<?php

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

/**
 * WooCommerce DHL Shipping Order.
 *
 * @category Shipping
 *
 * @author   Shadi Manna
 */
if (! class_exists('PR_DHL_Front_End_Paket')) {

    class PR_DHL_Front_End_Paket
    {
        private $preferred_services = [];

        private $preferred_location_neighbor = [];

        private $cdp_service = [];

        private $shipping_dhl_settings = [];

        /**
         * Init and hook in the integration.
         */
        public function __construct()
        {

            $this->shipping_dhl_settings = PR_DHL()->get_shipping_dhl_settings();

            $this->init_hooks();

            $this->preferred_services = [
                'pr_dhl_preferred_day' => esc_html__('Delivery Day', 'dhl-for-woocommerce'),
                'pr_dhl_preferred_location_neighbor' => esc_html__('Preferred Location or Neighbor', 'dhl-for-woocommerce'),
                'pr_dhl_preferred_location' => esc_html__('Preferred Location Address', 'dhl-for-woocommerce'),
                'pr_dhl_preferred_neighbour_name' => esc_html__('Preferred Neighbor Name', 'dhl-for-woocommerce'),
                'pr_dhl_preferred_neighbour_address' => esc_html__('Preferred Neighbor Address', 'dhl-for-woocommerce'),
            ];

            $this->preferred_location_neighbor = [
                'preferred_location' => esc_html__('Location', 'dhl-for-woocommerce'),
                'preferred_neighbor' => esc_html__('Neighbor', 'dhl-for-woocommerce'),
            ];

            $this->cdp_service = [
                'pr_dhl_cdp_delivery' => esc_html__('Delivery option', 'dhl-for-woocommerce'),
            ];
        }

        public function init_hooks()
        {

            add_action('wp_enqueue_scripts', [$this, 'load_styles_scripts']);

            if ($this->is_tracking_enabled() && ($this->is_preferredservice_enabled() || $this->is_parcelfinder_enabled() || $this->is_cdp_enabled())) {
                // Add DHL meta tag
                add_action('wp_head', [$this, 'dhl_add_meta_tags']);
            }

            if ($this->is_cdp_enabled()) {
                add_action('woocommerce_review_order_after_shipping', [$this, 'add_cdp_fields']);
                add_action('woocommerce_checkout_order_processed', [$this, 'process_cdp_fields'], 10, 2);
            }

            if ($this->is_preferredservice_enabled()) {
                add_action('woocommerce_review_order_after_shipping', [$this, 'add_preferred_fields']);
                add_action('woocommerce_cart_calculate_fees', [$this, 'add_cart_fees']);
                add_action('woocommerce_checkout_process', [$this, 'verify_preferred_services_fields']);
                add_action('woocommerce_checkout_order_processed', [$this, 'process_dhl_preferred_fields'], 10, 2);
                add_filter('woocommerce_get_order_item_totals', [$this, 'display_dhl_preferred_free_services_values'], 10, 2);
            }

            // Parcel finder hooks
            if ($this->is_parcelfinder_enabled()) {
                // add_action( 'woocommerce_after_checkout_billing_form', array( $this, 'add_parcel_finder_btn' ) );
                add_action('woocommerce_before_checkout_shipping_form', [$this, 'add_registration_text_above_shipping_fields']);

                add_action('woocommerce_before_checkout_shipping_form', [$this, 'add_parcel_finder_btn']);
                add_action('woocommerce_after_checkout_form', [$this, 'add_parcel_finder_form']);

                add_action('wp_ajax_wc_shipment_dhl_parcelfinder_search', [$this, 'call_parcel_finder']);
                add_action('wp_ajax_nopriv_wc_shipment_dhl_parcelfinder_search', [$this, 'call_parcel_finder']);

                add_filter('woocommerce_checkout_fields', [$this, 'add_postnum_field'], 101);
                add_action('woocommerce_checkout_process', [$this, 'validate_post_number']);
                add_action('woocommerce_checkout_order_processed', [$this, 'clear_post_number_for_regular_address'], 10, 2);
                // add_action( 'woocommerce_process_checkout_field_shipping_dhl_postnum_ps', array( $this, 'validate_post_number_required' ) );

                add_filter('woocommerce_order_formatted_shipping_address', [$this, 'display_post_number'], 10, 2);
                add_filter('woocommerce_localisation_address_formats', [$this, 'set_format_post_number']);
                add_filter('woocommerce_formatted_address_replacements', [$this, 'add_format_post_number'], 10, 2);

                add_filter('woocommerce_admin_shipping_fields', [$this, 'admin_order_add_postnum_field'], 10);
            }

            if ($this->is_email_notification_enabled()) {
                $pos = apply_filters('pr_shipping_dhl_email_notification_position', 'woocommerce_review_order_before_submit');
                add_action($pos, [$this, 'add_email_notification_checkbox'], 10);
                add_action('woocommerce_checkout_order_processed', [$this, 'process_email_notification_fields'], 30, 2);
            }
        }

        /**
         * Add DHL registration link above the shipping fields.
         */
        public function add_registration_text_above_shipping_fields(): void
        {
            $link = DHL_GERMAN_REGISTRATION_LINK;

            if (get_locale() === 'en_US') {
                $link = DHL_ENGLISH_REGISTRATION_LINK;
            }

            echo '<div class="registration_info" >';
            echo sprintf(esc_html__('For deliveries to DHL Parcel Lockers you have to %1screate a DHL account%2s and get a Post Number.', 'dhl-for-woocommerce'), '<a href="'.esc_url($link).'" target="_blank">', '</a>');
            echo '</div>';
        }

