/* Generated by the protocol buffer compiler.  DO NOT EDIT! */
/* Generated from: MachineCalibrationDataResponse.proto */

/* Do not generate deprecated warnings for self */
#ifndef PROTOBUF_C__NO_DEPRECATED
#define PROTOBUF_C__NO_DEPRECATED
#endif

#include "MachineCalibrationDataResponse.pb-c.h"
void   machine_calibration_data_response__init
                     (MachineCalibrationDataResponse         *message)
{
  static const MachineCalibrationDataResponse init_value = MACHINE_CALIBRATION_DATA_RESPONSE__INIT;
  *message = init_value;
}
size_t machine_calibration_data_response__get_packed_size
                     (const MachineCalibrationDataResponse *message)
{
  assert(message->base.descriptor == &machine_calibration_data_response__descriptor);
  return protobuf_c_message_get_packed_size ((const ProtobufCMessage*)(message));
}
size_t machine_calibration_data_response__pack
                     (const MachineCalibrationDataResponse *message,
                      uint8_t       *out)
{
  assert(message->base.descriptor == &machine_calibration_data_response__descriptor);
  return protobuf_c_message_pack ((const ProtobufCMessage*)message, out);
}
size_t machine_calibration_data_response__pack_to_buffer
                     (const MachineCalibrationDataResponse *message,
                      ProtobufCBuffer *buffer)
{
  assert(message->base.descriptor == &machine_calibration_data_response__descriptor);
  return protobuf_c_message_pack_to_buffer ((const 
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media;
using Tango.PPC.Common.Notifications;
using Tango.Core;
using System.Collections.Concurrent;
using System.Windows.Media.Imaging;
using Tango.SharedUI.Helpers;
using System.Timers;
using Tango.Core.Commands;
using Tango.Touch.Controls;
using Tango.SharedUI;
using System.Reflection;
using Tango.Core.DI;

namespace Tango.PPC.UI.Notifications
{
    /// <summary>
    /// Represents the default PPC notification provider.
    /// </summary>
    /// <seealso cref="Tango.Core.ExtendedObject" />
    /// <seealso cref="Tango.PPC.Common.Notifications.INotificationProvider" />
    public class DefaultNotificationProvider : ExtendedObject, INotificationProvider
    {
        /// <summary>
        /// Gets the collection of notification items.
        /// </summary>
        public ObservableCollection<NotificationItem> NotificationItems { get; private set; }

        private ConcurrentQueue<PendingNotification<MessageBoxVM, bool>> _pendingMessageBoxes;
        private ConcurrentQueue<PendingNotification<DialogAndView, DialogViewVM>> _pendingDialogs;

        /// <summary>
        /// Initializes a new instance of the <see cref="DefaultNotificationProvider"/> class.
        /// </summary>
        public DefaultNotificationProvider()
        {
            NotificationItems = new ObservableCollection<NotificationItem>();
            _pendingMessageBoxes = new ConcurrentQueue<PendingNotification<MessageBoxVM, bool>>();
            _pendingDialogs = new ConcurrentQueue<PendingNotification<DialogAndView, DialogViewVM>>();

            PopNotificationCommand = new RelayCommand<NotificationItem>((x) => PopNotification(x));
        }

        private MessageBoxVM _currentMessageBox;
        /// <summary>
        /// Gets the current message box if any.
        /// </summary>
        public MessageBoxVM CurrentMessageBox
        {
            get { return _currentMessageBox; }
            private set
            {
                _currentMessageBox = value;
                RaisePropertyChangedAuto();
                RaisePropertyChanged(nameof(HasMessageBox));
            }
        }

        /// <summary>
        /// Gets a value indicating whether a message box is available.
        /// </summary>
        public bool HasMessageBox
        {
            get
            {
                return CurrentMessageBox != null;
            }
        }

        private FrameworkElement _currentDialog;
        /// <summary>
        /// Gets the current dialog if any.
        /// </summary>
        public FrameworkElement CurrentDialog
        {
            get { return _currentDialog; }
            private set
            {
                _currentDialog = value;
                RaisePropertyChangedAuto();
                RaisePropertyChanged(nameof(HasDialog));
            }
        }

        /// <summary>
        /// Gets a value indicating whether a dialog is available.
        /// </summary>
        public bool HasDialog
        {
            get
            {
                return CurrentDialog != null;
            }
        }

        /// <summary>
        /// Shows an error message box.
        /// </summary>
        /// <param name="message">The message.</param>
        /// <returns></returns>
        public Task ShowError(string message)
        {
            return ShowMessageBox(new MessageBoxVM()
            {
                Message = message,
                Icon = ResourceHelper.GetImageFromResources("Images/MessageBox Icons/information.png"),
                Title = "Error",
                Brush = Application.Current.Resources["TangoMessageBoxErrorBrush"] as Brush,
            });
        }

