wabbajack/Wabbajack/View Models/InstallerVM.cs
2019-11-24 17:42:28 -06:00

378 lines
16 KiB
C#

using Syroot.Windows.IO;
using System;
using ReactiveUI;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Reactive.Disposables;
using System.Reactive.Linq;
using System.Reflection;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media.Imaging;
using Wabbajack.Common;
using Wabbajack.Lib;
using ReactiveUI.Fody.Helpers;
using System.Windows.Media;
using DynamicData;
using DynamicData.Binding;
namespace Wabbajack
{
public class InstallerVM : ViewModel
{
public SlideShow Slideshow { get; }
public MainWindowVM MWVM { get; }
public BitmapImage WabbajackLogo { get; } = UIUtils.BitmapImageFromResource("Wabbajack.Resources.Wabba_Mouth.png");
private readonly ObservableAsPropertyHelper<ModListVM> _modList;
public ModListVM ModList => _modList.Value;
public FilePickerVM ModListPath { get; }
[Reactive]
public bool UIReady { get; set; }
private readonly ObservableAsPropertyHelper<string> _htmlReport;
public string HTMLReport => _htmlReport.Value;
[Reactive]
public AInstaller ActiveInstallation { get; private set; }
private readonly ObservableAsPropertyHelper<bool> _installing;
public bool Installing => _installing.Value;
/// <summary>
/// Tracks whether to show the installing pane
/// </summary>
[Reactive]
public bool InstallingMode { get; set; }
public FilePickerVM Location { get; }
public FilePickerVM DownloadLocation { get; }
private readonly ObservableAsPropertyHelper<ImageSource> _image;
public ImageSource Image => _image.Value;
private readonly ObservableAsPropertyHelper<string> _titleText;
public string TitleText => _titleText.Value;
private readonly ObservableAsPropertyHelper<string> _authorText;
public string AuthorText => _authorText.Value;
private readonly ObservableAsPropertyHelper<string> _description;
public string Description => _description.Value;
private readonly ObservableAsPropertyHelper<string> _progressTitle;
public string ProgressTitle => _progressTitle.Value;
private readonly ObservableAsPropertyHelper<string> _modListName;
public string ModListName => _modListName.Value;
private readonly ObservableAsPropertyHelper<float> _percentCompleted;
public float PercentCompleted => _percentCompleted.Value;
public ObservableCollectionExtended<CPUStatus> StatusList { get; } = new ObservableCollectionExtended<CPUStatus>();
public ObservableCollectionExtended<string> Log => MWVM.Log;
private readonly ObservableAsPropertyHelper<ModlistInstallationSettings> _CurrentSettings;
public ModlistInstallationSettings CurrentSettings => _CurrentSettings.Value;
// Command properties
public IReactiveCommand BeginCommand { get; }
public IReactiveCommand ShowReportCommand { get; }
public IReactiveCommand OpenReadmeCommand { get; }
public IReactiveCommand VisitWebsiteCommand { get; }
public IReactiveCommand BackCommand { get; }
public InstallerVM(MainWindowVM mainWindowVM)
{
if (Path.GetDirectoryName(Assembly.GetEntryAssembly().Location.ToLower()) == KnownFolders.Downloads.Path.ToLower())
{
MessageBox.Show(
"Wabbajack is running inside your Downloads folder. This folder is often highly monitored by antivirus software and these can often " +
"conflict with the operations Wabbajack needs to perform. Please move this executable outside of your Downloads folder and then restart the app.",
"Cannot run inside Downloads",
MessageBoxButton.OK,
MessageBoxImage.Error);
Environment.Exit(1);
}
MWVM = mainWindowVM;
Location = new FilePickerVM()
{
ExistCheckOption = FilePickerVM.ExistCheckOptions.Off,
PathType = FilePickerVM.PathTypeOptions.Folder,
