<?php
/**
 * Plugin Name: DHL for WooCommerce
 * Plugin URI: https://github.com/shadimanna/dhl-logistic-services-for-woocommerce
 * Description: WooCommerce integration for DHL eCommerce, DHL Paket, DHL Parcel Europe (Benelux and Iberia) and Deutsche Post International
 * Author: DHL
 * Author URI: http://dhl.com/woocommerce
 * Version: 2.5.3
 * WC requires at least: 3.0
 * WC tested up to: 4.5
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

if ( ! class_exists( 'PR_DHL_WC' ) ) :

class PR_DHL_WC {

	private $version = "2.5.3";

	/**
	 * Instance to call certain functions globally within the plugin
	 *
	 * @var PR_DHL_WC
	 */
	protected static $_instance = null;
	
	/**
	 * DHL Shipping Order for label and tracking.
	 *
	 * @var PR_DHL_WC_Order
	 */
	public $shipping_dhl_order = null;

	/**
	 * DHL Shipping Front-end for DHL Paket
	 *
	 * @var PR_DHL_Paket_Front_End
	 */
	protected $shipping_dhl_frontend = null;
	
	/**
	 * DHL Shipping Order for label and tracking.
	 *
	 * @var PR_DHL_WC_Product
	 */
	protected $shipping_dhl_product = null;

	/**
	 * DHL Shipping Notice for user optin
	 *
	 * @var PR_DHL_WC_Notice
	 */
	protected $shipping_dhl_notice = null;

	/**
	 * DHL Shipping Order for label and tracking.
	 *
	 * @var PR_DHL_Logger
	 */
	protected $logger = null;

	private $payment_gateway_titles = array();

	protected $base_country_code = '';

	// 'LI', 'CH', 'NO'
	protected $eu_iso2 = array( 'AT', 'BE', 'BG', 'HR', 'CY', 'CZ', 'DK', 'EE', 'FI', 'FR', 'DE', 'GR', 'HU', 'IE', 'IT', 'LV', 'LT', 'LU', 'MT', 'NL', 'PL', 'PT', 'RO', 'SI', 'SK', 'ES', 'SE');

	// These are all considered domestic by DHL
	protected $us_territories = array( 'US', 'GU', 'AS', 'PR', 'UM', 'VI' );
		
	/**
	* Construct the plugin.
	*/
	public function __construct() {
		// add_action( 'init', array( $this, 'init' ) );
		// add_action( 'plugins_loaded', array( $this, 'init' ) );
        add_action( 'init', array( $this, 'load_plugin' ), 0 );
    }

	/**
	 * Main WooCommerce Shipping DHL Instance.
	 *
	 * Ensures only one instance is loaded or can be loaded.
	 *
	 * @static
	 * @see PR_DHL()
	 * @return self Main instance.
	 */
	public static function instance() {
		if ( is_null( self::$_instance ) ) {
			self::$_instance = new self();
		}
		return self::$_instance;
	}

	/**
	 * Define WC Constants.
	 */
	private function define_constants() {
		$upload_dir = wp_upload_dir();

		// Path related defines
		$this->define( 'PR_DHL_PLUGIN_FILE', __FILE__ );
		$this->define( 'PR_DHL_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );
		$this->define( 'PR_DHL_PLUGIN_DIR_PATH', untrailingslashit( plugin_dir_path( __FILE__ ) ) );
		$this->define( 'PR_DHL_PLUGIN_DIR_URL', untrailingslashit( plugins_url( '/', __FILE__ ) ) );

		$this->define( 'PR_DHL_VERSION', $this->version );

		$this->define( 'PR_DHL_LOG_DIR', $upload_dir['basedir'] . '/wc-logs/' );

		// DHL specific URLs
		$this->define( 'PR_DHL_BUTTON_TEST_CONNECTION', __( 'Test Connection', 'pr-shipping-dhl' ) );

		// DHL eCommerce
		$this->define( 'PR_DHL_REST_AUTH_URL', 'https://api.dhlecommerce.com' );
		$this->define( 'PR_DHL_REST_AUTH_URL_QA', 'https://api-qa.dhlecommerce.com' );
		$this->define( 'PR_DHL_ECOMM_TRACKING_URL', 'https://webtrack.dhlglobalmail.com/?trackingnumber=' );

