<?php
/**
 * Amazing Fullfilment Integration for WooCommerce - event handler class
 *
 * @author dejo-commerce
 * @copyright Copyright (c) 2017 dejo-commerce (https://www.dejo-commerce.com)
 * @license http://www.gnu.org/licenses/gpl-2.0.html
 */
class AmzFulfillment_EventHandler {
	private $options;

	/**
	 * Constructor
	 */
	public function __construct() {
		$this->options = new AmzFulfillment_Options();
	}

	/**
	 * createEvent
	 * 
	 * @param string $event
	 * @param int $orderId
	 */
	public function createEvent($event, $orderId) {
		if(!AmzFulfillment_Core::instance()->getWooCommerce()->existOrder($orderId)) {
			return;
		}
		if(!array_key_exists($event, AmzFulfillment_Event::$events)) {
			$message = sprintf('Event with invalid event id: %s', $event);
			AmzFulfillment_Core::instance()->getLog()->add($message);
			AmzFulfillment_Core::debug($message);
			return;
		}
		$eventName = AmzFulfillment_Event::$events[$event]['name'];
		$eventGroup = AmzFulfillment_Event::$events[$event]['group'];
		$message = sprintf('Order %d status update: %s', $orderId, $eventName);
		AmzFulfillment_Core::instance()->getLog()->add($message);
		if(!AmzFulfillment_Core::instance()->getFeature()->hasPro()) {
			return;
		}
		$this->options->load();
		if(!$this->options->getAutomation()) {
			return;
		}
		if($eventGroup != 'WooCommerce') {
			AmzFulfillment_Core::instance()->getWooCommerce()->addNote($orderId, $eventGroup . ': ' . $eventName);
		}
		foreach($this->getActions($event) as $action) {
			$this->doAction($action, $orderId, $eventName);
		}
	}

	/**
	 * getActions
	 * 
	 * @param string $event
	 * @return string[]
	 */
	private function getActions($event) {
		$rules = new AmzFulfillment_Rules();
		$rules->load();
		return $rules->getActions($event);
	}

	/**
	 * doAction
	 * 
	 * @param string $action
	 * @param int $orderId
	 */
	private function doAction($action, $orderId, $eventName) {
		if(!array_key_exists($action, AmzFulfillment_Action::$actions)) {
			$message = sprintf("Rule with invalid action '%s'", $action);
			AmzFulfillment_Core::instance()->getLog()->add($message);
			AmzFulfillment_Core::debug($message);
			return;
		}
		if(!AmzFulfillment_Core::instance()->getWooCommerce()->existOrder($orderId)) {
			return;
		}
		$actionName = AmzFulfillment_Action::$actions[$action]['name'];
		try {
			switch($action) {
			case AmzFulfillment_Action::WOOCOMMERCE_ORDER_PENDING:
				AmzFulfillment_Core::instance()->getWooCommerce()->setStatus($orderId, AmzFulfillment_WooCommerceStatus::PENDING);
				break;
			case AmzFulfillment_Action::WOOCOMMERCE_ORDER_PROCESSING:
				AmzFulfillment_Core::instance()->getWooCommerce()->setStatus($orderId, AmzFulfillment_WooCommerceStatus::PROCESSING);
				break;
			case AmzFulfillment_Action::WOOCOMMERCE_ORDER_ONHOLD:
				AmzFulfillment_Core::instance()->getWooCommerce()->setStatus($orderId, AmzFulfillment_WooCommerceStatus::ONHOLD);
				break;
			case AmzFulfillment_Action::WOOCOMMERCE_ORDER_COMPLETED:
				AmzFulfillment_Core::instance()->getWooCommerce()->setStatus($orderId, AmzFulfillment_WooCommerceStatus::COMPLETED);
				break;
			case AmzFulfillment_Action::WOOCOMMERCE_ORDER_CANCELLED:
				AmzFulfillment_Core::instance()->getWooCommerce()->setStatus($orderId, AmzFulfillment_WooCommerceStatus::CANCELLED);
				break;
			case AmzFulfillment_Action::WOOCOMMERCE_ORDER_REFUNDED:
				AmzFulfillment_Core::instance()->getWooCommerce()->setStatus($orderId, AmzFulfillment_WooCommerceStatus::REFOUNDED);
				break;
			case AmzFulfillment_Action::WOOCOMMERCE_ORDER_FAILED:
				AmzFulfillment_Core::instance()->getWooCommerce()->setStatus($orderId, AmzFulfillment_WooCommerceStatus::FAILED);
				break;
			case AmzFulfillment_Action::AMAZON_FULFILLMENT_CREATE:
				AmzFulfillment_Core::instance()->doAmazonFulfillment($orderId);
				break;
			case AmzFulfillment_Action::AMAZON_FULFILLMENT_CANCEL:
				AmzFulfillment_Core::instance()->cancelAmazonFulfillment($orderId);
				break;
			case AmzFulfillment_Action::MAIL_NOTIFY:
				AmzFulfillment_Core::instance()->sendNotification('Order has changed', sprintf('Order %d has changed: %s', $orderId, $eventName));
				break;
			}
			AmzFulfillment_Core::instance()->getLog()->add(sprintf("Triggered action '%s' for order %d", $actionName, $orderId));
		} catch(Exception $e) {
			$message = sprintf("Error while executing action '%s' for order %d. Error: %s", $actionName, $orderId, $e->getMessage());
			AmzFulfillment_Core::instance()->getLog()->add($message);
			AmzFulfillment_Core::debug($message);
		}
	}
}