<?php

defined('ABSPATH') || exit;
define('WP_COMPRESS_ADVANCED_CACHE', true);

#WPC_CACHE_DEVELOPER_MODE_START

#WPC_CACHE_DEVELOPER_MODE_END

#WPC_CACHE_LOGGED_IN_START
define('WPC_CACHE_LOGGED_IN', false);
#WPC_CACHE_LOGGED_IN_END

#WPC_CACHE_COOKIES_START
define('WPC_CACHE_COOKIES', false);
#WPC_CACHE_COOKIES_END

#WPC_EXCLUDE_COOKIES_START
define('WPC_EXCLUDE_COOKIES', false);
#WPC_EXCLUDE_COOKIES_END

#WPC_MANDATORY_COOKIES_START
define('WPC_MANDATORY_COOKIES', false);
#WPC_MANDATORY_COOKIES_END

$pluginExists = __DIR__ . '/plugins/wp-compress-image-optimizer/';
$pluginCachePath = __DIR__ . '/cache/wp-cio/';


if (version_compare(phpversion(), '7.2', '<')
  || !file_exists($pluginExists)
  || !file_exists($pluginCachePath)) {
  define('WP_COMPRESS_CACHE_PROBLEM', true);
  return;
}

if (!file_exists($pluginExists . 'addons/cache/advancedCache.php')) {
  return;
}

include_once $pluginExists . 'traits/url_key.php';
include_once $pluginExists . 'classes/config.class.php';
include_once $pluginExists . 'addons/cache/advancedCache.php';

//Not needed? Removed 2.6.2025
//$config = new wps_ic_config();
//include_once $config->getConfigPath();


foreach($_COOKIE as $key => $value) {
  if (strpos($key, 'wordpress_logged_in_') === 0 && !WPC_CACHE_LOGGED_IN) {
    return; // Don't cache for logged-in users
  }
}

// Check for excluded cookies
if (defined('WPC_EXCLUDE_COOKIES')) {
    if (WPC_EXCLUDE_COOKIES !== false && is_array(WPC_EXCLUDE_COOKIES)) {
        foreach ($_COOKIE as $cookieName => $cookieValue) {
            foreach (WPC_EXCLUDE_COOKIES as $excludedCookie) {

                // Trailing "_" means: treat as wildcard prefix (e.g. "wp-postpass_")
                if (substr($excludedCookie, -1) === '_') {
                    if (stripos($cookieName, $excludedCookie) === 0) {
                        define('DONOTCACHEPAGE', true);
                        return; // Don't cache if excluded cookie prefix is detected
                    }
                } else {
                    // Exact match (case-insensitive)
                    if (strcasecmp($cookieName, $excludedCookie) === 0) {
                        define('DONOTCACHEPAGE', true);
                        return; // Don't cache if exact excluded cookie is detected
                    }
                }
            }
        }
    }
}

// Check for mandatory cookies - if any are missing, bypass cache entirely
if (defined('WPC_MANDATORY_COOKIES')) {
    if (WPC_MANDATORY_COOKIES !== false && is_array(WPC_MANDATORY_COOKIES)) {
        foreach (WPC_MANDATORY_COOKIES as $mandatoryCookie) {
            // Trailing "_" means: treat as wildcard prefix
            if (substr($mandatoryCookie, -1) === '_') {
                $found = false;
                foreach ($_COOKIE as $cookieName => $cookieValue) {
                    if (strpos($cookieName, $mandatoryCookie) === 0 && !empty($cookieValue)) {
                        $found = true;
                        break;
                    }
                }
                if (!$found) {
                    define('DONOTCACHEPAGE', true);
                    return; // Mandatory cookie prefix not present, bypass cache
                }
            } else {
                if (empty($_COOKIE[$mandatoryCookie])) {
                    define('DONOTCACHEPAGE', true);
                    return; // Mandatory cookie not set, bypass cache
                }
            }
        }
    }
}

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

// Don't cache if critical combine or cache disable headers are present
if (isset($_SERVER['HTTP_CRITICALCOMBINE']) || isset($_SERVER['HTTP_DISABLEWPC'])) {
    return;
}

// Don't cache if DONOTCACHEPAGE constant is defined
if (defined('DONOTCACHEPAGE') && DONOTCACHEPAGE){
	return;
}

$prefix = '';
$cache = new wps_advancedCache();

$mobile = $cache->is_mobile();
$webp = (isset($_SERVER['HTTP_ACCEPT']) && strpos($_SERVER['HTTP_ACCEPT'], 'image/webp') !== false);

if ($mobile && $webp) $prefix = 'mobile-webp';
elseif ($mobile) $prefix = 'mobile';
elseif ($webp) $prefix = 'webp';

if (!$cache->byPass() && $cache->cacheExists($prefix)) {
  $isCacheExpired = $cache->cacheExpired();

  // Not required as get cache sorts this
  $isCacheValid = $cache->cacheValid();

  if (!$isCacheExpired && $isCacheValid) {
    $cache->getCache($prefix);
    die();
  }
}

//If cache wasn't served
function wps_ic_early_buffer_callback($html) {
		global $wps_ic_cdn_instance;

		if (isset($wps_ic_cdn_instance) && method_exists($wps_ic_cdn_instance, 'saveCache')) {
			return $wps_ic_cdn_instance->saveCache($html);
		}

		return $html;
}


//Start the buffer
define('WPS_IC_CACHE_BUFFER_STARTED', true);
ob_start('wps_ic_early_buffer_callback');