<?php

/**
 * Plugin: WP Compress – Instant Performance & Speed Optimization
 * Description: Legitimate script handling for WP Compress Optimizer
 */
class wps_rewriteLogic
{

    public static $imageCounter;
    public static $settings;
    public static $options;
    public static $siteUrl;
    public static $homeUrl;
    public static $zoneName;
    public static $randomHash;
    public static $siteUrlScheme;
    public static $excludedList;
    public static $lazyExcludeList;
    public static $defaultExcludedList;
    public static $externalUrlEnabled;
    public static $externalUrlExcluded;
    public static $emojiRemove;
    public static $preloaderAPI;
    public static $replaceAllLinks;
    public static $pictureWebpEnabled = false;
    public static $pictureAvifEnabled = false;

    // CSS / JS Variables
    public static $fonts;
    public static $css;
    public static $cssMinify;
    public static $cssImgUrl;
    public static $js;
    public static $jsMinify;

    // Integrations
    public static $perfMattersActive;
    public static $brizyActive;
    public static $brizyCache;
    public static $revSlider;

    // Lazy Tags
    public static $lazyLoadedImages;
    public static $lazyLoadedImagesLimit;
    public static $lazyLoadSkipFirstImages;
    public static $loadedImagesSt;
    public static $loadedImagesStLimit;
    public static $lazyOverride;
    public static $delayJsOverride;
    public static $deferJsOverride;
    public static $nativeLazyEnabled;

    // Api Params
    public static $apiUrl;
    public static $exif;
    public static $webp;
    public static $isRetina;
    public static $retinaEnabled;
    public static $adaptiveEnabled;
    public static $webpEnabled;
    public static $lazyEnabled;
    public static $removeSrcset;
    public static $isMobile;

    public static $removedCSS;
    public static $excludes;
    public static $excludes_class;
    public static $isAjax;
    public static $isAmp;

    public static $page_excludes;
    public static $post_id;
    public static $page_excludes_files;

    public function __construct()
    {
        self::$imageCounter = 0;
        self::$settings = get_option(WPS_IC_SETTINGS);
        self::$options = get_option(WPS_IC_OPTIONS);
        self::$randomHash = 0;
        self::$preloaderAPI = 0;
        self::$isMobile = false;
        self::$isAmp = new wps_ic_amp();

        self::$settings = $this->runMissingSettings(self::$settings);

        self::$isAjax = (function_exists("wp_doing_ajax") && wp_doing_ajax()) || (defined('DOING_AJAX') && DOING_AJAX);

        if (!self::$isAjax && !empty($_POST)) {
            foreach ($_POST as $key => $value) {
                if (strpos($key, 'ajax') !== false) {
                    self::$isAjax = true;
                    break;
                }
            }
        }

        self::$excludes_class = new wps_ic_excludes();
        self::$excludes = get_option('wpc-excludes');
        global $post;

        if ($this->is_home_url()) {
            self::$post_id = 'home';
            self::$page_excludes = isset(self::$excludes['page_excludes']['home']) ? self::$excludes['page_excludes']['home'] : [];
            self::$page_excludes_files = isset(self::$excludes['page_excludes_files']['home']) ? self::$excludes['page_excludes_files']['home'] : [];
        } elseif (!empty(get_queried_object_id())) {
            self::$post_id = get_queried_object_id();
            self::$page_excludes = isset(self::$excludes['page_excludes'][self::$post_id]) ? self::$excludes['page_excludes'][self::$post_id] : [];
            self::$page_excludes_files = isset(self::$excludes['page_excludes_files'][self::$post_id]) ? self::$excludes['page_excludes_files'][self::$post_id] : [];
        } else if (!empty($post->ID)) {
            self::$post_id = $post->ID;
            self::$page_excludes = isset(self::$excludes['page_excludes'][self::$post_id]) ? self::$excludes['page_excludes'][self::$post_id] : [];
            self::$page_excludes_files = isset(self::$excludes['page_excludes_files'][self::$post_id]) ? self::$excludes['page_excludes_files'][self::$post_id] : [];
        } else {
            self::$post_id = false;
            self::$page_excludes = [];
            self::$page_excludes_files = [];
        }

        // Lazy Limits
        self::$lazyLoadedImages = 0;
        self::$lazyLoadedImagesLimit = 1;

        if (empty(self::$settings['lazySkipCount'])) {
            self::$lazyLoadSkipFirstImages = 4;
        } else {
            self::$lazyLoadSkipFirstImages = self::$settings['lazySkipCount'];
        }

        if (!empty(self::$page_excludes) && isset(self::$page_excludes['skip_lazy']) && self::$page_excludes['skip_lazy'] !== '') {
            self::$lazyLoadSkipFirstImages = self::$page_excludes['skip_lazy'];
        }

        self::$isAmp = new wps_ic_amp();

        /**
         * self::$isAjax was required for Ajax Filtering to work in Precommerce
         */
        if ((!empty($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'PreloaderAPI') !== false) || !empty($_GET['dbg_preload'])) {
            self::$lazyLoadedImagesLimit = 9999;
            self::$preloaderAPI = 1;
            self::$lazyEnabled = 0;
            self::$nativeLazyEnabled = 0;
            self::$adaptiveEnabled = 0;
        }

        self::$loadedImagesSt = 0;
        self::$loadedImagesStLimit = 6;

        self::$nativeLazyEnabled = self::$settings['nativeLazy'];

        $this->setupSiteUrl();

        $this->setupExcludes();
        $this->setupApiParams();


        if ($this->isMobile()) {
            $this->setMobile();
        }

        $this->removeEmoji();
        $this->revSliderActive();
        $this->perfMatters();
        $this->Brizy();

        self::$externalUrlEnabled = 'false';

        // External URL Enabled?
        if (!empty(self::$settings['external-url'])) {
            self::$externalUrlEnabled = self::$settings['external-url'];
        }
    }

    public function runMissingSettings($settings)
    {
        $required = ['css', 'css_image_urls', 'css_minify', 'js', 'js_minify', 'emoji-remove', 'preserve_exit', 'fonts'];
        foreach ($required as $key => $value) {
            if (empty($settings[$key]) || !isset($settings[$key])) {
                $settings[$key] = '';
            }
        }

        return $settings;
    }

    public function is_home_url()
    {
        $home_url = rtrim(home_url(), '/');
        $current_url = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
        $current_url = rtrim($current_url, '/');
        return $home_url === $current_url;
    }

    public function setupSiteUrl()
    {
        if (!is_multisite()) {
            self::$siteUrl = site_url();
            self::$homeUrl = home_url();
        } else {
            $current_blog_id = get_current_blog_id();
            switch_to_blog($current_blog_id);

            self::$siteUrl = network_site_url();
            self::$homeUrl = home_url();
        }

        self::$siteUrl = preg_replace('#^https?://#', '', self::$siteUrl);
        self::$homeUrl = preg_replace('#^https?://#', '', self::$homeUrl);


        self::$siteUrl = trim(self::$siteUrl, '/');
        self::$homeUrl = trim(self::$homeUrl, '/');

        $cfCname = get_option(WPS_IC_CF_CNAME);
        $cf = get_option(WPS_IC_CF);
        $custom_cname = (!empty($cf['settings']['cdn']) && !empty($cfCname)) ? $cfCname : get_option('ic_custom_cname');
        if (empty($custom_cname) || !$custom_cname) {
            self::$zoneName = get_option('ic_cdn_zone_name');
        } else {
            self::$zoneName = $custom_cname;
        }

        self::$siteUrlScheme = parse_url(self::$siteUrl, PHP_URL_SCHEME);
    }

    public function setupExcludes()
    {
        self::$defaultExcludedList = ['redditstatic', 'ai-uncode', 'gtm', 'instagram.com', 'fbcdn.net', 'twitter', 'google', 'coinbase', 'cookie', 'schema', 'recaptcha', 'data:image', 'stats.jpg'];

        self::$lazyExcludeList = get_option('wpc-ic-lazy-exclude');
        self::$excludedList = get_option('wpc-ic-external-url-exclude');

        if (!is_array(self::$excludedList)) {
            self::$externalUrlExcluded = explode("\n", self::$excludedList);
        } else {
            self::$externalUrlExcluded = self::$excludedList;
        }
    }

    public function setupApiParams()
    {
        $conditions = ['css_image_urls', 'css_minify', 'js_minify', 'preserve_exif', 'emoji-remove', 'css', 'js'];
        foreach ($conditions as $key => $condition) {
            if (is_array($condition)) {
                if (!isset(self::$settings[$condition[0]][$condition[1]])) {
                    self::$settings[$condition[0]][$condition[1]] = '0';
                }
            } else {
                if (!isset(self::$settings[$condition])) {
                    self::$settings[$condition] = '0';
                }
            }
        }

        self::$css = self::$settings['css'];
        self::$cssImgUrl = self::$settings['css_image_urls'];
        self::$cssMinify = self::$settings['css_minify'];
        self::$js = self::$settings['js'];
        self::$jsMinify = self::$settings['js_minify'];
        self::$emojiRemove = self::$settings['emoji-remove'];
        self::$exif = self::$settings['preserve_exif'];

        if (isset(self::$settings['fonts']) && !empty(self::$settings['fonts'])) {
            self::$fonts = self::$settings['fonts'];
        } else {
            self::$fonts = '0';
        }

        self::$isRetina = '0';
        self::$webp = '0';
        self::$externalUrlEnabled = 'false';

        if (empty(self::$settings['remove-srcset'])) {
            self::$settings['remove-srcset'] = '0';
        }

        self::$removeSrcset = self::$settings['remove-srcset'];
        self::$lazyEnabled = self::$settings['lazy'];
        self::$adaptiveEnabled = self::$settings['generate_adaptive'];

        if (isset(self::$page_excludes['adaptive'])) {
            self::$adaptiveEnabled = self::$page_excludes['adaptive'];
        }

        self::$webpEnabled = self::$settings['generate_webp'];
        self::$retinaEnabled = self::$settings['retina'];

        if (!empty(self::$settings['replace-all-link'])) {
            self::$replaceAllLinks = self::$settings['replace-all-link'];
        } else {
            self::$replaceAllLinks = '0';
        }

        if ((!empty($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'PreloaderAPI') !== false) || !empty($_GET['dbg_preload'])) {
            self::$lazyLoadedImagesLimit = 9999;
            self::$preloaderAPI = 1;
            self::$lazyEnabled = 0;
            self::$adaptiveEnabled = 0;
        }

        if (!empty($_GET['disableLazy'])) {
            self::$lazyEnabled = '0';
        }

        //
        if (!empty(self::$webpEnabled) && self::$webpEnabled == '1') {
            self::$webp = '1';
        } else {
            self::$webp = '0';
        }

        if (!empty(self::$retinaEnabled) && self::$retinaEnabled == '1') {
            if (isset($_COOKIE["ic_pixel_ratio"])) {
                if ($_COOKIE["ic_pixel_ratio"] >= 2) {
                    self::$isRetina = '1';
                }
            }
        }

        // If Optimization Quality is Not set...
        if (empty(self::$settings['optimization']) || self::$settings['optimization'] == '' || self::$settings['optimization'] == '0') {
            self::$settings['optimization'] = 'i';
        }

        // Optimization Switch from Legacy
        switch (self::$settings['optimization']) {
            case 'intelligent':
                self::$settings['optimization'] = 'i';
                break;
            case 'ultra':
                self::$settings['optimization'] = 'u';
                break;
            case 'lossless':
                self::$settings['optimization'] = 'l';
                break;
        }

        if (!empty($_GET['dbg']) && $_GET['dbg'] == 'direct') {
            if (!empty($_GET['custom_server'])) {
                $custom_server = sanitize_text_field($_GET['custom_server']);
                if (preg_match('/^[a-z0-9\-]+\.zapwp\.net$/i', $custom_server)) {
                    self::$zoneName = $custom_server . '/key:' . self::$options['api_key'];
                }
            }
        }

        if (!empty(self::$exif) && self::$exif == '1') {
            self::$apiUrl = 'https://' . self::$zoneName . '/q:' . self::$settings['optimization'] . '/e:1';
        } else {
            self::$apiUrl = 'https://' . self::$zoneName . '/q:' . self::$settings['optimization'];
        }
    }


    public function isMobile()
    {
        if (!empty($_GET['simulate_mobile'])) {
            return true;
        }

        if (isset($_SERVER['HTTP_USER_AGENT'])) {
            $userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);

            // Define an array of mobile device keywords to check against
            $mobileKeywords = ['android', 'iphone', 'ipad', 'windows phone', 'blackberry', 'tablet', 'mobile'];

            // Check if the user agent contains any of the mobile device keywords
            foreach ($mobileKeywords as $keyword) {
                if (strpos($userAgent, $keyword) !== false) {
                    return true; // Found a match, so it's a mobile device
                }
            }
        }

        return false;
    }

    public function setMobile()
    {
        self::$isMobile = true;
        self::$retinaEnabled = false;
        self::$isRetina = '0';
    }

    public function removeEmoji()
    {
        if (!empty(self::$emojiRemove) && self::$emojiRemove == '1') {
            remove_action('wp_head', 'print_emoji_detection_script', 7);
            remove_action('admin_print_scripts', 'print_emoji_detection_script');
            remove_action('wp_print_styles', 'print_emoji_styles');
            remove_action('admin_print_styles', 'print_emoji_styles');
            remove_filter('the_content_feed', 'wp_staticize_emoji');
            remove_filter('comment_text_rss', 'wp_staticize_emoji');
            remove_filter('wp_mail', 'wp_staticize_emoji_for_email');
            add_filter('emoji_svg_url', '__return_false');
            add_filter('tiny_mce_plugins', [$this, 'disable_emojicons_tinymce']);
        }
    }

    public function revSliderActive()
    {
        if (class_exists('RevSliderFront')) {
            self::$revSlider = true;
        }

        self::$revSlider = false;
    }

    public function perfMatters()
    {
        self::$perfMattersActive = false;

        //Perfmatters settings check
        if (function_exists('perfmatters_version_check')) {
            self::$perfMattersActive = self::isPerfMattersLazyActive();

