Files
romrepomgr/RomRepoMgr/ViewModels/RemoveDatViewModel.cs

108 lines
4.2 KiB
C#

/******************************************************************************
// RomRepoMgr - ROM repository manager
// ----------------------------------------------------------------------------
//
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// --[ License ] --------------------------------------------------------------
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2020-2024 Natalia Portillo
*******************************************************************************/
using System.IO;
using System.Threading.Tasks;
using Avalonia.Threading;
using CommunityToolkit.Mvvm.ComponentModel;
using RomRepoMgr.Core;
using RomRepoMgr.Database;
using RomRepoMgr.Database.Models;
using RomRepoMgr.Resources;
using RomRepoMgr.Views;
using Serilog;
using Serilog.Extensions.Logging;
namespace RomRepoMgr.ViewModels;
public sealed partial class RemoveDatViewModel : ViewModelBase
{
readonly long _romSetId;
readonly RemoveDat _view;
[ObservableProperty]
string _statusMessage;
// Mock
public RemoveDatViewModel() {}
public RemoveDatViewModel(RemoveDat view, long romSetId)
{
_view = view;
_romSetId = romSetId;
}
internal void OnOpened()
{
_ = Task.Run(() =>
{
using var ctx = Context.Create(Settings.Settings.Current.DatabasePath,
new SerilogLoggerFactory(Log.Logger));
Dispatcher.UIThread.Post(() => StatusMessage = Localization.RetrievingRomSetFromDatabase);
RomSet romSet = ctx.RomSets.Find(_romSetId);
if(romSet == null) return;
Dispatcher.UIThread.Post(() => StatusMessage = Localization.RemovingRomSetFromDatabase);
ctx.RomSets.Remove(romSet);
Dispatcher.UIThread.Post(() => StatusMessage = Localization.SavingChangesToDatabase);
ctx.SaveChanges();
Dispatcher.UIThread.Post(() => StatusMessage = Localization.RemovingDatFileFromRepo);
byte[] sha384Bytes = new byte[48];
string sha384 = romSet.Sha384;
for(int i = 0; i < 48; i++)
{
if(sha384[i * 2] >= 0x30 && sha384[i * 2] <= 0x39)
sha384Bytes[i] = (byte)((sha384[i * 2] - 0x30) * 0x10);
else if(sha384[i * 2] >= 0x41 && sha384[i * 2] <= 0x46)
sha384Bytes[i] = (byte)((sha384[i * 2] - 0x37) * 0x10);
else if(sha384[i * 2] >= 0x61 && sha384[i * 2] <= 0x66)
sha384Bytes[i] = (byte)((sha384[i * 2] - 0x57) * 0x10);
if(sha384[i * 2 + 1] >= 0x30 && sha384[i * 2 + 1] <= 0x39)
sha384Bytes[i] += (byte)(sha384[i * 2 + 1] - 0x30);
else if(sha384[i * 2 + 1] >= 0x41 && sha384[i * 2 + 1] <= 0x46)
sha384Bytes[i] += (byte)(sha384[i * 2 + 1] - 0x37);
else if(sha384[i * 2 + 1] >= 0x61 && sha384[i * 2 + 1] <= 0x66)
sha384Bytes[i] += (byte)(sha384[i * 2 + 1] - 0x57);
}
string datHash32 = Base32.ToBase32String(sha384Bytes);
string datFilesPath = Path.Combine(Settings.Settings.Current.RepositoryPath, "datfiles");
string compressedDatPath = Path.Combine(datFilesPath, datHash32 + ".lz");
if(File.Exists(compressedDatPath)) File.Delete(compressedDatPath);
Dispatcher.UIThread.Post(_view.Close);
});
}
}