Add support for package payment methods and basic checkout proccess

backend/app/plugins/wiaas/includes/class-wiaas-package.php

@@ -0,0 +1,46 @@
+<?php
+
+class Wiaas_Package {
+
+	public static function init() {
+		require_once dirname( __FILE__ ) . '/package/class-wiaas-package-pricing.php';
+
+		add_filter('woocommerce_rest_prepare_product_object', array(__CLASS__, 'transform_rest_package'), 999, 3);
+	}
+
+	/**
+	 * Transform package json response with wiaas information
+	 * @param $response
+	 * @param $package
+	 * @param $request
+	 *
+	 * @return mixed
+	 */
+	public static function transform_rest_package($response, $package, $request) {
+		$data = $response->get_data();
+
+		$data = self::_append_package_prices($data, $package, $request);
+
+		$response->set_data($data);
+
+		return $response;
+	}
+
+	/**
+	 * Append configured package prices on package json response
+	 * @param $data
+	 * @param $package
+	 * @param $request
+	 *
+	 * @return mixed
+	 */
+	private static function _append_package_prices($data, $package, $request) {
+		$package_prices = array_values(Wiaas_Package_Pricing::get_package_prices($package));
+
+		$data['prices'] = $package_prices;
+
+		return $data;
+	}
+}
+
+Wiaas_Package::init();