<?php
/**
 * eKomi Floating Widget Integration
 *
 * @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
 */

namespace ekomi_integration;

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

/**
 * Prepares the eKomi Floating Widget output.
 *
 * @return string|null The widget HTML output, or null if widget cannot be rendered.
 */
function ei_prepare_floating_widget_output() {
	$floating_enable = get_option( FLOATING_OPTION_ENABLE, '0' );
	if ( ENABLE_VALUE !== (string) $floating_enable ) {
		return null;
	}

	$floating_code = get_option( FLOATING_OPTION_CODE, '' );
	if ( empty( $floating_code ) ) {
		return null;
	}

	$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'] : '';

	if ( empty( $shop_id ) ) {
		return null;
	}

	global $product;
	if ( ! $product ) {
		return null;
	}

	$product_identifier_type = isset( $config['ee_product_identifier'] ) ? $config['ee_product_identifier'] : PRODUCT_IDENTIFIER_ID;

	if ( PRODUCT_IDENTIFIER_SKU === $product_identifier_type ) {
		$product_id = $product->get_sku();
	} else {
		$product_id = $product->get_id();
	}

	if ( empty( $product_id ) || empty( $shop_id ) ) {
		return null;
	}

	$widget_output = str_replace( 'productIDwillbeHere', esc_js( $product_id ), $floating_code );
	$widget_output = preg_replace(
		"/(w\['_customerId'\]\s*=\s*)\d+/",
		'${1}' . esc_js( $shop_id ),
		$widget_output
	);

	return $widget_output;
}

/**
 * Renders the floating widget on single product pages.
 *
 * @return void
 */
function ei_render_floating_widget_single() {
	$output = ei_prepare_floating_widget_output();
	if ( $output ) {
		echo '<div class="ekomi-floating-widget-single">' . $output . '</div>';
	}
}

add_action( 'woocommerce_single_product_summary', __NAMESPACE__ . '\\ei_render_floating_widget_single', 6 );