<?php
/**
 * Ekomi Integration Plugin
 *
 * @category  Ekomi
 * @package   Ekomi
 * @author    eKomi <info@ekomi-services.com>
 * @copyright Copyright (c) 2018 Ekomi ltd (http://www.ekomi.de)
 * @license   http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 * @link      http://www.ekomi.de
 *
 * Plugin Name: eKomi Integration
 * Plugin URI:  ekomi.de
 * Description: This plugin allows you to integrate your WordPress shop easily with eKomi system to collect verified reviews.
 * Version:     3.4.0
 * Author:      eKomi
 * Author URI:  ekomi.de
 * Text Domain: ekomi-integration
 */

namespace ekomi_integration;

/**
 * Plugin version.
 */
const PLUGIN_VERSION = '3.4.0';

/**
 * Constant values.
 */
const TIMESTAMP_DAYS       = 15;
const ONE_DAY_IN_SECONDS   = 86400;	
const EXPORT_METHOD_STATUS = 'status';
const EXPORT_METHOD_CRON   = 'cron';
const ENABLE_VALUE         = '1';
const DISABLE_VALUE        = '0';

/**
 * eKomi SFF (Shop Feedback Form) constants.
 */
const SFF_OPTION_ENABLE           = 'EKOMISFF_ENABLE';
const SFF_OPTION_FORM_ID          = 'EKOMISFF_FORM_ID';
const SFF_OPTION_WIDGET_WIDTH     = 'EKOMISFF_WIDGET_WIDTH';
const SFF_OPTION_WIDGET_HEIGHT    = 'EKOMISFF_WIDGET_HEIGHT';
const SFF_OPTION_TRANSACTION_PREF = 'EKOMISFF_TRANSACTION_ID_PREFIX';

/**
 * eKomi Floating Widget constants.
 */
const FLOATING_OPTION_ENABLE      = 'EKOMIFLOATING_ENABLE';
const FLOATING_OPTION_CODE        = 'EKOMIFLOATING_CODE';

/**
 * Base URL for the eKomi SFF iframe.
 *
 * @since 3.4.0
 */
const SFF_BASE_URL = 'https://smartforms.ekomi.com';

/**
 * The URL where the order data is sent.
 */
const URL_TO_SEND_DATA = 'https://plugins-dashboard.ekomiapps.de/api/v1/order';

/**
 * The URL to validate the shop id and password.
 */
const URL_GET_SETTINGS = 'https://api.ekomi.de/v3/getSettings';

/**
 * Product identifier options.
 */
const PRODUCT_IDENTIFIER_ID  = 'id';
const PRODUCT_IDENTIFIER_SKU = 'sku';

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}


/**
 * Checks if WooCommerce is installed and activated.
 *
 * @return void
 */
function ekomi_integration() {
	if ( ! is_plugin_active( 'woocommerce/woocommerce.php' ) && current_user_can( 'activate_plugins' ) ) {
		wp_die( 'Sorry, but this plugin requires the WooCommerce Plugin to be installed and active.' );
	}
}

register_activation_hook( __FILE__, __NAMESPACE__ . '\\ekomi_integration' );

/**
 * Adds data on admin menu page.
 *
 * @return void
 */
function ekomi_integration_config() {
	add_menu_page(
		__( 'eKomi Integration Configuration', 'ekomi-integration' ),
		__( 'eKomi Integration', 'ekomi-integration' ),
		'manage_options',
		'ekomi-integration-plugin',
		__NAMESPACE__ . '\\ekomi_integration_init',
		'',
		100
	);
}

add_action( 'admin_menu', __NAMESPACE__ . '\\ekomi_integration_config' );

/**
 * Processes and validates form data.
 *
 * @return void
 */
function ekomi_integration_init() {
	if ( ! current_user_can( 'manage_options' ) ) {
		die( esc_attr( __( 'You don\'t have the required permissions to edit this Plugin' ) ) );
	}

	wp_register_style( 'ekomi-integration', plugins_url( 'css/configuration.css', __FILE__ ), $deps = array(), $ver = false, $media = 'all' );
	wp_enqueue_style( 'ekomi-integration' );

