using System.ComponentModel;

namespace IM.Commons
{
    public enum ResultCode
    {
        // 3.1 成功类
        /// <summary>成功响应</summary>
        [Description("成功")]
        SUCCESS = 0,

        // 3.2 系统级错误（1000 ~ 1999）
        /// <summary>未知异常</summary>
        [Description("系统错误")]
        SYSTEM_ERROR = 1000,
        /// <summary>服务器维护中或宕机</summary>
        [Description("服务不可用")]
        SERVICE_UNAVAILABLE = 1001,
        /// <summary>后端超时</summary>
        [Description("请求超时")]
        REQUEST_TIMEOUT = 1002,
        /// <summary>缺少或参数不合法</summary>
        [Description("参数错误")]
        PARAMETER_ERROR = 1003,
        /// <summary>数据库读写失败</summary>
        [Description("数据库错误")]
        DATABASE_ERROR = 1004,
        /// <summary>无权限访问</summary>
        [Description("权限不足")]
        PERMISSION_DENIED = 1005,
        /// <summary>Token 无效/过期</summary>
        [Description("认证失败")]
        AUTH_FAILED = 1006,

        // 3.3 用户相关错误（2000 ~ 2099）
        /// <summary>查询不到用户</summary>
        [Description("用户不存在")]
        USER_NOT_FOUND = 2000,
        /// <summary>注册时用户已存在</summary>
        [Description("用户已存在")]
        USER_ALREADY_EXISTS = 2001,
        /// <summary>登录密码错误</summary>
        [Description("密码错误")]
        PASSWORD_ERROR = 2002,
        /// <summary>被管理员封禁</summary>
        [Description("用户被禁用")]
        USER_DISABLED = 2003,
        /// <summary>需重新登录</summary>
        [Description("登录过期")]
        LOGIN_EXPIRED = 2004,

        // 3.4 好友相关错误（2100 ~ 2199）
        /// <summary>重复申请</summary>
        [Description("好友申请已存在")]
        FRIEND_REQUEST_EXISTS = 2100,
        /// <summary>不是好友</summary>
        [Description("好友关系不存在")]
        FRIEND_RELATION_NOT_FOUND = 2101,
        /// <summary>重复添加</summary>
        [Description("已经是好友")]
        ALREADY_FRIENDS = 2102,
        /// <summary>被对方拒绝</summary>
        [Description("好友请求被拒绝")]
        FRIEND_REQUEST_REJECTED = 2103,
        /// <summary>被对方拉黑</summary>
        [Description("无法申请加好友")]
        CANNOT_ADD_FRIEND = 2104,
        /// <summary>好友请求不存在</summary>
        [Description("好友请求不存在")]
        FRIEND_REQUEST_NOT_FOUND = 2105,
        /// <summary>处理好友请求操作无效</summary>
        [Description("处理好友请求操作无效")]
        INVALID_ACTION = 2106,
        /// <summary>注册错误</summary>
        [Description("注册错误")]
        REGISTER_ERROR = 2107,

        // 3.5 群聊相关错误（2200 ~ 2299）
        /// <summary>查询不到群</summary>
        [Description("群不存在")]
        GROUP_NOT_FOUND = 2200,
        /// <summary>不能重复加入</summary>
        [Description("已在群中")]
        ALREADY_IN_GROUP = 2201,
        /// <summary>超出限制</summary>
        [Description("群成员已满")]
        GROUP_FULL = 2202,
        /// <summary>需要邀请/验证</summary>
        [Description("无加群权限")]
        NO_GROUP_PERMISSION = 2203,
        /// <summary>邀请链接过期</summary>
        [Description("群邀请已过期")]
        GROUP_INVITE_EXPIRED = 2204,
        /// <summary>群聊请求不存在</summary>
        [Description("群聊请求不存在")]
        GROUP_REQUEST_NOT_FOUND = 2205,
        /// <summary>群聊成员成员不存在</summary>
        [Description("群聊成员不存在")]
        GROUP_MEMBER_NOT_FOUNT = 2206,

        // 3.6 消息相关错误（2300 ~ 2399）
        /// <summary>发送时异常</summary>
        [Description("消息发送失败")]
        MESSAGE_SEND_FAILED = 2300,
        /// <summary>查询不到消息</summary>
        [Description("消息不存在")]
        MESSAGE_NOT_FOUND = 2301,
        /// <summary>超过时间限制</summary>
        [Description("消息撤回失败")]
        MESSAGE_RECALL_FAILED = 2302,
        /// <summary>message_type 不合法</summary>
        [Description("不支持的消息类型")]
        UNSUPPORTED_MESSAGE_TYPE = 2303,

        // 3.7 文件相关错误（2400 ~ 2499）
        /// <summary>存储服务错误</summary>
        [Description("文件上传失败")]
        FILE_UPLOAD_FAILED = 2400,
        /// <summary>下载时未找到</summary>
        [Description("文件不存在")]
        FILE_NOT_FOUND = 2401,
        /// <summary>超过配置限制</summary>
        [Description("文件大小超限")]
        FILE_TOO_LARGE = 2402,
        /// <summary>格式不允许</summary>
        [Description("文件类型不支持")]
        FILE_TYPE_NOT_SUPPORTED = 2403,

        // 3.8 管理后台相关错误（3000 ~ 3099）
        /// <summary>账号错误</summary>
        [Description("管理员不存在")]
        ADMIN_NOT_FOUND = 3000,
        /// <summary>后台登录失败</summary>
        [Description("密码错误")]
        ADMIN_PASSWORD_ERROR = 3001,
        /// <summary>角色未找到</summary>
        [Description("角色不存在")]
        ROLE_NOT_FOUND = 3002,
        /// <summary>无操作权限</summary>
        [Description("权限不足")]
        ADMIN_PERMISSION_DENIED = 3003,
        /// <summary>后台日志写入失败</summary>
        [Description("操作记录失败")]
        OPERATION_LOG_FAILED = 3004,

        // 3.9 会话相关错误（3100 ~ 3199）
        /// <summary>发送时异常</summary>
        [Description("会话不存在")]
        CONVERSATION_NOT_FOUND = 3100,

        // 3.10 分片相关错误（3200 ~ 3299）
        /// <summary>分片不存在异常</summary>
        [Description("分片不存在")]
        CHUNK_NOT_FOUND = 3201,
        /// <summary>分片合并异常</summary>
        [Description("分片合并失败")]
        CHUNK_COMBINE_FAIL = 3202,
        /// <summary>分片小于最小限制</summary>
        [Description("分片大小过小")]
        PART_TOO_SMALL = 3203,
        /// <summary>分片数量不匹配</summary>
        [Description("分片数量不匹配")]
        PART_COUNT_MISMATCH = 3204,
        /// <summary>上传会话已过期</summary>
        [Description("上传会话已过期")]
        UPLOAD_SESSION_EXPIRED = 3205,
        /// <summary>分片号超出范围</summary>
        [Description("分片号无效")]
        INVALID_PART_NUMBER = 3206
    }
}