		// DHL eCS Asia tracking link. Sandbox => https://preprod2.dhlecommerce.dhl.com/track/?ref=
		$this->define( 'PR_DHL_ECS_ASIA_SANDBOX_TRACKING_URL', 'https://sandbox.dhlecommerce.dhl.com/track/?locale=en&ref=' );
		$this->define( 'PR_DHL_ECS_ASIA_TRACKING_URL', 'https://ecommerceportal.dhl.com/track/?ref=' );

		// DHL Paket
		$this->define( 'PR_DHL_CIG_USR', 'dhl_woocommerce_plugin_2_1' );
		$this->define( 'PR_DHL_CIG_PWD', 'Iw4zil3jFJTOXHA6AuWP4ykGkXKLee' );
		$this->define( 'PR_DHL_CIG_AUTH', 'https://cig.dhl.de/services/production/soap' );

		// To use Sandbox, define 'PR_DHL_SANDBOX' to be 'true' and set 'PR_DHL_CIG_USR_QA' and 'PR_DHL_CIG_PWD_QA' outside this plugin
		$this->define( 'PR_DHL_CIG_AUTH_QA', 'https://cig.dhl.de/services/sandbox/soap' );

		$this->define( 'PR_DHL_PAKET_TRACKING_URL', 'https://nolp.dhl.de/nextt-online-public/report_popup.jsp?idc=' );
		$this->define( 'PR_DHL_PAKET_BUSSINESS_PORTAL', 'https://www.dhl-geschaeftskundenportal.de' );
		$this->define( 'PR_DHL_PAKET_DEVELOPER_PORTAL', 'https://entwickler.dhl.de/' );

		$this->define( 'PR_DHL_PACKSTATION', __('Packstation ', 'pr-shipping-dhl') );
		$this->define( 'PR_DHL_PARCELSHOP', __('Postfiliale ', 'pr-shipping-dhl') );
		$this->define( 'PR_DHL_POST_OFFICE', __('Postfiliale ', 'pr-shipping-dhl') );
	}
	
	/**
	 * Include required core files used in admin and on the frontend.
	 */
	public function includes() {
		// Auto loader class
		include_once( 'includes/class-pr-dhl-autoloader.php' );
		// Load abstract classes
		include_once( 'includes/abstract-pr-dhl-wc-order.php' );
		include_once( 'includes/abstract-pr-dhl-wc-product.php' );
		
		// Composer autoloader
		include_once( 'vendor/autoload.php' );
	}

	/**
	* Determine which plugin to load.
	*/
	public function load_plugin() {
		// Checks if WooCommerce is installed.
		if ( class_exists( 'WC_Shipping_Method' ) ) {
			$this->base_country_code = $this->get_base_country();

			// Load plugin except for DHL Parcel countries
			$dhl_parcel_countries = array('NL', 'BE', 'LU');

			if (!in_array($this->base_country_code, $dhl_parcel_countries) || apply_filters('pr_shipping_dhl_bypass_load_plugin', false)) {
				$this->define_constants();
				$this->includes();
				$this->init_hooks();
			}
		} else {
			// Throw an admin error informing the user this plugin needs WooCommerce to function
			add_action( 'admin_notices', array( $this, 'notice_wc_required' ) );
		}

	}

    /**
     * Initialize the plugin.
     */
    public function init() {
        add_action( 'admin_notices', array( $this, 'environment_check' ) );

        $this->get_pr_dhl_wc_product();
        $this->get_pr_dhl_wc_order();
    }

    public function init_hooks() {
        add_action( 'init', array( $this, 'init' ), 1 );
        add_action( 'init', array( $this, 'load_textdomain' ) );
        add_action( 'init', array( $this, 'set_payment_gateways' ) );

        add_action( 'admin_enqueue_scripts', array( $this, 'dhl_enqueue_scripts') );

        add_action( 'woocommerce_shipping_init', array( $this, 'includes' ) );
        add_filter( 'woocommerce_shipping_methods', array( $this, 'add_shipping_method' ) );
        // Test connection
        add_action( 'wp_ajax_test_dhl_connection', array( $this, 'test_dhl_connection_callback' ) );
        // Add state field for 'VN'
        add_filter( 'woocommerce_states', array( $this, 'add_vn_states' ) );
    }
	