	$order_statuses          = ei_get_order_statuses();
	$data                    = array();
	$response['is_submited'] = false;
	$default_lang            = ei_get_default_lang_code();

	load_plugin_textdomain( 'ekomi-integration', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );

	$lang_code = $default_lang;
	if ( isset( $_GET['lang'] ) ) {
		$lang_code = sanitize_key( $_GET['lang'] );
	}

	$lang_code = explode( '_', $lang_code )[0];

	ei_load_textdomain( 'ekomi-integration', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/', $lang_code );

	if ( isset( $_POST['ee_shop_id'] ) && isset( $_POST['ee_shop_pw'] ) ) {
		if ( ! check_admin_referer( 'ekomi-integration-nonce', 'ee_nonce_field' ) ) {
			die( esc_attr( __( 'Validation Error!' ) ) );
		}

		$sanitized_data          = ei_sanitize_configuration_data( $_POST );

		$validation_errors = ei_validate_configuration_data( $sanitized_data );
		if ( ! empty( $validation_errors ) ) {
			$response = array(
				'status'       => 'error',
				'message'      => implode( ' ', $validation_errors ),
				'is_submited'  => true,
			);
		} else {
			$response                = ei_authenticate( $sanitized_data['shop_id'], $sanitized_data['shop_pw'] );
			$response['is_submited'] = true;
			if ( 'success' === $response['status'] ) {
				ei_update_options_data( $sanitized_data, $lang_code );

				/**
				 * Registering Hooks on selected order statuses.
				 */
				ei_register_hooks( $sanitized_data['statuses'] );
			}
		}
	}

	$languages_arr = ei_prepare_lang_array( $default_lang );
	$data          = ei_get_options_data( $lang_code );

	include 'configuration.php';
}

/**
 * Sanitizes the configurations data.
 *
 * @param array $post_data Form post data.
 *
 * @return array
 */
function ei_sanitize_configuration_data( $post_data ) {
	$configurations = array();

	$configurations['shop_id'] = intval( $post_data['ee_shop_id'] );
	$configurations['shop_pw'] = sanitize_text_field( $post_data['ee_shop_pw'] );

	$configurations['active']      = isset( $post_data['ee_active'] ) ?
		intval( $post_data['ee_active'] ) : 0;

    $configurations['t_and_c']      = isset( $post_data['ee_t_and_c'] ) ?
        intval( $post_data['ee_t_and_c'] ) : 1;

	$configurations['reviews'] = isset( $post_data['ee_product_reviews'] ) ?
		intval( $post_data['ee_product_reviews'] ) : 0;

	$configurations['mode'] = isset( $post_data['ee_mode'] ) ?
		sanitize_text_field( wp_unslash( $post_data['ee_mode'] ) ) : 'email';

	$configurations['show_prc_widget'] = isset( $post_data['ee_show_prc_widget'] ) ?
		intval( $post_data['ee_show_prc_widget'] ) : 0;

	$configurations['statuses'] = array();
	$post_order_statuses        = ( isset( $post_data['ee_order_statuses'] ) ) ?
		wp_unslash( $post_data['ee_order_statuses'] ) : array();
	if ( is_array( $post_order_statuses ) ) {
		foreach ( $post_order_statuses as $order_status_id => $order_status ) {
			$configurations['statuses'][] = sanitize_text_field( $order_status );
		}
	}

	$configurations['active']          = is_numeric( $configurations['active'] ) ? $configurations['active'] : 0;
	$configurations['reviews']         = is_numeric( $configurations['reviews'] ) ? $configurations['reviews'] : 0;
	$configurations['show_prc_widget'] = is_numeric( $configurations['show_prc_widget'] ) ? $configurations['show_prc_widget'] : 0;
	$modes_list                        = array( 'email', 'sms', 'fallback' );
	$configurations['mode']            = in_array( $configurations['mode'], $modes_list, true ) ? $configurations['mode'] : 'email';

	$configurations['product_identifier'] = isset( $post_data['ee_product_identifier'] ) ?
		sanitize_text_field( wp_unslash( $post_data['ee_product_identifier'] ) ) : PRODUCT_IDENTIFIER_ID;