            $perfmatters_options = get_option('perfmatters_options');

            if (!empty($perfmatters_options['assets']['delay_js']) && $perfmatters_options['assets']['delay_js']) {
                self::$delayJsOverride = 1;
            }

            if (!empty($perfmatters_options['assets']['defer_js']) && $perfmatters_options['assets']['defer_js']) {
                self::$deferJsOverride = 1;
            }

            if (!empty($perfmatters_options['lazyload']['lazy_loading']) && $perfmatters_options['lazyload']['lazy_loading']) {
                self::$lazyOverride = 1;
            }
        }
    }

    public static function isPerfMattersLazyActive()
    {
        if (defined('PERFMATTERS_ITEM_NAME')) {
            $options = get_option('perfmatters_options');
            if (!empty($options['lazyload']['lazy_loading'])) {
                return true;
            }
        }

        return false;
    }

    public function Brizy()
    {
        if (defined('BRIZY_VERSION')) {
            self::$brizyCache = get_option('wps_ic_brizy_cache');
            self::$brizyActive = true;
        } else {
            self::$brizyActive = false;
        }
    }

    public function disable_emojicons_tinymce($plugins)
    {
        if (is_array($plugins)) {
            return array_diff($plugins, ['wpemoji']);
        } else {
            return [];
        }
    }

    public function revSliderReplace($html)
    {
        $html = preg_replace_callback('/data-thumb=[\'|"](.*?)[\'|"]/i', [__CLASS__, 'revSlider_Replace_DataThumb'], $html);

        return $html;
    }

    public function revSlider_Replace_DataThumb($image)
    {
        $image_url = $image[1];

        // Check if it's a supported image format
        $supported_formats = ['jpg', 'jpeg', 'png', 'gif', 'svg', 'webp'];
        $extension = strtolower(pathinfo(parse_url($image_url, PHP_URL_PATH), PATHINFO_EXTENSION));

        if (!in_array($extension, $supported_formats)) {
            return $image[0];
        }

        $webp = '/wp:' . self::$webp;
        if (self::isExcludedFrom('webp', $image_url)) {
            $webp = '';
        }

        if (self::isExcludedLink($image_url) || $this->defaultExcluded($image_url) || empty($image_url)) {
            return $image[0];
        } else {
            $NewSrc = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this->getCurrentMaxWidth(1, false) . '/u:' . self::reformatUrl($image_url);

            return 'data-thumb="' . $NewSrc . '"';
        }

        return $image[0];
    }

    public static function isExcludedFrom($setting, $link)
    {

        if (isset(self::$excludes[$setting])) {
            $excludeList = self::$excludes[$setting];
            if (!empty($excludeList)) {
                foreach ($excludeList as $key => $value) {
                    if (strpos($link, $value) !== false && $value != '') {
                        return true;
                    }
                }
            }
        }

        if ($setting == 'cdn') {
            // Fast string position check first, then regex if needed
            // Fix for i0.wp.com etc. image hosting
            if (strpos($link, '.wp.com') !== false && preg_match('/\bi[0-9a-zA-Z]{1,3}\.wp\.com\b/', $link)) {
                return true;
            }
        }

        return false;
    }

    public static function isExcludedLink($link)
    {
        /**
         * Is the link in excluded list?
         */
        if (empty($link)) {
            return false;
        }

        if (strpos($link, '.css') !== false || strpos($link, '.js') !== false) {
            foreach (self::$defaultExcludedList as $i => $excluded_string) {
                if (strpos($link, $excluded_string) !== false) {
                    return true;
                }
            }
        }

        if (!empty(self::$excludedList)) {
            foreach (self::$excludedList as $i => $value) {
                if (strpos($link, $value) !== false) {
                    // Link is excluded
                    return true;
                }
            }
        }

        if (self::isExcludedFrom('cdn', $link)) {
            return true;
        }

        return false;
    }

    public function defaultExcluded($string)
    {
        foreach (self::$defaultExcludedList as $i => $excluded_string) {
            if (strpos($string, $excluded_string) !== false) {
                return true;
            }
        }

        return false;
    }

    public function specialChars($url)
    {
        if (!self::$brizyActive) {
            $url = htmlspecialchars($url);
        }

        return $url;
    }

    public function fonts($html)
    {
        $html = preg_replace_callback('/https?:[^)\'\'"]+\.(woff2|woff|eot|ttf)/i', [__CLASS__, 'replaceFonts'], $html);

        return $html;
    }

    public function replaceFonts($url)
    {
        $url = $url[0];

        if (!empty(self::$settings['font-subsetting']) && self::$settings['font-subsetting'] == '1') {
            if (strpos($url, self::$zoneName) === false) {
                if (strpos($url, '.woff') !== false || strpos($url, '.woff2') !== false || strpos($url, '.eot') !== false || strpos($url, '.ttf') !== false) {

                    if (strpos($url, 'icon') !== false || strpos($url, 'awesome') !== false || strpos($url, 'lightgallery') !== false || strpos($url, 'gallery') !== false || strpos($url, 'side-cart-woocommerce') !== false) {
                        $newUrl = 'https://' . self::$zoneName . '/m:0/a:' . self::reformatUrl($url);
                    } else {
                        $newUrl = 'https://' . self::$zoneName . '/font:true/a:' . self::reformatUrl($url);
                    }

                    return $newUrl;
                }
            }
        }

        return $url;
    }

    public static function reformatUrl($url, $remove_site_url = false)
    {
        $url = trim($url);

        // Check if url is maybe a relative URL (no http or https)
        if (strpos($url, 'http') === false) {
            // Check if url is maybe absolute but without http/s
            if (strpos($url, '//') === 0) {
                // Just needs http/s
                $url = 'https:' . $url;
            } else {
                $url = str_replace('../wp-content', 'wp-content', $url);
                $url_replace = str_replace('/wp-content', 'wp-content', $url);
                $url = self::$siteUrl;
                $url = rtrim($url, '/');
                $url .= '/' . $url_replace;
            }
        }

        $formatted_url = $url;

        if (strpos($formatted_url, '?brizy_media') === false && strpos($formatted_url, '?resize') === false) {
            $formatted_url = explode('?', $formatted_url);
            $formatted_url = $formatted_url[0];
        }

        if ($remove_site_url) {
            $formatted_url = str_replace(self::$siteUrl, '', $formatted_url);
            $formatted_url = str_replace(str_replace(['https://', 'http://'], '', self::$siteUrl), '', $formatted_url);
            $formatted_url = str_replace(addcslashes(self::$siteUrl, '/'), '', $formatted_url);
            $formatted_url = ltrim($formatted_url, '\/');
            $formatted_url = ltrim($formatted_url, '/');
        }

        if (!empty(self::$cdnEnabled) && self::$cdnEnabled == '1') {
            if (self::$randomHash == 0 && (strpos($formatted_url, '.css') !== false)) {
                $formatted_url .= '?icv=' . WPS_IC_HASH;
            }

            if (self::$randomHash == 0 && strpos($formatted_url, '.js') !== false) {
                $formatted_url .= '?js_icv=' . WPS_IC_JS_HASH;
            }
        }

        return $formatted_url;
    }

    public function allLinks($html)
    {
        $html = preg_replace_callback('/https?:(\/\/[^"\']*\.(?:svg|css|js|ico|icon))/i', [__CLASS__, 'cdnAllLinks'], $html);

        return $html;
    }

    public function cdnAllLinks($image)
    {
        $src_url = $image[0];

        if ($this->defaultExcluded($src_url)) {
            return $src_url;
        }

        if (self::isExcludedFrom('cdn', $src_url)) {
            return $src_url;
        }

        if (strpos($src_url, self::$zoneName) !== false) {
            return $src_url;
        }

        if (!self::isExcludedLink($src_url)) {
            // External is disabled?
            if (self::$externalUrlEnabled == '0' || empty(self::$externalUrlEnabled)) {
                if (!self::imageUrlMatchingSiteUrl($src_url)) {
                    return $src_url;
                }
            }

            if (strpos($src_url, self::$zoneName) === false) {
                if (strpos($src_url, '.css') !== false) {
                    if (self::$css == "1") {
                        $fileMinify = self::$cssMinify;
                        if (self::isExcluded('css_minify', $src_url)) {
                            $fileMinify = '0';
                        }

                        if (!empty(self::$settings['font-subsetting']) && self::$settings['font-subsetting'] == '1') {
                            $fileMinify = '1';
                        }

                        $newSrc = 'https://' . self::$zoneName . '/m:' . $fileMinify . '/a:' . self::reformatUrl($src_url);
                    }
                } elseif (strpos($src_url, '.js') !== false) {
                    if (self::$js == "1") {
                        $fileMinify = self::$jsMinify;
                        if (self::isExcluded('js_minify', $src_url)) {
                            $fileMinify = '0';
                        }

                        $newSrc = 'https://' . self::$zoneName . '/m:' . $fileMinify . '/a:' . self::reformatUrl($src_url);
                    }
                } else {
                    $newSrc = 'https://' . self::$zoneName . '/m:0/a:' . self::reformatUrl($src_url);
                }

                return $newSrc;
            }
        }

        return $image[0];
    }

    /**
     * Is link matching the site url?
     *
     * @param $image
     *
     * @return bool
     */
    public static function imageUrlMatchingSiteUrl($image)
    {
        $site_url = self::$siteUrl;
        $image = str_replace(['https://', 'http://'], '', $image);
        $site_url = str_replace(['https://', 'http://'], '', $site_url);

        if (strpos($image, '.css') !== false || strpos($image, '.js') !== false) {
            foreach (self::$defaultExcludedList as $i => $excluded_string) {
                if (strpos($image, $excluded_string) !== false) {
                    return false;
                }
            }
        }

        if (strpos($image, $site_url) === false) {
            // Image not on site
            return false;
        } else {
            // Image on site
            return true;
        }
    }

    public static function isExcluded($image_element, $image_link = '')
    {
        $image_path = '';

        if (empty($image_link)) {
            preg_match('@src="([^"]+)"@', $image_element, $match_url);
            if (!empty($match_url)) {
                $image_path = $match_url[1];
                $basename_original = basename($match_url[1]);
            } else {
                $basename_original = basename($image_element);
            }
        } else {
            $image_path = $image_link;
            $basename_original = basename($image_link);
        }

        preg_match("/([0-9]+)x([0-9]+)\.[a-zA-Z0-9]+/", $basename_original, $matches); //the filename suffix way
        if (empty($matches)) {
            // Full Image
            $basename = $basename_original;
        } else {
            // Some thumbnail
            $basename = str_replace('-' . $matches[1] . 'x' . $matches[2], '', $basename_original);
        }

        /**
         * Is this image lazy excluded?
         */
        if (!empty(self::$lazyExcludeList) && !empty(self::$lazyEnabled) && self::$lazyEnabled == '1') {
            //return 'asd';
            foreach (self::$lazyExcludeList as $i => $lazy_excluded) {
                if (strpos($basename, $lazy_excluded) !== false) {
                    return true;
                }
            }
        } elseif (!empty(self::$excludedList)) {
            foreach (self::$excludedList as $i => $excluded) {
                if (strpos($basename, $excluded) !== false) {
                    return true;
                }
            }
        }

        if (!empty(self::$lazyExcludeList) && in_array($basename, self::$lazyExcludeList)) {
            return true;
        }

        if (!empty(self::$excludedList) && in_array($basename, self::$excludedList)) {
            return true;
        }

        return false;
    }

    public function externalUrls($html)
    {
        $html = preg_replace_callback('/https?:[^)\s]+\.(jpg|jpeg|png|gif|svg|css|js|ico|icon)(?![^.\w]*\.[^.\w]*)/i', [__CLASS__, 'cdnExternalUrls'], $html);

        return $html;
    }

    public function cdnExternalUrls($image)
    {
        $src_url = $image[0];
        $width = 1;

        if (self::$isAmp->isAmp()) {
            $width = 600;
        }

        if (strpos($src_url, 'optimize.js') !== false) {
            return $src_url;
        }

        if (self::isExcludedFrom('cdn', $src_url) || $src_url == 'https://www.ico') {
            return $src_url;
        }

        // Is URL Matching the Site Url?
        if (strpos($src_url, self::$zoneName) !== false) {
            return $src_url;
        }

        $webp = '/wp:' . self::$webp;
        if (self::isExcludedFrom('webp', $src_url)) {
            $webp = '';
        }

        if (self::isExcludedFrom('cdn', $src_url)) {
            return $src_url;
        }

        if (!self::isExcludedLink($src_url)) {
            if (strpos($src_url, self::$zoneName) === false) {
                // Check if the URL is an image, then check if it's instagram etc...
                foreach (self::$defaultExcludedList as $i => $excluded_string) {
                    if (strpos($src_url, $excluded_string) !== false) {
                        return $src_url;
                    }
                }

                $newSrc = $src_url;
                if (strpos($src_url, '.css') !== false) {
                    if (self::$css == "1") {

                        if (!empty(self::$settings['font-subsetting']) && self::$settings['font-subsetting'] == '1') {
                            self::$cssMinify = '1';
                        }

                        $newSrc = 'https://' . self::$zoneName . '/m:' . self::$cssMinify . '/a:' . self::reformatUrl($src_url);
                    }
                } elseif (strpos($src_url, '.js') !== false) {
                    if (self::$js == "1") {
                        $newSrc = 'https://' . self::$zoneName . '/m:' . self::$jsMinify . '/a:' . self::reformatUrl($src_url);
                    }
                } else {
                    if (strpos($src_url, '.svg') !== false) {
                        $newSrc = 'https://' . self::$zoneName . '/m:0/a:' . self::reformatUrl($src_url);
                    } else {
                        $newSrc = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth($width, self::isExcludedFrom('adaptive', $src_url)) . '/u:' . self::reformatUrl($src_url);
                    }
                }
                return $newSrc;
            }
        }

        return $image[0];
    }

    public static function getCurrentMaxWidth($Width, $skipped = false)
    {
        if ($skipped) {
            return '1';
        }

        if (self::$isMobile && self::$adaptiveEnabled) {
            $mobile_width = get_option('wpc-min-mobile-width');
            return $mobile_width ? $mobile_width : 400;
        }

        if ($Width == 'logo') {
            return '1';
        }

        return $Width;
    }

    public function favIcon($html)
    {
        $html = preg_replace_callback('/<link\s+([^>]+[\s\'"])?rel\s*=\s*[\'"]icon[\'"]/is', [__CLASS__, 'checkFavIcon'], $html);

        return $html;
    }

    public function checkFavIcon($html)
    {
        if (empty($html)) {
            return 'no favicon';
        } else {
            return print_r([$html], true);
        }
    }

    public function runCriticalAjax($html)
    {

        if (str_contains($html, 'wpcRunningCritical')) {
            return $html;
        } else {
            $html = preg_replace_callback('/<\/body>/si', [__CLASS__, 'addCriticalAjax'], $html, 1);
        }

        return $html;
    }

    public function addCriticalAjax($args)
    {
        global $post;

