using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Forms;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Tango.Scripting.Editors;

namespace Tango.Scripting.Test
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindowpre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Tango.Core.Helpers;
using Tango.MachineStudio.Common.StudioApplication;
using Tango.MachineStudio.Common.Navigation;
using System.Reflection;
using System.Collections;
using Tango.Core;
using Tango.Logging;
using Tango.MachineStudio.Common.Modules;
using Tango.MachineStudio.Common;
using Tango.Settings;
using System.Windows;
using Tango.Integration.Services;
using Tango.MachineStudio.Common.EventLogging;
using Tango.BL.Enumerations;
using Tango.Core.DI;

namespace Tango.MachineStudio.UI.StudioApplication
{
    /// <summary>
    /// Represents the default Machine Studio <see cref="IStudioApplicationManager">Application Manager</see>.
    /// </summary>
    /// <seealso cref="Tango.Core.ExtendedObject" />
    /// <seealso cref="Tango.MachineStudio.Common.StudioApplication.IStudioApplicationManager" />
    public class DefaultStudioApplicationManager : ExtendedObject, IStudioApplicationManager
    {
        private INavigationManager _navigationManager;
        private IStudioModuleLoader _moduleLoader;
        private List<Window> _openedWindows;

        /// <summary>
        /// Initializes a new instance of the <see cref="DefaultStudioApplicationManager" /> class.
        /// </summary>
        /// <param name="navigationManager">The navigation manager.</param>
        public DefaultStudioApplicationManager(INavigationManager navigationManager, IStudioModuleLoader moduleLoader)
        {
            _moduleLoader = moduleLoader;
            _navigationManager = navigationManager;
            _openedWindows = new List<Window>();

            Task.Factory.StartNew(() => 
            {
                while (MainWindow.Instance == null)
                {
                    Thread.Sleep(100);
                }

                InvokeUI(() => 
                {
                    MainWindow.Instance.ContentRendered += (_, __) =>
                    {
                        TangoIOC.Default.GetAllInstancesByBase<IStudioViewModel>().ToList().ForEach(x => x.OnApplicationStarted());
                    };
                });
            });
        }

        /// <summary>
        /// Gets a value indicating whether Machine Studio is shutting down.
        /// </summary>
        public bool IsShuttingDown { get; private set; }

        /// <summary>
        /// The connected machine
        /// </summary>
        private IExternalBridgeClient _connectedMachine;

        /// <summary>
        /// Occurs when the connected machine property has changed.
        /// </summary>
        public event EventHandler<IExternalBridgeClient> ConnectedMachineChanged;

        /// <summary>
        /// Gets or sets the currently connected machine if any.
        /// </summary>
        public IExternalBridgeClient ConnectedMachine
        {
            get { return _connectedMachine; }
            set
            {
                _connectedMachine = value;
                RaisePropertyChangedAuto();
                RaisePropertyChanged(nameof(IsMachineConnected));
                RaisePropertyChanged(nameof(IsMachineConnectedViaTCP));

                if (_connectedMachine != null)
                {
                    _connectedMachine.StateChanged -= ConnectedMachine_StateChanged;
                    _connectedMachine.StateChanged += ConnectedMachine_StateChanged;
                }

                ConnectedMachineChanged?.Invoke(this, _connectedMachine);
            }
        }

        /// <summary>
        /// Gets a value indicating whether the <see cref="P:Tango.MachineStudio.Common.StudioApplication.IStudioApplicationManager.ConnectedMachine" /> is valid and connected through TCP/IP.
        /// </summary>
        public bool IsMachineConnectedViaTCP
        {
            get { return IsMachineConnected && ConnectedMachine is ExternalBridgeTcpClient; }
        }

        /// <summary>
        /// Handles the <see cref="ConnectedMachine"/> state changed event.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="e">The e.</param>
        private void ConnectedMachine_StateChanged(object sender, Transport.TransportComponentState e)
        {
            if (e == Transport.TransportComponentState.Disconnected || e == Transport.TransportComponentState.Failed)
            {
                ConnectedMachine = null;
            }

        }

        /// <summary>
        /// Gets a value indicating whether the <see cref="P:Tango.MachineStudio.Common.StudioApplication.IStudioApplicationManager.ConnectedMachine" /> is valid.
        /// </summary>
        public bool IsMachineConnected
        {
            get { return ConnectedMachine != null; }
        }

        /// <summary>
        /// Gets the machine studio application version.
        /// </summary>
        public string Version
        {
            get
            {
                return typeof(DefaultStudioApplicationManager).Assembly.GetName().Version.ToString();
            }
        }

        /// <summary>
        /// Shutdown the application.
        /// </summary>
        public async void ShutDown()
        {
            if (IsShuttingDown) return;

            IsShuttingDown = true;

            await Task.Factory.StartNew(async () =>
            {
                //Do Shutdown Procedures...
                foreach (var vm in TangoIOC.Default.GetAllInstancesByBase<IStudioViewModel>())
                {
                    try
                    {
                        var result = await vm.OnShutdownRequest();
                        if (!result)
                        {
                            IsShuttingDown = false;
                            return;
                        }
                    }
                    catch (Exception ex)
                    {
                        LogManager.Log(ex, "Error on shutdown request with " + vm.GetType().Name);
                    }
                }

                foreach (var vm in TangoIOC.Default.GetAllInstancesByBase<IStudioViewModel>())
                {
                    vm.OnShuttingDown();
                }

                try
                {
                    SettingsManager.Default.Save();
                }
                catch (Exception ex)
                {
                    LogManager.Log(ex, "Error saving settings.");
                }

                _navigationManager.NavigateTo(NavigationView.ShutdownView);

                Thread.Sleep(1500);

                foreach (var window in _openedWindows)
                {
                    ThreadsHelper.InvokeUI(() =>
                    {
                        window.Close();
                    });
                }

                try
                {
                    if (ConnectedMachine != null)
                    {
                        ConnectedMachine.Disconnect().Wait();
                    }
                }
                catch (Exception ex)
                {
                    LogManager.Log(ex, "Error disconnecting from machine.");
                }

                var eventLogger = TangoIOC.Default.GetInstance<IEventLogger>();
                if (eventLogger != null)
                {
                    eventLogger.Log(EventTypes.ApplicationTerminated, "Application Terminated!");
                    eventLogger.FlushAll();
                }

                Thread.Sleep(1500);

                Environment.Exit(0);

            });
        }

        /// <summary>
        /// Loads the specified module if permitted.
        /// </summary>
        /// <param name="moduleName">Name of the module.</param>
        /// <param name="args">The arguments.</param>
        public void RequestModule(string moduleName, params object[] args)
        {
            IStudioModule module = _moduleLoader.UserModules.SingleOrDefault(x => x.Name == moduleName);

            if (module != null)
            {
                TangoIOC.Default.GetInstance<ViewModels.MainViewVM>().StartModule(module);

                //Notify request listeners.
                foreach (var vm in TangoIOC.Default.GetAllInstancesByBase<IStudioViewModel>())
                {
                    vm.OnModuleRequest(module, args);
                }
            }
            else
            {
                throw new InvalidOperationException("The module was not found or you do not have sufficient privileges.");
            }
        }

        /// <summary>
        /// Notify the application manager about an external opened window.
        /// When application exists. All registered windows will be closed.
        /// </summary>
        /// <param name="window">The window.</param>
        public void RegisterOpenedWindow(Window window)
        {
            _openedWindows.Add(window);

            window.Closed += (x, y) => { _openedWindows.Remove(window); };
        }
    }
}