<?php

namespace AutomateWoo;

defined( 'ABSPATH' ) || exit;

/**
 * @class Trigger_Order_Status_Changes
 */
class Trigger_Order_Status_Changes extends Trigger_Abstract_Order_Status_Base {

	/**
	 * Method to set title, group, description and other admin props.
	 */
	public function load_admin_details() {
		parent::load_admin_details();
		$this->title       = __( 'Order Status Changes', 'automatewoo' );
		$this->description = __( 'Triggers after an order changes status occurs. Set the workflow to run on certain status changes with the trigger options.', 'automatewoo' );
	}

	/**
	 * Registers fields used for this trigger.
	 */
	public function load_fields() {

		$description = __( 'Select which order statuses will trigger this workflow. Leave blank for any status.', 'automatewoo' );

		$from = ( new Fields\Order_Status() )
			->set_title( __( 'Status changes from', 'automatewoo' ) )
			->set_name( 'order_status_from' )
			->set_description( $description )
			->set_multiple();

		$to = ( new Fields\Order_Status() )
			->set_title( __( 'Status changes to', 'automatewoo' ) )
			->set_name( 'order_status_to' )
			->set_description( $description )
			->set_multiple();

		$this->add_field( $from );
		$this->add_field( $to );

		parent::load_fields();
	}


	/**
	 * @param Workflow $workflow
	 *
	 * @return bool
	 */
	public function validate_workflow( $workflow ) {
		if ( ! parent::validate_workflow( $workflow ) ) {
			return false;
		}

		$order = $workflow->data_layer()->get_order();

		if ( ! $order ) {
			return false;
		}

		$order_status_from = $workflow->get_trigger_option( 'order_status_from' );
		$order_status_to   = $workflow->get_trigger_option( 'order_status_to' );

		$old_status = Temporary_Data::get( 'order_old_status', $order->get_id() );
		$new_status = Temporary_Data::get( 'order_new_status', $order->get_id() );

		if ( ! $this->validate_status_field( $order_status_from, $old_status ) ) {
			return false;
		}

		if ( ! $this->validate_status_field( $order_status_to, $new_status ) ) {
			return false;
		}

		return true;
	}


	/**
	 * Ensures 'to' status has not changed while sitting in queue
	 *
	 * @param Workflow $workflow
	 * @return bool
	 */
	public function validate_before_queued_event( $workflow ) {
		if ( ! parent::validate_before_queued_event( $workflow ) ) {
			return false;
		}

		$order = $workflow->data_layer()->get_order();

		if ( ! $order ) {
			return false;
		}

		// Option to validate order status
		if ( $workflow->get_trigger_option( 'validate_order_status_before_queued_run' ) ) {
			$order_status_to = $workflow->get_trigger_option( 'order_status_to' );

			if ( ! $this->validate_status_field( $order_status_to, $order->get_status() ) ) {
				return false;
			}
		}

		return true;
	}
}