        // NEW API  does not need this code:
        //return '</body>';

        if (!empty($_GET['test_adding_critical_ajax'])) {
            $script = print_r($post, true);
            $script .= print_r($realUrl = $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], true);
            return $script;
        }

        if ($this->isWooCartOrCheckout()) {
            return '</body>';
        }

        $script = '';
        if (isset($post) && !empty($post->ID)) {

            $realUrl = $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

            // TODO: Issues if DelayJS is disabled
            $script = <<<SCRIPT
<script type="text/javascript">
    let wpcRunningCritical = false;

    function handleUserInteraction() {
        if (typeof ngf298gh738qwbdh0s87v_vars === 'undefined') {
            return;
        }
        
        if (wpcRunningCritical) {
            return;
        }
        
        wpcRunningCritical = true;

        var xhr = new XMLHttpRequest();
        xhr.open("POST", ngf298gh738qwbdh0s87v_vars.ajaxurl, true);
        xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
        xhr.onreadystatechange = function() {
            if (xhr.readyState == 4 && xhr.status == 200) {
                var response = JSON.parse(xhr.responseText);
                if (response.success) {
                    console.log("Started Critical Call");
                }
            }
        };
        
        xhr.send("action=wpc_send_critical_remote&postID={$post->ID}&realUrl={$realUrl}");

        removeEventListeners();
    }

    function removeEventListeners() {
        document.removeEventListener("keydown", handleUserInteraction);
        document.removeEventListener("mousedown", handleUserInteraction);
        document.removeEventListener("mousemove", handleUserInteraction);
        document.removeEventListener("touchmove", handleUserInteraction);
        document.removeEventListener("touchstart", handleUserInteraction);
        document.removeEventListener("touchend", handleUserInteraction);
        document.removeEventListener("wheel", handleUserInteraction);
        document.removeEventListener("visibilitychange", handleUserInteraction);
        document.removeEventListener("load", handleUserInteraction);
    }

    document.addEventListener("keydown", handleUserInteraction);
    document.addEventListener("mousedown", handleUserInteraction);
    document.addEventListener("mousemove", handleUserInteraction);
    document.addEventListener("touchmove", handleUserInteraction);
    document.addEventListener("touchstart", handleUserInteraction);
    document.addEventListener("touchend", handleUserInteraction);
    document.addEventListener("wheel", handleUserInteraction);
    document.addEventListener("visibilitychange", handleUserInteraction);
    document.addEventListener("load", handleUserInteraction);
</script>
SCRIPT;


        }
        return $script . '</body>';
    }

    public function isWooCartOrCheckout()
    {
        // Check if WooCommerce is active
        if (class_exists('WooCommerce')) {
            // Check if current page is Cart or Checkout
            if (is_cart() || is_checkout()) {
                return true;
            }
        }
        return false;
    }

    public function addCritical($html)
    {
        $criticalCss = $this->addCriticalCSS($html);
        $criticalCss = $this->filterCriticalFontFaces($criticalCss);

        // Extract font preloads AFTER filtering — only preload fonts that survive
        if (!empty(self::$settings['preload-crit-fonts']) && self::$settings['preload-crit-fonts'] == '1') {
            $preloadLinks = $this->extractCriticalFontPreloads($criticalCss);
            $criticalCss = $preloadLinks . $criticalCss;
        }

        if (!empty($_GET['extractCrit'])) {
            return print_r([$criticalCss], true);
        }

        $html = str_replace('<!--WPC_INSERT_CRITICAL-->', $criticalCss, $html);
        return $html;
    }

    public function addCriticalCSS($html)
    {
        $output = '';

        $criticalCSS = new wps_criticalCss();
        $criticalCSSExists = $criticalCSS->criticalExists(true);


        if (!empty($criticalCSSExists) && empty($_GET['removeCritical'])) {
            if (file_exists($criticalCSSExists['desktop']) && file_exists($criticalCSSExists['mobile'])) {
                $criticalCSSContent_Desktop = file_get_contents($criticalCSSExists['desktop']);
                $criticalCSSContent_Mobile = file_get_contents($criticalCSSExists['mobile']);

                if (str_contains($criticalCSSContent_Desktop, '<body>') || str_contains($criticalCSSContent_Mobile, '<body>')) {
                    // Do Nothing, it's html
                } else {

                    // Strip content before "/* Preload Fonts */" marker if present (legacy separator)
                    $getCSSContent = function ($cssContent) {
                        $commentPos = strpos($cssContent, '/* Preload Fonts */');
                        return $commentPos !== false ? substr($cssContent, $commentPos + strlen('/* Preload Fonts */')) : $cssContent;
                    };

                    $criticalCSSContent_Desktop = $getCSSContent($criticalCSSContent_Desktop);
                    $criticalCSSContent_Mobile = $getCSSContent($criticalCSSContent_Mobile);

                    // Output critical CSS — preload links are now added by addCritical() after filtering
                    if ($this->isMobile() && !empty($criticalCSSContent_Mobile)) {
                        $output .= "\r\n" . '<style type="text/css" id="wpc-critical-css" class="wpc-critical-css-mobile">' . $criticalCSSContent_Mobile . '</style>';
                    } elseif (!empty($criticalCSSContent_Desktop)) {
                        $output .= "\r\n" . '<style type="text/css" id="wpc-critical-css" class="wpc-critical-css-desktop">' . $criticalCSSContent_Desktop . '</style>';
                    }

                }
            }
        }

        return $output;
    }

    function filterCriticalFontFaces(string $critical): string
    {
        $blockedFonts = get_option('wps_ic_remove_fonts');
        if (empty($blockedFonts)) {
            return $critical;
        }

        // Match @font-face { ... } blocks (multiline, non-greedy)
        $pattern = '/@font-face\s*\{.*?\}/is';

        return preg_replace_callback($pattern, function ($match) use ($blockedFonts) {
            $fontFaceBlock = $match[0];

            foreach ($blockedFonts as $blocked) {
                if (stripos($fontFaceBlock, $blocked) !== false) {
                    // Remove this @font-face block
                    return '';
                }
            }

            // Keep this @font-face block
            return $fontFaceBlock;
        }, $critical);
    }

    /**
     * Extract font URLs from critical CSS @font-face blocks and generate preload links.
     * Runs AFTER filterCriticalFontFaces() so we only preload fonts with surviving declarations.
     * The critical CSS API already runs trimUnusedFontFaces() — only above-fold fonts are included.
     *
     * Safeguards:
     * - Max 4 preloads to prevent preload storms
     * - woff2 prioritized (smallest, widest support)
     * - Icon fonts excluded by comprehensive pattern
     * - Data URIs skipped
     * - URLs escaped with esc_url()
     * - Correct MIME type per extension
     * - Deduplication by base URL
     */
    private function extractCriticalFontPreloads(string $criticalCss): string
    {
        if (empty($criticalCss)) return '';

        // Extract only @font-face blocks — don't match random url() in other rules
        if (!preg_match_all('/@font-face\s*\{[^}]+\}/is', $criticalCss, $fontFaceBlocks)) {
            return '';
        }
        $fontFaceCss = implode(' ', $fontFaceBlocks[0]);

        // Extract font file URLs from the @font-face blocks
        $fontPattern = '/url\((\'|")?([^\'")\s]+\.(woff2|woff|ttf|otf|eot))\1?\)/i';
        if (!preg_match_all($fontPattern, $fontFaceCss, $matches, PREG_SET_ORDER)) {
            return '';
        }

        // Prioritize woff2 (smallest, most modern), then woff
        usort($matches, function ($a, $b) {
            $order = ['woff2' => 0, 'woff' => 1, 'ttf' => 2, 'otf' => 3, 'eot' => 4];
            return ($order[strtolower($a[3])] ?? 5) - ($order[strtolower($b[3])] ?? 5);
        });

        $maxPreloads = 4;
        $loadedFonts = [];
        $preloadLinks = '';

        foreach ($matches as $match) {
            if (count($loadedFonts) >= $maxPreloads) break;

            $fontUrl = $match[2];

            // Skip icon fonts
            if (preg_match('/icon|awesome|fa[- 0-9]|material|dashicon|glyphicon|icomoon|ionicon|line.?awesome|themify|elegant|feather|simple.?line/i', $fontUrl)) {
                continue;
            }

            // Skip data URIs
            if (strpos($fontUrl, 'data:') === 0) continue;

            // Deduplicate by base URL (strip query strings)
            $baseUrl = strtok($fontUrl, '?');
            if (in_array($baseUrl, $loadedFonts)) continue;

            // Correct MIME type from extension
            $ext = strtolower($match[3]);
            $typeMap = [
                'woff2' => 'font/woff2',
                'woff'  => 'font/woff',
                'ttf'   => 'font/ttf',
                'otf'   => 'font/otf',
                'eot'   => 'application/vnd.ms-fontobject',
            ];
            $type = $typeMap[$ext] ?? 'font/woff2';

            $preloadLinks .= '<link rel="preload" href="' . esc_url($fontUrl) . '" as="font" type="' . esc_attr($type) . '" crossorigin="anonymous">' . "\n";
            $loadedFonts[] = $baseUrl;
        }

        return $preloadLinks;
    }

    public function optimizeGoogleFonts($html)
    {
        $pattern = '/<link\s+[^>]*href=["\']([^"\']*fonts\.googleapis\.com\/css[^"\']*)["\'][^>]*>/i';
        $html = preg_replace_callback($pattern, [__CLASS__, 'optimizeGoogleFontsRewrite'], $html);
        return $html;
    }

    public function optimizeGoogleFontsRewrite($html)
    {
        $html = '';
        return $html;
    }

    public function lazyCSS($html)
    {
        // Run only if the marker exists (handles " or ')
        if (!preg_match('/id=(["\'])wpc-critical-css\1/si', $html)) {
            return $html;
        }

        $html = preg_replace_callback('/<link(.*?)>/si', [__CLASS__, 'cssLinkLazy'], $html);
        $html = preg_replace_callback('/(?<!<defs>)<style\b(.*?)<\/style>/si', [__CLASS__, 'cssStyleLazy'], $html);

        return $html;
    }

    public function cssStyleLazy($html)
    {
        $fullTag = $html[0];

        $criticalCSS = new wps_criticalCss();
        $criticalCSSExists = $criticalCSS->criticalExists();
        if (empty($criticalCSSExists)) {
            return $fullTag;
        }

        // Not Mobile
        $lazyCss = 'wpc-stylesheet';

        if (strpos($fullTag, 'wpc-critical-css') !== false) {
            return $fullTag;
        }

        if (strpos($fullTag, 'rs6') !== false) {
            //Removed in 6.60.39 - leftover from when we were excluding rev slider from delayJS?
            //return $fullTag;
        }


        if (strpos($fullTag, 'elementor-post') !== false || strpos($fullTag, '/elementor/') !== false || strpos($fullTag, 'admin-bar') !== false) {
            $lazyCss = 'wpc-mobile-stylesheet';
        } elseif (strpos($fullTag, 'preload') !== false) {
            $lazyCss = 'wpc-mobile-stylesheet';
        }

        if (self::$excludes_class->strInArray($fullTag, self::$excludes_class->criticalCSSExcludes())) {
            return $fullTag;
        }

        if (strpos($fullTag, 'type=') !== false) {
            // Define the regular expression pattern
            $pattern = '/<style(\s*[^>]*)\s+type=("|\')text\/css("|\')([^>]*)>/i';

            // Replace the type attribute in style tags
            $fullTag = preg_replace($pattern, '<style$1 type=\'' . $lazyCss . '\'$4>', $fullTag);
        } else {
            $fullTag = str_replace('<style', '<style type="' . $lazyCss . '"', $fullTag);
        }

        return $fullTag;
    }

    public function cssLinkLazy($html)
    {

        $fullTag = $html[0];

        if (strpos($fullTag, 'preload') !== false || strpos($fullTag, 'prefetch') !== false) {
            return $fullTag;
        }

        $criticalCSS = new wps_criticalCss();
        $criticalCSSExists = $criticalCSS->criticalExists();

        if (!empty($_GET['dbgLazyCss0'])) {
            return print_r([$criticalCSSExists], true);
        }

        if (empty($criticalCSSExists)) {
            return $fullTag;
        }

        // Not Mobile
        $lazyCss = 'wpc-stylesheet';

        if (!empty($_GET['dbgLazyCss'])) {
            return print_r([$html], true);
        }

        if (strpos($fullTag, 'wpc-critical-css') !== false) {
            return $fullTag;
        }

        if (strpos($fullTag, 'rs6') !== false) {
            //Removed in 6.60.39 - leftover from when we were excluding rev slider from delayJS?
            //return $fullTag;
        }


        if (strpos($fullTag, 'elementor-post') !== false || strpos($fullTag, '/elementor/') !== false || strpos($fullTag, 'admin-bar') !== false) {
            $lazyCss = 'wpc-mobile-stylesheet';
        } elseif (strpos($fullTag, 'preload') !== false) {
            $lazyCss = 'wpc-mobile-stylesheet';
        }

        if (!empty($_GET['dbgLazyCss2'])) {
            return print_r([$fullTag, self::$excludes_class->criticalCSSExcludes()], true);
        }

        if (self::$excludes_class->strInArray($fullTag, self::$excludes_class->criticalCSSExcludes())) {
            return $fullTag;
        }

        preg_match('/(href)\s*\=["\']?((?:.(?!["\']?\s+(?:\S+)=|\s*\/?[>"\']))+.)["\']?/is', $fullTag, $href);

        if (!empty($_GET['dbgLazyCss3'])) {
            return print_r([$fullTag, $href], true);
        }

        if (!empty($href[2])) {

            // Lazy load google fonts?
            if (strpos($href[2], 'fonts.googleapis.com/css') !== false) {
                // Google Fonts Hack?
                if (strpos($href[2], 'display=swap') === false) {
                    $newHref = $href[2] . '&display=swap';
                } else {
                    $newHref = $href[2];
                }