	public function get_pr_dhl_wc_order() {
		if ( ! isset( $this->shipping_dhl_order ) ){
			try {
				$dhl_obj = $this->get_dhl_factory();
				
				if( $dhl_obj->is_dhl_paket() ) {
					$this->shipping_dhl_order = new PR_DHL_WC_Order_Paket();
					$this->shipping_dhl_frontend = new PR_DHL_Front_End_Paket();
				} elseif( $dhl_obj->is_dhl_ecs_asia() ) {
					$this->shipping_dhl_order = new PR_DHL_WC_Order_eCS_Asia();
					// $this->shipping_dhl_notice = new PR_DHL_WC_Notice();
				} elseif( $dhl_obj->is_dhl_ecomm() ) {
					$this->shipping_dhl_order = new PR_DHL_WC_Order_Ecomm();
					// $this->shipping_dhl_notice = new PR_DHL_WC_Notice();
				} elseif ( $dhl_obj->is_dhl_deutsche_post() ) {
				    $this->shipping_dhl_order = new PR_DHL_WC_Order_Deutsche_Post();
                }
				
				// Ensure DHL Labels folder exists
				$this->dhl_label_folder_check();
			} catch (Exception $e) {
				add_action( 'admin_notices', array( $this, 'environment_check' ) );
			}
		}

		return $this->shipping_dhl_order;
	}

	public function get_pr_dhl_wc_product() {
		if ( ! isset( $this->shipping_dhl_product ) ){
			try {
				$dhl_obj = $this->get_dhl_factory();
				
				if( $dhl_obj->is_dhl_paket() ) {
					$this->shipping_dhl_product = new PR_DHL_WC_Product_Paket();
				} elseif( $dhl_obj->is_dhl_ecs_asia() ) {
					$this->shipping_dhl_product = new PR_DHL_WC_Product_eCS_Asia();
				} elseif( $dhl_obj->is_dhl_ecomm() ) {
					$this->shipping_dhl_product = new PR_DHL_WC_Product_Ecomm();
				}elseif( $dhl_obj->is_dhl_deutsche_post() ){
					$this->shipping_dhl_product = new PR_DHL_WC_Product_Deutsche_Post();
				}
				
			} catch (Exception $e) {
				add_action( 'admin_notices', array( $this, 'environment_check' ) );
			}
		}

		return $this->shipping_dhl_product;
	}

	/**
	 * Localisation
	 */
	public function load_textdomain() {
		load_plugin_textdomain( 'pr-shipping-dhl', false, dirname( plugin_basename(__FILE__) ) . '/lang/' );
	}

	public function dhl_enqueue_scripts() {
		// Enqueue Styles
		wp_enqueue_style( 'wc-shipment-dhl-label-css', PR_DHL_PLUGIN_DIR_URL . '/assets/css/pr-dhl-admin.css' );

		// Enqueue Scripts		
        $screen    = get_current_screen();
        $screen_id = $screen ? $screen->id : '';

        if ( 'woocommerce_page_wc-settings' === $screen_id ) {

            $test_con_data = array(
                'ajax_url'       => admin_url( 'admin-ajax.php' ),
                'loader_image'   => admin_url( 'images/loading.gif' ),
                'test_con_nonce' => wp_create_nonce( 'pr-dhl-test-con' ),
            );

			if( isset( $_GET['section'] ) && $_GET['section'] == 'pr_dhl_paket' ){

				wp_enqueue_script(
					'wc-shipment-dhl-paket-settings-js',
					PR_DHL_PLUGIN_DIR_URL . '/assets/js/pr-dhl-paket-settings.js',
					array( 'jquery' ),
					PR_DHL_VERSION
				);
				// wp_localize_script( 'wc-shipment-dhl-paket-settings-js', 'dhl_paket_settings_obj', PR_DHL_WC_Method_Paket::sandbox_info() );
			}
			
            wp_enqueue_script(
                'wc-shipment-dhl-testcon-js',
                PR_DHL_PLUGIN_DIR_URL . '/assets/js/pr-dhl-test-connection.js',
                array( 'jquery' ),
                PR_DHL_VERSION
            );
            wp_localize_script( 'wc-shipment-dhl-testcon-js', 'dhl_test_con_obj', $test_con_data );
        }