        /**
         * is_using_checkout_block
         *
         * @param array is_using_checkout_block local fields.
         * @return bool
         */
        protected function is_using_checkout_block()
        {
            $checkout_page_id = wc_get_page_id('checkout');
            $has_block_checkout = $checkout_page_id && has_block('woocommerce/checkout', $checkout_page_id);

            if ($has_block_checkout) {
                $is_using_checkout_block = true;
            } else {
                $is_using_checkout_block = false;
            }

            return $is_using_checkout_block;
        }

        protected function is_tracking_enabled()
        {
            return false;
        }

        protected function is_preferredservice_enabled()
        {

            if ((isset($this->shipping_dhl_settings['dhl_preferred_day']) && ($this->shipping_dhl_settings['dhl_preferred_day'] == 'yes')) || (isset($this->shipping_dhl_settings['dhl_preferred_location']) && ($this->shipping_dhl_settings['dhl_preferred_location'] == 'yes')) || (isset($this->shipping_dhl_settings['dhl_preferred_neighbour']) && ($this->shipping_dhl_settings['dhl_preferred_neighbour'] == 'yes'))) {
                return true;
            } else {
                return false;
            }
        }

        protected function is_cdp_enabled()
        {

            if (isset($this->shipping_dhl_settings['dhl_closest_drop_point']) && ($this->shipping_dhl_settings['dhl_closest_drop_point'] === 'yes')) {
                return true;
            }

            return false;
        }

        public function dhl_add_meta_tags()
        {
            echo '<meta name="58vffw8g4r9_t3e38g4og588915" content="Yes">';
        }

        /**
         * Localization for NL address fields.
         *
         * @param  array  $checkout_fields  Checkout fields.
         * @return array
         */
        public function get_country_locale($checkout_fields)
        {

            if ($this->is_using_checkout_block()) {
                $fields_to_order = [
                    'pr-dhl/address_type' => ['priority' => 1],
                    'first_name' => ['priority' => 3],
                    'last_name' => ['priority' => 4],
                    'company' => ['priority' => 5],
                    'country' => ['priority' => 6],
                    'postcode' => ['priority' => 7],
                    'shipping_pr_dhl/postnum' => ['priority' => 8],
                ];
            }

            foreach ($fields_to_order as $field_key => $field) {
                foreach ($field as $override => $value) {
                    $checkout_fields['DE'][$field_key][$override] = $value;
                }
            }

            /**
             * Hide extra fields from the other countries .
             */
            $countries_codes = array_keys(WC()->countries->get_countries());
            foreach ($countries_codes as $country_code) {
                if ($country_code !== 'DE') {
                    $checkout_fields[$country_code]['pr-dhl/address_type']['hidden'] = true;
                    $checkout_fields[$country_code]['pr-dhl/address_type']['required'] = false;
                    $checkout_fields[$country_code]['pr-dhl/postnum']['hidden'] = true;
                    $checkout_fields[$country_code]['pr-dhl/postnum']['required'] = false;
                }
            }

            return $checkout_fields;
        }

        public function load_styles_scripts()
        {
            $is_parcelfinder_enabled = $this->is_parcelfinder_enabled();

            if ($this->is_tracking_enabled() && ($this->is_preferredservice_enabled() || $is_parcelfinder_enabled)) {

                wp_enqueue_script('pr-dhl-frontend-pixel', PR_DHL_PLUGIN_DIR_URL.'/assets/js/pr-dhl-frontend-pixel.js', [], PR_DHL_VERSION, true);
            }

            // load scripts on checkout page only
            if (! is_checkout()) {
                return;
            }

            $frontend_data = [
                'ajax_url' => admin_url('admin-ajax.php'),
                'packstation_icon' => PR_DHL_PLUGIN_DIR_URL.'/assets/img/packstation.png',
                'parcelshop_icon' => PR_DHL_PLUGIN_DIR_URL.'/assets/img/parcelshop.png',
                'post_office_icon' => PR_DHL_PLUGIN_DIR_URL.'/assets/img/post_office.png',
                'opening_times' => esc_html__('Opening Times', 'dhl-for-woocommerce'),
                'monday' => esc_html__('Monday', 'dhl-for-woocommerce'),
                'tueday' => esc_html__('Tuesday', 'dhl-for-woocommerce'),
                'wednesday' => esc_html__('Wednesday', 'dhl-for-woocommerce'),
                'thrusday' => esc_html__('Thursday', 'dhl-for-woocommerce'),
                'friday' => esc_html__('Friday', 'dhl-for-woocommerce'),
                'satuday' => esc_html__('Saturday', 'dhl-for-woocommerce'),
                'sunday' => esc_html__('Sunday', 'dhl-for-woocommerce'),
                'services' => esc_html__('Services', 'dhl-for-woocommerce'),
                'yes' => esc_html__('Yes', 'dhl-for-woocommerce'),
                'no' => esc_html__('No', 'dhl-for-woocommerce'),
                'parking' => esc_html__('Parking', 'dhl-for-woocommerce'),
                'handicap' => esc_html__('Handicap Accessible', 'dhl-for-woocommerce'),
                'packstation' => PR_DHL_PACKSTATION,
                'parcelShop' => PR_DHL_PARCELSHOP,
                'postoffice' => PR_DHL_POST_OFFICE,
                'branch' => esc_html__('Branch', 'dhl-for-woocommerce'),
                'select' => esc_html__('Select ', 'dhl-for-woocommerce'),
                'select_drop' => esc_html__('Select a drop-off point', 'dhl-for-woocommerce'),
                'post_number' => esc_html__('Post Number ', 'dhl-for-woocommerce'),
                'post_number_tip' => esc_html__('<span class="dhl-tooltip" title="Indicate a preferred time, which suits you best for your parcel delivery by choosing one of the displayed time windows.">?</span>', 'dhl-for-woocommerce'),
                // Translators: %1$s is an opening HTML tag and %2$s is a closing HTML tag for styling the error message.
                'no_api_key' => sprintf(esc_html__('%1$sPlease insert an API Key to enable the display of locations in the frontend on a map.%2$s', 'dhl-for-woocommerce'), '<div class="woocommerce-error">', '</div>'),
                'post_code_error' => esc_html__('Please enter a postcode to search locations.', 'dhl-for-woocommerce'),
            ];

