<UserControl x:Class="Tango.MachineStudio.UI.Views.ResolvedIssuesView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:mahapps="http://metro.mahapps.com/winfx/xaml/controls"
             xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:autoComplete="clr-namespace:Tango.AutoComplete.Editors;assembly=Tango.AutoComplete"
             xmlns:integration="clr-namespace:Tango.Integration.ExternalBridge;assembly=Tango.Integration"
             xmlns:converters="clr-namespace:Tango.SharedUI.Converters;assembly=Tango.SharedUI"
             xmlns:vm="clr-namespace:Tango.MachineStudio.UI.ViewModels"
             xmlns:tfs="clr-namespace:Tango.TFS;assembly=Tango.TFS"
             xmlns:tfss="clr-namespace:Tango.MachineStudio.UI.TFS"
             xmlns:local="clr-namespace:Tango.MachineStudio.UI.Views"
             mc:Ignorable="d" Width="530" Height="580" Background="{StaticResource MainWindow.Background}" d:DataContext="{d:DesignInstance Type=vm:ResolvedIssuesViewVM, IsDesignTimeCreatable=False}" Foreground="{StaticResource MainWindow.Foreground}">
    <Grid>
        <Grid IsEnabled="{Binding IsAvailable}">
            <Grid.RowDefinitions>
                <RowDefinition Height="130"/>
                <RowDefinition Height="1*"/>
                <RowDefinition Height="200"/>
            </Grid.RowDefinitions>

            <Grid>
                <StackPanel Margin="10">
                    <StackPanel Orientation="Horizontal">
                        <Image Source="/Images/bug-resolved.png" Width="48" RenderOptions.BitmapScalingMode="Fant"></Image>
                        <TextBlock VerticalAlignment="Center" Margin="10 0 0 0" FontSize="20">Resolved Issues</TextBlock>
                    </StackPanel>

                    <TextBlock HorizontalAlignment="Left" Margin="10" TextWrapping="Wrap">
                        Below you can find issues reported by you that have been flagged as resolved by the development team.
                        Please verify each one and report back by pressing 'FIXED' or 'NOT FIXED'.
                    </TextBlock>
                </StackPanel>
            </Grid>

            <Grid Grid.Row="1">
                <ListBox x:Name="list" ItemsSource="{Binding TFSClient.ResolvedWorkItems}" HorizontalContentAlignment="Stretch">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <Border BorderBrush="{StaticResource WhiteBrush100}" BorderThickness="0 0 0 1" Padding="5">
                                <DockPanel>
                                    <StackPanel DockPanel.Dock="Right" HorizontalAlignment="Right" Orientation="Horizontal">
                                        <Button Background="{StaticResource RedBrush400}" BorderBrush="{StaticResource RedBrush400}" Padding="0" Width="90" Command="{Binding RelativeSource={RelativeSource AncestorType=UserControl},Path=DataContext.DeclineCommand}" CommandParameter="{Binding}">
                                            <StackPanel Orientation="Horizontal">
                     
using Google.Protobuf;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Tango.BL;
using Tango.BL.Entities;
using Tango.BL.Enumerations;
using Tango.Core;
using Tango.Integration.ExternalBridge;
using Tango.Logging;
using Tango.MachineStudio.Common.Authentication;
using Tango.MachineStudio.Common.Diagnostics;
using Tango.MachineStudio.Common.StudioApplication;
using Tango.PMR.Diagnostics;
using Tango.Integration.Operation;
using Tango.Core.ExtensionMethods;
using Tango.Transport;

namespace Tango.MachineStudio.Common.EventLogging
{
    /// <summary>
    /// Represents the default database events logger.
    /// </summary>
    /// <seealso cref="IEventLogger" />
    public class DefaultEventLogger : ExtendedObject, IEventLogger
    {
        private ObservablesContext _db;
        private static object _lockInit = new object();
        private Thread _logThread;
        private ConcurrentQueue<MachinesEvent> _events;
        private IStudioApplicationManager _application;
        private IAuthenticationProvider _authentication;
        private Dictionary<EventTypes, BL.Entities.EventType> _eventTypesGuids;
        private String _hostName;
        private bool _isInitialized;
        private List<MachinesEvent> _pendingEvents;

        #region Events

        /// <summary>
        /// Occurs when a new machine event has been logged.
        /// </summary>
        public event EventHandler<MachinesEvent> NewLog;