                $gfonts = '<link rel="wpc-mobile-stylesheet" href="' . $newHref . '" as="style" onload="this.onload=null;this.rel=\'stylesheet\'"/>';
                return $gfonts;
            } elseif (strpos($href[2], self::$siteUrl) === false) {
                //Removed in 6.60.39
                //return $fullTag;
                $lazyCss = 'wpc-mobile-stylesheet';
            } else {
                $lazyCss = 'wpc-mobile-stylesheet';
            }
        }

        preg_match('/(rel)\s*\=["\']?((?:.(?!["\']?\s+(?:\S+)=|\s*\/?[>"\']))+.)["\']?/is', $fullTag, $linkRel);

        if (!empty($_GET['dbgLazyCss4'])) {
            return print_r([$fullTag, $linkRel], true);
        }

        if (!empty($linkRel)) {
            if (!empty($linkRel[2])) {
                $relTag = $linkRel[0]; // rel="stylesheet"
                $relKey = $linkRel[1]; // rel
                $relValue = $linkRel[2]; // stylesheet

                if ($relValue == 'stylesheet') {
                    $newTag = str_replace($relValue, $lazyCss, $relTag);
                    $fullTag = str_replace($relTag, $newTag, $fullTag);
                }
            }
        }

        preg_match('/(type)\s*\=["\']?((?:.(?!["\']?\s+(?:\S+)=|\s*\/?[>"\']))+.)["\']?/is', $fullTag, $linkType);

        if (!empty($_GET['dbgLazyCss5'])) {
            return print_r([$fullTag, $linkType], true);
        }

        if (!empty($linkType)) {
            if (!empty($linkType[2])) {
                $relTag = $linkType[0]; // type="text/css"
                $relKey = $linkType[1]; // type
                $relValue = $linkType[2]; // text/css

                if ($relValue == 'text/css') {
                    $newTag = str_replace($relValue, 'wpc-text/css', $relTag);
                    $fullTag = str_replace($relTag, $newTag, $fullTag);
                }
            }
        }

        return $fullTag;
    }

    public function cssToFooter($html)
    {
        $html = preg_replace_callback('/<\/body>/si', [__CLASS__, 'cssToFooterRender'], $html);

        return $html;
    }

    public function cssToFooterRender($html)
    {
        return self::$removedCSS . '</body>';
    }

    public function encodeIframe($html)
    {
        $html = preg_replace_callback('/<iframe.*?\/iframe>/i', [__CLASS__, 'iframeEncode'], $html);

        return $html;
    }

    public function decodeIframe($html)
    {
        $html = preg_replace_callback('/\[iframe\-wpc\](.*?)\[\/iframe\-wpc\]/i', [__CLASS__, 'iframeDecode'], $html);

        return $html;
    }

    public function iframeEncode($html)
    {
        $html = base64_encode($html[0]);

        if (!empty($_GET['dbg']) && $_GET['dbg'] == 'bas64_encode') {
            return print_r([$html], true);
        }

        return '[iframe-wpc]' . $html . '[/iframe-wpc]';
    }

    public function iframeDecode($html)
    {
        if (!empty($_GET['dbg']) && $_GET['dbg'] == 'bas64_decode') {
            return print_r([$html], true);
        }

        $html = base64_decode($html[1]);

        if (!empty($_GET['dbg']) && $_GET['dbg'] == 'after_base64_decode') {
            return $html;
        }

        return $html;
    }

    public function scriptContent($html)
    {
        $html = preg_replace_callback('/<script\s[^>]*(?<=type=\"text\/template\")*>.*?<\/script>/is', [__CLASS__, 'scriptContentTag'], $html);

        return $html;
    }

    public function scriptContentTag($html)
    {
        if (!empty($_GET['dbg']) && $_GET['dbg'] == 'script') {
            return print_r([$html], true);
        }

        if (strpos($html[0], 'text/template') !== false || strpos($html[0], 'text/x-template') !== false) {
            return $html[0];
        }

        $html = preg_replace_callback('/<img[^>]*>/si', [__CLASS__, 'imageTagAsset'], $html[0]);

        return $html;
    }

    public function imageTagAsset($image)
    {

        $image[0] = trim($image[0]);
        $addslashes = false;

        if (strpos($image[0], '$') !== false) {
            return $image[0];
        }

        if (!empty($_GET['dbg']) && $_GET['dbg'] == 'image_asset_array') {
            return print_r([str_replace('<img', 'sad', $image[0])], true);
        }

        if (strpos($image[0], '=\"') !== false || strpos($image[0], "=\'") !== false) {
            $addslashes = true;
            $image[0] = stripslashes($image[0]);
        }

        if (strpos($image[0], '//') !== false) {
            // Replace any protocol-relative URLs with https: prefix
            // Pattern matches //domain.com/path pattern in HTML attributes
            $image[0] = preg_replace('/(["\']|\s|=)\/\/([a-zA-Z0-9.-]+\.[a-zA-Z]{2,}\/[^"\'\s>]*)/', '$1https://$2', $image[0]);
        }

        if (strpos($_SERVER['REQUEST_URI'], 'embed') !== false) {
            $image[0] = $this->maybe_addslashes($image[0], $addslashes);

            return $image[0];
        }

        // File has already been replaced
        if ($this->defaultExcluded($image[0])) {
            $image[0] = $this->maybe_addslashes($image[0], $addslashes);

            return $image[0];
        }

        // File is not an image
        if (!self::isImage($image[0])) {
            $image[0] = $this->maybe_addslashes($image[0], $addslashes);

            return $image[0];
        }

        if ((self::$externalUrlEnabled == 'false' || self::$externalUrlEnabled == '0') && !self::imageUrlMatchingSiteUrl($image[0])) {
            $image[0] = $this->maybe_addslashes($image[0], $addslashes);

            return $image[0];
        }

        // File is excluded
        if (self::isExcluded($image[0])) {
            $image[0] = $this->maybe_addslashes($image[0], $addslashes);

            return $image[0];
        }

        $img_tag = $image[0];
        $original_img_tag['original_tags'] = $this->getAllTags($image[0], []);

        preg_match('/src=["|\']([^"]+)["|\']/', $img_tag, $image_src);

        if (strpos($image_src[1], '$') !== false) {
            $image[0] = $this->maybe_addslashes($image[0], $addslashes);

            return $image[0];
        }

        if (!empty($image_src[1])) {
            $NewSrc = 'https://' . self::$zoneName . '/m:0/a:' . $this->specialChars(self::reformatUrl($image_src[1]));
            $img_tag = str_replace($image_src[1], $NewSrc, $img_tag);
        }

        // TODO: Was required for some sites that were having slashes
        $img_tag = $this->maybe_addslashes($img_tag, true);

        return $img_tag;
    }

    public function maybe_addslashes($image, $addslashes = false)
    {
        if ($addslashes) {
            $image = addslashes($image);
        }

        return $image;
    }

    public static function isImage($image)
    {
        if (strpos($image, '.webp') === false && strpos($image, '.jpg') === false && strpos($image, '.jpeg') === false && strpos($image, '.png') === false && strpos($image, '.ico') === false && strpos($image, '.svg') === false && strpos($image, '.gif') === false) {
            return false;
        } else {
            // Serve JPG Enabled?
            if (strpos($image, '.jpg') !== false || strpos($image, '.jpeg') !== false) {
                // is JPEG enabled
                if (empty(self::$settings['serve']['jpg']) || self::$settings['serve']['jpg'] == '0') {
                    return false;
                }
            }

            // Serve GIF Enabled?
            if (strpos($image, '.gif') !== false) {
                // is JPEG enabled
                if (empty(self::$settings['serve']['gif']) || self::$settings['serve']['gif'] == '0') {
                    return false;
                }
            }

            // Serve PNG Enabled?
            if (strpos($image, '.png') !== false) {
                // is PNG enabled
                if (empty(self::$settings['serve']['png']) || self::$settings['serve']['png'] == '0') {
                    return false;
                }
            }

            // Serve SVG Enabled?
            if (strpos($image, '.svg') !== false) {
                // is SVG enabled
                if (empty(self::$settings['serve']['svg']) || self::$settings['serve']['svg'] == '0') {
                    return false;
                }
            }

            return true;
        }
    }

    public function getAllTags($image, $ignore_tags = ['src', 'srcset', 'data-src', 'data-srcset'])
    {
        $found_tags = [];

        if (strpos($image, 'trp-gettext') !== false) {
            //TRP inserts <trp-gettext data-trpgettextoriginal=19> ... </trp-gettext> to translate alt tag, breaks our usuall regex
            preg_match_all('/\s*([a-zA-Z-:]+)\s*=\s*("|\')(.*?)\2/is', $image, $image_tags);

            if (!empty($image_tags[1])) {
                $image_tags[2] = $image_tags[3];
            }

        } else {
            $image = html_entity_decode($image);
            #preg_match_all('/([a-zA-Z\-\_]*)\s*\=["\']?((?:.(?!["\']?\s+(?:\S+)=|\s*\/?[>"\']))+.)["\']?/is', $image, $image_tags);

            #preg_match_all('/(?:\s|^)(\w+)(?:\s*=\s*(?:"([^"]*)"|\'([^\']*)\'))? /is', $image, $image_tags); was used before

            //fix for empty tags
            preg_match_all('/([a-zA-Z_-]+(?:--[a-zA-Z_-]+)*)(?:\s*=\s*(?:"([^"]*)"|\'([^\']*)\'|([^>\s]+)))?/', $image, $matches, PREG_SET_ORDER);

            if (!empty($_GET['dbg_img1'])) {
                return [$image, $matches];
            }

            $attributes = [];
            unset ($matches[0]);

            foreach ($matches as $match) {
                $attrName = $match[1]; // The attribute name
                // Determine the attribute value based on the capturing group that caught it
                $attrValue = null;
                // Iterate through potential groups and assign the first non-empty value
                foreach ([2, 3, 4] as $index) {
                    if (!empty($match[$index])) {
                        $attrValue = $match[$index];
                        break; // Stop at the first non-empty value
                    }
                }

                // Save the attribute and its value (if any) as key => value pairs in the array
                $attributes[$attrName] = $attrValue;
            }

            if (!empty($_GET['dbg_img2'])) {
                return [$image, $attributes];
            }

            foreach ($attributes as $tag => $value) {
                if (!empty($ignore_tags) && in_array($tag, $ignore_tags)) {
                    continue;
                }

                if ($tag == 'data-mk-image-src-set') {
                    $value = htmlspecialchars_decode($value);
                    $value = json_decode($value, true);
                    $value = $value['default'];
                }

                $found_tags[$tag] = $value;
            }

            return $found_tags;
        }

        if (!empty($_GET['dbg_img3'])) {
            return [$image, $image_tags];
        }

        if (!empty($image_tags[1])) {
            $tag_value = $image_tags[2];
            foreach ($image_tags[1] as $i => $tag) {
                if (!empty($ignore_tags) && in_array($tag, $ignore_tags)) {
                    continue;
                }

                if ($tag == 'data-mk-image-src-set') {
                    $value = htmlspecialchars_decode($tag_value[$i]);
                    $value = json_decode($value, true);
                    $value = $value['default'];
                    $tag_value[$i] = $value;
                } else {
                    if (strpos($tag_value[$i], '=') === false) {
                        $tag_value[$i] = str_replace(['"', '\''], '', $tag_value[$i]);
                    }
                }

                $found_tags[$tag] = $tag_value[$i];
            }
        }

        return $found_tags;
    }

    public function getPictureTags($image, $ignore_tags)
    {
        $extractedTags = [];
        $found_tags = [];
        $image = html_entity_decode($image);

        // Find all source tags
        preg_match_all('/<source[^>]*srcset="([^"]+)"/is', $image, $image_tags);

        // Gets All Tags - works
        #preg_match_all('/\s*([a-zA-Z-:]+)\s*=\s*("|\')(.*?)\2/is', $image, $image_tags);

        if (!empty($_GET['dbgExtract'])) {
            return [$image, $image_tags];
        }

        if (!empty($image_tags)) {
            $attributes = $image_tags[1];
            $values = $image_tags[3];

            if (!empty($attributes)) {
                foreach ($attributes as $index => $name) {
                    $value = $values[$index];
                    $extractedTags[$name] = $value;
                }
            }

            return $extractedTags;
        }

        return false;
    }


    // TODO: Will break sites if always active

    public function defferFontAwesome($html)
    {
        // TODO: Fix causes problems with Crsip on WP Compress Site

        if (preg_match("/<script\b[^>]*\bsrc=['\"]([^'\"]*kit\.fontawesome[^'\"]*)['\"][^>]*>.*?<\/script>/si", $html, $matches)) {
            $scriptTag = $matches[0];

            if (!empty($_GET['stop_before']) && $_GET['stop_before'] == 'defferFontAwesome') {
                return print_r([$matches], true);
            }

            if (strpos($scriptTag, 'defer') === false) {
                $scriptTag = str_replace('<script', '<script defer', $scriptTag);
            }

            $replace = str_replace($matches[0], $scriptTag, $html);
            return $replace;
        }

        return $html;
    }

    public function lazyWpFonts($html)
    {
        $pattern = '/<style[^>]*\s*id=[\'"]wp-fonts-local[\'"][^>]*>.*?<\/style>/is';
        $html = preg_replace($pattern, '', $html);
        return $html;
    }

    public function defferAssets($html)
    {
        // TODO: Fix causes problems with Crsip on WP Compress Site
        return $html;
    }

    public function backgroundSizing($html)
    {
        $html = preg_replace_callback('/<style\b[^>]*>(.*?)<\/style>?/is', [__CLASS__, 'replaceBackgroundImagesInCSS'], $html);
        $html = preg_replace_callback('/data-settings=(["\'])(.*?)\1/i', [__CLASS__, 'replaceBackgroundDataSetting'], $html);
        return $html;
    }

    public function replaceBackgroundImagesInCSS($image)
    {
        if (!empty($image[0])) {
            $html = preg_replace_callback('~\bbackground(-image)?\s*:(.*?)\(\s*(\'|")?(?<image>.*?)\3?\s*\)~i', [__CLASS__, 'replaceBackgroundImageStyles'], $image[0]);
        }

        return $html;
    }

    public function replaceBackgroundImagesInCSSLocal($image)
    {
        $style_content = $image[0];

        $html = preg_replace_callback('~\bbackground(-image)?\s*:(.*?)\(\s*(\'|")?(?<image>.*?)\3?\s*\)~i', [__CLASS__, 'replaceBackgroundImageStylesLocal'], $style_content);

        return $html;
    }

    public function replaceBackgroundImage($image)
    {
        $tag = $image[0];
        $url = $image['image'];
        $original_url = $url;

        if (!strpos($url, self::$zoneName)) {
            // File has already been replaced
            if ($this->defaultExcluded($url)) {
                return $tag;
            }

