<?php

/**
 * The payment functionality of the plugin.
 *
 * @link       https://makecommerce.net/
 * @since      3.0.0
 *
 * @package    Makecommerce
 * @subpackage Makecommerce/admin
 */

namespace MakeCommerce;

/**
 * The payment functionality of the plugin.
 *
 * Defines the plugin name, version, and two examples hooks for how to
 * enqueue the admin-specific stylesheet and JavaScript.
 *
 * @package    Makecommerce
 * @subpackage Makecommerce/payment
 * @author     Maksekeskus AS <support@maksekeskus.ee>
 */
class Payment {

	/**
	 * The ID of this plugin.
	 *
	 * @since    3.0.0
	 * @access   private
	 * @var      string    $plugin_name    The ID of this plugin.
	 */
	private $plugin_name;

	/**
	 * The version of this plugin.
	 *
	 * @since    3.0.0
	 * @access   private
	 * @var      string    $version    The current version of this plugin.
	 */
	private $version;

	private Loader $loader;

	/**
	 * Initialize the class and set its properties.
	 *
	 * @since    3.0.0
	 * @param    string    $plugin_name       The name of this plugin.
	 * @param    string    $version    The version of this plugin.
	 */
	public function __construct( $plugin_name, $version, Loader $loader ) {

		$this->plugin_name = $plugin_name;
		$this->version = $version;
		$this->loader = $loader;

		$this->loader->add_action( 'plugins_loaded', $this, 'initialize_payment_gateways' );
	}

	/**
	 * Initialize all payment gateways
	 * 
	 * @since 3.0.0
	 */
	public function initialize_payment_gateways() {

		//Simplecheckout
		if ( get_option( 'mk_checkout_sco', 'no' ) == "yes" ) {
			new Payment\Gateway\Simplecheckout();
		}

		//WooCommerce
		new Payment\Gateway\WooCommerce( true );
	}

	/**
	 * Returns price excluding taxes
	 * 
	 * @since 3.0.0
	 */
	public static function get_rate_without_taxes( $method, $rate ) {

		if ( empty( $rate[$method] ) ) {
			return 0;
		}

		$rate = $rate[$method];
		
		return $rate->cost;
	}
	
	/**
	 * Returns price including taxes
	 * 
	 * @since 3.0.0
	 */
	public static function get_rate_with_taxes( $method, $rate ) {

		if ( empty( $rate[$method] ) ) {
			return 0;
		}

		$rate = $rate[$method];
		$price = $rate->cost;

		if ( empty( $rate->taxes ) ) {
			return $price;
		}

		foreach ( $rate->taxes as $tax ) {
			$price += $tax;
		}

		return $price;
	}

	/**
	 * Update banklinks
	 * 
	 * @since 3.0.0
	 */
    public static function update_banklinks() {

		$obj = new Payment\Gateway\WooCommerce( true );

		$obj->mc_banklinks_reload( true );

	}

	/**
	 * Check payment and process order if completed, canceled
	 * 
	 * @since 3.0.0
	 */
	public static function check_payment() {

		global $woocommerce;

		$api = \MakeCommerce::get_api();

		//set the correct language
		if ( isset( $_GET["lang1"] ) ) {
			\MakeCommerce\i18n::switch_language( $_GET["lang1"] );
		}

		$returnUrl = home_url();
		
		$request = stripslashes_deep( $_POST );

		if ( $api->verifyMac( $request ) ) {

			$data = $api->extractRequestData( $request );
			$transactionId = false;
			$reference = false;

			if ( !empty( $data['error'] ) ) {

				wc_add_notice( __( 'Payment failed', 'wc_makecommerce_domain' ), 'error' );

				return $returnUrl;
			}

			if ( !empty( $data['message_type'] ) ) {

				if ( $data['message_type'] == 'payment_return' ) {

					$transactionId = $data['transaction'];
					$reference = $data['reference'];
					$paymentStatus = $data['status'];
				}

				if ( $data['message_type'] == 'token_return' ) {
					if ( !empty( $data['transaction']['reference'] ) ) {
						$reference = $data['transaction']['reference'];
					}

					$paymentStatus = $data['transaction']['status'];
					$transactionId = $data['transaction']['id'];
				}
			} 
		}