            if (! empty($this->shipping_dhl_settings['dhl_payment_gateway'])) {
                $frontend_data['cod_enabled'] = true;
            } else {
                $frontend_data['cod_enabled'] = false;
            }

            if ($this->is_preferredservice_enabled() || $is_parcelfinder_enabled) {
                $frontend_data['map_type'] = $this->get_map_type();
                $frontend_data['ship_to_different_address_text'] = esc_html__('Ship to a different address or Packstation/Branch?', 'dhl-for-woocommerce');

                // Register and load our styles and scripts
                wp_register_script('pr-dhl-checkout-frontend', PR_DHL_PLUGIN_DIR_URL.'/assets/js/pr-dhl-checkout-frontend.js', ['jquery', 'wc-checkout'], PR_DHL_VERSION, true);
                wp_localize_script('pr-dhl-checkout-frontend', 'pr_dhl_checkout_frontend', $frontend_data);
                wp_enqueue_script('pr-dhl-checkout-frontend');

                wp_enqueue_style('pr-dhl-checkout-frontend', PR_DHL_PLUGIN_DIR_URL.'/assets/css/pr-dhl-frontend.css', [], PR_DHL_VERSION);
            }

            if ($this->is_preferredservice_enabled()) {
                // jquery UI for tool tip
                wp_enqueue_style('pr-dhl-jquery-ui-style', PR_DHL_PLUGIN_DIR_URL.'/assets/css/jquery-ui-tooltip.css', [], '1.0');
                wp_enqueue_script('jquery-effects-core');
                wp_enqueue_script('jquery-ui-tooltip');
            }

            if ($is_parcelfinder_enabled && $this->is_map_enabled()) {
                // Enqueue Fancybox
                wp_enqueue_script('pr-dhl-fancybox-js', PR_DHL_PLUGIN_DIR_URL.'/assets/js/jquery.fancybox.min.js', ['jquery']);
                wp_enqueue_style('pr-dhl-fancybox-css', PR_DHL_PLUGIN_DIR_URL.'/assets/css/jquery.fancybox.min.css', '', PR_DHL_VERSION);
                if ($this->get_map_type() === 'osm') {
                    // Enqueue Leaflet
                    wp_enqueue_style('leaflet_css', 'https://unpkg.com/leaflet/dist/leaflet.css', '', PR_DHL_VERSION);
                    wp_enqueue_script('leaflet_js', 'https://unpkg.com/leaflet/dist/leaflet.js', '', PR_DHL_VERSION);
                } else {
                    // Enqueue Google Maps
                    wp_enqueue_script('pr-dhl-google-maps', 'https://maps.googleapis.com/maps/api/js?key='.$this->shipping_dhl_settings['dhl_google_maps_api_key']);
                }
            }
        }

        protected function validate_is_german_customer()
        {
            $billing_country = WC()->customer ? WC()->customer->get_billing_country() : '';
            $shipping_country = WC()->customer ? WC()->customer->get_shipping_country() : '';
            $base_country_code = PR_DHL()->get_base_country();

            $display_preferred = false;
            // Preferred options are only for Germany customers
            if ($base_country_code == 'DE' && ($shipping_country == 'DE' || $billing_country == 'DE')) {
                return true;
            } else {
                return false;
            }
        }

        public function validate_extra_services_available($check_day_transfer = false)
        {
            // woocommerce_form_field('pr_dhl_paket_preferred_location');
            $chosen_shipping_methods = WC()->session->get('chosen_shipping_methods');
            $chosen_payment_method = WC()->session->get('chosen_payment_method');

            $display_preferred = false;
            // Preferred options are only for Germany customers
            if ($this->validate_is_german_customer()) {

                if ($check_day_transfer) {
                    foreach (WC()->cart->get_cart() as $cart_item_key => $values) {
                        $same_day_transfer = get_post_meta($values['product_id'], '_dhl_no_same_day_transfer', true);

                        // If one of the products cannot be transferred same day then don't show preferred services
                        if ($same_day_transfer == 'yes') {
                            return false;
                        }
                    }
                }

                if (! isset($this->shipping_dhl_settings) || empty($this->shipping_dhl_settings['dhl_shipping_methods'])) {
                    throw new Exception(esc_html__('No shipping method enabled.', 'dhl-for-woocommerce'));
                }

                $wc_methods_dhl = $this->shipping_dhl_settings['dhl_shipping_methods'];
                if (isset($chosen_shipping_methods)) {

                    if (is_array($chosen_shipping_methods)) {

                        foreach ($chosen_shipping_methods as $key => $value) {

                            $ship_method_slug = $this->get_shipping_method_slug($value);

                            if (in_array($ship_method_slug, $wc_methods_dhl)) {

                                $display_preferred = true;
                                break;
                            }
                        }
                    } else {
                        $ship_method_slug = $this->get_shipping_method_slug($chosen_shipping_methods);

                        if (in_array($ship_method_slug, $wc_methods_dhl)) {
                            $display_preferred = true;
                        }
                    }
                }

                $wc_payment_dhl = $this->shipping_dhl_settings['dhl_payment_gateway'];
                if (isset($chosen_payment_method) && ! empty($wc_payment_dhl)) {
                    if (is_array($chosen_payment_method)) {

                        foreach ($chosen_payment_method as $key => $value) {
                            // $ship_method_slug = $this->get_shipping_method_slug( $value );