	}

	/**
	 * Include required core files used in admin and on the frontend.
	 */
	/*
	public function include_shipping() {
		// Auto loader class
		include_once( 'includes/class-pr-dhl-ecomm-wc-method.php' );
	}*/

	/**
	 * Define constant if not already set.
	 *
	 * @param  string $name
	 * @param  string|bool $value
	 */
	public function define( $name, $value ) {
		if ( ! defined( $name ) ) {
			define( $name, $value );
		}
	}

	/**
	 * Add a new integration to WooCommerce.
	 */
	public function add_shipping_method( $shipping_method ) {
		// Check country somehow
		try {
			$dhl_obj = $this->get_dhl_factory();
			
			if( $dhl_obj->is_dhl_paket() ) {
				$pr_dhl_ship_meth = 'PR_DHL_WC_Method_Paket';
				$shipping_method['pr_dhl_paket'] = $pr_dhl_ship_meth;
			} elseif( $dhl_obj->is_dhl_ecs_asia() ) {
				$pr_dhl_ship_meth = 'PR_DHL_WC_Method_eCS_Asia';
				$shipping_method['pr_dhl_ecs'] = $pr_dhl_ship_meth;
			} elseif( $dhl_obj->is_dhl_ecomm() ) {
				$pr_dhl_ship_meth = 'PR_DHL_WC_Method_Ecomm';
				$shipping_method['pr_dhl_ecomm'] = $pr_dhl_ship_meth;
			} elseif( $dhl_obj->is_dhl_deutsche_post() ) {
				$pr_dhl_ship_meth = 'PR_DHL_WC_Method_Deutsche_Post';
				$shipping_method['pr_dhl_dp'] = $pr_dhl_ship_meth;
			}

		} catch (Exception $e) {
			// do nothing
		}

		return $shipping_method;
	}

	/**
	 * Admin error notifying user that WC is required
	 */
	public function notice_wc_required() {
	?>
		<div class="error">
			<p><?php _e( 'WooCommerce DHL Integration requires WooCommerce to be installed and activated!', 'pr-shipping-dhl' ); ?></p>
		</div>
	<?php
	}

	/**
	 * environment_check function.
	 */
	public function environment_check() {
		// Try to get the DHL object...if exception if thrown display to user, mainly to check country support.
		try {
			$this->get_dhl_factory();
		} catch (Exception $e) {
			echo '<div class="error"><p>' . $e->getMessage() . '</p></div>';
		}
	}

	public function get_base_country() {
		$country_code = wc_get_base_location();
		return apply_filters( 'pr_shipping_dhl_base_country', $country_code['country'] );
	}

	/**
	 * Create a DHL object from the factory based on country.
	 */
	public function get_dhl_factory() {

		$base_country_code = $this->get_base_country();
		// $shipping_dhl_settings = $this->get_shipping_dhl_settings();
		// $client_id = isset( $shipping_dhl_settings['dhl_api_key'] ) ? $shipping_dhl_settings['dhl_api_key'] : '';
		// $client_secret = isset( $shipping_dhl_settings['dhl_api_secret'] ) ? $shipping_dhl_settings['dhl_api_secret'] : '';
		
		try {	
			$dhl_obj = PR_DHL_API_Factory::make_dhl( $base_country_code );		
		} catch (Exception $e) {
			throw $e;
		}

		return $dhl_obj;
	}

	public function get_api_url() {

		try {

			$dhl_obj = $this->get_dhl_factory();
			
			if( $dhl_obj->is_dhl_paket() ) {

				$shipping_dhl_settings 	= $this->get_shipping_dhl_settings();
				$dhl_sandbox 			= isset( $shipping_dhl_settings['dhl_sandbox'] ) ? $shipping_dhl_settings['dhl_sandbox'] : '';
				if ( $dhl_sandbox == 'yes' || ( defined( 'PR_DHL_SANDBOX' ) && PR_DHL_SANDBOX ) ) {
					