        /// <summary>
        /// Shows an information message box.
        /// </summary>
        /// <param name="message">The message.</param>
        /// <returns></returns>
        public Task ShowInfo(string message)
        {
            return ShowMessageBox(new MessageBoxVM()
            {
                Message = message,
                Icon = ResourceHelper.GetImageFromResources("Images/MessageBox Icons/information.png"),
                Title = "Information",
                Brush = Application.Current.Resources["TangoMessageBoxInfoBrush"] as Brush,
            });
        }

        /// <summary>
        /// Shows warning message box.
        /// </summary>
        /// <param name="message">The message.</param>
        /// <returns></returns>
        public Task ShowWarning(string message)
        {
            return ShowMessageBox(new MessageBoxVM()
            {
                Message = message,
                Icon = ResourceHelper.GetImageFromResources("Images/MessageBox Icons/information.png"),
                Title = "Warning",
                Brush = Application.Current.Resources["TangoMessageBoxWarningBrush"] as Brush,
            });
        }

        /// <summary>
        /// Shows a question message box.
        /// </summary>
        /// <param name="message">The message.</param>
        /// <returns></returns>
        public Task<bool> ShowQuestion(string message)
        {
            return ShowMessageBox(new MessageBoxVM()
            {
                Message = message,
                Icon = ResourceHelper.GetImageFromResources("Images/MessageBox Icons/information.png"),
                Title = "Confirm",
                HasCancel = true,
                Brush = Application.Current.Resources["TangoMessageBoxQuestionBrush"] as Brush,
            });
        }

        /// <summary>
        /// Shows the message box.
        /// </summary>
        /// <param name="vm">The view model.</param>
        /// <returns></returns>
        private Task<bool> ShowMessageBox(MessageBoxVM vm)
        {
            TaskCompletionSource<bool> source = new TaskCompletionSource<bool>();

            vm.Accepted += () => { OnMessageBoxClosed(); source.SetResult(true); };
            vm.Canceled += () => { OnMessageBoxClosed(); source.SetResult(false); };

            if (CurrentMessageBox == null)
            {
                CurrentMessageBox = vm;
            }
            else
            {
                _pendingMessageBoxes.Enqueue(new PendingNotification<MessageBoxVM, bool>(vm, source));
            }

            return source.Task;
        }

        /// <summary>
        /// Called when the message box has been closed.
        /// </summary>
        private void OnMessageBoxClosed()
        {
            CurrentMessageBox = null;

            if (_pendingMessageBoxes.Count > 0)
            {
                PendingNotification<MessageBoxVM, bool> p = null;
                if (_pendingMessageBoxes.TryDequeue(out p))
                {
                    CurrentMessageBox = p.Item;
                }
            }
        }

        /// <summary>
        /// Inserts the notification item to the bottom of the notifications collection.
        /// </summary>
        /// <param name="item">The item.</param>
        /// <returns></returns>
        public NotificationItem PushNotification(NotificationItem item)
        {
            return PushNotification(item, null, false, null);
        }

        /// <summary>
        /// Inserts the notification item to the bottom of the notifications collection.
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="condition">A condition which determines if this item is still relevant.</param>
        /// <param name="autoCheck">Determines whether to perform automatic checking of the condition.</param>
        /// <param name="checkInterval">Determines how frequently the condition function will be invoked. (Default 1 second)</param>
        /// <returns></returns>
        public NotificationItem PushNotification(NotificationItem item, Func<bool> condition, bool autoCheck = true, TimeSpan? checkInterval = default(TimeSpan?))
        {
            item.Condition = condition;
            item.AutoCheck = autoCheck;
            item.AutoCheckInterval = checkInterval != null ? checkInterval.Value : TimeSpan.FromSeconds(1);
            item.RemoveAction = () => { PopNotification(item); };
            NotificationItems.Insert(0, item);

            if (autoCheck && condition != null)
            {
                Timer timer = new Timer();
                item.Timer = timer;
                timer.Interval = item.AutoCheckInterval.TotalMilliseconds;
                timer.Elapsed += (x, y) =>
                {
                    if (!item.Condition())
                    {
                        PopNotification(item);
                    }
                };
                timer.Start();
            }

            RaisePropertyChanged(nameof(HasNotificationItems));

            return item;
        }

        /// <summary>
        /// Removed the specified notification item.
        /// </summary>
        /// <param name="item">The item.</param>
        public void PopNotification(NotificationItem item)
        {
            if (item.Timer != null)
            {
                item.Timer.Stop();
            }