	$configurations['exclude_products'] = isset( $post_data['ee_exclude_products'] ) ?
		sanitize_text_field( wp_unslash( $post_data['ee_exclude_products'] ) ) : ']';

    // Optional slider widget HTML/JS snippet (not required).
    // Trust admins: store raw snippet to preserve inline styles like 'display: none;'.
    $configurations['slider_widget_snippet'] = isset( $post_data['ee_slider_widget_snippet'] ) ?
        wp_unslash( $post_data['ee_slider_widget_snippet'] ) : '';

	$configurations['prc_widget_token'] = isset( $post_data['ee_prc_widget_token'] ) ?
		sanitize_text_field( wp_unslash( $post_data['ee_prc_widget_token'] ) ) : ']';

	$configurations['export_method'] = isset( $post_data['ee_export_method'] ) ?
		sanitize_text_field( wp_unslash( $post_data['ee_export_method'] ) ) : 'status';

	$configurations['turnaround_time'] = isset( $post_data['ee_turnaround_time'] ) ?
		intval( $post_data['ee_turnaround_time'] ) : 7;

	// eKomi SFF (Shop Feedback Form) configuration.
	$configurations['sff_enable'] = isset( $post_data[ SFF_OPTION_ENABLE ] ) ?
		intval( $post_data[ SFF_OPTION_ENABLE ] ) : 0;

	$configurations['sff_form_id'] = isset( $post_data[ SFF_OPTION_FORM_ID ] ) ?
		sanitize_text_field( wp_unslash( $post_data[ SFF_OPTION_FORM_ID ] ) ) : '';

	$configurations['sff_widget_width'] = isset( $post_data[ SFF_OPTION_WIDGET_WIDTH ] ) ?
		sanitize_text_field( wp_unslash( $post_data[ SFF_OPTION_WIDGET_WIDTH ] ) ) : '';

	$configurations['sff_widget_height'] = isset( $post_data[ SFF_OPTION_WIDGET_HEIGHT ] ) ?
		sanitize_text_field( wp_unslash( $post_data[ SFF_OPTION_WIDGET_HEIGHT ] ) ) : '';

	$configurations['sff_transaction_prefix'] = isset( $post_data[ SFF_OPTION_TRANSACTION_PREF ] ) ?
		sanitize_text_field( wp_unslash( $post_data[ SFF_OPTION_TRANSACTION_PREF ] ) ) : '';

	// eKomi Floating Widget configuration.
	$configurations['floating_enable'] = isset( $post_data[ FLOATING_OPTION_ENABLE ] ) ?
		intval( $post_data[ FLOATING_OPTION_ENABLE ] ) : 0;

	$configurations['floating_code'] = isset( $post_data[ FLOATING_OPTION_CODE ] ) ?
		wp_unslash( $post_data[ FLOATING_OPTION_CODE ] ) : '';

	return $configurations;
}

/**
 * Validates the configuration data.
 *
 * @param array $configurations Sanitized configuration data.
 *
 * @return array Array of validation error messages.
 */
function ei_validate_configuration_data( $configurations ) {
	$errors = array();

	if ( ! empty( $configurations['floating_enable'] ) && ENABLE_VALUE === (string) $configurations['floating_enable'] ) {
		if ( empty( trim( $configurations['floating_code'] ) ) ) {
			$errors[] = __( 'Floating Widget Code is required when the Floating Widget is enabled.', 'ekomi-integration' );
		}
	}

	if ( ! empty( $configurations['sff_enable'] ) && ENABLE_VALUE === (string) $configurations['sff_enable'] ) {
		if ( empty( trim( $configurations['sff_form_id'] ) ) ) {
			$errors[] = __( 'SFF Form ID is required when the SFF Popup is enabled.', 'ekomi-integration' );
		}
	}