            // File is not an image
            if (!self::isImage($url)) {
                return $tag;
            }
        }

        if (self::isExcluded($url)) {
            return $tag;
        }

        if (self::isExcludedFrom('cdn', $url)) {
            return $tag;
        }

        $webp = '/wp:' . self::$webp;
        if (self::isExcludedFrom('webp', $url)) {
            $webp = '';
        }

        $newUrl = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $url)) . '/u:' . self::reformatUrl($url);
        $return_tag = str_replace($original_url, $newUrl, $tag);

        if (self::$lazy_enabled) {
            $return_tag .= 'display:none;';
        }

        if (!empty($_GET['dbgBgRep'])) {
            return print_r([$newUrl, self::$apiUrl], true);
        }

        return $return_tag;
    }

    public function replaceBackgroundDataSetting($image)
    {
        if (!empty($image[2])) {
            $data = html_entity_decode($image[2]);

            if (!empty($data)) {
                $dataJson = json_decode($data);

                if (!empty($dataJson) && !empty($dataJson->background_slideshow_gallery)) {
                    $slides = $dataJson->background_slideshow_gallery;

                    if (!empty($slides)) {
                        foreach ($slides as $i => $slide) {
                            $newSlideUrl = 'https://' . self::$zoneName . '/m:0/a:' . self::reformatUrl($slide->url);
                            $dataJson->background_slideshow_gallery[$i]->url = $newSlideUrl;
                        }

                        $dataJsonNew = json_encode($dataJson);
                        $dataJsonHTML = htmlentities($dataJsonNew, ENT_QUOTES);

                        return ' data-settings="' . $dataJsonHTML . '" ';
                    }
                }
            }
        }

        // Return the ORIGINAL matched string unchanged
        return $image[0];
    }

    public function replaceBackgroundImageStylesLocal($image)
    {
        $tag = $image[0];
        $url = $image['image'];


        if (!strpos($url, self::$zoneName)) {

            if ($this->defaultExcluded($url)) {
                return $tag;
            }

            if (self::isExcludedFrom('webp', $url)) {
                return $tag;
            }

            $site_url = str_replace(['https://', 'http://'], '', self::$siteUrl);
            $image_path = str_replace(['https://' . $site_url . '/', 'http://' . $site_url . '/'], '', $url);
            $image_path = explode('?', $image_path);
            $image_path = ABSPATH . $image_path[0];


            if (!file_exists($image_path)) {
                return $tag;
            } else {
                if (self::$webp == 'true' || self::$webp == '1') {
                    // Check if WebP Exists in PATH?
                    $webP = str_replace(['.jpeg', '.jpg', '.png'], '.webp', $image_path);

                    if (!file_exists($webP)) {
                        return $tag;
                    } else {
                        return str_replace(['.jpeg', '.jpg', '.png'], '.webp', $tag);
                    }
                } else {
                    return $tag;
                }
            }
        }
    }

    public function replaceBackgroundImageStyles($image)
    {
        if (!empty($image[0])) {
            $tag = $image[0];
            $url = $image['image'];
            $original_url = $url;

            if (!empty($url)) {
                if (!strpos($url, self::$zoneName)) {
                    // File has already been replaced
                    if ($this->defaultExcluded($url)) {
                        return $tag;
                    }

                    // File is not an image
                    if (!self::isImage($url)) {
                        return $tag;
                    }

                    if (self::isExcluded($url)) {
                        return $tag;
                    }

                    if (self::isExcludedFrom('cdn', $url)) {
                        return $tag;
                    }

                    $webp = '/wp:' . self::$webp;
                    if (self::isExcludedFrom('webp', $url)) {
                        $webp = '';
                    }

                    $newUrl = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $url)) . '/u:' . self::reformatUrl($url);
                    $return_tag = str_replace($original_url, $newUrl, $tag);

                    if (!empty($return_tag)) {
                        return $return_tag;
                    } else {
                        return $tag;
                    }
                } else {
                    return $tag;
                }
            }
        }

        return $tag;
    }

    public function replacePictureTags($html)
    {
        $html = preg_replace_callback('/<picture\b[^>]*>(.*?)<\/picture>/is', [__CLASS__, 'replaceSourceTags'], $html);
        return $html;
    }

    public function replaceImageTags($html)
    {
        $html = preg_replace_callback('/(?<![\"|\'])<img[^>]*>/i', [__CLASS__, 'replaceImageTagsDo'], $html);
        return $html;
    }

    public function replaceImageTagsDoSlash($image)
    {
        if (strpos($_SERVER['REQUEST_URI'], 'embed') !== false) {
            return $image[0];
        }

        if (!empty($_GET['dbgAjax'])) {
            return print_r([$_SERVER, wp_doing_ajax(), self::$isAjax, $image[0]], true);
        }

        if ($this->checkIsSlashed($image[0])) {
            $imageElement = stripslashes($image[0]);
        } else {
            $imageElement = $image[0];
        }

        $newImageElement = '';
        $original_img_tag = [];
        $original_img_tag['original_tags'] = $this->getAllTags($imageElement, []);

        if (!empty($_GET['ajaxImage'])) {
            return print_r([$original_img_tag, $imageElement], true);
        }

        if (strpos($original_img_tag['original_tags']['src'], 'data:image') !== false || strpos($original_img_tag['original_tags']['src'], 'blank') !== false) {
            $newImageElement = $imageElement;
        } else {
            $newImageElement = '<img data-image-el-count="' . self::$imageCounter . '"';

            // Check if both src and data-src are defined
            $preferredSrc = '';
            if (isset($original_img_tag['original_tags']['src']) && isset($original_img_tag['original_tags']['data-src'])) {
                // If both are defined, use data-src. Src is probably a palceholder and real src is in data-src
                $preferredSrc = $original_img_tag['original_tags']['data-src'];
            }

            // it's placeholder or blank file change something
            foreach ($original_img_tag['original_tags'] as $tag => $value) {
                if ($tag == 'src') {
                    $src = ($preferredSrc) ? $preferredSrc : $value;

                    $webp = '/wp:' . self::$webp;
                    if (self::isExcludedFrom('webp', $src)) {
                        $webp = '/wp:0';
                    }

                    $src = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $src)) . '/u:' . self::reformatUrl($src);
                    $newImageElement .= 'src="' . $src . '" ';
                } else if ($tag == 'data-src' && $preferredSrc) {
                    // Skip adding data-src as separate attribute if we've already used it for src
                    continue;
                } else if (!is_null($value)) {
                    $newImageElement .= $tag . '="' . htmlspecialchars($value, ENT_QUOTES, 'UTF-8') . '" ';
                } else {
                    $newImageElement .= $tag . ' ';
                }
            }
            $newImageElement .= '/>';
        }

        if ($this->checkIsSlashed($image[0])) {
            $newImageElement = addslashes($newImageElement);
        }

        return $newImageElement;
    }

    public function checkIsSlashed($string)
    {
        $pattern = "/\\\\[\"'\\\\]/"; // matches \", \', and \\
        return preg_match($pattern, $string) > 0;
    }

    public function replaceSourceTags($html)
    {
        // Get just the inside of <picture> tag
        //$insideElements = $html[1];

        if (self::$isMobile) {
            // On mobile it can break layouts since we force an image size.
            // w: in cdn url has to match w in srcset attribute if this is removed.
            //$html[0] = preg_replace('/(<(?:source|img)[^>]*)\s+srcset="[^"]*"([^>]*>)/i', '$1$2', $html[0]);

            //todo: above was breaking images without src, only srcset
            // Only remove srcset if src attribute exists
            $html[0] = preg_replace('/(<(?:source|img)\b(?=[^>]*\ssrc=)[^>]*)\s+srcset="[^"]*"([^>]*>)/i', '$1$2', $html[0]);
        }

        $html = preg_replace_callback('/(?:https?:\/\/|\/)[^\s]+\.(jpg|jpeg|png|gif|svg|webp)/i', [__CLASS__, 'replaceSourceSrcset'], $html);
        return $html[0];
    }

    public function replaceSourceSrcset($html)
    {
        $url = $html[0];

        if (empty($url)) return $html[0];

        if (strpos($url, 'data:image') !== false || strpos($url, 'blank') !== false || strpos($url, 'gform_ajax_spinner') !== false || strpos($url, 'spinner.svg') !== false) {
            return $html[0];
        }

        if (strpos($url, self::$zoneName) !== false) {
            // File has already been replaced
            return $url;
        }

        if ($this->defaultExcluded($url)) {
            return $url;
        }

        // File is not an image
        if (!self::isImage($url)) {
            return $url;
        }

        if (self::isExcluded($url)) {
            return $url;
        }

        if (self::isExcludedFrom('cdn', $url)) {
            return $url;
        }

        $webp = '/wp:' . self::$webp;
        if (self::isExcludedFrom('webp', $url)) {
            $webp = '';
        }

        $newUrl = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $url)) . '/u:' . self::reformatUrl($url);
        return $newUrl;
    }

    public function replaceImageTagsDo($image)
    {
        // Set up local variables at the beginning - don't modify self:: directly
        $lazyEnabled = self::$lazyEnabled;
        $adaptiveEnabled = self::$adaptiveEnabled;

        //check if relative src and replace with full (may not work for folder installs)
        if (preg_match('/<img[^>]+src="([^"]+)"[^>]*>/i', $image[0], $matches)) {
            $url = $matches[1];

            if (!empty($_GET['dbg_relative'])) {
                $debug = [];
                $debug['step1_extracted_url'] = $url;
                $debug['step2_original_image'] = $image[0];
            }

            if (strpos($url, '/') === 0) {
                $absolute_url = site_url($url);

                if (!empty($_GET['dbg_relative'])) {
                    $debug['step3_absolute_url'] = $absolute_url;
                    $debug['step4_site_url'] = site_url();
                }

                $image_path = ABSPATH . $url;

                if (!empty($_GET['dbg_relative'])) {
                    $debug['step5_image_path'] = $image_path;
                    $debug['step6_file_exists'] = file_exists($image_path) ? 'YES' : 'NO';
                }

                if (file_exists($image_path)) {
                    if (!empty($_GET['dbg_relative'])) {
                        $debug['step7_before_replacement'] = $image[0];
                    }

                    // Replace src attribute specifically
                    $image[0] = preg_replace('/src="' . preg_quote($url, '/') . '"/', 'src="' . $absolute_url . '"', $image[0]);

                    if (!empty($_GET['dbg_relative'])) {
                        $debug['step8_after_src_replacement'] = $image[0];
                    }

                    // Only process srcset if it actually contains relative URLs
                    if (preg_match('/srcset="[^"]*?' . preg_quote($url, '/') . '/', $image[0]) && !preg_match('/srcset="[^"]*?https?:\/\/[^"]*?' . preg_quote($url, '/') . '/', $image[0])) {
                        $image[0] = preg_replace('/srcset="([^"]*?)' . preg_quote($url, '/') . '/', 'srcset="$1' . $absolute_url, $image[0]);
                    }

                    if (!empty($_GET['dbg_relative'])) {
                        $debug['step9_after_srcset_replacement'] = $image[0];
                        return print_r($debug, true);
                    }
                }
            }
        }

        if (strpos($_SERVER['REQUEST_URI'], 'embed') !== false) {
            return $image[0];
        }

        if (!empty($_GET['dbgAjax'])) {
            return print_r([$_SERVER, wp_doing_ajax(), self::$isAjax, $image[0]], true);
        }

        // Woocommerce ajax load more?
        if (strpos($image[0], 'attachment-woocommerce') !== false) {
            //todo: Images not loaded via ajax also have this class, have to check something else
            //return $image[0];
        }

        if (self::$isAjax) {
            $AjaxImage = $this->ajaxImage($image[0]);
            return $AjaxImage;
        }

        //fixes images not loading in shop pagination on some woo themes
        if (strpos($_SERVER['REQUEST_URI'], 'pjax=') !== false) {
            $adaptiveEnabled = '0';
        }


        $lazyExcludes = ['breakdance', 'skip-lazy', 'notlazy', 'nolazy', 'jet-image', 'data-lazy'];

        foreach ($lazyExcludes as $exclude) {
            if (strpos($image[0], $exclude) !== false) {
                $lazyEnabled = '0';
                $adaptiveEnabled = '0';
                break;
            }
        }

        if (strpos($image[0], 'data:image') !== false || strpos($image[0], 'blank') !== false || strpos($image[0], 'gform_ajax_spinner') !== false || strpos($image[0], 'spinner.svg') !== false) {
            return $image[0];
        }

        self::$lazyLoadedImages++;

        $skipLazy = false;
        $isLogo = false;
        $isSlider = false;

        if (!strpos($image[0], self::$zoneName)) {
            // File has already been replaced
            if ($this->defaultExcluded($image[0])) {
                return $image[0];
            }

            // File is not an image
            if (!self::isImage($image[0])) {
                return $image[0];
            }

            if ((self::$externalUrlEnabled == 'false' || self::$externalUrlEnabled == '0') && !self::imageUrlMatchingSiteUrl($image[0])) {
                return $image[0];
            }

        } else {
            // Already has zapwp url, if minify:false/true then it's something
            if (strpos($image[0], 'm:') !== false) {
                return $image[0];
            }
        }

        // Something for cookie??
        if (strpos($image[0], 'cookie') !== false) {
            $image[0] = stripslashes($image[0]);
            return $image[0];
        }


        // Remove fetchpriority attribute
        $image[0] = preg_replace('/\bfetchpriority="[^"]*"\s*/si', '', $image[0]);
        // Remove decoding attribute
        $image[0] = preg_replace('/\bdecoding="[^"]*"\s*/si', '', $image[0]);

        if (!empty(self::$settings['remove-srcset']) && self::$settings['remove-srcset'] == '1') {
            $image[0] = preg_replace('/\bsrcset="[^"]*"\s*/si', '', $image[0]);
            $image[0] = preg_replace('/\bsizes="[^"]*"\s*/si', '', $image[0]);
        }

        // Original URL was
        $original_img_tag = [];
        $original_img_tag['original_tags'] = $this->getAllTags($image[0], []);

        if (!empty($_GET['dbg_img'])) {
            return print_r([$image[0], $original_img_tag['original_tags']], true);
        }

        if (!empty($_GET['dbg_src_first'])) {
            return print_r([$original_img_tag['original_tags']['src'], 'empty_space' => strpos($original_img_tag['original_tags']['src'], ' '), 'encoded_space' => strpos($original_img_tag['original_tags']['src'], '%20')], true);
        }

        if (!empty($original_img_tag['original_tags']['src'])) {
            // Check if the URL contains spaces or encoded spaces (%20)
            if (strpos($original_img_tag['original_tags']['src'], ' ') !== false || strpos($original_img_tag['original_tags']['src'], '%20') !== false) {
                return $image[0];
            }
        }

