using Step.Model;
using Step.Model.DTOModels;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.IO;
using System.Threading;
using System.Windows.Forms;
using TeamDev.SDK.MVVM;
using static Step.Config.ServerConfig;
using static Step.Model.Constants;

namespace Step.UI
{
    public partial class ServerControlWindow : MetroFramework.Forms.MetroForm
    {
        private bool ncStatus = false;
        private bool isUpdatingThreads = false;
        private List<RegistrationInfo> MVVMListeners;

        public ServerControlWindow()
        {
            InitializeComponent();

            //Begin the update
            LISTThreadStatus.BeginUpdate();
            //clear the List
            LISTThreadStatus.Items.Clear();
            //Add all items
            LISTThreadStatus.Items.Add(new ListViewItem(new string[] { "TryNcConnection", "---" }));
            //End the update
            LISTThreadStatus.EndUpdate();

            TXTType.Text = NcConfig.NcVendor;

            InitializeMessageListeners();

            MessageServices.Current.Subscribe(SHOW_MSG_UI, (a, b) =>
            {
                Invoke((MethodInvoker)delegate () { Focus(); MessageBox.Show(a.ToString()); });
            });

        }

        private static ServerControlWindow ctrlwindow = null;

        public static void Start()
        {   // Open WinForm
            Thread th = new Thread(() =>
            {
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                ctrlwindow = new ServerControlWindow();
                Application.Run(ctrlwindow);
            });

            th.SetApartmentState(ApartmentState.STA);
            th.Start();
        }

        public static void Stop()
        {   // Close WinForm
            if (ctrlwindow != null)
            {
                ctrlwindow.Invoke((ThreadStart)delegate ()
                {
                    ctrlwindow._closing = true;
                    ctrlwindow.Close();
                    ctrlwindow = null;
                });
            }
        }

        private bool _closing = false;

        // Avoid closing the window
        protected override void OnClosing(CancelEventArgs e)
        {
            if (!_closing)
            {
                e.Cancel = true;
                Hide();
            }
        }

        private void OpenUiButton_Click(object sender, EventArgs e)
        {
            //Open CMS Client
            StartCMSClient(null);
        }

        private void StopServerButton_Click(object sender, EventArgs e)
        {
            // Send message to listeners and close server
            MessageServices.Current.Publish(SEND_STOP_SERVER);
        }

        private void NotifyIcon_Click(object sender, EventArgs e)
        {
            this.Show();
            this.TopMost = true;
            this.TopMost = false;
        }

        private void StopServerItem_Click(object sender, EventArgs e)
        {
            //Unsubscrube MVVM threads
            foreach (RegistrationInfo Info in MVVMListeners)
                MessageServices.Current.UnSubscribe(Info);

            MessageServices.Current.Publish("StopServer");
        }

        public static void StartCMSClient(string url)
        {
            //Setup the Path Variable
            String CMSClientPath = "";
            if (ClientIsRunning())
                return;

            //Check if the system is 64/32 bit
            if (Environment.Is64BitOperatingSystem && File.Exists(BASE_PATH + @"\Client\x64\" + CLIENT_EXE_NAME))
                CMSClientPath = BASE_PATH + @"\Client\x64\" + CLIENT_EXE_NAME;
            else if (File.Exists(BASE_PATH + @"\Client\x86\" + CLIENT_EXE_NAME))
                CMSClientPath = BASE_PATH + @"\Client\x86\" + CLIENT_EXE_NAME;

            if (!String.IsNullOrEmpty(CMSClientPath))
                Process.Start(CMSClientPath, url);
            else
                MessageBox.Show("CMS-Active Client not found");
        }

        private void InitializeMessageListeners()
        {
            MVVMListeners = new List<RegistrationInfo>
            {
                MessageServices.Current.Subscribe(SEND_MESSAGE, (a, b) =>
                {
                // Cast object to ErrorMessageModel
                ErrorMessageModel message = (ErrorMessageModel)a;
                // If error has a fatal level, icon must be error
                message.ErrorLevel = message.ErrorLevel > (int)ERROR_LEVEL.ERROR ? (int)ERROR_LEVEL.ERROR : message.ErrorLevel;

                    if (!this.IsDisposed)
                        this.Invoke((MethodInvoker)delegate ()
                        {
                        // Open BalloonTip with data
                        StepNotifyIcon.ShowBalloonTip(1000, message.Title, message.Message, (ToolTipIcon)message.ErrorLevel);

                        //ShowMessage on UI
                        TXTstatus.Text = "[" + DateTime.Now.ToString("T") + "] " + message.Message;
                        });
                }),
                // NC status handler
                MessageServices.Current.Subscribe(SEND_NC_STATUS, (a, b) =>
                {
                    bool newNcStatus = (bool)a;

                    if (ncStatus != newNcStatus)
                    {
                        ncStatus = newNcStatus;
                        string title = "NC not connected";
                        string message = "Check NC connection";
                        ToolTipIcon toolTipIcon = ToolTipIcon.Error;

                        if (ncStatus)
                        {
                            title = "Nc connection established";
                            message = "Comunication started";
                            toolTipIcon = ToolTipIcon.Info;
                        }

                        if (!IsDisposed)
                            Invoke((MethodInvoker)delegate ()
                            {
                            // Show balloon with new status
                            StepNotifyIcon.ShowBalloonTip(1000, title, message, toolTipIcon);
                                TXTstatus.Text = "[" + DateTime.Now.ToString("T") + "] " + title;
                            });
                    }

                    if (ncStatus)
                        if (!IsDisposed)
                            Invoke((MethodInvoker)delegate ()
                            {
                                StepNotifyIcon.Icon = Properties.Resources.CMS_Icon;
                            });

                //Other type
                if (!IsDisposed)
                        Invoke((MethodInvoker)delegate ()
                        {
                            CHNcConnected.Checked = ncStatus;
                        });
                }),
                // Threads status handler
                MessageServices.Current.Subscribe(SEND_THREADS_STATUS, (a, b) =>
                {
                //Other type
                if (!IsDisposed)
                        Invoke((MethodInvoker)delegate ()
                        {
                            if (!isUpdatingThreads)
                            {
                                isUpdatingThreads = true;
                                Dictionary<String, String> Threads = new Dictionary<String, String>((Dictionary<String, String>)a);
                            //Begin the update
                            LISTThreadStatus.BeginUpdate();
                            //clear the List
                            LISTThreadStatus.Items.Clear();
                            //Add all items
                            foreach (KeyValuePair<string, String> Thr in Threads)
                                    LISTThreadStatus.Items.Add(new ListViewItem(new string[] { Thr.Key, Thr.Value }));
                            //End the update
                            LISTThreadStatus.EndUpdate();
                                isUpdatingThreads = false;
                            }
                        });
                })
            };
        }

        private static bool ClientIsRunning()
        {
            Process[] p = Process.GetProcessesByName(CLIENT_EXE_NAME_NOEXT);
            if (p.Length>0)
                return true;
            return false;
        }
    }
}