		// if we didn't find reference to an Order, we send user to shop landing-page. TODO: could be improved	
		if ( !$transactionId ) {
			return $returnUrl;
		}

		//get the post id using transactionid
		$orderId = self::get_postid_using_metakey( '_makecommerce_transaction_id', $transactionId );

		//still nothing. Lets try matching _order_number (SCO doesnt seem to have transaction id, transaction is created via SCO instead)
		if ( $orderId == null ) {
			$orderId = self::get_postid_using_metakey( '_order_number', $reference );
		}

		//try using reference as orderId
		if ( !$orderId ) {
			$orderId = $reference;
		}
		
		$order = new \WC_Order( $orderId );
		
		// if we didn't find the Order, we send user to shop landing-page. TODO: could be improved
		if ( !$order->get_id() ) {
			return $returnUrl;
		}

		$returnUrl = $order->get_checkout_order_received_url();

		if ( $paymentStatus == 'EXPIRED' || $paymentStatus == 'CANCELLED' || $paymentStatus == 'COMPLETED' ) {

			//get transaction to update the payment method.
			$transaction = $api->getTransaction( $transactionId );
			
			//make sure the payment method is the same for simplecheckout and normal version.
			$paymentMethod = "";
			if ( isset( $transaction->type ) && isset( $transaction->method ) ) {
				$paymentMethod = $transaction->channel;
			}

			//update _makecommerce_preselected_method 
			update_post_meta( $order->get_id(), '_makecommerce_preselected_method', $paymentMethod );
		}
		
		switch( $paymentStatus ) {

			case 'CANCELLED':
				$order->update_status( 'cancelled' );
				wc_add_notice( __( 'Payment transaction cancelled', 'wc_makecommerce_domain' ), 'error');
				$returnUrl = wc_get_cart_url();

				break;
			case 'EXPIRED':
				//only update if order status is pending payment
				if ( $order->get_status() == "pending" ) {

					$order->update_status( 'cancelled' );
					wc_add_notice( __( 'Payment transaction expired', 'wc_makecommerce_domain' ), 'error');
					$returnUrl = wc_get_cart_url();
				}

				break;
			case 'COMPLETED':
				$orderNote = array();
				$transactionIdText = __( 'Transaction ID', 'wc_makecommerce_domain' );
				$paymentOptionText = __( 'Payment option', 'wc_makecommerce_domain' );
				$transactionIdText = \MakeCommerce\i18n::get_string_from_mo( 'Transaction ID', 'wc_makecommerce_domain', \MakeCommerce\i18n::get_site_default_language() );
				$paymentOptionText = \MakeCommerce\i18n::get_string_from_mo( 'Payment option', 'wc_makecommerce_domain', \MakeCommerce\i18n::get_site_default_language() );

				$orderNote[] = $transactionIdText . ': <a target=_blank href="'.$api->getEnvUrls()->merchantUrl.'merchant/shop/deals/detail.html?id='. $transactionId .'">'.$transactionId.'</a>';
				$orderNote[] = $paymentOptionText . ': ' . get_post_meta( $order->get_id(), '_makecommerce_preselected_method', true );
				$order->add_order_note( implode( "\r\n", $orderNote ) );

				if ( !empty( $data['token'] ) && !empty( $data['token']['multiuse'] ) ) {

					update_post_meta( $order->get_id(), '_makecommerce_payment_token', $data['token']['id'] );
					update_post_meta( $order->get_id(), '_makecommerce_payment_token_valid_until', $data['token']['valid_until'] );
				}
				
				if ( isset( $_GET['lang1'] ) ) {
					$order->update_meta_data( 'wpml_language', $_GET["lang1"] );
				}

				$order->payment_complete( $transactionId );
				$woocommerce->cart->empty_cart();

				break;
		}

		return $returnUrl;
	}

	/**
	 * Returns post_id using transaction id or false if not found
	 * 
	 * @since 3.0.4
	 */
	public static function get_postid_using_metakey( $meta_key, $transactionId ) {
		
		global $wpdb;

		$wpdb->query("SELECT `post_id` FROM $wpdb->postmeta WHERE `meta_key` = '". $meta_key ."' AND `meta_value` = '" . $transactionId . "'");
 
		foreach ( $wpdb->last_result as $row ) {
			if ( isset( $row->post_id ) ) {
				return $row->post_id;
			}
		}

		return false;
	}
}