	return $errors;
}

/**
 * Update the plugins options data.
 *
 * @param array  $configurations Sanitized configuration data.
 * @param string $lang_code      The selected language iso code.
 *
 * @return void
 */
function ei_update_options_data( $configurations, $lang_code ) {
	update_option( $lang_code . '_ee_active', $configurations['active'] );
	update_option( $lang_code . '_ee_shop_id', $configurations['shop_id'] );
	update_option( $lang_code . '_ee_shop_pw', $configurations['shop_pw'] );
	update_option( $lang_code . '_ee_product_reviews', $configurations['reviews'] );
	update_option( $lang_code . '_ee_mode', $configurations['mode'] );
	update_option('_ee_order_statuses', $configurations['statuses'] );
	update_option( $lang_code . '_ee_show_prc_widget', $configurations['show_prc_widget'] );
	update_option( $lang_code . '_ee_prc_widget_token', $configurations['prc_widget_token'] );
	update_option( $lang_code . '_ee_product_identifier', $configurations['product_identifier'] );
	update_option( $lang_code . '_ee_exclude_products', $configurations['exclude_products'] );
	update_option( $lang_code . '_ee_slider_widget_snippet', $configurations['slider_widget_snippet'] );
	update_option('_ee_export_method', $configurations['export_method'] );
    update_option( $lang_code . '_ee_t_and_c', $configurations['t_and_c'] );
	update_option('_ee_turnaround_time', $configurations['turnaround_time'] );

	// eKomi SFF (Shop Feedback Form) options – not language specific.
	update_option( SFF_OPTION_ENABLE, $configurations['sff_enable'] );
	update_option( SFF_OPTION_FORM_ID, $configurations['sff_form_id'] );
	update_option( SFF_OPTION_WIDGET_WIDTH, $configurations['sff_widget_width'] );
	update_option( SFF_OPTION_WIDGET_HEIGHT, $configurations['sff_widget_height'] );
	update_option( SFF_OPTION_TRANSACTION_PREF, $configurations['sff_transaction_prefix'] );

	// eKomi Floating Widget options – not language specific.
	update_option( FLOATING_OPTION_ENABLE, $configurations['floating_enable'] );
	update_option( FLOATING_OPTION_CODE, $configurations['floating_code'] );
}

/**
 * Gets default lang code.
 *
 * @return string
 */
function ei_get_default_lang_code() {
	$wpml_options = ei_get_wpml_settings();

	$default_lang = get_locale();
	if ( $wpml_options ) {
		$default_lang = $wpml_options['default_language'];
		if ( empty( $default_lang ) ) {
			$default_lang = get_locale();
		}
	}
	$default_lang = explode( '_', $default_lang )[0];

	return $default_lang;
}

/**
 * Prepares the shop language codes.
 *
 * @param string $default_lang The language iso code.
 *
 * @return array
 */
function ei_prepare_lang_array( $default_lang ) {
	$wpml_options = ei_get_wpml_settings();
	if ( $wpml_options ) {
		$available_langs = $wpml_options['active_languages'];
	} else {
		$available_langs = array();
	}

	$arr = array();

	if ( ! empty( $default_lang ) ) {
		$arr[ $default_lang ] = $default_lang;
	}

	foreach ( $available_langs as $key => $value ) {
		$arr[ $value ] = $value;
	}

	return $arr;
}

/**
 * Fetch order statuses from WooCommerce.
 *
 * @return array Order Status list from WooCommerce
 */
function ei_get_order_statuses() {
	return wc_get_order_statuses();
}

/**
 * Verifies eKomi account.
 *
 * @param int    $shop_id The shop id.
 * @param string $shop_secret The shop password.
 *
 * @return array
 */
function ei_authenticate( $shop_id, $shop_secret ) {
	$query_string = "auth={$shop_id}|{$shop_secret}&version=cust-1.0.0&type=request&charset=iso&app=PD-Woocommerce";
	$url = URL_GET_SETTINGS . '?' . $query_string;
	$response = wp_remote_get( $url );
	$server_output = wp_remote_retrieve_body( $response );
	if ( 'Access denied' === $server_output ) {
		$response = array(
			'status'  => 'error',
			'message' => __( 'Shop ID & Password Required', 'ekomi-integration' ),
		);
	} else {
		$response = array(
			'status'  => 'success',
			'message' => __( 'Settings Updated', 'ekomi-integration' ),
		);
	}

