&lt;?php
/**
 * Built-in Cache System
 *
 * Ultra-fast page caching system built into the theme
 * No plugins needed - WP Rocket alternative
 *
 * @package MyTheme
 */

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

class MyTheme_Cache_System {

    private $cache_dir;
    private $cache_enabled;
    private $cache_duration;

    /**
     * Constructor
     */
    public function __construct() {
        // Cache settings
        $this->cache_enabled = function_exists('mytheme_get_option') ? mytheme_get_option('cache_enabled', true) : true;
        $this->cache_duration = function_exists('mytheme_get_option') ? mytheme_get_option('cache_duration', 3600) : 3600;

        // Cache directory
        $upload_dir = wp_upload_dir();
        $this->cache_dir = $upload_dir['basedir'] . '/mytheme-cache';

        // Initialize
        $this->init();
    }

    /**
     * Initialize cache system
     */
    private function init() {
        if (!$this->cache_enabled) {
            return;
        }

        // Create cache directory
        $this->create_cache_dir();

        // Start output buffering for page caching
        add_action('template_redirect', array($this, 'start_page_cache'), 1);

        // Clear cache actions
        add_action('save_post', array($this, 'clear_post_cache'));
        add_action('comment_post', array($this, 'clear_post_cache'));
        add_action('switch_theme', array($this, 'clear_all_cache'));
        add_action('mytheme_clear_cache', array($this, 'clear_all_cache'));

        // Admin bar cache clear button
        add_action('admin_bar_menu', array($this, 'add_cache_clear_button'), 999);
        add_action('admin_post_mytheme_clear_cache', array($this, 'handle_cache_clear'));

        // AJAX cache clear
        add_action('wp_ajax_mytheme_clear_cache', array($this, 'ajax_clear_cache'));
    }

    /**
     * Create cache directory
     */
    private function create_cache_dir() {
        if (!file_exists($this->cache_dir)) {
            wp_mkdir_p($this->cache_dir);

            // Add .htaccess for security
            $htaccess = $this->cache_dir . '/.htaccess';
            if (!file_exists($htaccess)) {
                file_put_contents($htaccess, 'deny from all');
            }
        }
    }

    /**
     * Get cache file path
     */
    private function get_cache_file_path($url = null) {
        if ($url === null) {
            $url = $_SERVER['REQUEST_URI'];
        }

        // Generate unique cache key
        $cache_key = md5($url . (is_user_logged_in() ? 'logged_in' : 'guest'));

        return $this->cache_dir . '/' . $cache_key . '.html';
    }

    /**
     * Start page caching
     */
    public function start_page_cache() {
        // Don't cache for logged-in users or admin
        if (is_user_logged_in() || is_admin()) {
            return;
        }

        // Don't cache POST requests
        if ($_SERVER['REQUEST_METHOD'] === 'POST') {
            return;
        }

        // Don't cache search, 404, feeds
        if (is_search() || is_404() || is_feed() || is_trackback()) {
            return;
        }

        // Check if cached version exists
        $cache_file = $this->get_cache_file_path();

        if (file_exists($cache_file)) {
            $cache_age = time() - filemtime($cache_file);

            // Serve cached version if not expired
            if ($cache_age < $this->cache_duration) {
                header('X-MyTheme-Cache: HIT');
                header('Cache-Control: max-age=' . $this->cache_duration);
                readfile($cache_file);
                exit;
            } else {
                // Delete expired cache
                unlink($cache_file);
            }
        }

        // Start output buffering to create cache
        header('X-MyTheme-Cache: MISS');
        ob_start(array($this, 'save_page_cache'));
    }

    /**
     * Save page to cache
     */
    public function save_page_cache($html) {
        // Don't cache if HTML is empty or too small
        if (strlen($html) < 255) {
            return $html;
        }

        // Save to cache file
        $cache_file = $this->get_cache_file_path();
        file_put_contents($cache_file, $html);

        return $html;
    }

    /**
     * Clear post cache
     */
    public function clear_post_cache($post_id) {
        $post_url = get_permalink($post_id);
        $cache_file = $this->get_cache_file_path($post_url);

        if (file_exists($cache_file)) {
            unlink($cache_file);
        }

        // Also clear homepage and category archives
        $this->clear_homepage_cache();
    }