        /**
         * strpos blank is required to make it work when image has placeholder containing "blank" in it.
         */
        $image_source = '';
        if (!empty($original_img_tag['original_tags']['src'])) {
            $image_source = $original_img_tag['original_tags']['src'];
        } else {
            if (!empty($original_img_tag['original_tags']['data-src'])) {
                $image_source = $original_img_tag['original_tags']['data-src'];
            } elseif (!empty($original_img_tag['original_tags']['data-cp-src'])) {
                $image_source = $original_img_tag['original_tags']['data-cp-src'];
            } elseif (!empty($original_img_tag['original_tags']['data-oi'])) {
                // Porto Lazy Load
                $image_source = $original_img_tag['original_tags']['data-oi'];
            }
        }

        if (!empty($original_img_tag['original_tags']['data-src'])) {
            $image_source = $original_img_tag['original_tags']['data-src'];
        }


        /*
         * Patch for Image Src in JSON
         * data-mk-image-src-set
         */
        if (!empty($original_img_tag['original_tags']['data-mk-image-src-set'])) {
            $jsonString = htmlspecialchars_decode($original_img_tag['original_tags']['data-mk-image-src-set']);
            $decodedArray = json_decode($jsonString, true);
            if (!empty($decodedArray['default'])) {
                $image_source = $decodedArray['default'];
            }
        }


        if (self::isExcludedFrom('cdn', $image_source)) {
            return $image[0];
        }

        if (!empty($_GET['dbg_img_src'])) {
            return print_r(['src_is_empty' => empty($original_img_tag['original_tags']['src']), 'data-src_is_empty' => empty($original_img_tag['original_tags']['data-src']), 'data-cp-src_is_empty' => empty($original_img_tag['original_tags']['data-cp-src']), 'src' => $image_source, 'porto-lazy-src' => $original_img_tag['original_tags']['data-oi'], 'tags' => $original_img_tag], true);
        }

        if (!empty($original_img_tag['original_tags']['data-interchange'])) {
            // if this is set then JS parses it and finds the correct url to use, but if we put it on cdn we break the parsing, have to exclude
            return $image[0];
        }

        $original_img_tag['original_src'] = $image_source;
        $original_img_tag['original_srcset'] = !empty($original_img_tag['original_tags']['srcset'])
            ? $original_img_tag['original_tags']['srcset'] : '';

        /**
         * Fetch image actual size
         */
        $originalSizeTags = false;
        if (!empty($original_img_tag['original_tags']['width'])) {
            $size = [];
            $size[0] = $original_img_tag['original_tags']['width'];
            $size[1] = $original_img_tag['original_tags']['height'];
            $originalSizeTags = true;
        } else {
            $size = self::get_image_size($image_source);
        }

        // SVG Placeholder
        $source_svg = 'data:image/svg+xml;base64,' . base64_encode('<svg xmlns="http://www.w3.org/2000/svg" width="' . $size[0] . '" height="' . $size[1] . '"><path d="M2 2h' . $size[0] . 'v' . $size[1] . 'H2z" fill="#fff" opacity="0"/></svg>');

        $image_source = $this->specialChars($image_source);

        if (self::$isAmp->isAmp()) {
            $source_svg = $image_source;
            $lazyEnabled = '0';
            $adaptiveEnabled = '0';
        }

        if (isset($_GET['preload']) && !empty($_GET['preload'])) {
            $source_svg = $image_source;
            $lazyEnabled = '0';
            $adaptiveEnabled = '0';
        }

        if (!empty($_GET['rl_gallery_no'])) {
            //fix for Responsive Lightbox & Gallery
            $source_svg = $image_source;
            $lazyEnabled = '0';
            $adaptiveEnabled = '0';
        }

        if (empty($original_img_tag['original_tags']['class']) || !isset($original_img_tag['original_tags']['class'])) {
            $original_img_tag['original_tags']['class'] = '';
        }

        if (empty($original_img_tag['class']) || !isset($original_img_tag['class'])) {
            $original_img_tag['class'] = '';
        }

        if (!empty($original_img_tag['class']) && strpos($original_img_tag['class'], 'kb-img') !== false) {
            $original_img_tag['class'] = '';
        }

        $lowerClass = strtolower($original_img_tag['original_tags']['class']);
        if (strpos($lowerClass, 'lgx_app') !== false || strpos($lowerClass, 'dynamic-image') !== false || strpos($lowerClass, 'slide') !== false || strpos($lowerClass, 'slide') !== false || strpos($lowerClass, 'breakdance') !== false) {
            $source_svg = $image_source;
            $isSlider = true;
        }

        $lowerImageUrl = $imageUrl = strtolower($image_source);

        if (strpos($lowerImageUrl, 'logo') !== false || (!empty($original_img_tag['class']) && strpos($lowerClass, 'logo')) !== false) {
            if (strpos($lowerImageUrl, 'wordpress') === false) {
                $isLogo = true;
            }
        }

        if (!empty($original_img_tag['sizes'])) {
            $original_img_tag['additional_tags']['sizes'] = $original_img_tag['sizes'];
        }

        if (!empty($_GET['dbg_logo'])) {
            return print_r([$image_source], true);
        }

        if (!empty($_GET['dbg_tags'])) {
            return print_r([$original_img_tag], true);
        }


        $webp = '/wp:' . self::$webp;
        if (self::$excludes_class->isWebpExcluded($image_source, $original_img_tag['original_tags']['class'])) {
            $webp = '/wp:0';
            $original_img_tag['original_tags']['class'] .= ' wpc-excluded-webp';
            $original_img_tag['additional_tags']['wpc-data'] = 'excluded-webp ';
        }

        if (self::$excludes_class->isLazyExcluded($image_source, $original_img_tag['original_tags']['class'])) {
            $original_img_tag['additional_tags']['wpc-data'] = 'excluded-lazy ';
            $isLogo = true;
        }

        $original_img_tag['additional_tags']['data-wpc-loaded'] = 'true';


        // Is LazyLoading enabled in the plugin?
        if (!$isSlider && !empty($lazyEnabled) && $lazyEnabled == '1' && !self::$lazyOverride) {
            // if image is logo, then force image url - no lazy loading
            if ($isLogo) {
                // TODO: This is a fix for logo not being on CDN
                $logoWidth = $this::getCurrentMaxWidth('logo');
                #$logoWidth = 100;

                $original_img_tag['src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $logoWidth . '/u:' . self::reformatUrl($image_source);
                $original_img_tag['original_tags']['src'] = $original_img_tag['src'];
                $original_img_tag['additional_tags']['class'] = 'wps-ic-live-cdn wps-ic-logo wpc-excluded-adaptive';
                $original_img_tag['additional_tags']['wpc-data'] = 'excluded-adaptive';
                unset($original_img_tag['additional_tags']['data-wpc-loaded']);
            } else if (self::$lazyLoadedImages <= self::$lazyLoadSkipFirstImages) {
                // Don't lazy load LCP Fix !!
                // If we loaded less images than skip first variable
                $original_img_tag['src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth('logo') . '/u:' . self::reformatUrl($image_source);
                $original_img_tag['original_tags']['src'] = $original_img_tag['src'];
                $original_img_tag['additional_tags']['class'] = 'wps-ic-live-cdn wpc-excluded-adaptive wpc-lazy-skipped1';
                $original_img_tag['additional_tags']['wpc-data'] = 'excluded-adaptive';
                unset($original_img_tag['additional_tags']['data-wpc-loaded']);
            } else {
                if (self::$lazyLoadedImages > self::$lazyLoadedImagesLimit) {
                    // We are over lazy limit, load placeholder
                    $maxWidth = $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $image_source));
                    $original_img_tag['src'] = $source_svg;
                    $original_img_tag['data-src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $maxWidth . '/u:' . self::reformatUrl($image_source);
                    $original_img_tag['additional_tags']['class'] = 'wps-ic-live-cdn wps-ic-lazy-image';
                    $original_img_tag['additional_tags']['loading'] = 'lazy';
                } else {
                    // We are under lazy limit, load image
                    $original_img_tag['src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth(1, true) . '/u:' . self::reformatUrl($image_source);
                    $original_img_tag['data-src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth(1, true) . '/u:' . self::reformatUrl($image_source);
                    $original_img_tag['additional_tags']['class'] = 'wps-ic-live-cdn wpc-excluded-adaptive wpc-lazy-skipped2';
                    $original_img_tag['additional_tags']['wpc-data'] = 'excluded-adaptive';
                    unset($original_img_tag['additional_tags']['data-wpc-loaded']);
                }

                // Data cp-src
                if (!empty($original_img_tag['original_tags']['data-cp-src'])) {
                    $original_img_tag['original_tags']['data-cp-src'] = $original_img_tag['data-src'];
                }
            }
        } else {
            // We enter this if "isLOGO" == true because of lazy disabled
            if (!$isSlider && !empty($adaptiveEnabled) && $adaptiveEnabled == '1') {
                $original_img_tag['src'] = $source_svg;
                $original_img_tag['additional_tags']['class'] = 'wps-ic-cdn';

                /**
                 * If current image is logo then force image, don't lazy load
                 */
                if ($isLogo || strpos($lowerImageUrl, 'logo') !== false) {
                    // TODO: Fix for logos not on CDN
                    $maxWidth = $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $image_source));
                    $original_img_tag['src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $maxWidth . '/u:' . self::reformatUrl($image_source);
                    $original_img_tag['original_tags']['src'] = $original_img_tag['src'];
                } else {
                    $maxWidth = $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $image_source));
                    $original_img_tag['src'] = $source_svg;
                    $original_img_tag['data-src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $maxWidth . '/u:' . self::reformatUrl($image_source);

                    // Data cp-src
                    if (!empty($original_img_tag['original_tags']['data-cp-src'])) {
                        $original_img_tag['original_tags']['data-cp-src'] = $original_img_tag['data-src'];
                    }
                }
            } else {
                // Adaptive is Disabled
                $original_img_tag['additional_tags']['class'] = 'wps-ic-cdn';

                if (strpos($lowerClass, 'lazy') !== false) {
                    if (!empty($original_img_tag['original_tags']['data-src'])) {
                        $maxWidth = $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $original_img_tag['original_tags']['data-src']));
                        $original_img_tag['data-src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $maxWidth . '/u:' . self::reformatUrl($original_img_tag['original_tags']['data-src']);
                    } else {
                        $maxWidth = $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $image_source));
                        $original_img_tag['data-src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $maxWidth . '/u:' . self::reformatUrl($image_source);
                    }

                    $original_img_tag['original_tags']['src'] = $original_img_tag['data-src'];
                    $original_img_tag['original_tags']['data-src'] = $original_img_tag['data-src'];
                    $original_img_tag['src'] = $original_img_tag['data-src'];

                    // Data cp-src
                    if (!empty($original_img_tag['original_tags']['data-cp-src'])) {
                        $original_img_tag['original_tags']['data-cp-src'] = $original_img_tag['data-src'];
                    }
                } else {
                    $maxWidth = $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $image_source));
                    $original_img_tag['src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $maxWidth . '/u:' . self::reformatUrl($image_source);

                    // Data cp-src
                    if (!empty($original_img_tag['original_tags']['data-cp-src'])) {
                        $original_img_tag['original_tags']['data-cp-src'] = $original_img_tag['src'];
                    }
                }
            }
        }


        // Lazy Loading - Fix for LCP Lazy Issues
        if (self::$lazyLoadedImages <= self::$lazyLoadSkipFirstImages) {
            $skipLazy = true;
            $maxWidth = $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $image_source));
            $original_img_tag['src'] = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $maxWidth . '/u:' . self::reformatUrl($image_source);
            $original_img_tag['data-count'] = self::$lazyLoadedImages;

            if (!empty(self::$settings['fetchpriority-high']) && self::$settings['fetchpriority-high'] == '1') {
                $original_img_tag['additional_tags']['fetchpriority'] = 'high';
            }

            #$original_img_tag['original_tags']['srcset'] = $this->rewriteSrcset($original_img_tag, $original_img_tag['original_tags']['srcset']);
            $original_img_tag['original_tags']['class'] .= ' wpc-excluded-adaptive wpc-lazy-skipped3';
            $original_img_tag['additional_tags']['wpc-data'] = 'excluded-adaptive';
            unset($original_img_tag['additional_tags']['data-wpc-loaded'], $original_img_tag['original_tags']['data-src'], $original_img_tag['data-src']);
        }


        // Recalculate dimensions once after all conditions
        if (empty($originalSizeTags)) {
            if (isset($maxWidth) && $maxWidth > 1 && !empty($original_img_tag['original_tags']['width']) && !empty($original_img_tag['original_tags']['height'])) {
                $originalWidth = $original_img_tag['original_tags']['width'];
                $originalHeight = $original_img_tag['original_tags']['height'];
                $original_img_tag['original_tags']['width'] = $maxWidth;
                $original_img_tag['original_tags']['height'] = round(($originalHeight / $originalWidth) * $maxWidth);
            }
        }

        // Patch for images that already have predefined size tag
        if (empty($originalSizeTags)) {
            if (empty(self::$settings['add-image-sizes']) || self::$settings['add-image-sizes'] == '0') {
                unset($original_img_tag['original_tags']['width'], $original_img_tag['original_tags']['height']);
            }
        } else {
            // It has original tags and preserve them
            $original_img_tag['original_tags']['wpc-size'] = 'preserve';
        }


        if ($adaptiveEnabled == '0') {
            $original_img_tag['original_tags']['class'] .= ' wpc-excluded-adaptive';
            $original_img_tag['additional_tags']['wpc-data'] = 'excluded-adaptive';
        }


        if (!empty($_GET['dbg_tag'])) {
            return print_r(['$isLogo' => $isLogo, 'skipLazy' => $skipLazy, 'adaptiveEnabled' => $adaptiveEnabled, '$lazyLoadedImages' => self::$lazyLoadedImages, '$lazyLoadedImagesLimit' => self::$lazyLoadedImagesLimit, '$lazyEnabled' => $lazyEnabled, '$nativeLazyEnabled' => self::$nativeLazyEnabled, '$isSlider' => $isSlider, '$original_img_tag' => $original_img_tag], true);
        }

