<?php
/**
 * Main plugin bootstrap.
 *
 * @package WCUTP
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class WCUTP_Plugin {

	/**
	 * Singleton instance.
	 *
	 * @var WCUTP_Plugin|null
	 */
	private static $instance = null;

	/**
	 * Tier service.
	 *
	 * @var WCUTP_Tier_Service
	 */
	private $tier_service;
	/**
	 * Discount service.
	 *
	 * @var WCUTP_Discount_Service
	 */
	private $discount_service;
	/**
	 * Discount exclusion service.
	 *
	 * @var WCUTP_Discount_Exclusion_Service
	 */
	private $discount_exclusion_service;
	/**
	 * Access restriction service.
	 *
	 * @var WCUTP_Access_Restriction_Service
	 */
	private $access_restriction_service;
	/**
	 * Birthday coupon service.
	 *
	 * @var WCUTP_Birthday_Coupon_Service
	 */
	private $birthday_coupon_service;
	/**
	 * Campaign runtime service.
	 *
	 * @var WCUTP_Campaign_Service
	 */
	private $campaign_service;
	/**
	 * Privacy and GDPR compliance service.
	 *
	 * @var WCUTP_Privacy_Service
	 */
	private $privacy_service;
	/**
	 * Admin module.
	 *
	 * @var WCUTP_Admin|null
	 */
	private $admin;
	/**
	 * User admin service.
	 *
	 * @var WCUTP_User_Admin_Service|null
	 */
	private $user_admin_service;

	/**
	 * Get singleton instance.
	 *
	 * @return WCUTP_Plugin
	 */
	public static function instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}

		return self::$instance;
	}

	/**
	 * Constructor.
	 */
	private function __construct() {
		add_action( 'plugins_loaded', array( $this, 'init' ), 20 );
	}

	/**
	 * Initialize plugin modules.
	 *
	 * @return void
	 */
	public function init() {
		if ( ! WCUTP_Dependency_Checker::is_woocommerce_active() ) {
			add_action( 'admin_notices', array( 'WCUTP_Dependency_Checker', 'render_woocommerce_missing_notice' ) );
			return;
		}

		$this->tier_service = new WCUTP_Tier_Service();
		$this->tier_service->register_hooks();

		$this->discount_service = new WCUTP_Discount_Service();
		$this->discount_service->register_hooks();

		$this->discount_exclusion_service = new WCUTP_Discount_Exclusion_Service();
		$this->discount_exclusion_service->register_hooks();

		$this->access_restriction_service = new WCUTP_Access_Restriction_Service();
		$this->access_restriction_service->register_hooks();

		$this->birthday_coupon_service = new WCUTP_Birthday_Coupon_Service();
		$this->birthday_coupon_service->register_hooks();

		$this->campaign_service = new WCUTP_Campaign_Service();
		$this->campaign_service->register_hooks();

		$this->privacy_service = new WCUTP_Privacy_Service();
		$this->privacy_service->register_hooks();

		if ( is_admin() ) {
			$this->admin = new WCUTP_Admin();
			$this->admin->register_hooks();

			$this->user_admin_service = new WCUTP_User_Admin_Service();
			$this->user_admin_service->register_hooks();
		}
	}
}