	return $response;
}

/**
 * Gets the configurations.
 *
 * @param string $lang_code The language code.
 *
 * @return array
 */
function ei_get_options_data( $lang_code ) {
	return array(
		'ee_active'             => get_option( $lang_code . '_ee_active', '0' ),
		'ee_shop_id'            => get_option( $lang_code . '_ee_shop_id', '' ),
		'ee_shop_pw'            => get_option( $lang_code . '_ee_shop_pw', '' ),
		'ee_product_reviews'    => get_option( $lang_code . '_ee_product_reviews', '0' ),
		'ee_mode'               => get_option( $lang_code . '_ee_mode', '0' ),
		'ee_order_statuses'     => get_option('_ee_order_statuses', '' ),
		'ee_product_identifier' => get_option( $lang_code . '_ee_product_identifier', '' ),
		'ee_exclude_products'   => get_option( $lang_code . '_ee_exclude_products', '' ),
		'ee_slider_widget_snippet' => get_option( $lang_code . '_ee_slider_widget_snippet', '' ),
		'ee_show_prc_widget'    => get_option( $lang_code . '_ee_show_prc_widget', '0' ),
		'ee_prc_widget_token'   => get_option( $lang_code . '_ee_prc_widget_token', '' ),
		'ee_export_method'      => get_option('_ee_export_method', 'status' ),
        'ee_t_and_c'            => get_option( $lang_code . '_ee_t_and_c', '1' ),
		'ee_turnaround_time'    => get_option('_ee_turnaround_time', '7' ),
		// eKomi SFF (Shop Feedback Form) options.
		'ekomisff_enable'             => get_option( SFF_OPTION_ENABLE, '0' ),
		'ekomisff_form_id'            => get_option( SFF_OPTION_FORM_ID, '' ),
		'ekomisff_widget_width'       => get_option( SFF_OPTION_WIDGET_WIDTH, '' ),
		'ekomisff_widget_height'      => get_option( SFF_OPTION_WIDGET_HEIGHT, '' ),
		'ekomisff_transaction_prefix' => get_option( SFF_OPTION_TRANSACTION_PREF, '' ),
		// eKomi Floating Widget options.
		'ekomifloating_enable'        => get_option( FLOATING_OPTION_ENABLE, '0' ),
		'ekomifloating_code'          => get_option( FLOATING_OPTION_CODE, '' ),
	);
}

/**
 * Gets common configurations for all languages.
 *
 * @return array
 */
function ei_get_common_options() {
	return array(
		'ee_order_statuses'     => get_option('_ee_order_statuses', '' ),
		'ee_export_method'      => get_option('_ee_export_method', 'status' ),
		'ee_turnaround_time'    => get_option('_ee_turnaround_time', '7' ),
	);
}

/**
 * Registers woocommerce hooks on selected order statuses.
 *
 * @param array $statuses Order statuses.
 *
 * @return void
 */
function ei_register_hooks( $statuses ) {
	if ( is_array( $statuses ) ) {
		foreach ( $statuses as $status ) {
			$status_hook = substr( $status, 3 );
			add_action( 'woocommerce_order_status_' . $status_hook, 'ekomiIntegratioExportOrderData' );
		}
	}
}

/**
 * Gets wpml settings.
 *
 * @return mixed|null|void
 */
function ei_get_wpml_settings() {
	$active_plugins = (array) get_option( 'active_plugins', array() );

	if ( ! empty( $active_plugins ) && in_array( 'sitepress-multilingual-cms/sitepress.php', $active_plugins, true ) ) {
		return get_option( 'icl_sitepress_settings' );
	}

	return null;
}

/**
 * Loads text domain.
 *
 * @param string $domain          Text domain.
 * @param bool   $deprecated      Deprication.
 * @param bool   $plugin_rel_path The plugin url path.
 * @param string $locale          The locale id.
 *
 * @return bool
 */
function ei_load_textdomain( $domain, $deprecated = false, $plugin_rel_path = false, $locale ) {
	$mofile = $domain . '-' . $locale . '.mo';