            NotificationItems.Remove(item);

            RaisePropertyChanged(nameof(HasNotificationItems));
        }

        /// <summary>
        /// Invokes the notification items conditions.
        /// </summary>
        public void InvokeNotificationItemsConditions()
        {
            var list = NotificationItems.ToList();

            foreach (var item in list.Where(x => x.Condition != null))
            {
                if (!item.Condition())
                {
                    PopNotification(item);
                }
            }
        }

        /// <summary>
        /// Gets a value indicating whether this instance has notification items.
        /// </summary>
        public bool HasNotificationItems
        {
            get
            {
                return NotificationItems.Count > 0;
            }
        }

        public RelayCommand<NotificationItem> PopNotificationCommand { get; private set; }

        /// <summary>
        /// Displays the specified dialog in a modal design.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="datacontext">The data context.</param>
        /// <param name="view">The view.</param>
        /// <returns></returns>
        public async Task<T> ShowDialog<T>(T datacontext, FrameworkElement view) where T : DialogViewVM
        {
            view.DataContext = datacontext;

            TangoIOC.Default.Inject(datacontext);

            view.Loaded += (_, __) => 
            {
                view.DataContext = datacontext;
                datacontext.OnShow();
            };

            TaskCompletionSource<DialogViewVM> source = new TaskCompletionSource<DialogViewVM>();

            datacontext.Accepted += () => { OnDialogClosed(); source.SetResult(datacontext); };
            datacontext.Canceled += () => { OnDialogClosed(); source.SetResult(datacontext); };

            if (CurrentDialog == null)
            {
                CurrentDialog = view;
            }
            else
            {
                _pendingDialogs.Enqueue(new PendingNotification<DialogAndView, DialogViewVM>(new DialogAndView(datacontext, view), source));
            }

            var result = await source.Task;
            return result as T;
        }

        private void OnDialogClosed()
        {
            CurrentDialog = null;

            if (_pendingDialogs.Count > 0)
            {
                PendingNotification<DialogAndView, DialogViewVM> p = null;
                if (_pendingDialogs.TryDequeue(out p))
                {
                    CurrentDialog = p.Item.View;
                }
            }
        }

        /// <summary>
        /// Displays the specified dialog in a modal design.
        /// The notification provider will try to locate the view automatically using conventions.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="datacontext">The data context.</param>
        /// <returns></returns>
        public Task<T> ShowDialog<T>(T datacontext) where T : DialogViewVM
        {
            var callingAssembly = datacontext.GetType().Assembly;
            String viewName = datacontext.GetType().FullName.Replace("VM", "");
            var viewType = callingAssembly.GetType(viewName);

            if (viewType == null)
            {
                throw new NullReferenceException("View type for " + datacontext.GetType().Name + " could not be found!");
            }

            var view = Activator.CreateInstance(viewType) as FrameworkElement;

            if (view == null)
            {
                throw new NullReferenceException("The view " + viewType.ToString() + " is not of type framework element.");
            }

            return ShowDialog<T>(datacontext, Activator.CreateInstance(viewType) as FrameworkElement);
        }

        /// <summary>
        /// Displays the specified dialog in a modal design.
        /// The data context instance will be automatically created.
        /// The notification provider will try to locate the view automatically using conventions.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns></returns>
        public Task<T> ShowDialog<T>() where T : DialogViewVM
        {
            return ShowDialog<T>(Activator.CreateInstance<T>());
        }

        /// <summary>
        /// Sets the global busy message.
        /// </summary>
        /// <param name="message">The message.</param>
        public void SetGlobalBusyMessage(string message)
        {
            GlobalBusyMessage = message;
            IsInGlobalBusyState = true;

            RaisePropertyChanged(nameof(IsInGlobalBusyState));
            RaisePropertyChanged(nameof(GlobalBusyMessage));
        }

        /// <summary>
        /// Releases the global busy message.
        /// </summary>
        public void ReleaseGlobalBusyMessage()
        {
            GlobalBusyMessage = null;
            IsInGlobalBusyState = false;

            RaisePropertyChanged(nameof(IsInGlobalBusyState));
            RaisePropertyChanged(nameof(GlobalBusyMessage));
        }

        /// <summary>
        /// Gets the current global busy message.
        /// </summary>
        public string GlobalBusyMessage { get; private set; }

        /// <summary>
        /// Gets a value indicating whether this instance is in global busy state.
        /// </summary>
        public bool IsInGlobalBusyState { get; private set; }
    }
}