using ClientCore;
using ClientCore.Data;
using ClientCore.Enum;
using ClientCore.Event;
using ClientCore.Network;
using System.Diagnostics;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml.Linq;

namespace Client_GUI
{
    public partial class MainUI : Form
    {
        public delegate void DSetLogStr(List<string> value);
        public delegate void DSetStr(string value);
        public delegate void DSetBool(bool value);
        public delegate void DSetVoid();
        const int LogLimit = 200;
        const int ChatShowLimit = 200;

        long mCurrUID = 0;

        public MainUI()
        {
            InitializeComponent();
        }

        private void MainUI_Load(object sender, EventArgs e)
        {
            //注册事件
            EventSystem.Instance.RegisterEvent(EEvent.UserLogin, OnUserLogin);
            EventSystem.Instance.RegisterEvent(EEvent.TcpTunnelHelloResp, OnTcpTunnelHelloResp);
            EventSystem.Instance.RegisterEvent<long>(EEvent.TcpTunnelP2PStateUpdate, OnTcpTunnelP2PStateUpdate);
            EventSystem.Instance.RegisterEvent<long, string>(EEvent.UserJoin, OnUserJoin);
            EventSystem.Instance.RegisterEvent<long, string>(EEvent.UserLeave, OnUserLeave);
            EventSystem.Instance.RegisterEvent<string, string>(EEvent.OnChatMsg, OnChatMsg);
            EventSystem.Instance.RegisterEvent<long, string>(EEvent.OnP2PChatMsg, OnP2PChatMsg);

            EventSystem.Instance.RegisterEvent<int>(EEvent.OnFileConfirmChoice, OnFileConfirmChoice);

            //EventSystem.Instance.RegisterEvent<long>(EEvent.OnFilePushStart, );
            //EventSystem.Instance.RegisterEvent<long>(EEvent.OnFilePushEnd, );

            System.Timers.Timer bTimer = new System.Timers.Timer();
            bTimer.Elapsed += new System.Timers.ElapsedEventHandler(TimeEvent_Log);
            // 设置引发时间的时间间隔 此处设置为１秒（１０００毫秒）
            bTimer.Interval = 500;
            bTimer.Enabled = true;

            App.Init("127.0.0.1", 23846, 23847, OnNetLog);
            //App.Init("main.axibug.com", 23846, 23847, OnNetLog);
            if (App.Connect())
            {
                App.login.Login(StaticComm.LoginName);
            }
            UpdateP2PTargetState();
        }

        #region

        void OnNetLog(int LogLevel, string msg)
        {
            AddLog(msg);
        }

        void OnUserLogin()
        {
            AddLog($"[User]登录成功");
            App.userMgr.Send_GetUserList();
            App.clientMgr.ConnectTcpTunnelServer();
        }
        void OnTcpTunnelHelloResp()
        {
            AddLog($"[TcpTunnel]OnTcpTunnelHelloResp");
        }
        void OnTcpTunnelP2PStateUpdate(long UID)
        {
            AddLog($"[TcpTunnel]OnTcpTunnelP2PStateUpdate");
            if (UID == mCurrUID)
            {
                UpdateP2PTargetState();
            }
            else
            {
                mCurrUID = UID;
                UpdateP2PTargetState();
            }
        }
        void OnUserJoin(long UID, string NickName)
        {
            AddLog($"[User]用户{NickName}上线");
            AddChat($"[{NickName}]上线");
            UpdateOnlineUser();
        }
        void OnUserLeave(long UID, string NickName)
        {
            AddLog($"[User]用户{UID}下线");
            AddChat($"[{NickName}]离开");
            UpdateOnlineUser();
        }
        void OnChatMsg(string str1, string str2)
        {
            AddLog($"[Chat]{str1}:{str2}");
            AddChat($"[{str1}]:   {str2}");
        }
        void OnP2PChatMsg(long uid, string str2)
        {
            AddLog($"[P2PChatMsg]{uid}:{str2}");
        }
        void OnFileConfirmChoice(int TaskID)
        {
            DialogResult MsgBoxResult;//设置对话框的返回值
            MsgBoxResult = System.Windows.Forms.MessageBox.Show("是否接受文件？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button2);//定义对话框的按钮式样
            if (MsgBoxResult.ToString() == "Yes")//如果对话框的返回值是YES（按"Y"按钮）
            {
                //选择了Yes，继续
                App.p2pFile.receiver_AgreeRecvFile(TaskID, 1);
            }
            if (MsgBoxResult.ToString() == "No")//如果对话框的返回值是NO（按"N"按钮）
            {
                //选择了No
                App.p2pFile.receiver_AgreeRecvFile(TaskID, 0);
            }
        }
        void OnFilePushStart(long TaskID)
        {
            AddLog($"[P2PFile]文件传输开始");
        }

        #endregion

        #region 委托操作界面

        #endregion

        void AddChat(string str)
        {
            this.BeginInvoke(new DSetStr(AddChat_delegate), str);
        }

        void AddChat_delegate(string str)
        {
            this.listBox_AllChatMsg.Items.Add(str);
            while (listbox_log.Items.Count > ChatShowLimit)
            {
                listbox_log.Items.RemoveAt(listbox_log.Items.Count - ChatShowLimit);
            }
        }

        void UpdateOnlineUser()
        {
            this.BeginInvoke(new DSetVoid(UpdateOnlineUser_delegate));
        }