	/**
	 * Try to load from the languages directory first.
	 */
	if ( load_textdomain( $domain, WP_LANG_DIR . '/plugins/' . $mofile ) ) {
		return true;
	}

	if ( false !== $plugin_rel_path ) {
		$path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' );
	} elseif ( false !== $deprecated ) {
		_deprecated_argument( __FUNCTION__, '2.7.0' );
		$path = ABSPATH . trim( $deprecated, '/' );
	} else {
		$path = WP_PLUGIN_DIR;
	}

	return load_textdomain( $domain, $path . '/' . $mofile );
}

add_filter( 'cron_schedules', __NAMESPACE__ . '\\ei_register_cron' );

/**
 * Registers cron task.
 *
 * @param array $schedules Cron schedules.
 *
 * @return mixed
 */
function ei_register_cron( $schedules ) {
	$schedules['1min'] = array(
		'interval' => 60, // 1 minute in seconds
		'display'  => __( 'Once Every Minute' ),
	);
	return $schedules;
}

/**
 * Schedule an action if it's not already scheduled.
 */
if ( ! wp_next_scheduled( 'ei_export_orders_cron' ) ) {
	wp_schedule_event( time(), 'daily', 'ei_export_orders_cron' );
}

require __DIR__ . '/export.php';

/**
 * Hook into that action that'll fire daily.
 */
add_action( 'ei_export_orders_cron', __NAMESPACE__ . '\\ei_export_orders' );

/**
 * Exports orders for eKomi.
 *
 * @return void
 */
function ei_export_orders() {
	$configurations = ei_get_common_options();
	if ( EXPORT_METHOD_CRON === $configurations['ee_export_method'] ) {
		$days_in_seconds = $configurations['ee_turnaround_time'] * ONE_DAY_IN_SECONDS;
		$args   = array(
			'date_created' => '>' . ( time() - $days_in_seconds ),
			'limit' => -1
		);
		$orders = wc_get_orders( $args );
		foreach ( $orders as $order ) {
			ei_export_order_data( $order->get_id(), true );
		}

		echo 'eKomi integration orders exported.';
	}
}

/**
 * Outputs the eKomi SFF popup on the WooCommerce Thank You page.
 *
 * @param int $order_id WooCommerce order id.
 *
 * @return void
 */
function ei_render_sff_popup( $order_id ) {
	if ( ! $order_id ) {
		return;
	}

	// Check if SFF feature is enabled.
	$sff_enable = get_option( SFF_OPTION_ENABLE, '0' );
	if ( ENABLE_VALUE !== (string) $sff_enable ) {
		return;
	}

	// Get SFF settings.
	$form_id            = get_option( SFF_OPTION_FORM_ID, '' );
	$widget_width       = get_option( SFF_OPTION_WIDGET_WIDTH, '600px' );
	$widget_height      = get_option( SFF_OPTION_WIDGET_HEIGHT, '600px' );
	$transaction_prefix = get_option( SFF_OPTION_TRANSACTION_PREF, '' );

	// Ensure width and height have units (default to px if missing).
	if ( ! empty( $widget_width ) && ! preg_match( '/\d+(px|%|em|rem)$/i', $widget_width ) ) {
		$widget_width = $widget_width . 'px';
	}
	if ( ! empty( $widget_height ) && ! preg_match( '/\d+(px|%|em|rem)$/i', $widget_height ) ) {
		$widget_height = $widget_height . 'px';
	}

	// Set defaults if empty.
	$widget_width  = ! empty( $widget_width ) ? $widget_width : '600px';
	$widget_height = ! empty( $widget_height ) ? $widget_height : '600px';

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

	$transaction_id = $transaction_prefix . $order_id;

	// Resolve shop ID from existing configuration (use default language context).
	$default_lang = ei_get_default_lang_code();
	$config       = ei_get_options_data( $default_lang );
	$shop_id      = isset( $config['ee_shop_id'] ) ? $config['ee_shop_id'] : '';

	// Collect product IDs from the order.
	$product_ids = array();
	if ( class_exists( 'WC_Order' ) ) {
		$order = wc_get_order( $order_id );
		if ( $order ) {
			foreach ( $order->get_items() as $item ) {
				$product = $item->get_product();
				if ( $product ) {
					$product_ids[] = (string) $product->get_id();
				}
			}
		}
	}

