<?php
/**
 * WebSocket 服务端启动文件 (WSS 加密版)
 * 
 * 使用方法:
 *   php socket.php start          # 调试模式启动（前台运行）
 *   php socket.php start -d       # 守护进程模式启动（后台运行）
 *   php socket.php stop           # 停止服务
 *   php socket.php restart        # 重启服务
 *   php socket.php status         # 查看运行状态
 * 
 * 客户端连接地址:
 *   wss://api.myjie.cn:2345?type=user&token=xxx&form_type=3&to_uid=对方UID
 */

require __DIR__ . '/vendor/autoload.php';

// 引导 ThinkPHP 框架（使模型、数据库等可用）
(new \think\App())->initialize();

use Workerman\Worker;
use Workerman\Connection\TcpConnection;

// 日志目录
define('LOG_PATH', __DIR__ . '/runtime/logs/workerman/');
if (!is_dir(LOG_PATH)) {
    mkdir(LOG_PATH, 0755, true);
}

// ========== SSL 证书配置（WSS 必须） ==========
// 宝塔证书默认文件名：fullchain.pem（证书）、privkey.pem（私钥）
//$ssl_cert_path = '/www/wwwroot/api.myjie.cn/config/ssl/fullchain.pem';    // 证书文件
//$ssl_key_path  = '/www/wwwroot/api.myjie.cn/config/ssl/privkey.pem';     // 私钥文件
$ssl_cert_path = '/www/server/panel/vhost/ssl/api.myjie.cn/fullchain.pem';    // 证书文件
$ssl_key_path  = '/www/server/panel/vhost/ssl/api.myjie.cn/privkey.pem';     // 私钥文件
$context = [];
if (file_exists($ssl_cert_path) && file_exists($ssl_key_path)) {
    $context = [
        'ssl' => [
            'local_cert'  => $ssl_cert_path,
            'local_pk'    => $ssl_key_path,
            'verify_peer' => false,
        ]
    ];
}
// ==============================================

// 创建 WebSocket 服务（带 SSL 上下文）
$ws_worker = new Worker('websocket://0.0.0.0:2345', $context);

// 启用 SSL 传输层（使 websocket:// 升级为 wss://）
if (!empty($context)) {
    $ws_worker->transport = 'ssl';
}

// 设置进程名称
$ws_worker->name = 'ChatWebSocket';

// 设置进程数
$ws_worker->count = 4;

// 设置心跳（60秒无响应则断开）
$ws_worker->pingInterval = 60;
$ws_worker->pingNotResponseLimit = 1;

// 当进程启动时
$ws_worker->onWorkerStart = function($worker) {
    echo "[Worker #{$worker->id}] started\n";
    
    // 初始化 ChatService
    $chatService = new \app\services\workerman\chat\ChatService($worker);
    $worker->chatService = $chatService;
};

// 当客户端连接时
$ws_worker->onConnect = function(TcpConnection $connection) {
    $addr = $connection->getRemoteAddress();
    echo "[Connect] {$addr}\n";
};

// WebSocket 握手回调 - 解析 URL 查询参数（包括 to_uid）并自动登录
$ws_worker->onWebSocketConnect = function(TcpConnection $connection) use ($ws_worker) {
    // 从 URL 查询字符串解析参数
    // 例如: wss://api.myjie.cn:2345?type=user&token=xxx&from=3&to_uid=456
    $query = $_GET ?? [];
    
    $connection->type      = $query['type'] ?? 'user';
    $connection->token     = $query['token'] ?? '';
    $connection->form_type = $query['form_type'] ?? 3;
    $connection->to_uid    = isset($query['to_uid']) ? intval($query['to_uid']) : 0;  // 聊天对象UID
    
    // 自动登录：通过 token 验证用户
    if ($connection->token) {
        $userInfo = \app\model\api\User::where('token', $connection->token)->find();
        if ($userInfo) {
            $connection->user = (object)$userInfo->toArray();
            $connection->chatToUid = $connection->to_uid;
            $ws_worker->chatService->setUser($connection);
        }
    }
    
    echo "[WebSocket Connect] type={$connection->type}, uid={$connection->user->uid ?? 0}, to_uid={$connection->to_uid}\n";
};

// 当收到客户端消息时
$ws_worker->onMessage = function(TcpConnection $connection, $data) use (&$chatService) {
    $chatService->onMessage($connection, $data);
};

// 当客户端断开连接时
$ws_worker->onClose = function(TcpConnection $connection) use (&$chatService) {
    $chatService->onClose($connection);
};

// 当连接出错时
$ws_worker->onError = function(TcpConnection $connection, $code, $msg) {
    echo "[Error] {$code}: {$msg}\n";
};

// 输出启动信息
$ssl_ok = !empty($context);
echo "\n";
echo "========================================\n";
echo "  Chat WebSocket Server (WSS)\n";
echo "  Address: " . ($ssl_ok ? "wss" : "ws") . "://0.0.0.0:2345\n";
if (!$ssl_ok) {
    echo "  [警告] SSL 证书未配置，运行在 ws 模式\n";
    echo "  请将证书放到 config/ssl/cert.pem 和 config/ssl/key.pem\n";
}
echo "  PID: " . getmypid() . "\n";
echo "========================================\n\n";

// 运行
Worker::runAll();