    /**
     * Clear homepage cache
     */
    private function clear_homepage_cache() {
        $home_cache = $this->get_cache_file_path('/');
        if (file_exists($home_cache)) {
            unlink($home_cache);
        }
    }

    /**
     * Clear all cache
     */
    public function clear_all_cache() {
        if (!file_exists($this->cache_dir)) {
            return;
        }

        // Delete all cache files
        $files = glob($this->cache_dir . '/*.html');
        foreach ($files as $file) {
            if (is_file($file)) {
                unlink($file);
            }
        }
    }

    /**
     * Add cache clear button to admin bar
     */
    public function add_cache_clear_button($wp_admin_bar) {
        if (!current_user_can('manage_options')) {
            return;
        }

        $wp_admin_bar->add_node(array(
            'id' => 'mytheme-clear-cache',
            'title' => 'Clear Cache',
            'href' => wp_nonce_url(admin_url('admin-post.php?action=mytheme_clear_cache'), 'clear_cache'),
            'meta' => array(
                'title' => 'Clear MyTheme Cache',
            ),
        ));
    }

    /**
     * Handle cache clear from admin bar
     */
    public function handle_cache_clear() {
        check_admin_referer('clear_cache');

        if (!current_user_can('manage_options')) {
            wp_die('Unauthorized');
        }

        $this->clear_all_cache();

        wp_redirect(wp_get_referer());
        exit;
    }

    /**
     * AJAX clear cache
     */
    public function ajax_clear_cache() {
        check_ajax_referer('mytheme-nonce', 'nonce');

        if (!current_user_can('manage_options')) {
            wp_send_json_error('Unauthorized');
        }

        $this->clear_all_cache();

        wp_send_json_success('Cache cleared successfully');
    }

    /**
     * Get cache statistics
     */
    public function get_cache_stats() {
        if (!file_exists($this->cache_dir)) {
            return array(
                'files' => 0,
                'size' => 0,
            );
        }

        $files = glob($this->cache_dir . '/*.html');
        $total_size = 0;

        foreach ($files as $file) {
            $total_size += filesize($file);
        }

        return array(
            'files' => count($files),
            'size' => size_format($total_size),
            'size_bytes' => $total_size,
        );
    }
}

// Initialize cache system
new MyTheme_Cache_System();