                            if (in_array($value, $wc_payment_dhl)) {
                                throw new Exception(esc_html__('Payment gateway excluded.', 'dhl-for-woocommerce'));
                            }
                        }
                    } else {
                        // $ship_method_slug = $this->get_shipping_method_slug( $chosen_payment_method );
                        if (in_array($chosen_payment_method, $wc_payment_dhl)) {
                            throw new Exception(esc_html__('Payment gateway excluded.', 'dhl-for-woocommerce'));
                        }
                    }
                }
            }

            // if reached here and not enabled then it's due to the selected shipping method not being set for DHL services
            if (! $display_preferred) {
                throw new Exception(esc_html__('Not enabled for selected shipping method.', 'dhl-for-woocommerce'));
            }

            return $display_preferred;
        }

        protected function validate_cdp_available()
        {
            $shipping_country = WC()->customer->get_shipping_country();
            $valid_countries = ['SE', 'FI', 'BE', 'AT', 'FR'];

            if (in_array($shipping_country, $valid_countries)) {
                // Check if COD payment gateway selected
                $wc_payment_dhl = $this->shipping_dhl_settings['dhl_payment_gateway'];
                $chosen_payment_method = WC()->session->get('chosen_payment_method');

                if (isset($chosen_payment_method) && ! empty($wc_payment_dhl)) {

                    if (is_array($chosen_payment_method)) {

                        foreach ($chosen_payment_method as $key => $value) {
                            if (in_array($value, $wc_payment_dhl)) {
                                return false;
                            }
                        }
                    } elseif (in_array($chosen_payment_method, $wc_payment_dhl)) {
                        return false;
                    }
                }

                return true;
            }

            return false;
        }

        public function add_preferred_fields()
        {
            try {

                $display_preferred = $this->validate_extra_services_available(true);

                if ($display_preferred == true) {
                    $template_args = [];
                    if (isset($_POST['post_data'])) {
                        parse_str($_POST['post_data'], $post_data);

                        foreach ($this->preferred_services as $key => $value) {
                            if (isset($post_data[$key])) {
                                // array_push($template_args, $post_data[ $key ] );
                                $template_args[$key.'_selected'] = wc_clean($post_data[$key]);
                            }
                        }
                    }

                    if (isset($this->shipping_dhl_settings['dhl_preferred_day']) && ($this->shipping_dhl_settings['dhl_preferred_day'] == 'yes')) {

                        if (isset($_POST['s_postcode'])) {
                            $shipping_postcode = wc_clean($_POST['s_postcode']);
                            $template_args['preferred_day_time'] = PR_DHL()->get_dhl_preferred_day_time($shipping_postcode);
                            // Place preferred day and time in session, as to not call the API after placing an order unnecessarily
                            WC()->session->set('dhl_preferred_day_time', $template_args['preferred_day_time']);
                        }
                    }

                    wc_get_template('checkout/dhl-preferred-services.php', $template_args, '', PR_DHL_PLUGIN_DIR_PATH.'/templates/');
                }
            } catch (Exception $e) {
                // do nothing
            }
        }

        public function add_cdp_fields()
        {
            if ($this->validate_cdp_available()) {
                wc_get_template('checkout/dhl-closest-drop-point.php', [], '', PR_DHL_PLUGIN_DIR_PATH.'/templates/');
            }
        }

        public function add_cart_fees($cart)
        {

            if (! $_POST || (is_admin() && ! is_ajax())) {
                return;
            }

            // POST information is either in a query string-like variable called 'post_data'...
            if (isset($_POST['post_data'])) {
                parse_str($_POST['post_data'], $post_data);
            } else {
                $post_data = $_POST; // ... else it is in the POST variable itself
            }

            try {

                if (! isset($this->shipping_dhl_settings)) {
                    return;
                }

                if (! empty($post_data['pr_dhl_preferred_day'])) {

                    if (! empty($this->shipping_dhl_settings['dhl_preferred_day_cost'])) {
                        $cart->add_fee(esc_html__('DHL Delivery Day', 'dhl-for-woocommerce'), wc_format_decimal($this->shipping_dhl_settings['dhl_preferred_day_cost']));
                    }
                }
                /*
                if( ! empty( $this->shipping_dhl_settings['dhl_cod_fee'] ) && $this->shipping_dhl_settings['dhl_cod_fee'] == 'yes' && isset( $post_data['payment_method'] ) && $post_data['payment_method'] == 'cod' ) {
                // Add €2 fee to COD usage (Euro is being assumed as currency)
                $cart->add_fee( esc_html__('DHL COD fee', 'dhl-for-woocommerce'), 2 );
                }*/

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

        public function verify_preferred_services_fields()
        {
            // save the posted preferences to the order so can be used when generating label
            $dhl_label_options = [];
            if (! isset($_POST)) {
                return $dhl_label_options;
            }

            foreach ($this->preferred_services as $key => $value) {
                if (! empty($_POST[$key])) {
                    $dhl_label_options[$key] = wc_clean($_POST[$key]);
                }
            }

            if (isset($dhl_label_options)) {

                if (isset($dhl_label_options['pr_dhl_preferred_location_neighbor'])) {

                    if (($dhl_label_options['pr_dhl_preferred_location_neighbor'] == 'preferred_location') && (! isset($dhl_label_options['pr_dhl_preferred_location']))) {

                        throw new Exception(esc_html__('Please enter the preferred location.', 'dhl-for-woocommerce'));
                    }

                    if (($dhl_label_options['pr_dhl_preferred_location_neighbor'] == 'preferred_neighbor') && (! isset($dhl_label_options['pr_dhl_preferred_neighbour_name']) || ! isset($dhl_label_options['pr_dhl_preferred_neighbour_address']))) {