        Dictionary<long, long> DictUserShowIdx2UID = new Dictionary<long, long>();
        void UpdateOnlineUser_delegate()
        {
            DictUserShowIdx2UID.Clear();
            UserInfo[] ulist = App.userMgr.GetUserInfo();
            Console.WriteLine("User总数" + ulist.Length);
            this.listBox_OnlineUser.Items.Clear();
            for (int i = 0; i < ulist.Length; i++)
            {
                DictUserShowIdx2UID[i] = ulist[i].UID;
                this.listBox_OnlineUser.Items.Add(ulist[i].NickName);
            }
        }


        void UpdateP2PTargetState()
        {
            this.BeginInvoke(new DSetVoid(UpdateP2PTargetState_delegate));
        }

        void UpdateP2PTargetState_delegate()
        {
            bool bCanUse = false;
            string StateName = "";

            if (mCurrUID <= 0)
            {
                this.label_P2P_TargetUName.Text = "未选择";
            }
            else
            {
                App.clientMgr.GetP2PTargetState(mCurrUID, out E_P2P_STATE state);
                switch (state)
                {
                    case E_P2P_STATE.None:
                        StateName = "未连接";
                        break;
                    case E_P2P_STATE.Doing:
                        StateName = "打洞中……";
                        break;
                    case E_P2P_STATE.Fail:
                        StateName = "打洞失败";
                        break;
                    case E_P2P_STATE.Success:
                        StateName = "隧道已连通";
                        bCanUse = true;
                        break;
                }
            }

            this.label_P2P_State.Text = StateName;

            if (bCanUse)
            {
                btn_P2P_SendFile.Enabled = true;
                btn_P2P_ChangeSendFile.Enabled = true;
            }
            else
            {
                btn_P2P_SendFile.Enabled = false;
                btn_P2P_ChangeSendFile.Enabled = false;
            }
        }

        #region 日志


        static Queue<string> logQueue = new Queue<string>();
        public static void AddLog(string val)
        {
            logQueue.Enqueue($"{DateTime.Now.ToString("HH:mm:ss")}> {val}");
        }

        private void TimeEvent_Log(object source, System.Timers.ElapsedEventArgs e)
        {
            List<string> input = new List<string>();
            while (logQueue.Count > 0)
            {
                string str = logQueue.Dequeue();
                input.Add(str);
            }
            if (input.Count < 1)
                return;

            this.BeginInvoke(new DSetLogStr(ShowLog), input);
        }

        void ShowLog(List<string> value)
        {
            foreach (var v in value)
            {
                this.listbox_log.Items.Add(v);
            }
            while (listbox_log.Items.Count > LogLimit)
            {
                listbox_log.Items.RemoveAt(listbox_log.Items.Count - LogLimit);
            }
            //TODO 最下方
            //listbox_log.ScrollIntoView(listbox_log.Items[listbox_log.Items.Count - 1]);
        }
        #endregion

        private void btn_chatsend_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBox_chatsendmsg.Text))
                return;
            App.chat.SendChatMsg(textBox_chatsendmsg.Text);
            textBox_chatsendmsg.Text = string.Empty;
        }

        private void listBox_OnlineUser_DoubleClick(object sender, EventArgs e)
        {
            ListBox listBox = sender as ListBox;
            if (listBox == null)
                return;

            // 当ListBox有选中项时
            if (listBox.SelectedIndex <= -1)
                return;

            if (!DictUserShowIdx2UID.ContainsKey(listBox.SelectedIndex))
                return;


            long Uid = DictUserShowIdx2UID[listBox.SelectedIndex];

            if (Uid == App.userMgr.MainPlayer.UID)
            {
                MessageBox.Show("不能和自己建立P2P隧道");
                return;
            }

            if (mCurrUID == Uid)
                return;

            UserInfo uinfo = App.userMgr.GetUserByUid(Uid);

            //已有
            if (App.clientMgr.GetP2PTargetState(Uid, out E_P2P_STATE state))
            {
                mCurrUID = Uid;
                this.label_P2P_TargetUName.Text = uinfo.NickName;
                this.tabControl_Main.SelectedIndex = 1;
                UpdateP2PTargetState();
            }
            else
            {
                if (uinfo != null)
                {
                    mCurrUID = Uid;
                    this.label_P2P_TargetUName.Text = uinfo.NickName;
                    this.tabControl_Main.SelectedIndex = 1;
                    App.p2ptcp.SendDoTunnel(Convert.ToInt64(uinfo.UID));
                }
            }
        }

        private void btn_P2P_ChangeSendFile_Click(object sender, EventArgs e)
        {
            // 1. 打开文件管理器选择文件
            OpenFileDialog openFileDialog1 = new OpenFileDialog();  //显示选择文件对话框
            openFileDialog1.InitialDirectory = "c:\\";
            openFileDialog1.Filter = "All files (*.*)|*.*"; //所有的文件格式
            openFileDialog1.FilterIndex = 2;
            openFileDialog1.RestoreDirectory = true;

            // 2. 查看可执行文件路径
            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                this.label_P2P_SendFilePath.Text = openFileDialog1.FileName;
            }
        }

        private void btn_P2P_SendFile_Click(object sender, EventArgs e)
        {
            string filePath = this.label_P2P_SendFilePath.Text;
            if (string.IsNullOrEmpty(filePath))
            {
                MessageBox.Show("未选择文件");
                return;
            }

            if (!File.Exists(filePath))
            {
                MessageBox.Show("选择的文件不存在");
                return;
            }

            App.p2pFile.sender_FilePushConfirmToTarget(mCurrUID, filePath);
        }
    }
}