/**
 * Helper function to clear cache
 */
function mytheme_clear_cache() {
    do_action('mytheme_clear_cache');
}
‹     í[{S9ÿŸªýZŠº1Y¶‡79BØÀ]^‡Íí^m]¹äÙžefäi Þ[ªîkÜ×»OrÝÒ¼GvH —„‚ªÔênõã§nù“/÷žM'Ó¥Ö“'Kä	y{¾´½SgÂHo&$`ç.|Q{D…$S:fÄ/¡ˆÈ—/”œHX
ÿ†ËÞp2õã±
2æ2—Øä§wäœ;—LêK…TzW,óç)u.‘ÿëY?áÑZZjµÈÉ{øu&ðq½ˆ9ÒŸ-Á`ã{—¼¹ëèyïÝQÿÔZ]%ÿZ"ðÃ`áÞÒÍÒ’ãS!R¾µÅÞ"P*Òiä]QÉÈŠ£&AÂžiœ…tè3×8çÆl‡‡{š£2,þ<!Ç<2ŠÉ£d¨¥ÄCßsÈ(\H'¥l¤{P¬Z‰[“,/²™9ñ„}XRŽd`!EÃ
fÊ-ƒ1“>Å)k•<#õá†Uâe5	¨ÃVÉ®ú½gœîü^$§Ì@ôÆÓvEãïÄª%sè8àÑ,W+žúœºè?Pæz:ÈŸ«ó´W´…•¿XC
aæEÖ?É±Z‰®¶"·ÊŠœ…žô¨ïýÎªÌ=˜IeÞÔB"_§Ò‰%ÉT$¾²øÐ,¡âßE"ü‰˜Œ£07ÀMÙšC9Î<£&Õ 3n®È¥'i$	å4– 
£‹%F<*ÁF¶„ºî€:Úõ°õ©Ü#¦åƒ÷iÑYC	oK ÷2ÒX«MÒ©hpì3%ÛÐœ…Qš Wl0å¢.ÅAj*•Rˆš"‡å¹ˆkO:“
¯9\¨ï€IšJš^ÓÞ†WÑrGn Ø?Ì¬§èÁ‰RòÐ(”â‚,€âš<$Õ¢%kNè³9ûÐ,•Õn³¥	]Ÿ¥Ôwõ—£Ÿ‹2Š ¿Ò÷·’©‹«s|QNÍËïz†Us}äÁ–h­‚Øj5éagÁ%L¦uÚ‚¡²pÉÚDêCVe­`NyrV¢\ÉHê0Šh™ñ°öJëú§„5ÅñGQ’à‘(!Ó
ôà—…32Šx u„o­–%Ý,•?Õó
íð$'‹=ƒÇ”Þ¦Ö4VâÈ#„±ïWý¤§ê“úŒRëV½“ó¿ŸœÿbŸüíâ¤×\œŸYÿœ‡Ñ/YÈ"Ô)½ßâ4°.Y¦µ‚0Ü·«µX#ObÁ¢ÏÇcæ¼°'°•=ZpÄZã˜’•2Hf/[ðA ßßš—úp¨Ÿs*¡*ÚWË¡ &™!Tõ^°~Å
C
NJ^1Ùá?+ÚÆêÇšEÞ½íõü74¢(‡BÍÍ¯Oú§o_@mbáJëÓÀ"gÒ$›íÍ&A™-ª[ÖÙV0ûŒôÙÔøÎåþ}¬Ž'Ì¹DiJ#—\Ð‡:Í«á©.ƒS^C÷PÂŒœ¸¦e2‡!v@¤`ÐØ*ÁõT\[‡¿‹®Xu >äv2 wkpV¸o®ˆMÈ6aÔeQÃúÙN[U³»äô¬_…²"½¢²¡—÷wI@ßÛ ù@e¢Qvœ/.î¿b‹*™î›JJ˜/˜a3ŽÌg€K‰‘´	ktqè{áå¹7s¢kNU	Í¦S8a—>hÜ×g½^Ñº|8P Ó¨”™ª4,T™søPj@C]r%æ!Z™1žf¿ Õ ¾Nû¯_Af¨å!MrND '^)? aôY˜2Ü'ëÝ®9‰"™—Æj?éVTÚ|Rê.8¿sê¦VÅtØä*j*U•b…xƒW‹ðÆŠúì•z#=¦dÜÐ”E`_©)õÞÇ›!ãú©P¶0[Ên;òOÊõ	˜
H¨ŒÁ@’¡â$ˆþÞ«ß(û¤kÒcv±é3	ó×ŠY#ÿ¢íqN/6'T…í×ì˜³™kÇÉÞ‹C½UÈ²[YÖWÝ±`ÿÀ±¯q6SL¥XÁ­êãØçÃ†±h{¢k´b–r QgG™^M…æSÕ,©%ôÙaÙ¢¹? ïf³cÿQo>‘hÚœ.t…¹ål¬`—6«5÷@ƒa¯êB‡b7MCW}'%¬ñQI”}ˆ