PromptTitle = "Select Installation Directory",
};
Location.AdditionalError = this.WhenAny(x => x.Location.TargetPath)
.Select(x => Utils.IsDirectoryPathValid(x));
DownloadLocation = new FilePickerVM()
{
ExistCheckOption = FilePickerVM.ExistCheckOptions.Off,
PathType = FilePickerVM.PathTypeOptions.Folder,
PromptTitle = "Select a location for MO2 downloads",
};
DownloadLocation.AdditionalError = this.WhenAny(x => x.DownloadLocation.TargetPath)
.Select(x => Utils.IsDirectoryPathValid(x));
ModListPath = new FilePickerVM()
{
ExistCheckOption = FilePickerVM.ExistCheckOptions.On,
PathType = FilePickerVM.PathTypeOptions.File,
PromptTitle = "Select a modlist to install"
};
// Load settings
_CurrentSettings = this.WhenAny(x => x.ModListPath.TargetPath)
.Select(path => path == null ? null : MWVM.Settings.Installer.ModlistSettings.TryCreate(path))
.ToProperty(this, nameof(CurrentSettings));
this.WhenAny(x => x.CurrentSettings)
.Pairwise()
.Subscribe(settingsPair =>
{
SaveSettings(settingsPair.Previous);
if (settingsPair.Current == null) return;
Location.TargetPath = settingsPair.Current.InstallationLocation;
DownloadLocation.TargetPath = settingsPair.Current.DownloadLocation;
})
.DisposeWith(CompositeDisposable);
MWVM.Settings.SaveSignal
.Subscribe(_ => SaveSettings(CurrentSettings))
.DisposeWith(CompositeDisposable);
_modList = this.WhenAny(x => x.ModListPath.TargetPath)
.ObserveOn(RxApp.TaskpoolScheduler)
.Select(modListPath =>
{
if (modListPath == null) return default(ModListVM);
var modList = AInstaller.LoadFromFile(modListPath);
if (modList == null) return default(ModListVM);
return new ModListVM(modList, modListPath);
})
.ObserveOnGuiThread()
.StartWith(default(ModListVM))
.ToProperty(this, nameof(ModList));
_htmlReport = this.WhenAny(x => x.ModList)
.Select(modList => modList?.ReportHTML)
.ToProperty(this, nameof(HTMLReport));
_installing = this.WhenAny(x => x.ActiveInstallation)
.Select(compilation => compilation != null)
.ObserveOnGuiThread()
.ToProperty(this, nameof(Installing));
BackCommand = ReactiveCommand.Create(
execute: () => mainWindowVM.ActivePane = mainWindowVM.ModeSelectionVM,
canExecute: this.WhenAny(x => x.Installing)
.Select(x => !x));
_percentCompleted = this.WhenAny(x => x.ActiveInstallation)
.StartWith(default(AInstaller))
.Pairwise()
.Select(c =>
{
if (c.Current == null)
{
return Observable.Return<float>(c.Previous == null ? 0f : 1f);
}
return c.Current.PercentCompleted;
})
.Switch()
.Debounce(TimeSpan.FromMilliseconds(25))
.ToProperty(this, nameof(PercentCompleted));
Slideshow = new SlideShow(this);
// Set display items to modlist if configuring or complete,
// or to the current slideshow data if installing
_image = Observable.CombineLatest(
this.WhenAny(x => x.ModList)
.SelectMany(x => x?.ImageObservable ?? Observable.Empty<BitmapImage>())
.NotNull()
.StartWith(WabbajackLogo),
this.WhenAny(x => x.Slideshow.Image)
.StartWith(default(BitmapImage)),
this.WhenAny(x => x.Installing),
resultSelector: (modList, slideshow, installing) => installing ? slideshow : modList)
.Select<BitmapImage, ImageSource>(x => x)
.ToProperty(this, nameof(Image));
_titleText = Observable.CombineLatest(
this.WhenAny(x => x.ModList.Name),
this.WhenAny(x => x.Slideshow.TargetMod.ModName)
.StartWith(default(string)),
this.WhenAny(x => x.Installing),
resultSelector: (modList, mod, installing) => installing ? mod : modList)
.ToProperty(this, nameof(TitleText));
_authorText = Observable.CombineLatest(
this.WhenAny(x => x.ModList.Author),
this.WhenAny(x => x.Slideshow.TargetMod.ModAuthor)
.StartWith(default(string)),