					$user = defined( 'PR_DHL_CIG_USR_QA' )? PR_DHL_CIG_USR_QA : '';
					$user = !empty( $shipping_dhl_settings['dhl_api_sandbox_user'] )? $shipping_dhl_settings['dhl_api_sandbox_user'] : $user;
					
					$pass = defined( 'PR_DHL_CIG_PWD_QA' )? PR_DHL_CIG_PWD_QA : '';
					$pass = !empty( $shipping_dhl_settings['dhl_api_sandbox_pwd'] )? $shipping_dhl_settings['dhl_api_sandbox_pwd'] : $pass;

					$api_cred['user'] = $user;
					$api_cred['password'] = $pass;
					$api_cred['auth_url'] = PR_DHL_CIG_AUTH_QA;
				} else {
					$api_cred['user'] = PR_DHL_CIG_USR;
					$api_cred['password'] = PR_DHL_CIG_PWD;
					$api_cred['auth_url'] = PR_DHL_CIG_AUTH;
				}

				return $api_cred;

			} elseif( $dhl_obj->is_dhl_ecs_asia() ) {

				return $dhl_obj->get_api_url();
				
            } elseif( $dhl_obj->is_dhl_ecomm() ) {

				$shipping_dhl_settings = $this->get_shipping_dhl_settings();
				$dhl_sandbox = isset( $shipping_dhl_settings['dhl_sandbox'] ) ? $shipping_dhl_settings['dhl_sandbox'] : '';

				if ( $dhl_sandbox == 'yes' ) {
					return PR_DHL_REST_AUTH_URL_QA;
				} else {
					return PR_DHL_REST_AUTH_URL;
				}

			} elseif( $dhl_obj->is_dhl_deutsche_post() ) {
			    return $dhl_obj->get_api_url();
            }
			
			
		} catch (Exception $e) {
			throw new Exception('Cannot get DHL api credentials!');			
		}
	}

	public function get_shipping_dhl_settings( ) {
		$dhl_settings = array();

		try {
			$dhl_obj = $this->get_dhl_factory();
			
			if( $dhl_obj->is_dhl_paket() ) {
				$dhl_settings = $dhl_obj->get_settings();
			} elseif( $dhl_obj->is_dhl_ecomm() ) {
				$dhl_settings = get_option('woocommerce_pr_dhl_ecomm_settings');
			} elseif ( $dhl_obj->is_dhl_ecs_asia() ) {
			    $dhl_settings = $dhl_obj->get_settings();
            } elseif ( $dhl_obj->is_dhl_deutsche_post() ) {
			    $dhl_settings = $dhl_obj->get_settings();
            }

		} catch (Exception $e) {
			throw $e;
		}

		return $dhl_settings;
	}

	public function test_dhl_connection_callback() {
		check_ajax_referer( 'pr-dhl-test-con', 'test_con_nonce' );
		try {

			$shipping_dhl_settings = $this->get_shipping_dhl_settings();
			
			$dhl_obj = $this->get_dhl_factory();

			if( $dhl_obj->is_dhl_paket() ) {
				$api_user = $shipping_dhl_settings['dhl_api_user']; 
				$api_pwd = $shipping_dhl_settings['dhl_api_pwd'];
			} elseif( $dhl_obj->is_dhl_ecs_asia() ) {
				list($api_user, $api_pwd) = $dhl_obj->get_api_creds();
			} elseif( $dhl_obj->is_dhl_ecomm() ) {
				$api_user = $shipping_dhl_settings['dhl_api_key'];
				$api_pwd = $shipping_dhl_settings['dhl_api_secret'];
			} elseif( $dhl_obj->is_dhl_deutsche_post() ) {
			    list($api_user, $api_pwd) = $dhl_obj->get_api_creds();
			} else {
				throw new Exception( __('Country not supported', 'pr-shipping-dhl') );
				
			}

			$connection = $dhl_obj->dhl_test_connection( $api_user, $api_pwd );
				
			$connection_msg = __('Connection Successful!', 'pr-shipping-dhl');
			$this->log_msg( $connection_msg );

			wp_send_json( array( 
				'connection_success' 	=> $connection_msg,
				'button_txt'			=> PR_DHL_BUTTON_TEST_CONNECTION
				) );

