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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.Core.DI;
using Tango.Explorer;
using Tango.PPC.BackupRestore.Views;
using Tango.PPC.Common;
using Tango.PPC.Common.BackupRestore;
using Tango.PPC.Storage;
using static Tango.PPC.BackupRestore.ViewModels.BackupErrorViewVM;
namespace Tango.PPC.BackupRestore.ViewModels
{
public class BackupViewVM : PPCViewModel
{
private String _backupFileName;
[TangoInject]
public IBackupManager BackupManager { get; set; }
private BackupRestoreProgressEventArgs _currentBackupProgress;
public BackupRestoreProgressEventArgs CurrentBackupProgress
{
get { return _currentBackupProgress; }
set { _currentBackupProgress = value; RaisePropertyChangedAuto(); }
}
private bool _isBackupJobs;
public bool IsBackupJobs
{
get { return _isBackupJobs; }
set
{
if (value)
{
_isBackupJobs = value;
RaisePropertyChangedAuto();
_isBackupFull = false;
RaisePropertyChanged(nameof(IsBackupFull));
}
else
{
RaisePropertyChangedAuto();
}
}
}
private bool _isBackupFull;
public bool IsBackupFull
{
get { return _isBackupFull; }
set
{
if (value)
{
_isBackupFull = value;
RaisePropertyChangedAuto();
_isBackupJobs = false;
RaisePropertyChanged(nameof(IsBackupJobs));
}
else
{
RaisePropertyChangedAuto();
}
}
}
private String _backupLocation;
public String BackupLocation
{
get { return _backupLocation; }
set { _backupLocation = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
}
private String _backupName;
public String BackupName
{
get { return _backupName; }
set { _backupName = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
}
public RelayCommand BackupCommand { get; set; }
public RelayCommand BrowseBackupLocationCommand { get; set; }
public BackupViewVM()
{
BrowseBackupLocationCommand = new RelayCommand(BrowseBackupLocation);
BackupCommand = new RelayCommand(StartBackup, () => !String.IsNullOrWhiteSpace(BackupName) && BackupLocation != null);
IsBackupJobs = true;
}
private async void StartBackup()
{
await NavigationManager.NavigateTo<BackupRestoreModule>(nameof(BackupProgressView), false);
try
{
IsFree = false;
NavigationManager.IsBackEnabled = false;
await BackupManager.CreateBackup(_backupFileName, BackupName, new BackupSettings()
{
Mode = IsBackupFull ? BackupMode.Full : BackupMode.Jobs,
});
await NavigationManager.NavigateTo<BackupRestoreModule>(nameof(BackupCompletedView), false);
}
catch (Exception ex)
{
LogManager.Log(ex, "The backup operation failed.");
await NavigationManager.NavigateWithObject<BackupRestoreModule, BackupErrorView, BackupErrorNavigationObject>(new BackupErrorNavigationObject()
{
Error = ex.FlattenMessage(),
}, false);
}
finally
{
IsFree = true;
NavigationManager.IsBackEnabled = true;
}
}
public override void OnApplicationStarted()
{
}
public override void OnApplicationReady()
{
base.OnApplicationReady();
BackupManager.Progress += BackupManager_Progress;
}
private void BackupManager_Progress(object sender, BackupRestoreProgressEventArgs e)
{
CurrentBackupProgress = e;
}
private async void BrowseBackupLocation()
{
var result = await NavigationManager.
NavigateForResult<StorageModule,
Storage.Views.MainView, ExplorerFileItem,
Storage.Models.StorageNavigationRequest>(
new Storage.Models.StorageNavigationRequest()
{
Intent = Storage.Models.StorageNavigationIntent.SaveFile,
DefaultFileName = $"Tango-Backup-{DateTime.Now.ToFileName()}",
Filter = ExplorerFileDefinition.Backup.Extension,
Title = "Select Destination Backup File",
});
if (result != null)
{
_backupFileName = result.Path + ExplorerFileDefinition.Backup.Extension;
BackupLocation = result.Path + ExplorerFileDefinition.Backup.Extension;
}
}
}
}
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