                        throw new Exception(esc_html__('Please enter the preferred neighbor name and address.', 'dhl-for-woocommerce'));
                    }
                }
            }

            return $dhl_label_options;
        }

        public function process_dhl_preferred_fields($order_id, $posted)
        {
            // save the posted preferences to the order so can be used when generating label
            $dhl_label_options = $this->verify_preferred_services_fields();

            if (! empty($dhl_label_options)) {
                PR_DHL()->get_pr_dhl_wc_order()->save_dhl_label_items($order_id, $dhl_label_options);
            }
        }

        public function prepare_cdp_fields()
        {
            // save the posted preferences to the order so can be used when generating label
            $dhl_label_options = [];
            if (! isset($_POST)) {
                return $dhl_label_options;
            }

            foreach ($this->cdp_service as $key => $value) {
                if (! empty($_POST[$key])) {
                    $dhl_label_options[$key] = wc_clean($_POST[$key]);
                }
            }

            return $dhl_label_options;
        }

        public function process_cdp_fields($order_id, $posted)
        {
            // save the posted preferences to the order so can be used when generating label
            $dhl_label_options = $this->prepare_cdp_fields();

            if (! empty($dhl_label_options)) {
                PR_DHL()->get_pr_dhl_wc_order()->save_dhl_label_items($order_id, $dhl_label_options);
            }
        }

        private function get_shipping_method_slug($ship_method)
        {

            if (empty($ship_method)) {
                return $ship_method;
            }

            // Assumes format 'name:id'
            $new_ship_method = explode(':', $ship_method);
            $new_ship_method = isset($new_ship_method[0]) ? $new_ship_method[0] : $ship_method;

            return $new_ship_method;
        }

        public function display_dhl_preferred_free_services_values($total_rows, $order)
        {
            $order_id = $order->get_id();
            $dhl_label_options = PR_DHL()->get_pr_dhl_wc_order()->get_dhl_label_items($order_id);

            if (isset(WC()->session)) {

                $preferred_day_time = WC()->session->get('dhl_preferred_day_time');

                $new_rows = [];
                foreach ($this->preferred_services as $key => $value) {

                    if (! empty($dhl_label_options[$key])) {
                        // NEED TO PLACE THESE ROWS BEFORE THE PAYMENT METHOD
                        $new_rows[$key]['label'] = $value.':';

                        if (isset($this->preferred_location_neighbor[$dhl_label_options[$key]])) {
                            $new_rows[$key]['value'] = $this->preferred_location_neighbor[$dhl_label_options[$key]];
                        } else {
                            $new_rows[$key]['value'] = $dhl_label_options[$key];
                        }
                    }
                }
                if (! empty($new_rows)) {
                    // Instert before payment method
                    $insert_before = array_search('payment_method', array_keys($total_rows));

                    // If no payment method, insert before order total
                    if (empty($insert_before)) {
                        $insert_before = array_search('order_total', array_keys($total_rows));
                    }
                    if (empty($insert_before)) {
                        $total_rows += $new_rows;
                    } else {
                        $this->array_insert($total_rows, $insert_before, $new_rows);
                    }
                }
            }

            return $total_rows;
        }

        private function array_insert(&$array, $position, $insert_array)
        {
            $first_array = array_splice($array, 0, $position);
            $array = array_merge($first_array, $insert_array, $array);
        }

        public function add_parcel_finder_btn()
        {
            if (! $this->is_map_enabled()) {
                return;
            }

            $dhl_logo = PR_DHL_PLUGIN_DIR_URL.'/assets/img/dhl-official.png';
            echo '<a data-fancybox id="dhl_parcel_finder" class="button" data-src="#dhl_parcel_finder_form" href="javascript:;">'.$this->get_branch_location_text().'<img src="'.esc_url($dhl_logo).'" class="dhl-co-logo"></a>';
        }

        protected function get_branch_location_text()
        {
            $button_text = '';
            if ($this->is_parcelshop_enabled() || $this->is_post_office_enabled()) {
                // $button_text = esc_html__('Search Packstation / Branch', 'dhl-for-woocommerce')
                $button_text = esc_html__('Branch', 'dhl-for-woocommerce');
            }

            if ($this->is_packstation_enabled()) {
                if (! empty($button_text)) {
                    $button_text = esc_html__(' / ', 'dhl-for-woocommerce').$button_text;
                }

                $button_text = esc_html__('Packstation', 'dhl-for-woocommerce').$button_text;
            }

            $button_text = esc_html__('Search ', 'dhl-for-woocommerce').$button_text;

            return $button_text;
        }

        public function add_parcel_finder_form()
        {
            $template_args = [];

            $template_args['packstation_img'] = PR_DHL_PLUGIN_DIR_URL.'/assets/img/packstation.png';
            $template_args['parcelshop_img'] = PR_DHL_PLUGIN_DIR_URL.'/assets/img/parcelshop.png';
            $template_args['post_office_img'] = PR_DHL_PLUGIN_DIR_URL.'/assets/img/post_office.png';

            $template_args['packstation_enabled'] = $this->is_packstation_enabled();
            $template_args['parcelshop_enabled'] = $this->is_parcelshop_enabled();
            $template_args['post_office_enabled'] = $this->is_post_office_enabled();

            wc_get_template('checkout/dhl-parcel-finder.php', $template_args, '', PR_DHL_PLUGIN_DIR_PATH.'/templates/');
        }

        public function call_parcel_finder()
        {
            check_ajax_referer('dhl_parcelfinder', 'security');