…ÜeÉ	Sâby®E‰•Ý-¡ÎÉS³L*=é3M­CóØD5‰ØH!†øÓÐêà'Ý^ÛˆLkÓÉô™nL]ïjva>—ELR%Ê°1³ÆÉYlÔ¼À}þa{ªšýR|èîïV¡Q¿*(%ªƒlâ9°"‹°€( ãŸ6à×cë"¤±œðÈû¹–ÔKø\€–‚À-½(kÀgÍTñâ-Q^ÇÒMÝäf‹s«rïa2’dÖKÃZE¢ñ¤?Ü!ÝÁ¯/™£ˆG÷hÔœ³ˆÕUCRukCAq› ­ŸYs£5¿^€Sö{ŽXhßüÔÃâ^Ž‘¹Ù©^eg»YŸ`DÓä³~Ê¡³"¹¤þ %ÁÊâÍþm£"‡ôAŸk'ÏM­¾4aqn‡Ç¡L„WQ/3~€¦Ò\ý`8“	ëeðÒºQ/ºæ½Ùµñå•
ßäÞ)ó¡xÍCJòrvCäesÐÏBÎå/–Wñ}Úþ³÷Ÿ6ÉËµö2a¡Ã]èÌ–/ú?ÚÛËÏ—öáÜ
@Šƒå‰”ÓÝVëúúzMx =Š5[øT´’ÁV{mgù»ÌDjñ.X ÌaÌùØgkªëm¤52ñì—oÉE·:kåÃïJŽÅ]U‡|î"[|½Ðõè†—k!“­8Ùøhó‘­ælŸá$†b‰;—6£bfë{M[r{Æã1[û-d\‘…ÛSö¨Lä“]Ô€¦À„ìðU"ÏAAAlòŠÓÚ`èñ5c“¼ðÆ„­šÇ¶û,Þx"Å~+ç°H„OÃq†<d¡ýòy²*4l u‹Ôv9p¡ó8\o¯?µÛ[öúV¿³µÛéîvžþÐîîn´ëLõ‚yœUùrxžS'|D´™^¡çvÉ…r9×‘#}éöp>¢ë‘š“Ù@fÙ—lvÍ#W‹§—ðDzSpHÀ‡Ø~¦³¹’MÂ±úÎ§”ÆMrñüŒ$ñDÒësK¨áÜ½ò`´Y`EœXHè˜¢t¶4©¢·4’š'Ùt¶…ÅûNCÈÉ%J•‹:}çE›&™Ÿ‡×S;¹ˆhé½¢ñÒmµŸ¶¦ì=ó…=pÈ¿îzg£»awláPŸ¹k¿NÙx¿•³7Åì-ôkPã£€ÄÕ#êW DL ,±¡÷v˜}=¡ñÃÆo[ –\†ü~»töˆ$_IŽµët²¼M±¤‡®#ïÐu»ä'ðy¾#}Nþ
¾ƒßà»{„	¨%R`(i•!œ^1!ñÕv8f2wDÅÝ\”F š÷g¯VG^HCÊÐè’IR„!)@ä‰§hS˜Ö45Á-¥CJ.‘Ð9¸â!€Ng§ÓÝØÚÙùÚ0ÇT¼TGØnäaŽÛ|GüZNAçn Ó^W ³ußåKrþûïÿòBûœIA^*ÿiàyv¯Ef¶ŽŽ" y
HU4PhÕ¬#R{¨@EŽ9#”¬Žlmnt7·Ö¿ÚfìÄÙi3¤ºŸ,:ìQ§!ôf@òÄ|º¿<KŒ‘õCªú1Ëíµ÷>[+TRÌM”÷3IÐ)<A½UÐàÈaæ.‹§’HD4Â¯-çLÈˆQGH­n.ÕZÆDÒc™;³7;[íÍíõo¡n1 Í„
á3…2ÙÔcårÀyÚïlÎ|†ÊÅ7§Ú}3™™î»câ~¬ÞC43€ÉÀ#º>s&!÷ùxÖ4)Õ,jß$o5dÏªQz	=ÀØÜiomtÚ_ßõ
 8~¬(àì‰ gÅk[åçØBÒ¡çÃôˆwÄ‹;]¯œk×•S(E	´EOûïhOßá×Ê´ïîÅ*ÅyašÅ™´¤­êIüïØÃj¡®IRÎÙ8ö•²¾H/ ª×–F3òŽƒ™`àüùYæox2™ã!€ÇV»Óî¬oÍ•ízÂáW,Âí]±ÐBÛ¡b’¿îy¬5î€í…Û÷5{Ô½VÑÞÃ¿ÞK¼GŽÁ{éUj|wø a£"{;ƒiRjQšY‘^¿ªÅ×žœ¸½RÓý.ò„0£I1cn|€èÃ=Q¥zxo~¾2x©v14²f„–Ì¿Àòå¥(oÔ—à˜T^¥~»7H©¥5ø¢<6Œ Ð˜°Ú8f
uð¯¹õ\TR&)ÀHyc“¬:Ü+^§¸ÕF1!^µ’¼ÓÙþîF‹•ÏŒ)Ý~ggw}s·Û¾ï‹‘ÿ{©’¥é»'8ƒ·²êOdä©77S­àWRŠ…É/`ÍßS)–Ms¬ó°d»ÛÝÜØÞüºK‘äbµ
!¹»aäËÃˆ@’Õ*|ü”§é=]¬VúrÆWJCsrD©·(…[Ü: <Œ÷¾ë››O×7?çµªú,˜,þ›v·æDH  