		} catch (Exception $e) {
			$this->log_msg($e->getMessage());

			wp_send_json( array( 
				'connection_error' => sprintf( __('Connection Failed: %s Make sure to save the settings before testing the connection. ', 'pr-shipping-dhl'), $e->getMessage() ),
				'button_txt'			=> PR_DHL_BUTTON_TEST_CONNECTION
				 ) );
		}

		wp_die();
	}

	public function log_msg( $msg )	{

		try {
			$shipping_dhl_settings = $this->get_shipping_dhl_settings();
			$dhl_debug = isset( $shipping_dhl_settings['dhl_debug'] ) ? $shipping_dhl_settings['dhl_debug'] : 'yes';
			
			if( ! $this->logger ) {
				$this->logger = new PR_DHL_Logger( $dhl_debug );
			}

			$this->logger->write( $msg );
			
		} catch (Exception $e) {
			// do nothing
		}
	}

	public function get_log_url( )	{

		try {
			$shipping_dhl_settings = $this->get_shipping_dhl_settings();
			$dhl_debug = isset( $shipping_dhl_settings['dhl_debug'] ) ? $shipping_dhl_settings['dhl_debug'] : 'yes';
			
			if( ! $this->logger ) {
				$this->logger = new PR_DHL_Logger( $dhl_debug );
			}
			
			return $this->logger->get_log_url( );
			
		} catch (Exception $e) {
			throw $e;
		}
	}

	public function generate_barcode( $text, $size = 60 ) {

		if ( empty( $text ) ) {
			return '';
		}

		ob_start();
		echo '<img src="'.plugin_dir_url(__FILE__).'lib/barcode.php?text='.$text.'&size='.$size.'" alt="barcode"/>';
		$view = ob_get_clean();
	    return $view;
	}

	public function get_dhl_preferred_day_time( $postcode ) {

		try {

		  $shipping_dhl_settings = $this->get_shipping_dhl_settings();
		  $dhl_obj = $this->get_dhl_factory();

		} catch (Exception $e) {
		    return;
		}

		if( ! $dhl_obj->is_dhl_paket() ) {
		  return;
		}

		if ( ! isset( $shipping_dhl_settings['dhl_account_num'] ) ) {
			return;
		}

		$exclusion_work_day = array( );
		$work_days = array(
		            'Mon' => 'mon', 
		            'Tue' => 'tue',
		            'Wed' => 'wed',
		            'Thu' => 'thu',
		            'Fri' => 'fri',
		            'Sat' => 'sat');

		foreach ($work_days as $key => $value) {
			$exclusion_day = 'dhl_preferred_exclusion_' . $value;

			if( isset($shipping_dhl_settings[ $exclusion_day ]) && $shipping_dhl_settings[ $exclusion_day ] == 'yes' ) {
			  $exclusion_work_day[ $key ] = $value;
			}
		}

		$cutoff_time = '12';
		if( ! empty( $shipping_dhl_settings[ 'dhl_preferred_day_cutoff' ] ) ) {
			$cutoff_time = $shipping_dhl_settings[ 'dhl_preferred_day_cutoff' ];
		}

		return $dhl_obj->get_dhl_preferred_day_time( $postcode, $shipping_dhl_settings['dhl_account_num'], $cutoff_time, $exclusion_work_day );
	}

	public function set_payment_gateways() {
		try {
			$dhl_obj = $this->get_dhl_factory();
					
			if( $dhl_obj->is_dhl_paket() ) {
				$wc_payment_gateways = WC()->payment_gateways()->payment_gateways();

				foreach ($wc_payment_gateways as $key => $gateway) {
					$this->payment_gateway_titles[ $key ] = $gateway->get_method_title();
				}
			}
		} catch (Exception $e) {
			add_action( 'admin_notices', array( $this, 'environment_check' ) );
		}
	}

	public function get_payment_gateways( ) {
		return $this->payment_gateway_titles;
	}

	/**
	 * Function return whether the sender and receiver country is the same territory
	 */
	public function is_shipping_domestic( $country_receiver ) {   	 

		// If base is US territory
		if( in_array( $this->base_country_code, $this->us_territories ) ) {
			
			// ...and destination is US territory, then it is "domestic"
			if( in_array( $country_receiver, $this->us_territories ) ) {
				return true;
			} else {
				return false;
			}

