<?php

/**
 * error code 说明.
 * <ul>

 *    <li>-41001: encodingAesKey 非法</li>
 *    <li>-41003: aes 解密失败</li>
 *    <li>-41004: 解密后得到的buffer非法</li>
 *    <li>-41005: base64加密失败</li>
 *    <li>-41016: base64解密失败</li>
 * </ul>
 */
class ErrorCode
{
	public static $OK = 0;
	public static $IllegalAesKey = -41001;
	public static $IllegalIv = -41002;
	public static $IllegalBuffer = -41003;
	public static $DecodeBase64Error = -41004;

	public static $GameServerFail = -1; // 游戏服务器失败
	public static $ParamErr = -98; // 参数异常
	public static $NoPlayer = -99; // 找不到玩家
	private static $errcodeMsg = null;
	/**
	 * 获取错误码对应的错误信息说明
	 */
	private static function getErrcodeMsg($errcode)
	{
		if (ErrorCode::$errcodeMsg == null) {
			ErrorCode::$errcodeMsg = array(
				ErrorCode::$OK => "ok",
				ErrorCode::$GameServerFail => "game server fail",
				ErrorCode::$ParamErr => "param error",
				ErrorCode::$NoPlayer => "no player",
			);
		}
		if (array_key_exists($errcode, ErrorCode::$errcodeMsg)) {
			return ErrorCode::$errcodeMsg[$errcode];
		}
		return $errcode . "";
	}

	/**
	 * 游戏服务器返回成功信息
	 * @param array $playerData 通知前端需要更新的玩家数据
	 * @param array $optData 通知前端本次操作数据，业务逻辑自行定义
	 */
	public static function retOK($playerData = [], $optData = [])
	{
		// gserrcode 游戏服务器处理结果
		$code = ErrorCode::$OK;
		$ret = ["gserrcode" => $code, "gserrmsg" => ErrorCode::getErrcodeMsg($code)];

		// 同步更新的玩家数据
		if ($playerData) {
			$ret["playerData"] = $playerData;
		}

		// 操作数据
		if ($optData) {
			$ret["optData"] = $optData;
		}
		\Logging\LogInfo('retOK: ' . print_r($ret, true));
		return $ret;
	}

	/**
	 * 游戏服务器返回错误信息
	 * @param mixed $code 错误码
	 * @param string $errInfo 错误附加信息，自定义内容，会添加在errmsg后
	 */
	public static function retErr($code, $errInfo = "")
	{
		if ($errInfo) {
			$errInfo = " => " . $errInfo;
		}
		$ret = ["gserrcode" => $code, "gserrmsg" => ErrorCode::getErrcodeMsg($code) . $errInfo];
		\Logging\LogInfo('retErr: ' . print_r($ret, true));
		return $ret;
	}
}