            $parcelfinder_country = isset($_POST['parcelfinder_country']) ? wc_clean(wp_unslash($_POST['parcelfinder_country'])) : '';
            $parcelfinder_postcode = isset($_POST['parcelfinder_postcode']) ? wc_clean(wp_unslash($_POST['parcelfinder_postcode'])) : '';
            $parcelfinder_city = isset($_POST['parcelfinder_city']) ? wc_clean(wp_unslash($_POST['parcelfinder_city'])) : '';
            $parcelfinder_address = isset($_POST['parcelfinder_address']) ? wc_clean(wp_unslash($_POST['parcelfinder_address'])) : '';
            $packstation_filter = isset($_POST['packstation_filter']) ? wc_clean(wp_unslash($_POST['packstation_filter'])) : '';
            $branch_filter = isset($_POST['branch_filter']) ? wc_clean(wp_unslash($_POST['branch_filter'])) : '';

            try {
                $dhl_obj = PR_DHL()->get_dhl_factory();
                $args['dhl_settings']['api_user'] = $this->shipping_dhl_settings['dhl_api_user'];
                $args['dhl_settings']['api_pwd'] = $this->shipping_dhl_settings['dhl_api_pwd'];
                $args['dhl_settings']['sandbox'] = $this->shipping_dhl_settings['dhl_sandbox'];
                $args['shipping_address']['address'] = $parcelfinder_address;
                $args['shipping_address']['postcode'] = $parcelfinder_postcode;
                $args['shipping_address']['city'] = $parcelfinder_city;
                $args['shipping_address']['country'] = $parcelfinder_country;
                $args['dhl_parcel_limit'] = $this->shipping_dhl_settings['dhl_parcel_limit'];
                $args['dhl_packstation_filter'] = $packstation_filter;
                $args['dhl_branch_filter'] = $branch_filter;

                $parcel_res = $dhl_obj->get_parcel_location($args);

                if (! isset($parcel_res->locations)) {
                    throw new Exception(esc_html__('No parcel shops found', 'dhl-for-woocommerce'));
                }

                $res_count = 0;
                $parcel_res_filtered = [];
                foreach ($parcel_res->locations as $key => $value) {

                    if (($this->is_packstation_enabled() &&
                        ($packstation_filter == 'true') &&
                        ($value->location->type == 'locker')) ||
                    ($this->is_parcelshop_enabled() &&
                        ($branch_filter == 'true') &&
                        ($value->location->type == 'servicepoint')) ||
                    ($this->is_post_office_enabled() &&
                        ($branch_filter == 'true') &&
                        ($value->location->type == 'postoffice' || $value->location->type == 'postbank'))) {

                        if ($value->serviceTypes) {
                            if (is_array($value->serviceTypes)) {
                                foreach ($value->serviceTypes as $service_type) {
                                    // Only display shops that accept parcels.
                                    // Not needed 'parcelacceptance'
                                    if (in_array($service_type, ['parcel:pick-up', 'parcel:pick-up-unregistered', 'parcel:pick-up-registered'])) {
                                        array_push($parcel_res_filtered, $value);
                                        $res_count++;
                                        break;
                                    }
                                }
                            } elseif (in_array($value->serviceTypes, ['parcel:pick-up', 'parcel:pick-up-unregistered', 'parcel:pick-up-registered'])) {
                                array_push($parcel_res_filtered, $value);
                                $res_count++;
                            }
                        }
                    }

                    if ($res_count == $this->shipping_dhl_settings['dhl_parcel_limit']) {
                        break;
                    }
                }

                if (empty($parcel_res_filtered)) {
                    throw new Exception(esc_html__('No Parcel Shops found. Ensure "Packstation" or Branch" filter is checked ', 'dhl-for-woocommerce'));
                }

                wp_send_json(
                    [
                        'parcel_res' => $parcel_res_filtered,
                        // 'tracking_note'    => $tracking_note
                    ]
                );

            } catch (Exception $e) {
                wp_send_json(['error' => $e->getMessage()]);
            }

            wp_die();
        }

        protected function is_parcelfinder_enabled()
        {

            if ($this->is_packstation_enabled() || $this->is_parcelshop_enabled() || $this->is_post_office_enabled()) {
                return true;
            } else {
                return false;
            }
        }

        /**
         * Is Location Finder map enabled?
         *
         * @return bool
         */
        protected function is_map_enabled()
        {
            if ((isset($this->shipping_dhl_settings['dhl_display_google_maps']) &&
                   ($this->shipping_dhl_settings['dhl_display_google_maps'] == 'yes'))) {
                return true;
            }

            return false;
        }

        /**
         * Get Location Finder map type.
         *
         * @return string
         */
        protected function get_map_type()
        {
            if ((isset($this->shipping_dhl_settings['dhl_map_type']) &&
                   ($this->shipping_dhl_settings['dhl_map_type'] === 'osm'))) {
                return 'osm';
            }

            return 'gmaps';
        }

        protected function is_packstation_enabled()
        {

            if ((isset($this->shipping_dhl_settings['dhl_display_packstation']) &&
            ($this->shipping_dhl_settings['dhl_display_packstation'] == 'yes'))) {
                return true;
            } else {
                return false;
            }
        }

        protected function is_parcelshop_enabled()
        {

            if ((isset($this->shipping_dhl_settings['dhl_display_parcelshop']) &&
            ($this->shipping_dhl_settings['dhl_display_parcelshop'] == 'yes'))) {
                return true;
            } else {
                return false;
            }
        }

        protected function is_post_office_enabled()
        {

            if ((isset($this->shipping_dhl_settings['dhl_display_post_office']) &&
            ($this->shipping_dhl_settings['dhl_display_post_office'] == 'yes'))) {
                return true;
            } else {
                return false;
            }
        }

        protected function is_email_notification_enabled()
        {

            if ((isset($this->shipping_dhl_settings['dhl_email_notification']) &&
            ($this->shipping_dhl_settings['dhl_email_notification'] == 'yes'))) {
                return true;
            } else {
                return false;
            }
        }

        public function add_postnum_field($checkout_fields)
        {

            $types = [
                'normal' => esc_html__('Regular Address', 'dhl-for-woocommerce'),
            ];

            if ($this->is_packstation_enabled()) {
                $types['dhl_packstation'] = esc_html__('DHL Packstation', 'dhl-for-woocommerce');
            }

            if ($this->is_post_office_enabled()) {
                $types['dhl_branch'] = esc_html__('DHL Branch', 'dhl-for-woocommerce');
            }