		} elseif( $country_receiver == $this->base_country_code ) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * Function return whether the sender and receiver country is "crossborder" i.e. needs CUSTOMS declarations (outside EU)
	 */
	public function is_crossborder_shipment( $country_receiver ) {

		if ($this->is_shipping_domestic( $country_receiver )) {
			return false;
		}

		// Is sender country in EU...
		if ( in_array( $this->base_country_code, $this->eu_iso2 ) ) {
			// ... and receiver country is in EU means NOT crossborder!
			if ( in_array( $country_receiver, $this->eu_iso2 ) ) {
				return false;
			} else {
				return true;
			}
		} else {
			return true;
		}
	}

	public function is_packstation( $string )	{
		$pos_ps = stripos( $string, PR_DHL_PACKSTATION );

		if( $pos_ps !== false ) {
			return true;
		} else {
			return false;
		}
	}

	public function is_parcelshop( $string )	{
		$pos_ps = stripos( $string, PR_DHL_PARCELSHOP );

		if( $pos_ps !== false ) {
			return true;
		} else {
			return false;
		}
	}

	public function is_post_office( $string )	{
		$pos_ps = stripos( $string, PR_DHL_POST_OFFICE );

		if( $pos_ps !== false ) {
			return true;
		} else {
			return false;
		}
	}

	/**
     * Installation functions
     *
     * Create temporary folder and files. DHL labels will be stored here as required
     *
     * empty_pdf_task will delete them hourly
     */
    public function create_dhl_label_folder() {
        // Install files and folders for uploading files and prevent hotlinking
        $upload_dir =  wp_upload_dir();

        $files = array(
            array(
                'base'      => $upload_dir['basedir'] . '/woocommerce_dhl_label',
                'file'      => '.htaccess',
                'content'   => 'deny from all'
            ),
            array(
                'base'      => $upload_dir['basedir'] . '/woocommerce_dhl_label',
                'file'      => 'index.html',
                'content'   => ''
            )
        );

        foreach ( $files as $file ) {

            if ( wp_mkdir_p( $file['base'] ) && ! file_exists( trailingslashit( $file['base'] ) . $file['file'] ) ) {

                if ( $file_handle = @fopen( trailingslashit( $file['base'] ) . $file['file'], 'w' ) ) {
                    fwrite( $file_handle, $file['content'] );
                    fclose( $file_handle );
                }

            }

        }
    }

    public function dhl_label_folder_check() {
        $upload_dir =  wp_upload_dir();
        if ( !file_exists( $upload_dir['basedir'] . '/woocommerce_dhl_label/.htaccess' ) ) {
            $this->create_dhl_label_folder();
        }
    }

    public function get_dhl_label_folder_dir() {
        $upload_dir =  wp_upload_dir();
        if ( file_exists( $upload_dir['basedir'] . '/woocommerce_dhl_label/.htaccess' ) ) {
            return $upload_dir['basedir'] . '/woocommerce_dhl_label/';
        }
        return '';
    }

    public function get_dhl_label_folder_url() {
        $upload_dir =  wp_upload_dir();
        if ( file_exists( $upload_dir['basedir'] . '/woocommerce_dhl_label/.htaccess' ) ) {
            return $upload_dir['baseurl'] . '/woocommerce_dhl_label/';
        }
        return '';
    }

    public function add_vn_states( $states ) {
    	
        try {
			$dhl_obj = $this->get_dhl_factory();
			
			if( $dhl_obj->is_dhl_ecomm() ) {
				if ( empty( $states['VN'] ) ) {
					include( PR_DHL_PLUGIN_DIR_PATH . '/states/VN.php' );
				}
			}
		} catch (Exception $e) {
			// add_action( 'admin_notices', array( $this, 'environment_check' ) );
		}
        return $states;
    }
}

endif;

/**
 * Activation hook.
 */
function pr_dhl_activate() {
	// Flag for permalink flushed
	update_option('dhl_permalinks_flushed', 0);
}
register_activation_hook( __FILE__, 'pr_dhl_activate' );

function PR_DHL() {
	return PR_DHL_WC::instance();
}

$PR_DHL_WC = PR_DHL();

include( 'dhlpwoocommerce/dhlpwoocommerce.php' );