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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.PPC.Common;
using Tango.PPC.Common.Application;
using Tango.PPC.Common.FirmwareUpgrade;
using Tango.PPC.Common.Navigation;
using Tango.PPC.UI.ViewsContracts;
namespace Tango.PPC.UI.ViewModels
{
public class FirmwareUpgradeViewVM : PPCViewModel<IFirmwareUpgradeView>
{
public enum FirmUpgradeView
{
FirmwareProgressView,
FirmwareCompletedView,
FirmwareFailedView,
}
private IFirmwareUpgrader _firmwareUpgrader;
private String _status;
/// <summary>
/// Gets or sets the firmware upgrade status.
/// </summary>
public String Status
{
get { return _status; }
set { _status = value; RaisePropertyChangedAuto(); }
}
private long _maxProgress;
/// <summary>
/// Gets or sets the firmware upgrade maximum progress.
/// </summary>
public long MaxProgress
{
get { return _maxProgress; }
set { _maxProgress = value; RaisePropertyChangedAuto(); }
}
private long _progress;
/// <summary>
/// Gets or sets the firmware upgrade progress.
/// </summary>
public long Progress
{
get { return _progress; }
set { _progress = value; RaisePropertyChangedAuto(); }
}
private bool _isIntermediate;
/// <summary>
/// Gets or sets a value indicating whether firmware upgrade progress is intermediate.
/// </summary>
public bool IsIntermediate
{
get { return _isIntermediate; }
set { _isIntermediate = value; RaisePropertyChangedAuto(); }
}
/// <summary>
/// Gets or sets the complete command.
/// </summary>
public RelayCommand CompleteCommand { get; set; }
public RelayCommand TryAgainCommand { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="FirmwareUpgradeViewVM"/> class.
/// </summary>
/// <param name="applicationManager">The application manager.</param>
/// <param name="firmwareUpgrader">The firmware upgrader.</param>
public FirmwareUpgradeViewVM(IPPCApplicationManager applicationManager, IFirmwareUpgrader firmwareUpgrader)
{
_firmwareUpgrader = firmwareUpgrader;
CompleteCommand = new RelayCommand(Complete);
TryAgainCommand = new RelayCommand(TryAgain);
}
private async void Upgrade()
{
IsIntermediate = true;
Progress = 0;
Status = "Connecting to the embedded firmware device...";
await Task.Delay(2000);
await NavigateTo(FirmUpgradeView.FirmwareProgressView);
try
{
var handler = await _firmwareUpgrader.PerformUpgrade();
IsIntermediate = false;
handler.Progress += (_, e) =>
{
MaxProgress = e.Total;
Progress = e.Current;
Status = e.Message;
if (e.Status != Integration.Upgrade.FirmwareUpgradeStatus.Uploading)
{
IsIntermediate = true;
}
};
handler.Canceled += (_, __) =>
{
NavigateTo(FirmUpgradeView.FirmwareFailedView);
};
handler.Failed += (_, ex) =>
{
Status = ex.FlattenMessage();
NavigateTo(FirmUpgradeView.FirmwareFailedView);
};
handler.Completed += (_, __) =>
{
NavigateTo(FirmUpgradeView.FirmwareCompletedView);
};
}
catch (Exception ex)
{
Status = ex.FlattenMessage();
LogManager.Log(ex);
await NavigateTo(FirmUpgradeView.FirmwareFailedView);
}
}
private void Complete()
{
Restart();
}
private async void TryAgain()
{
await NavigateTo(FirmUpgradeView.FirmwareProgressView);
Upgrade();
}
private async void ApplicationManager_FirmwareUpgradeRequired(object sender, EventArgs e)
{
LogManager.Log("SetupRequired event received. Navigating to FirmwareUpgradeView...");
await NavigationManager.NavigateTo(NavigationView.FirmwareUpgradeView);
Upgrade();
}
private void Restart()
{
Settings.ApplicationState = ApplicationStates.Ready;
Settings.Save();
ApplicationManager.Restart();
}
/// <summary>
/// Navigates to the specified view.
/// </summary>
/// <param name="view">The view.</param>
private Task NavigateTo(FirmUpgradeView view)
{
return View.NavigateTo(view);
}
public override void OnApplicationStarted()
{
}
}
}
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