        #endregion

        #region Properties

        /// <summary>
        /// Gets or sets a value indicating whether to save the incoming events to database.
        /// </summary>
        public bool SaveToDB { get; set; }

        #endregion

        #region Constructors

        /// <summary>
        /// Initializes a new instance of the <see cref="DefaultEventLogger"/> class.
        /// </summary>
        /// <param name="applicationManager">The application manager.</param>
        /// <param name="authenticationProvider">The authentication provider.</param>
        public DefaultEventLogger(IStudioApplicationManager applicationManager, IAuthenticationProvider authenticationProvider)
        {
            _hostName = Environment.MachineName;

            SaveToDB = true;

            _events = new ConcurrentQueue<MachinesEvent>();
            _pendingEvents = new List<MachinesEvent>();

            _eventTypesGuids = new Dictionary<EventTypes, BL.Entities.EventType>();

            _application = applicationManager;
            _authentication = authenticationProvider;
            _logThread = new Thread(LogThreadMethod);
            _logThread.IsBackground = true;
            _logThread.Start();

            _application.ConnectedMachineChanged += _application_ConnectedMachineChanged;
        }

        #endregion

        #region Private Methods

        private void Init()
        {
            lock (_lockInit)
            {
                if (!_isInitialized)
                {
                    try
                    {
                        _db = ObservablesContext.CreateDefault();

                        _db.EventTypes.ToList();

                        foreach (var type in _db.EventTypes)
                        {
                            _eventTypesGuids.Add((EventTypes)type.Code, type);
                        }

                        _isInitialized = true;
                    }
                    catch
                    {
                        _isInitialized = false;
                    }
                }
            }
        }

        #endregion

        #region Event Handlers

        /// <summary>
        /// Handle the application manager connected machine changed event.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="machine">The machine.</param>
        private void _application_ConnectedMachineChanged(object sender, IExternalBridgeClient machine)
        {
            if (machine != null)
            {
                if (machine.MachineEventsStateProvider != null)
                {
                    machine.MachineEventsStateProvider.NewEvents -= MachineEventsStateProvider_NewEvents;
                    machine.MachineEventsStateProvider.NewEvents += MachineEventsStateProvider_NewEvents;
                    machine.MachineEventsStateProvider.EventsResolved -= MachineEventsStateProvider_EventsResolved;
                    machine.MachineEventsStateProvider.EventsResolved += MachineEventsStateProvider_EventsResolved;
                }

                machine.RequestSent -= Machine_RequestSent;
                machine.RequestFailed -= Machine_RequestFailed;
                machine.ResponseReceived -= Machine_ResponseReceived;

                machine.RequestSent += Machine_RequestSent;
                machine.RequestFailed += Machine_RequestFailed;
                machine.ResponseReceived += Machine_ResponseReceived;

                SaveToDB = !(machine is IExternalBridgeSecureClient);
            }
        }

        /// <summary>
        /// Handles the RequestSent event of the connected machine.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="message">The message.</param>
        private void Machine_RequestSent(object sender, IMessage message)
        {
            //Log(EventTypes.REQUEST_SENT, String.Format("Sending request '{0}'...{1}{2}", message.GetType().Name, Environment.NewLine, message.ToJsonString()));
        }

        /// <summary>
        /// Handles the RequestFailed event of the connected machine.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="RequestFailedEventArgs"/> instance containing the event data.</param>
        private void Machine_RequestFailed(object sender, RequestFailedEventArgs e)
        {
            //Log(EventTypes.REQUEST_FAILED, String.Format("Request failed '{0}'...{1}{2}{1}{3}", e.Message.GetType().Name, Environment.NewLine, e.Message.ToJsonString(), e.Exception.ToString()));
        }

        /// <summary>
        /// Handles the ResponseReceived event of the connected machine.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="message">The message.</param>
        private void Machine_ResponseReceived(object sender, IMessage message)
        {
            //Log(EventTypes.RESPONSE_RECEIVED, String.Format("Response received '{0}'...{1}{2}", message.GetType().Name, Environment.NewLine, message.ToJsonString()));
        }

        /// <summary>
        /// Handles the connected machine events state provider NewEvents event.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="events">The events.</param>
        private void MachineEventsStateProvider_NewEvents(object sender, IEnumerable<MachinesEvent> events)
        {
            foreach (var ev in events)
            {
                Log(ev);
            }
        }