	?>
	<div id="sff_127__widget-container" style="width:<?php echo esc_attr( $widget_width ); ?>;height:<?php echo esc_attr( $widget_height ); ?>;min-width:300px;min-height:300px;display:block;margin:20px auto;overflow:auto;"></div>
			<script type="text/javascript">
				(function(w) {
					if (w._ekomiScriptLoaded) return;
					w._ekomiScriptLoaded = true;
					w['_ekomiServerUrl']    = '<?php echo esc_js( SFF_BASE_URL ); ?>';
					w['_ekomiShopId']       = '<?php echo esc_js( $shop_id ); ?>';
					w['_ekomiFormId']       = '<?php echo esc_js( $form_id ); ?>';
					w['_ekomiTransactionId'] = '<?php echo esc_js( $transaction_id ); ?>';
					w['_ekomiProductIds']   = <?php echo wp_json_encode( $product_ids ); ?>;
					w['_ekomiWidgetWidth']  = '<?php echo esc_js( $widget_width ); ?>';
					w['_ekomiWidgetHeight'] = '<?php echo esc_js( $widget_height ); ?>';
					w['_ekomiEmbedWidget']      = '0';
					w['_ekomiDisableAutoClose'] = '0';
					w['_ekomiEmail']            = '';
					var s = document.createElement('script');
					s.src = w['_ekomiServerUrl'] + '/script/widget.js?v=' + new Date().getTime();
					s.async = true;
					var e = document.getElementsByTagName('script')[0];
					e.parentNode.insertBefore(s, e);
				})(window);
			</script>
	<script type="text/javascript">
		(function () {
			var widgetContainer = null;


			function initializeEkomiSffWidget() {
				widgetContainer = document.getElementById('sff_127__widget-container');
				
				if (!widgetContainer) {
					return;
				}

				// Ensure widget container is visible.
				widgetContainer.style.display = 'block';
				widgetContainer.style.visibility = 'visible';
				widgetContainer.style.opacity = '1';
			}

			if (document.readyState === 'complete' || document.readyState === 'interactive') {
				setTimeout(initializeEkomiSffWidget, 50);
			} else {
				document.addEventListener('DOMContentLoaded', function () {
					setTimeout(initializeEkomiSffWidget, 50);
				});
			}
		})();
	</script>
	<?php
}

add_action( 'woocommerce_thankyou', __NAMESPACE__ . '\\ei_render_sff_popup', 20 );

/**
 * Do curl request to eKomi System.
 *
 * @param string $url         The api endpoint.
 * @param string $method      The api method.
 * @param string $post_fields Post fields data.
 * @param array  $headers     The api headers.
 *
 * @return string
 */
function ei_do_curl( $url, $method = 'GET', $post_fields = '', $headers = array() ) {
	$arguments = array(
		'method'    => $method,
		'sslverify' => true,
		'timeout'   => 15,
		'headers'   => $headers,
		'body'      => wp_json_encode( $post_fields ),
	);

	$response = wp_remote_request( $url, $arguments );
	$body = wp_remote_retrieve_body( $response );

	return $body;
}

/**
 * Enqueues frontend styles for eKomi widgets.
 *
 * @return void
 */
function ei_enqueue_frontend_styles() {
	if ( ! is_product() ) {
		return;
	}

	$floating_enable = get_option( FLOATING_OPTION_ENABLE, '0' );
	if ( ENABLE_VALUE !== (string) $floating_enable ) {
		return;
	}

	wp_enqueue_style(
		'ekomi-floating-widget',
		plugins_url( 'css/ekomi-floating-widget.css', __FILE__ ),
		array(),
		PLUGIN_VERSION,
		'all'
	);
}

add_action( 'wp_enqueue_scripts', __NAMESPACE__ . '\\ei_enqueue_frontend_styles' );

/**
 * Register ShortCodes.
 */
require_once 'ekomi-prc-widget.php';
require_once 'ekomi-slider-widget.php';
require_once 'ekomi-floating-widget.php';