            $points = [
                '' => esc_html__('Select a drop-off point', 'dhl-for-woocommerce'),
            ];

            $shipping_dhl_address_type = [
                'label' => esc_html__('Address Type', 'dhl-for-woocommerce'),
                'required' => true,
                'type' => 'select',
                'class' => ['form-row-first shipping-dhl-address-type'],
                'input_class' => ['select2-full-width'],
                'clear' => true,
                'default' => 'normal',
                'options' => $types,
            ];

            $shipping_dhl_postnum_branch = [
                'label' => esc_html__('Post Number', 'dhl-for-woocommerce'),
                'required' => false,
                'type' => 'text',
                'class' => ['shipping-dhl-postnum'],
                'clear' => true,
            ];

            $shipping_dhl_drop_off = [
                'label' => __('Drop off points', 'dhl-for-woocommerce'),
                'required' => false,
                'type' => 'select',
                'class' => ['form-row-last shipping-dhl-drop-off-points'],
                'input_class' => ['select2-full-width'],
                'clear' => true,
                'default' => 'normal',
                'options' => $points,
            ];

            $new_shipping_fields = [];

            foreach ($checkout_fields['shipping'] as $key => $field) {
                if ($key === 'shipping_first_name') {
                    $new_shipping_fields['shipping_dhl_address_type'] = $shipping_dhl_address_type;
                    $new_shipping_fields['shipping_dhl_drop_off'] = $shipping_dhl_drop_off;
                }

                if ($key === 'shipping_address_1') {
                    $new_shipping_fields['shipping_dhl_postnum'] = $shipping_dhl_postnum_branch;
                }

                $new_shipping_fields[$key] = $field;
            }

            if (empty($new_shipping_fields)) {
                $new_shipping_fields['shipping_dhl_address_type'] = $shipping_dhl_address_type;
                $new_shipping_fields['shipping_dhl_drop_off'] = $shipping_dhl_drop_off;
                $new_shipping_fields['shipping_dhl_postnum'] = $shipping_dhl_postnum_branch;

                $new_shipping_fields = array_merge($new_shipping_fields, $checkout_fields['shipping']);
            }

            // Update the checkout fields array
            $checkout_fields['shipping'] = $new_shipping_fields;

            return $checkout_fields;
        }

        public function admin_order_add_postnum_field($fields)
        {

            $shipping_dhl_postnum_branch = [
                'label' => esc_html__('Post Number', 'dhl-for-woocommerce'),
                'required' => false,
                'type' => 'text',
                'class' => 'shipping-dhl-postnum',
                'clear' => true,
                'show' => false,
            ];

            if ($new_shipping_fields = $this->array_insert_before('address_1', $fields, 'dhl_postnum', $shipping_dhl_postnum_branch)) {
                $fields = $new_shipping_fields;
            }

            return $fields;
        }

        public function add_email_notification_checkbox()
        {

            if ($this->validate_is_german_customer()) {
                woocommerce_form_field(
                    'pr_dhl_email_notification',
                    [
                        'type' => 'checkbox',
                        'class' => ['pr-dhl-email-notification form-row-wide'],
                        'label' => esc_html__('Activate Shipment Notification. When activated DHL will inform you via email about the shipment status of your order.', 'dhl-for-woocommerce'),
                    ],
                    'yes'
                );
            }
        }

        public function process_email_notification_fields($order_id, $posted)
        {

            $dhl_label_items = PR_DHL()->get_pr_dhl_wc_order()->get_dhl_label_items($order_id);

            if (isset($_POST['pr_dhl_email_notification'])) {

                if (! is_array($dhl_label_items)) {
                    $dhl_label_items = [];
                }

                $dhl_label_items['pr_dhl_email_notification'] = $_POST['pr_dhl_email_notification'];
                PR_DHL()->get_pr_dhl_wc_order()->save_dhl_label_items($order_id, $dhl_label_items);

            }
        }

        /*
         * Inserts a new key/value before the key in the array.
         *
         * @param $key
         *   The key to insert before.
         * @param $array
         *   An array to insert in to.
         * @param $new_key
         *   The key to insert.
         * @param $new_value
         *   An value to insert.
         *
         * @return
         *   The new array if the key exists, FALSE otherwise.
         *
         * @see array_insert_after()
         */
        private function array_insert_before($key, array &$array, $new_key, $new_value)
        {
            if (array_key_exists($key, $array)) {
                $new = [];
                foreach ($array as $k => $value) {
                    if ($k === $key) {
                        $new[$new_key] = $new_value;
                    }
                    $new[$k] = $value;
                }

                return $new;
            }

            return false;
        }

        public function validate_post_number()
        {

            // Validate input only if "ship to different address" flag is set
            if (! isset($_POST['ship_to_different_address'])) {
                return;
            }

            $shipping_dhl_address_type = wc_clean(wp_unslash($_POST['shipping_dhl_address_type'] ?? ''));
            $shipping_address_1 = wc_clean(wp_unslash($_POST['shipping_address_1'] ?? ''));
            $shipping_dhl_postnum = wc_clean(wp_unslash($_POST['shipping_dhl_postnum'] ?? ''));

