<?php
/**
 * 🧹 缓存管理接口
 * 
 * 访问方式: /api/cache_manage.php?action=xxx
 */

require '../zb_system/function/c_system_base.php';
$zbp->Load();

require_once 'cache.php';

header('Content-Type: application/json; charset=utf-8');
header('Access-Control-Allow-Origin: *');

$action = $_GET['action'] ?? 'stats';

$result = array();

switch ($action) {
    case 'stats':
        $result = array(
            'code' => 200,
            'message' => '📊 缓存统计',
            'data' => ApiCache::getStats()
        );
        break;
        
    case 'clean':
        $count = ApiCache::cleanExpired();
        $result = array(
            'code' => 200,
            'message' => "🧹 已清理 {$count} 个过期缓存",
            'data' => array(
                'cleaned' => $count,
                'stats' => ApiCache::getStats()
            )
        );
        break;
        
    case 'clear':
        $act = $_GET['act'] ?? null;
        if ($act) {
            $count = ApiCache::clearByAct($act);
            $result = array(
                'code' => 200,
                'message' => "🗑️ 已清除 {$act} 相关的 {$count} 个缓存",
                'data' => array(
                    'act' => $act,
                    'cleaned' => $count
                )
            );
        } else {
            ApiCache::clear();
            $result = array(
                'code' => 200,
                'message' => '🗑️ 已清除所有缓存',
                'data' => ApiCache::getStats()
            );
        }
        break;
        
    case 'config':
        $result = array(
            'code' => 200,
            'message' => '⚙️ 缓存配置',
            'data' => array(
                'ttl_config' => array(
                    'list' => '180秒 (3分钟)',
                    'detail' => '300秒 (5分钟)',
                    'ingredients' => '300秒 (5分钟)',
                    'ingredient_detail' => '600秒 (10分钟)',
                    'search' => '120秒 (2分钟)',
                    'categories' => '600秒 (10分钟)',
                    'tags' => '600秒 (10分钟)',
                    'stats' => '60秒 (1分钟)',
                    'like' => '不缓存',
                    'recommend' => '不缓存',
                    'view' => '不缓存'
                ),
                'auto_clean' => '1%概率自动清理过期缓存'
            )
        );
        break;
        
    default:
        $result = array(
            'code' => 200,
            'message' => '🧹 缓存管理接口',
            'data' => array(
                'actions' => array(
                    'stats' => '查看缓存统计',
                    'clean' => '清理过期缓存',
                    'clear' => '清除所有缓存',
                    'clear&act=xxx' => '清除指定接口缓存',
                    'config' => '查看缓存配置'
                )
            )
        );
        break;
}

echo json_encode($result, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
exit;