<?php
namespace Elementor;

use Elementor\Core\Files\Fonts\Google_Font;
use Elementor\Core\Utils\Collection;

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

/**
 * Elementor utils.
 *
 * Elementor utils handler class is responsible for different utility methods
 * used by Elementor.
 *
 * @since 1.0.0
 */
class Utils {

	const DEPRECATION_RANGE = 0.4;

	const EDITOR_BREAK_LINES_OPTION_KEY = 'elementor_editor_break_lines';

	/**
	 * A list of safe tags for `validate_html_tag` method.
	 */
	const ALLOWED_HTML_WRAPPER_TAGS = [
		'a',
		'article',
		'aside',
		'button',
		'div',
		'footer',
		'h1',
		'h2',
		'h3',
		'h4',
		'h5',
		'h6',
		'header',
		'main',
		'nav',
		'p',
		'section',
		'span',
	];

	const EXTENDED_ALLOWED_HTML_TAGS = [
		'iframe' => [
			'iframe' => [
				'allow' => true,
				'allowfullscreen' => true,
				'frameborder' => true,
				'height' => true,
				'loading' => true,
				'name' => true,
				'referrerpolicy' => true,
				'sandbox' => true,
				'src' => true,
				'width' => true,
			],
		],
		'svg' => [
			'svg' => [
				'aria-hidden' => true,
				'aria-labelledby' => true,
				'class' => true,
				'height' => true,
				'role' => true,
				'viewbox' => true,
				'width' => true,
				'xmlns' => true,
			],
			'g' => [
				'fill' => true,
			],
			'title' => [
				'title' => true,
			],
			'path' => [
				'd' => true,
				'fill' => true,
			],
		],
		'image' => [
			'img' => [
				'srcset' => true,
				'sizes' => true,
			],
		],
	];

	/**
	 * Variables for free to pro upsale modal promotions
	 */

	const ANIMATED_HEADLINE = 'animated_headline';

	const CTA = 'cta';

	const VIDEO_PLAYLIST = 'video_playlist';

	const TESTIMONIAL_WIDGET = 'testimonial_widget';

	const IMAGE_CAROUSEL = 'image_carousel';

	/**
	 * Whether WordPress CLI mode is enabled or not.
	 *
	 * @access public
	 * @static
	 *
	 * @return bool
	 */
	public static function is_wp_cli() {
		return defined( 'WP_CLI' ) && WP_CLI;
	}

	/**
	 * Whether script debug is enabled or not.
	 *
	 * @since 1.0.0
	 * @access public
	 * @static
	 *
	 * @return bool
	 */
	public static function is_script_debug() {
		return defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG;
	}

	/**
	 * Whether Elementor debug is enabled or not.
	 *
	 * @access public
	 * @static
	 *
	 * @return bool
	 */
	public static function is_elementor_debug() {
		return defined( 'ELEMENTOR_DEBUG' ) && ELEMENTOR_DEBUG;
	}

	/**
	 * Whether Elementor test mode is enabled or not.
	 *
	 * @access public
	 * @static
	 *
	 * @return bool
	 */
	public static function is_elementor_tests() {
		return defined( 'ELEMENTOR_TESTS' ) && ELEMENTOR_TESTS;
	}

	/**
	 * Get pro link.
	 *
	 * Retrieve the link to Elementor Pro.
	 *
	 * @since 1.7.0
	 * @access public
	 * @static
	 *
	 * @param string $link URL to Elementor pro.
	 *
	 * @return string Elementor pro link.
	 */
	public static function get_pro_link( $link ) {
		static $theme_name = false;

		if ( ! $theme_name ) {
			$theme_obj = wp_get_theme();
			if ( $theme_obj->parent() ) {
				$theme_name = $theme_obj->parent()->get( 'Name' );
			} else {
				$theme_name = $theme_obj->get( 'Name' );
			}

			$theme_name = sanitize_key( $theme_name );
		}

		$link = add_query_arg( 'utm_term', $theme_name, $link );

		return $link;
	}

	/**
	 * Replace URLs.
	 *
	 * Replace old URLs to new URLs. This method also updates all the Elementor data.
	 *
	 * @since 2.1.0
	 * @static
	 * @access public
	 *
	 * @param string $from
	 * @param string $to
	 *
	 * @return string
	 * @throws \Exception Replace URL exception.
	 */
	public static function replace_urls( $from, $to ) {
		$from = trim( $from );
		$to = trim( $to );

		if ( empty( $from ) ) {
			throw new \Exception( 'Couldn’t replace your address because the old URL was not provided. Try again by entering the old URL.' );
		}

		if ( empty( $to ) ) {
			throw new \Exception( 'Couldn’t replace your address because the new URL was not provided. Try again by entering the new URL.' );
		}

		if ( $from === $to ) {
			throw new \Exception( 'Couldn’t replace your address because both of the URLs provided are identical. Try again by entering different URLs.' );
		}