            $pos_ps = PR_DHL()->is_packstation($shipping_address_1);
            $pos_rs = PR_DHL()->is_parcelshop($shipping_address_1);
            $pos_po = PR_DHL()->is_post_office($shipping_address_1);

            if (! empty($shipping_dhl_address_type) && $shipping_dhl_address_type != 'normal') {
                // check shipping method and payment gateway first
                try {
                    $this->validate_extra_services_available();
                } catch (Exception $e) {
                    wc_add_notice(esc_html__('"DHL Locations" cannot be used - ', 'dhl-for-woocommerce').$e->getMessage(), 'error');

                    return;
                }
            }

            if ($shipping_dhl_address_type == 'dhl_packstation') {

                if (empty($shipping_dhl_postnum)) {
                    wc_add_notice(esc_html__('Post Number is mandatory for a Packstation location.', 'dhl-for-woocommerce'), 'error');

                    return;
                }

                if (! $pos_ps) {
                    // Translators: %s is the text that must be included in the address (e.g., a specific keyword or phrase).
                    wc_add_notice(sprintf(esc_html__('The text "%s" must be included in the address.', 'dhl-for-woocommerce'), PR_DHL_PACKSTATION), 'error');

                    return;
                }
            } elseif ($shipping_dhl_address_type == 'dhl_branch') {
                if (! $pos_rs) {
                    // Translators: %s is the text that must be included in the address (e.g., a specific keyword or phrase).
                    wc_add_notice(sprintf(esc_html__('The text "%s" must be included in the address.', 'dhl-for-woocommerce'), PR_DHL_PARCELSHOP), 'error');

                    return;
                }

                if (! $pos_po) {
                    // Translators: %s is the text that must be included in the address (e.g., a specific keyword or phrase).
                    wc_add_notice(sprintf(esc_html__('The text "%s" must be included in the address.', 'dhl-for-woocommerce'), PR_DHL_POST_OFFICE), 'error');

                    return;
                }
            }

            // Post Number only applies to Packstation / Postfiliale, not a Regular Address.
            if (! empty($shipping_dhl_postnum) && PR_DHL()->is_droppoint_address_type($shipping_dhl_address_type)) {

                if (! is_numeric($shipping_dhl_postnum)) {
                    wc_add_notice(esc_html__('Post Number must be a number.', 'dhl-for-woocommerce'), 'error');

                    return;
                }

                $post_num_len = strlen($shipping_dhl_postnum);
                if ($post_num_len < 6 || $post_num_len > 12) {
                    wc_add_notice(esc_html__('The post number you entered is not valid. Please correct the number.', 'dhl-for-woocommerce'), 'error');

                    return;
                }
            }
        }

        /**
         * Clear a stale DHL Post Number when a Regular Address is selected.
         *
         * The Post Number only applies to Packstation / Parcelshop / Postfiliale deliveries.
         * If a customer entered one and then switched to a Regular Address, drop the value so
         * it is not persisted on the order or sent to the DHL API. Mirrors the Blocks checkout,
         * which clears the field client-side on the same switch. The value is kept whenever
         * either the selected address type or the shipping address itself is a droppoint, since
         * that is how it is consumed downstream.
         *
         * @param  int  $order_id  Order ID.
         * @param  array  $posted  Sanitized posted checkout data.
         */
        public function clear_post_number_for_regular_address($order_id, $posted)
        {

            // An absent or empty address type means Regular Address — e.g. when shipping to the
            // billing address, the shipping_* fields are not posted — so still treat it as a clear
            // candidate (the droppoint-address check below protects values the label still needs).
            $address_type = isset($posted['shipping_dhl_address_type']) ? $posted['shipping_dhl_address_type'] : '';

            $order = wc_get_order($order_id);

            if (! $order) {
                return;
            }

            // Keep the Post Number for droppoints — by the selected address type or by the shipping
            // address itself, which is how it is consumed downstream — so a value the label still
            // needs is never dropped, even if the address-type field says otherwise.
            if (PR_DHL()->is_droppoint($address_type, $order->get_shipping_address_1())) {
                return;
            }

            if (! empty($order->get_meta('_shipping_dhl_postnum'))) {
                $order->delete_meta_data('_shipping_dhl_postnum');
                $order->save();
            }
        }

        public function display_post_number($address, $order)
        {
            if (PR_DHL()->is_droppoint_address($address['address_1']) &&
            (! empty($shipping_dhl_postnum = $order->get_meta('_shipping_dhl_postnum')))) {
                $address['dhl_postnum'] = $shipping_dhl_postnum;
            }

            return $address;
        }

        public function set_format_post_number($formats)
        {
            $is_store_api = defined('REST_REQUEST') && REST_REQUEST
                            && ! empty($_SERVER['REQUEST_URI'])
                            && strpos($_SERVER['REQUEST_URI'], '/wc/store/') !== false;

            $is_blocks_checkout = function_exists('is_checkout') && is_checkout()
                                  && method_exists($this, 'is_using_checkout_block')
                                  && $this->is_using_checkout_block();

            if ($is_store_api || $is_blocks_checkout) {
                return $formats;
            }

            foreach ($formats as $key => $value) {
                $count = 0;

                // use double quotes to find "\n" othewise treated as 2 chars
                $format_replaced = str_replace("\n{address_1}", "\n{dhl_postnum}\n{address_1}", $value, $count);

                // Only change format if "address_1 found"
                if ($count) {
                    $formats[$key] = $format_replaced;
                }
            }

            return $formats;
        }

        public function add_format_post_number($address_format, $args)
        {
            // $address_format['{dhl_postnum}'] must be set, even if empty as to not display on the frontend as '{dhl_postnum}'
            if (isset($args['dhl_postnum'])) {
                $address_format['{dhl_postnum}'] = $args['dhl_postnum'];
            } else {
                $address_format['{dhl_postnum}'] = '';
            }

            return $address_format;
        }
    }

}