        // PerfMatters Fix for lazy loading
        if (self::$perfMattersActive) {
            if (!empty($original_img_tag['data-src'])) {
                $original_img_tag['original_tags']['src'] = $original_img_tag['data-src'];
                $original_img_tag['src'] = $original_img_tag['data-src'];
                unset($original_img_tag['data-src']);
            }
        }

        if (empty($original_img_tag['original_tags']['srcset']) || !isset($original_img_tag['original_tags']['srcset'])) {
            $original_img_tag['original_tags']['srcset'] = '';
        }

	    if (!isset($original_img_tag['original_tags']['data-srcset'])) {
		    $original_img_tag['original_tags']['data-srcset'] = '';
	    }

        if (!self::$excludes_class->isAdaptiveExcluded($image_source, $original_img_tag['original_tags']['class'])) {
            $original_img_tag['original_tags']['srcset'] = $this->rewriteSrcset($original_img_tag, $original_img_tag['original_tags']['srcset']);
            //here
            $original_img_tag['original_tags']['data-srcset'] = $this->cdnSrcsetOnly($original_img_tag['original_tags']['data-srcset']);
        } else {
            // TODO: For some reason this was commented out (class)
            $original_img_tag['original_tags']['class'] .= ' wpc-excluded-adaptive';
            $original_img_tag['additional_tags']['wpc-data'] = 'excluded-adaptive';
            $original_img_tag['additional_tags']['data-excluded-adaptive'] = 'true';
            // TODO: Added 23.11.2025 - mozda sjebe lazy load?
            // TODO: Maknuto, bilo je problema
            // unset($original_img_tag['additional_tags']['data-wpc-loaded']);

            $original_img_tag['src'] = $image_source;
        }

        $build_image_tag = '<img ';

        // Patch, remove things
        unset($original_img_tag['original_tags']['fetchpriority'], $original_img_tag['original_tags']['decoding']);
        // Unset bricks attribute
        unset($original_img_tag['original_tags']['data-bricks-logo']);


        //Is native lazy enabled?
        if (self::$lazyLoadedImages > self::$lazyLoadSkipFirstImages) {
            if (!empty(self::$nativeLazyEnabled) && self::$nativeLazyEnabled == '1') {
                if (!$skipLazy && !$isLogo) {
                    if (!self::$lazyOverride && !self::isExcludedFrom('lazy', $image_source)) {
                        if (strpos($lowerClass, 'rs') === false && strpos($lowerClass, 'slide') === false && strpos($lowerClass, 'lgx_app') === false && strpos($lowerClass, 'dynamic-image') === false && strpos($lowerClass, 'breakdance') === false) {
                            $build_image_tag .= 'loading="lazy" data-count="' . self::$lazyLoadedImages . '" ';
                        }
                    }
                }
            }
        }

        if (!empty($original_img_tag['original_src'])) {
            $original_img_tag['original_src'] = $this->specialChars($original_img_tag['original_src']);
        }

        if (!empty($original_img_tag['src'])) {
            $original_img_tag['src'] = $this->specialChars($original_img_tag['src']);
        }

        if (!empty($original_img_tag['original_tags']['data-src'])) {
            $original_img_tag['original_tags']['data-src'] = $this->specialChars($original_img_tag['original_tags']['data-src']);
        }

        if (!empty($original_img_tag['data-src'])) {
            $original_img_tag['data-src'] = $this->specialChars($original_img_tag['data-src']);
        }

        if (self::isExcluded($original_img_tag['original_src'], $original_img_tag['original_src'])) {
            // Image is excluded
            if (!empty($original_img_tag['original_src'])) {
                $original_img_tag['src'] = $original_img_tag['original_src'];
            } elseif (!empty($original_img_tag['data-src'])) {
                $original_img_tag['src'] = $original_img_tag['data-src'];
            }
        }

        /**
         * Is this image lazy excluded?
         */

        if (!empty($lazyEnabled) && $lazyEnabled == '1') {
            if (self::$excludes_class->isLazyExcluded($image_source, $original_img_tag['original_tags']['class'])) {
                //Don't add anything if lazy load is off
                $original_img_tag['src'] = $image_source;
            }
        }

        if ($isLogo || !empty(self::$removeSrcset) && self::$removeSrcset == '1') {
            unset($original_img_tag['original_tags']['srcset'], $original_img_tag['original_tags']['data-srcset']);
        } elseif (!empty($lazyEnabled) && $lazyEnabled == '1' && !$skipLazy) {
            if (!empty($original_img_tag['original_tags']['srcset']) && strpos($original_img_tag['original_tags']['srcset'], 'lazy') === false && strpos($original_img_tag['original_tags']['srcset'], 'placeholder') === false) {
                $build_image_tag .= 'data-srcset="' . $original_img_tag['original_tags']['srcset'] . '" ';
            } else if (!empty($original_img_tag['original_tags']['data-srcset'])) {
                $build_image_tag .= 'data-srcset="' . $original_img_tag['original_tags']['data-srcset'] . '" ';
            }
            unset($original_img_tag['original_tags']['srcset'], $original_img_tag['original_tags']['data-srcset']);
        }

        if (!empty($_GET['remove_srcset'])) {
            unset($original_img_tag['original_tags']['srcset'], $original_img_tag['original_tags']['data-srcset']);
        }

        if (!empty($_GET['test_adaptive'])) {
            if (!empty($adaptiveEnabled) && $adaptiveEnabled == '1') {
                $build_image_tag .= 'data-src="' . $original_img_tag['data-src'] . '" ';
                $original_img_tag['original_tags']['data-src'] = $source_svg;
            }
        }

        // Add srcset - Remove SrcSet is Disabled!
        if (empty(self::$removeSrcset)) {
            $srcSetTag = 'srcset';

            if ((!empty($adaptiveEnabled) && $adaptiveEnabled == '1') || (!empty($lazyEnabled) && $lazyEnabled == '1')) {
                if (!$skipLazy) {
                    $srcSetTag = 'data-srcset';
                }
            }

            if (!empty($original_img_tag['original_tags']['srcset']) && strpos($original_img_tag['original_tags']['srcset'], 'lazy') === false && strpos($original_img_tag['original_tags']['srcset'], 'placeholder') === false) {
                $build_image_tag .= $srcSetTag . '="' . $original_img_tag['original_tags']['srcset'] . '" ';
            } else if (!empty($original_img_tag['original_tags']['data-srcset'])) {
                $build_image_tag .= $srcSetTag . '="' . $original_img_tag['original_tags']['data-srcset'] . '" ';
            }
        }

        // add data-src
        if (empty($original_img_tag['data-src'])) {
            $original_img_tag['data-src'] = '';
        }

        /**
         * If image contains logo in filename, then it's a logo probably
         */
        if (strpos(strtolower($original_img_tag['original_tags']['class']), 'rs-lazyload') !== false || strpos(strtolower($original_img_tag['original_tags']['class']), 'rs') !== false || strpos(strtolower($image_source), 'logo') !== false || strpos(strtolower($original_img_tag['class']), 'logo') !== false) {
            $logoSrc = $original_img_tag['original_tags']['src'];

            // Check if it's a protocol-relative URL and convert it to https://
            if (strpos($logoSrc, '//') === 0 && strpos($logoSrc, 'https://') !== 0 && strpos($logoSrc, 'http://') !== 0) {
                $logoSrc = 'https:' . $logoSrc;
            }

            $build_image_tag .= 'src="' . $logoSrc . '" ';
        } else {
            /*
                 * if data-src is not empty then we have src as SVG
                 */
            if (!empty($lazyEnabled) && $lazyEnabled == '1') {
                $build_image_tag .= 'src="' . $original_img_tag['src'] . '" ';

                if (!empty($original_img_tag['data-src'])) {
                    $build_image_tag .= 'data-src="' . $original_img_tag['data-src'] . '" ';
                }

            } elseif (!empty($adaptiveEnabled) && $adaptiveEnabled == '1') {
                $build_image_tag .= 'src="' . $original_img_tag['src'] . '" ';

                if (!empty($original_img_tag['data-src'])) {
                    $build_image_tag .= 'data-src="' . $original_img_tag['data-src'] . '" ';
                }

            } else {
                if (!empty($original_img_tag['original_tags']['data-src'])) {
                    $build_image_tag .= 'src="' . $original_img_tag['original_tags']['data-src'] . '" ';
                } else {
                    if (!empty($original_img_tag['data-src'])) {
                        $build_image_tag .= 'src="' . $original_img_tag['data-src'] . '" ';
                    } else {
                        $build_image_tag .= 'src="' . $original_img_tag['src'] . '" ';
                    }
                }
            }
        }

        if (!empty($original_img_tag['original_tags'])) {
            foreach ($original_img_tag['original_tags'] as $tag => $value) {
                if (!empty($value)) {
                    if ($tag == 'class' || $tag == 'src' || $tag == 'srcset' || $tag == 'data-src' || $tag == 'data-mk-image-src-set' || $tag == 'data-prehidden') {
                        continue;
                    } elseif (!empty($value)) {
                        $build_image_tag .= $tag . '="' . $value . '" ';
                    } else {
                        $build_image_tag .= $tag . ' ';
                    }
                }
            }
        }

        if (strpos($lowerClass, 'slide') !== false || strpos($lowerClass, 'lgx_app') !== false || strpos($lowerClass, 'dynamic-image') !== false || strpos($lowerClass, 'rs') !== false) {
            unset($original_img_tag['additional_tags']['data-wpc-loaded']);
        }

        // foreach additional image tag
        foreach ($original_img_tag['additional_tags'] as $tag => $value) {
            if ($tag == 'class') {
                $tag = 'class';

                if (strpos($lowerClass, 'rs-lazyload') !== false || strpos($lowerClass, 'rs') !== false || (strpos($lowerClass, 'lazy') !== false && strpos($lowerClass, 'skip-lazy') === false)) {
                    // Leave as is
                    $value = $original_img_tag['original_tags']['class'];
                } else {
                    $value .= ' ' . $original_img_tag['original_tags']['class'];
                }
            }

            if ($tag == 'src' || $tag == 'data-src' || $tag == 'data-mk-image-src-set' || empty($value) || $tag == 'data-prehidden') {
                continue;
            }

            // Check if tag already exists, if so - replace it
            $value = trim($value);
            if (!empty($value)) {
                $build_image_tag .= $tag . '="' . $value . '" ';
            }
        }

        if (empty($original_img_tag['original_tags']['alt'])) {
            $original_img_tag['original_tags']['alt'] = '';
        }

        $build_image_tag .= 'alt="' . $original_img_tag['original_tags']['alt'] . '" ';

        $build_image_tag .= '/>';

        // Wrap in <picture> for bulletproof WebP delivery
        if (self::$pictureWebpEnabled && strpos($build_image_tag, '/wp:1/') !== false) {
            $lowerSrc = strtolower($image_source);
            $skipFormats = (strpos($lowerSrc, '.svg') !== false
                         || strpos($lowerSrc, '.gif') !== false
                         || strpos($lowerSrc, '.ico') !== false);

            if (!$skipFormats) {
                // Create non-WebP fallback — safe regex: only replaces /wp:1/ inside URLs (after ://)
                $fallbackTag = preg_replace('#(://[^"\'>\s]*/wp):1/#', '$1:0/', $build_image_tag);

                // Extract srcset for <source> (WebP version with /wp:1/)
                $sourceSrcset = '';
                if (preg_match('/(data-)?srcset="([^"]*)"/', $build_image_tag, $srcsetMatch)) {
                    $srcsetAttr = $srcsetMatch[1] ? 'data-srcset' : 'srcset';
                    $sourceSrcset = ' ' . $srcsetAttr . '="' . $srcsetMatch[2] . '"';
                }

                // Fallback: use src for images without srcset
                if (empty($sourceSrcset)) {
                    $srcAttrName = (strpos($build_image_tag, 'data-src="') !== false) ? 'data-srcset' : 'srcset';
                    if (preg_match('/(data-)?src="([^"]*)"/', $build_image_tag, $srcMatch)) {
                        $sourceSrcset = ' ' . $srcAttrName . '="' . $srcMatch[2] . '"';
                    }
                }

                // Extract sizes (required by spec when srcset uses width descriptors)
                $sourceSizes = '';
                if (preg_match('/sizes="([^"]*)"/', $build_image_tag, $sizesMatch)) {
                    $sourceSizes = ' sizes="' . $sizesMatch[1] . '"';
                }

                // AVIF source — locally generated, served as asset via CDN (no MC processing)
                $avifSource = '';
                if (self::$pictureAvifEnabled && !empty($image_source)) {
                    $cleanSource = preg_replace('/\?.*$/', '', $image_source);
                    $avifUrl = preg_replace('/\.(jpe?g|png|webp)$/i', '.avif', $cleanSource);
                    $avifSiteUrl = trailingslashit(site_url());
                    $avifPath = str_replace($avifSiteUrl, trailingslashit(ABSPATH), $avifUrl);

                    if (file_exists($avifPath)) {
                        $avifApiBase = 'https://' . self::$zoneName . '/m:0/a:';

                        if (!empty($original_img_tag['original_srcset'])) {
                            $avifEntries = [];
                            $srcsetParts = explode(',', $original_img_tag['original_srcset']);

                            foreach ($srcsetParts as $part) {
                                $part = trim($part);
                                if (preg_match('/^(\S+)\s+(.+)$/', $part, $m)) {
                                    $srcUrl = preg_replace('/\?.*$/', '', $m[1]);
                                    $descriptor = $m[2];
                                    $avifSrcUrl = preg_replace('/\.(jpe?g|png|webp)$/i', '.avif', $srcUrl);
                                    $avifSizePath = str_replace($avifSiteUrl, trailingslashit(ABSPATH), $avifSrcUrl);

                                    if (file_exists($avifSizePath)) {
                                        $avifEntries[] = $avifApiBase . self::reformatUrl($avifSrcUrl) . ' ' . $descriptor;
                                    }
                                }
                            }

                            if (!empty($avifEntries)) {
                                $avifSource = '<source srcset="' . implode(', ', $avifEntries) . '"' . $sourceSizes . ' type="image/avif">';
                            }
                        } else {
                            $avifCdnUrl = $avifApiBase . self::reformatUrl($avifUrl);
                            $avifSource = '<source srcset="' . $avifCdnUrl . '"' . $sourceSizes . ' type="image/avif">';
                        }
                    }
                }

