[Closed] My URLs are not referencing the right lang, when I translate automatically. They remain in the defau...

/**
 * Translate an ACF Link URL from default language to current language (WPML-aware) with per-request caching.
 * - Resolves posts/pages by ID to get the correct translated slug.
 * - Falls back to wpml_permalink for archives/terms/custom endpoints.
 * - Preserves query params and fragments.
 * - Skips external, mailto:, tel:, and fragment-only links.
 *
 * Expects ACF link array: ['url' => '', 'title' => '', 'target' => '']
 */
function tpl_translate_acf_link($link) {
    if (empty($link) || !is_array($link) || empty($link['url'])) {
        return $link;
    }

    $raw = trim((string) $link['url']);

    // Fast path: non-http(s) or fragment-only — no translation, but sanitize.
    if (preg_match('#^(mailto:|tel:|#)#i', $raw)) {
        $link['url'] = esc_url_raw($raw);
        return $link;
    }

    // Cache key: include current language + home URL to be safe across multisite / domains per language.
    static $cache = [];
    $lang = defined('ICL_LANGUAGE_CODE') ? ICL_LANGUAGE_CODE : '';
    $cache_key = md5(home_url('/') . '|' . $lang . '|' . $raw);

    if (isset($cache[$cache_key])) {
        $link['url'] = $cache[$cache_key];
        return $link;
    }

    // Parse once
    $home         = home_url('/');
    $home_host    = wp_parse_url($home, PHP_URL_HOST);
    $is_relative  = (strpos($raw, '/') === 0);
    $abs_for_host = $is_relative ? home_url($raw) : $raw;
    $abs_host     = wp_parse_url($abs_for_host, PHP_URL_HOST);

    // External host → leave untouched (but sanitize)
    if ($abs_host && $home_host && strcasecmp($abs_host, $home_host) !== 0) {
        $safe = esc_url_raw($raw);
        $cache[$cache_key] = $safe;
        $link['url'] = $safe;
        return $link;
    }

    // Remember original query/fragment to re-append later
    $orig_parts = wp_parse_url($raw);
    $orig_query = isset($orig_parts['query']) ? $orig_parts['query'] : '';
    $orig_frag  = isset($orig_parts['fragment']) ? $orig_parts['fragment'] : '';

    // 1) Try to resolve a post/page by ID (best for exact translated slugs)
    $abs_url  = $is_relative ? $abs_for_host : $raw;
    $post_id  = url_to_postid($abs_url);
    $translated_url = '';

    if ($post_id) {
        $ptype          = get_post_type($post_id) ?: 'post';
        $translated_id  = apply_filters('wpml_object_id', $post_id, $ptype, true, $lang);
        if ($translated_id) {
            $translated_url = get_permalink($translated_id);
        }
    }

    // 2) Fallback for archives/terms/custom endpoints
    if (!$translated_url) {
        $converted = apply_filters('wpml_permalink', $raw, $lang);
        if (is_string($converted) && strpos($converted, '/') === 0) {
            $converted = home_url($converted);
        }
        $translated_url = $converted ?: ($is_relative ? $abs_for_host : $raw);
    }

    // Re-append original query params if they existed (merge with any that translation added)
    if ($orig_query) {
        parse_str($orig_query, $orig_q);
        $translated_parts = wp_parse_url($translated_url);
        $translated_q     = [];
        if (!empty($translated_parts['query'])) {
            parse_str($translated_parts['query'], $translated_q);
        }
        // Original params win if keys overlap (change order if you want the opposite)
        $merged_q = array_merge($translated_q, $orig_q);
        $base     = isset($translated_parts['scheme'])
            ? ( $translated_parts['scheme'] . '://' . ($translated_parts['host'] ?? '') . (isset($translated_parts['port']) ? ':' . $translated_parts['port'] : '') . ($translated_parts['path'] ?? '/') )
            : ($translated_parts['path'] ?? '/');
        $translated_url = add_query_arg($merged_q, $base);
    }

    // Re-append fragment
    if ($orig_frag) {
        // Strip any existing fragment first
        $translated_url = preg_replace('/#.*$/', '', $translated_url) . '#' . rawurlencode($orig_frag);
        // If you don't want rawurlencode for fragments, swap to . $orig_frag
    }

    $safe = esc_url_raw($translated_url);
    $cache[$cache_key] = $safe;
    $link['url'] = $safe;
    return $link;
}