();
        }
    }
}