                $build_image_tag = '<picture class="wpc-picture">'
                    . $avifSource
                    . '<source' . $sourceSrcset . $sourceSizes . ' type="image/webp">'
                    . $fallbackTag
                    . '</picture>';
            }
        }

        if (!empty($_GET['dbgAjaxEnd'])) {
            return print_r([$_POST, $_GET, wp_doing_ajax(), self::$isAjax, $image[0]], true);
        }

        if (!empty($_GET['dbg_buildimg'])) {
            return print_r([$original_img_tag['original_tags'], $original_img_tag['additional_tags'], str_replace('<img', 'mgi', $build_image_tag)], true);
        }

        if (self::$isAjax) {
            $build_image_tag = addslashes($build_image_tag);
        }

        return $build_image_tag;
    }

    public function ajaxImage($imageElement)
    {
        if ($this->checkIsSlashed($imageElement)) {
            $imageElement = stripslashes($imageElement);
        }

        $newImageElement = '';
        $original_img_tag = [];
        $original_img_tag['original_tags'] = $this->getAllTags($imageElement, []);

        if (!empty($_GET['ajaxImage'])) {
            return print_r([$original_img_tag, $imageElement], true);
        }

        if (strpos($original_img_tag['original_tags']['src'], 'data:image') !== false || strpos($original_img_tag['original_tags']['src'], 'blank') !== false) {

            $newImageElement = '<img ';
            // it's placeholder or blank file change something
            foreach ($original_img_tag['original_tags'] as $tag => $value) {
                if ($tag == 'src') {
                    // Do nothing
                } elseif ($tag == 'data-src') {
                    $src = $value;

                    $webp = '/wp:' . self::$webp;
                    if (self::isExcludedFrom('webp', $src)) {
                        $webp = '/wp:0';
                    }

                    $src = self::$apiUrl . '/r:' . self::$isRetina . $webp . '/w:' . $this::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $src)) . '/u:' . self::reformatUrl($src);
                    $newImageElement .= 'src="' . $src . '" ';
                } else if (!is_null($value)) {
                    $newImageElement .= $tag . '="' . $value . '" ';
                } else {
                    $newImageElement .= $tag . ' ';
                }
            }
            $newImageElement .= '/>';
        } else {
            $newImageElement = $imageElement;
        }

        if ($this->checkIsSlashed($imageElement)) {
            $newImageElement = stripslashes($newImageElement);
        }

        return $newImageElement;
    }

    public static function get_image_size($url)
    {
        preg_match("/([0-9]+)x([0-9]+)\.[a-zA-Z0-9]+/", $url, $matches); //the filename suffix way
        if (isset($matches[1]) && isset($matches[2])) {
            return [$matches[1], $matches[2]];
        } else { //the file
            return [1024, 1024];
        }
    }

    public function rewriteSrcset($original_img_tag, $srcset)
    {
        if (empty($srcset)) {
            return $srcset;
        }

        if (self::$isMobile) {
            // We are forcing all widths on mobile, no srcset is needed.
            // the w: param has to match the w param from the srcset url or it can break mobile layouts.
            return '';
        }

        $newSrcSet = '';

        preg_match_all('/((https?\:\/\/|\/\/)[^\s]+\S+\.(jpg|jpeg|png|gif|svg|webp))\s(\d{1,5}+[wx])/si', $srcset, $srcset_links);

        // Fix max-width setting for img tag
        $maxWidthMatches = [];
        if (!empty($original_img_tag['original_tags']['sizes'])) {
            preg_match('/max-width:\s*(\d+)px/si', $original_img_tag['original_tags']['sizes'], $maxWidthMatches);
        }

        // ---------------------------------------------------------------------
        // Pick canonical "full" image source:
        // Prefer original_src ONLY if it is not a WP resized (-400x70) file,
        // otherwise use the largest srcset candidate.
        // ---------------------------------------------------------------------
        $largestWidth = 0;
        $largestSrc = '';

        if (!empty($srcset_links[0])) {
            foreach ($srcset_links[0] as $srcsetItem) {
                $parts = preg_split('/\s+/', trim($srcsetItem));
                if (count($parts) < 2) continue;

                $url = trim($parts[0]);
                $w = trim($parts[1]);

                // Only treat "w" candidates as width-based (ignore "x" densities for largest selection)
                if (strpos($w, 'w') !== false) {
                    $wi = (int)str_replace('w', '', $w);
                    if ($wi > $largestWidth) {
                        $largestWidth = $wi;
                        $largestSrc = $url;
                    }
                }
            }
        }

        $originalSrc = $original_img_tag['original_src'] ?? '';

        // Detect WP resized pattern in originalSrc: "-400x70.ext"
        $originalLooksResized = false;
        $originalWidthFromName = 0;

        if (!empty($originalSrc)) {
            if (preg_match('/-(\d{1,5})x(\d{1,5})\.(jpg|jpeg|png|gif|webp)$/i', $originalSrc, $m)) {
                $originalLooksResized = true;
                $originalWidthFromName = (int)$m[1];
            }
        }

        // Decide canonical source
        $fullSrc = $originalSrc;

        // If original is missing OR looks resized OR is smaller than the largest srcset width, promote largest srcset
        if (!empty($largestSrc)) {
            if (empty($fullSrc)) {
                $fullSrc = $largestSrc;
            } elseif ($originalLooksResized) {
                $fullSrc = $largestSrc;
            } elseif ($originalWidthFromName > 0 && $largestWidth > $originalWidthFromName) {
                $fullSrc = $largestSrc;
            }
        }

        // ---------------------------------------------------------------------
        // Rewrite srcset
        // ---------------------------------------------------------------------
        if (!empty($srcset_links[0])) {
            $hasXDescriptor = false;

            foreach ($srcset_links[0] as $i => $srcsetItem) {

                $parts = preg_split('/\s+/', trim($srcsetItem));
                if (count($parts) < 2) continue;

                $srcset_url = trim($parts[0]);
                $srcset_width = trim($parts[1]);

                $webp = '/wp:' . self::$webp;
                if (self::isExcludedFrom('webp', $srcset_url)) {
                    $webp = '';
                }

                if (self::isExcludedLink($srcset_url)) {
                    $newSrcSet .= $srcset_url . ' ' . $srcset_width . ', ';
                    continue;
                }

                // Parse descriptor
                $isXDescriptor = (strpos($srcset_width, 'x') !== false);

                if ($isXDescriptor) {
                    $hasXDescriptor = true;
                    $width_val = (int)str_replace('x', '', $srcset_width);
                    $extension = 'x';
                } else {
                    $width_val = (int)str_replace('w', '', $srcset_width);
                    $extension = 'w';
                }

                // Already CDN URL
                if (strpos($srcset_url, self::$zoneName) !== false) {
                    $newSrcSet .= $srcset_url . ' ' . $width_val . $extension . ', ';
                    continue;
                }

                // SVG passthrough
                if (strpos($srcset_url, '.svg') !== false) {
                    $newSrcSet .= 'https://' . self::$zoneName . '/m:0/a:' . self::reformatUrl($srcset_url) . ' ' . $width_val . $extension . ', ';
                    continue;
                }

                // ---------------------------------------------------------
                // x-descriptor: density maps to r: flag, width is always 1
                // (full size). Use fullSrc as canonical source.
                // No retina injection needed — density is explicit.
                // ---------------------------------------------------------
                if ($isXDescriptor) {
                    $isRetina = ($width_val >= 2) ? '1' : '0';

                    $webpFull = '/wp:' . self::$webp;
                    if (!empty($fullSrc) && self::isExcludedFrom('webp', $fullSrc)) {
                        $webpFull = '';
                    }

                    $rewriteUrl = !empty($fullSrc) ? $fullSrc : $srcset_url;

                    $newSrcSet .= self::$apiUrl . '/r:' . $isRetina . $webpFull . '/w:1/u:' . self::reformatUrl($rewriteUrl) . ' ' . $width_val . 'x, ';
                    continue;
                }

                // ---------------------------------------------------------
                // w-descriptor: standard width-based rewriting
                // ---------------------------------------------------------
                $width_url = $width_val;
                $srcsetWidthExtension = ($width_val === 1) ? '' : ($width_val . 'w');

                // Non-retina URL (use the actual candidate URL)
                $newSrcSet .= self::$apiUrl . '/r:0' . $webp . '/w:' . self::getCurrentMaxWidth($width_url, self::isExcludedFrom('adaptive', $srcset_url)) . '/u:' . self::reformatUrl($srcset_url) . ' ' . $srcsetWidthExtension . ', ';

                // Retina URL (use canonical fullSrc)
                if (self::$settings['retina-in-srcset'] == '1' && !empty($fullSrc)) {
                    $retinaWidth = (int)$width_url * 2;

                    $newSrcSet .= self::$apiUrl . '/r:1' . $webp . '/w:' . self::getCurrentMaxWidth($retinaWidth, self::isExcludedFrom('adaptive', $fullSrc)) . '/u:' . self::reformatUrl($fullSrc) . ' ' . ($retinaWidth . 'w') . ', ';
                }
            }

            // Inject 480/960 only for w-descriptor srcsets
            if (!$hasXDescriptor && !empty($maxWidthMatches[1]) && (int)$maxWidthMatches[1] >= 480 && !empty($fullSrc)) {

                $webp = '/wp:' . self::$webp;
                if (self::isExcludedFrom('webp', $fullSrc)) {
                    $webp = '';
                }

                $newSrcSet .= self::$apiUrl . '/r:0' . $webp . '/w:480/u:' . self::reformatUrl($fullSrc) . ' 480w, ';

                if (self::$settings['retina-in-srcset'] == '1') {
                    $newSrcSet .= self::$apiUrl . '/r:1' . $webp . '/w:960/u:' . self::reformatUrl($fullSrc) . ' 960w, ';
                }
            }

            $newSrcSet = rtrim($newSrcSet);
            $newSrcSet = rtrim($newSrcSet, ',');

            return $newSrcSet;
        }

        return $srcset;
    }

    public function replace_with_480w($srcset)
    {
        // First check if 480w already exists in the srcset
        if (preg_match('/\s480w/', $srcset)) {
            return $srcset;
        }

        // Extract both w: values and srcset widths (for URLs) using regex
        preg_match_all('/w:(\d+)/si', $srcset, $w_matches); // Matches the "w:" pattern widths
        preg_match_all('/(\S+)\s(\d+)w/si', $srcset, $srcset_matches); // Matches srcset widths

        $w_widths = array_map('intval', $w_matches[1]); // w: values
        $srcset_widths = array_map('intval', $srcset_matches[2]); // srcset widths

        // Find the nearest width larger than 480 in the srcset
        $nearest = null;
        foreach ($srcset_widths as $width) {
            if ($width > 480 && ($nearest === null || $width < $nearest)) {
                $nearest = $width;
            }
        }

        // Find the nearest "w:" width larger than 480
        $nearest_w = null;
        foreach ($w_widths as $w_width) {
            if ($w_width > 480 && ($nearest_w === null || $w_width < $nearest_w)) {
                $nearest_w = $w_width;
            }
        }

        // Get the URL pattern for the nearest width
        if ($nearest !== null) {
            preg_match('/(.*\s)' . $nearest . 'w/', $srcset, $matches);
            if (!empty($matches)) {
                $url_pattern = $matches[1];
                // Create new 480w entry using the same URL pattern
                $new_480w_entry = $url_pattern . '480w';

                // Insert the new 480w entry before the nearest width entry since it's smaller
                $srcset = str_replace($url_pattern . $nearest . 'w', $new_480w_entry . ', ' . $url_pattern . $nearest . 'w', $srcset);
            }
        }

        // Handle the "w:" part - add w:480 after the nearest w: value
        if ($nearest_w !== null) {
            // Get the full URL pattern containing w:{nearest_w}
            preg_match('/(.*w:)' . $nearest_w . '(.*)/', $srcset, $url_matches);
            if (!empty($url_matches)) {
                $before_w = $url_matches[1];
                $after_w = $url_matches[2];

                // Create a copy of the URL with w:480
                $new_url = str_replace('w:' . $nearest_w, 'w:480', $url_matches[0]);

                // Add the new URL before the existing one since it's smaller
                $parts = explode($url_matches[0], $srcset, 2);
                $srcset = $parts[0] . $new_url . ', ' . $url_matches[0] . (isset($parts[1]) ? $parts[1] : '');
            }
        }

        return $srcset;
    }

    public function cdnSrcsetOnly($srcset)
    {
        if (empty($srcset)) {
            return $srcset;
        }

        $parts = preg_split('/\s*,\s*/', trim($srcset));
        $rebuilt = [];

        foreach ($parts as $candidate) {
            if (empty($candidate)) {
                continue;
            }

            // Match: URL [optional descriptor]
            if (!preg_match('/^\s*(\S+)(?:\s+(.+))?\s*$/', $candidate, $m)) {
                $rebuilt[] = $candidate;
                continue;
            }

            $url = trim($m[1]);
            $descriptor = !empty($m[2]) ? trim($m[2]) : '';

            // Already CDN
            if (strpos($url, self::$zoneName) !== false) {
                $rebuilt[] = trim($url . ' ' . $descriptor);
                continue;
            }

            // Exclusions
            if ($this->defaultExcluded($url) || self::isExcluded($url) || self::isExcludedFrom('cdn', $url)) {
                $rebuilt[] = trim($url . ' ' . $descriptor);
                continue;
            }

            // Must be image and enabled for serving
            if (!self::isImage($url)) {
                $rebuilt[] = trim($url . ' ' . $descriptor);
                continue;
            }

            // Respect external-url setting
            if ((self::$externalUrlEnabled == 'false' || self::$externalUrlEnabled == '0') && !self::imageUrlMatchingSiteUrl($url)) {
                $rebuilt[] = trim($url . ' ' . $descriptor);
                continue;
            }

            // SVG should use asset endpoint, raster images use image endpoint
            if (stripos($url, '.svg') !== false) {
                $cdnUrl = 'https://' . self::$zoneName . '/m:0/a:' . self::reformatUrl($url);
            } else {
                $webp = '/wp:' . self::$webp;
                if (self::isExcludedFrom('webp', $url)) {
                    $webp = '';
                }

                $cdnUrl = self::$apiUrl
                    . '/r:' . self::$isRetina
                    . $webp
                    . '/w:' . self::getCurrentMaxWidth(1, self::isExcludedFrom('adaptive', $url))
                    . '/u:' . self::reformatUrl($url);
            }

            $rebuilt[] = trim($cdnUrl . ' ' . $descriptor);
        }

        return implode(', ', $rebuilt);
    }


}