class EM_REGISTER {

	/**
	 * Integration code
	 * @var string
	 */
	public static $integration = 'EVENTSMANAGER';

	private $trigger_code;
	private $trigger_meta;

	/**
	 * Set up Automator trigger constructor.
	 */
	public function __construct() {
		$this->trigger_code = 'SELECTEDEVENT';
		$this->trigger_meta = 'EMEVENTS';
		$this->define_trigger();
	}

	/**
	 * Define and register the trigger by pushing it into the Automator object
	 */
	public function define_trigger() {



		$trigger = array(
			'author'              => Automator()->get_author_name( $this->trigger_code ),
			'support_link'        => Automator()->get_author_support_link( $this->trigger_code, 'integration/events-manager/' ),
			'integration'         => self::$integration,
			'code'                => $this->trigger_code,
			/* translators: Logged-in trigger - The Events Manager */
			'sentence'            => sprintf( __( 'A user registers for {{an event:%1$s}}', 'uncanny-automator' ), $this->trigger_meta ),
			/* translators: Logged-in trigger - The Events Manager */
			'select_option_name'  => __( 'A user registers for {{an event}}', 'uncanny-automator-pro' ),
			'action'              => 'em_booking_set_status',
			'priority'            => 99,
			'accepted_args'       => 2,
			'validation_function' => array( $this, 'user_registered_for_event' ),
			'options'             => [
				Automator()->helpers->recipe->events_manager->options->all_em_events(
					__( 'Event', 'uncanny-automator-pro' ),
					$this->trigger_meta,
					[ 'any_option' => true ] ),
			],
		);

		Automator()->register->trigger( $trigger );

		return;
	}

	/**
	 * @param $em_status
	 * @param $em_booking_obj
	 *
	 * @return mixed
	 */
	public function user_registered_for_event( $em_status, $em_booking_obj ) {


		if ( 0 === (int) get_option( 'dbem_bookings_approval', 0 ) || $em_booking_obj->get_status() != 'Approved' ) {
			return $em_status;
		}

		$em_event_id        = $em_booking_obj->event_id;
		$user_id            = $em_booking_obj->person_id;
		$recipes            = Automator()->get->recipes_from_trigger_code( $this->trigger_code );
		$required_event     = Automator()->get->meta_from_recipes( $recipes, $this->trigger_meta );
		$matched_recipe_ids = array();

		foreach ( $recipes as $recipe_id => $recipe ) {
			foreach ( $recipe['triggers'] as $trigger ) {
				$trigger_id = $trigger['ID'];//return early for all products
				if ( isset( $required_event[ $recipe_id ][ $trigger_id ] ) ) {
					if ( $required_event[ $recipe_id ][ $trigger_id ] == $em_event_id || $required_event[ $recipe_id ][ $trigger_id ] == '-1' ) {
						$matched_recipe_ids[] = [
							'recipe_id'  => $recipe_id,
							'trigger_id' => $trigger_id,
						];
					}
				}
			}
		}

		if ( ! empty( $matched_recipe_ids ) ) {
			foreach ( $matched_recipe_ids as $matched_recipe_id ) {
				$pass_args = [
					'code'             => $this->trigger_code,
					'meta'             => $this->trigger_meta,
					'user_id'          => $user_id,
					'recipe_to_match'  => $matched_recipe_id['recipe_id'],
					'trigger_to_match' => $matched_recipe_id['trigger_id'],
					'ignore_post_id'   => true,
				];

				$args = Automator()->maybe_add_trigger_entry( $pass_args, false );

				if ( $args ) {
					foreach ( $args as $result ) {
						if ( true === $result['result'] ) {
							Automator()->maybe_trigger_complete( $result['args'] );
						}
					}
				}
			}

		}

		return $em_status;
	}
}