<?php
/**
 * Core plugin bootstrapper.
 *
 * @package AarambhaCaseManagement
 */

namespace AarambhaCaseManagement\Core;

use AarambhaCaseManagement\Admin\Admin;
use AarambhaCaseManagement\Frontend\Frontend;

defined( 'ABSPATH' ) || exit;

/**
 * Singleton plugin bootstrapper: wires up the loader, admin, and frontend.
 */
class Plugin {

	/**
	 * Hook loader.
	 *
	 * @var Loader
	 */
	private Loader $loader;

	/**
	 * Admin controller.
	 *
	 * @var Admin
	 */
	private Admin $admin;

	/**
	 * Frontend controller.
	 *
	 * @var Frontend
	 */
	private Frontend $frontend;

	/**
	 * Plugin instance.
	 *
	 * @var Plugin|null
	 */
	private static ?Plugin $instance = null;

	/**
	 * Get singleton instance.
	 */
	public static function instance(): Plugin {

		if ( null === self::$instance ) {
			self::$instance = new self();
		}

		return self::$instance;
	}

	/**
	 * Constructor.
	 *
	 * Note: instance() is expected to be called from within a
	 * 'plugins_loaded' callback (see aarambha-case-management.php), so
	 * initialization happens directly rather than deferring to another
	 * 'plugins_loaded' hook registration here.
	 */
	private function __construct() {
		$this->init();
	}

	/**
	 * Initialize plugin.
	 */
	public function init(): void {
		$this->loader = new Loader();

		$this->admin    = new Admin( $this->loader );
		$this->frontend = new Frontend( $this->loader );

		$this->loader->run();
	}
}