		$is_valid_urls = ( filter_var( $from, FILTER_VALIDATE_URL ) && filter_var( $to, FILTER_VALIDATE_URL ) );

		if ( ! $is_valid_urls ) {
			throw new \Exception( 'Couldn’t replace your address because at least one of the URLs provided are invalid. Try again by entering valid URLs.' );
		}

		global $wpdb;
		$escaped_from = str_replace( '/', '\\/', $from );
		$escaped_to = str_replace( '/', '\\/', $to );
		$meta_value_like = '[%'; // meta_value LIKE '[%' are json formatted

		$rows_affected = $wpdb->query(
			$wpdb->prepare(
				"UPDATE {$wpdb->postmeta} " .
				'SET `meta_value` = REPLACE(`meta_value`, %s, %s) ' .
				"WHERE `meta_key` = '_elementor_data' AND `meta_value` LIKE %s;",
				$escaped_from,
				$escaped_to,
				$meta_value_like
			)
		);

		if ( false === $rows_affected ) {
			throw new \Exception( 'An error occurred while replacing URL\'s.' );
		}

		// Allow externals to replace-urls, when they have to.
		$rows_affected += (int) apply_filters( 'elementor/tools/replace-urls', 0, $from, $to );

		Plugin::$instance->files_manager->clear_cache();
		Google_Font::clear_cache();

		return sprintf(
			/* translators: %d: Number of rows. */
			_n( '%d database row affected.', '%d database rows affected.', $rows_affected, 'elementor' ),
			$rows_affected
		);
	}

	/**
	 * Is post supports Elementor.
	 *
	 * Whether the post supports editing with Elementor.
	 *
	 * @since 1.0.0
	 * @access public
	 * @static
	 *
	 * @param int $post_id Optional. Post ID. Default is `0`.
	 *
	 * @return string True if post supports editing with Elementor, false otherwise.
	 */
	public static function is_post_support( $post_id = 0 ) {
		$post_type = get_post_type( $post_id );

		$is_supported = self::is_post_type_support( $post_type );

		/**
		 * Is post type support.
		 *
		 * Filters whether the post type supports editing with Elementor.
		 *
		 * @since 1.0.0
		 * @deprecated 2.2.0 Use `elementor/utils/is_post_support` hook Instead.
		 *
		 * @param bool $is_supported Whether the post type supports editing with Elementor.
		 * @param int $post_id Post ID.
		 * @param string $post_type Post type.
		 */
		$is_supported = apply_filters( 'elementor/utils/is_post_type_support', $is_supported, $post_id, $post_type );

		/**
		 * Is post support.
		 *
		 * Filters whether the post supports editing with Elementor.
		 *
		 * @since 2.2.0
		 *
		 * @param bool $is_supported Whether the post type supports editing with Elementor.
		 * @param int $post_id Post ID.
		 * @param string $post_type Post type.
		 */
		$is_supported = apply_filters( 'elementor/utils/is_post_support', $is_supported, $post_id, $post_type );

		return $is_supported;
	}


	/**
	 * Is post type supports Elementor.
	 *
	 * Whether the post type supports editing with Elementor.
	 *
	 * @since 2.2.0
	 * @access public
	 * @static
	 *
	 * @param string $post_type Post Type.
	 *
	 * @return string True if post type supports editing with Elementor, false otherwise.
	 */
	public static function is_post_type_support( $post_type ) {
		if ( ! post_type_exists( $post_type ) ) {
			return false;
		}

		if ( ! post_type_supports( $post_type, 'elementor' ) ) {
			return false;
		}

		return true;
	}

	/**
	 * Get placeholder image source.
	 *
	 * Retrieve the source of the placeholder image.
	 *
	 * @since 1.0.0
	 * @access public
	 * @static
	 *
	 * @return string The source of the default placeholder image used by Elementor.
	 */
	public static function get_placeholder_image_src() {
		$placeholder_image = ELEMENTOR_ASSETS_URL . 'images/placeholder.png';

		/**
		 * Get placeholder image source.
		 *
		 * Filters the source of the default placeholder image used by Elementor.
		 *
		 * @since 1.0.0
		 *
		 * @param string $placeholder_image The source of the default placeholder image.
		 */
		$placeholder_image = apply_filters( 'elementor/utils/get_placeholder_image_src', $placeholder_image );

		return $placeholder_image;
	}

	/**
	 * Generate random string.
	 *
	 * Returns a string containing a hexadecima