        /// <summary>
        /// Handles the connected machine events state provider EventsResolved event.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="events">The events.</param>
        private void MachineEventsStateProvider_EventsResolved(object sender, IEnumerable<MachinesEvent> events)
        {
            //foreach (var ev in events)
            //{
            //    Log(String.Format("Event '{0}' resolved.", ev.EventType.Name));
            //}
        }

        #endregion

        #region Logging

        /// <summary>
        /// Logs the specified machine event.
        /// </summary>
        /// <param name="machineEvent">The machine event.</param>
        public void Log(MachinesEvent machineEvent)
        {
            Init();

            machineEvent.HostName = _hostName;
            machineEvent.EventType = _eventTypesGuids[machineEvent.Type];

            if (_application.ConnectedMachine == null || _authentication.CurrentUser == null)
            {
                _pendingEvents.Add(machineEvent);
            }
            else
            {
                lock (_pendingEvents)
                {
                    if (_pendingEvents.Count > 0)
                    {
                        var pending = _pendingEvents.ToList();
                        _pendingEvents.Clear();

                        foreach (var ev in pending)
                        {
                            Log(ev);
                        }
                    }
                }

                LogManager.Log("Logging event " + machineEvent.EventType.Name);
                machineEvent.MachineGuid = _application.Machine.Guid;
                machineEvent.UserGuid = _authentication.CurrentUser.Guid;
                machineEvent.User = _authentication.CurrentUser;
                _events.Enqueue(machineEvent);
                NewLog?.Invoke(this, machineEvent);
            }
        }

        /// <summary>
        /// Logs the specified event type.
        /// </summary>
        /// <param name="eventType">Type of the event.</param>
        /// <param name="message">The message.</param>
        public void Log(EventTypes eventType, string message, bool write_to_db = true)
        {
            Init();

            MachinesEvent machineEvent = new MachinesEvent();
            machineEvent.DateTime = DateTime.UtcNow;
            machineEvent.Description = message;
            machineEvent.EventType = _eventTypesGuids[eventType];
            machineEvent.EventTypeGuid = machineEvent.EventType.Guid;

            if (write_to_db && SaveToDB)
            {
                Log(machineEvent);
            }
            else
            {
                NewLog?.Invoke(this, machineEvent);
            }
        }

        /// <summary>
        /// Logs the specified hardware event.
        /// </summary>
        /// <param name="hardwareEvent">The hardware event.</param>
        public void Log(Event hardwareEvent)
        {
            Log((EventTypes)hardwareEvent.Type, hardwareEvent.Message);
        }

        /// <summary>
        /// Logs the specified exception using the <see cref="EventTypes.ApplicationException"/>.
        /// </summary>
        /// <param name="exception">The exception.</param>
        public void Log(Exception exception)
        {
            Log(EventTypes.APPLICATION_EXCEPTION, exception.ToString());
        }

        /// <summary>
        /// Logs the specified exception using the <see cref="EventTypes.ApplicationException" />.
        /// </summary>
        /// <param name="exception">The exception.</param>
        /// <param name="description"></param>
        public void Log(Exception exception, string description)
        {
            Log(EventTypes.APPLICATION_EXCEPTION, description + Environment.NewLine + exception.ToString());
        }

        /// <summary>
        /// Logs the specified message using the <see cref="EventTypes.ApplicationInformation"/>.
        /// </summary>
        /// <param name="message">The message.</param>
        public void Log(String message)
        {
            Log(EventTypes.APPLICATION_INFORMATION, message);
        }

        /// <summary>
        /// Logging thread loop.
        /// </summary>
        private void LogThreadMethod()
        {
            while (true)
            {
                FlushAll();
                Thread.Sleep(5000);
            }
        }

        /// <summary>
        /// Immediately saves all pending events to database.
        /// </summary>
        public void FlushAll()
        {
            if (!SaveToDB)
            {
                return;
            }

            bool _saveChanges = false;

            while (_events.Count > 0)
            {
                MachinesEvent ev = null;

                if (_events.TryDequeue(out ev))
                {
                    ev.User = null;
                    _db.MachinesEvents.Add(ev);
                    _saveChanges = true;
                }
            }

            if (_saveChanges)
            {
                try
                {
                    _db.SaveChanges();
                }
                catch (Exception ex)
                {
                    LogManager.Log(ex, "Error saving machine event to database.");
                }
            }
        }

        #endregion
    }
}