this.WhenAny(x => x.Installing),
resultSelector: (modList, mod, installing) => installing ? mod : modList)
.ToProperty(this, nameof(AuthorText));
_description = Observable.CombineLatest(
this.WhenAny(x => x.ModList.Description),
this.WhenAny(x => x.Slideshow.TargetMod.ModDescription)
.StartWith(default(string)),
this.WhenAny(x => x.Installing),
resultSelector: (modList, mod, installing) => installing ? mod : modList)
.ToProperty(this, nameof(Description));
_modListName = this.WhenAny(x => x.ModList)
.Select(x => x?.Name)
.ToProperty(this, nameof(ModListName));
// Define commands
ShowReportCommand = ReactiveCommand.Create(ShowReport);
OpenReadmeCommand = ReactiveCommand.Create(
execute: OpenReadmeWindow,
canExecute: this.WhenAny(x => x.ModList)
.Select(modList => !string.IsNullOrEmpty(modList?.Readme))
.ObserveOnGuiThread());
BeginCommand = ReactiveCommand.CreateFromTask(
execute: ExecuteBegin,
canExecute: Observable.CombineLatest(
this.WhenAny(x => x.Installing),
this.WhenAny(x => x.Location.InError),
this.WhenAny(x => x.DownloadLocation.InError),
resultSelector: (installing, loc, download) =>
{
if (installing) return false;
return !loc && !download;
})
.ObserveOnGuiThread());
VisitWebsiteCommand = ReactiveCommand.Create(
execute: () => Process.Start(ModList.Website),
canExecute: this.WhenAny(x => x.ModList.Website)
.Select(x => x?.StartsWith("https://") ?? false)
.ObserveOnGuiThread());
// Have Installation location updates modify the downloads location if empty
this.WhenAny(x => x.Location.TargetPath)
.Skip(1) // Don't do it initially
.Subscribe(installPath =>
{
if (string.IsNullOrWhiteSpace(DownloadLocation.TargetPath))
{
DownloadLocation.TargetPath = Path.Combine(installPath, "downloads");
}
})
.DisposeWith(CompositeDisposable);
_progressTitle = Observable.CombineLatest(
this.WhenAny(x => x.Installing),
this.WhenAny(x => x.InstallingMode),
resultSelector: (installing, mode) =>
{
if (!installing) return "Configuring";
return mode ? "Installing" : "Installed";
})
.ToProperty(this, nameof(ProgressTitle));
// Compile progress updates and populate ObservableCollection
this.WhenAny(x => x.ActiveInstallation)
.SelectMany(c => c?.QueueStatus ?? Observable.Empty<CPUStatus>())
.ObserveOn(RxApp.TaskpoolScheduler)
.ToObservableChangeSet(x => x.ID)
.Batch(TimeSpan.FromMilliseconds(250), RxApp.TaskpoolScheduler)
.EnsureUniqueChanges()
.ObserveOn(RxApp.MainThreadScheduler)
.Sort(SortExpressionComparer<CPUStatus>.Ascending(s => s.ID), SortOptimisations.ComparesImmutableValuesOnly)
.Bind(StatusList)
.Subscribe()
.DisposeWith(CompositeDisposable);
}
private void ShowReport()
{
var file = Path.GetTempFileName() + ".html";
File.WriteAllText(file, HTMLReport);
Process.Start(file);
}
private void OpenReadmeWindow()
{
if (string.IsNullOrEmpty(ModList.Readme)) return;
using (var fs = new FileStream(ModListPath.TargetPath, FileMode.Open, FileAccess.Read, FileShare.Read))
using (var ar = new ZipArchive(fs, ZipArchiveMode.Read))
using (var ms = new MemoryStream())
{
var entry = ar.GetEntry(ModList.Readme);
if (entry == null)
{
Utils.Log($"Tried to open a non-existant readme: {ModList.Readme}");
return;
}
using (var e = entry.Open())
{
e.CopyTo(ms);
}
ms.Seek(0, SeekOrigin.Begin);
using (var reader = new StreamReader(ms))
{
var viewer = new TextViewer(reader.ReadToEnd(), ModList.Name);
viewer.Show();
}
}
}
private async Task ExecuteBegin()
{
InstallingMode = true;
AInstaller installer;
try
{
installer = new MO2Installer(ModListPath.TargetPath, ModList.SourceModList, Location.TargetPath)
{
DownloadFolder = DownloadLocation.TargetPath
};
}
catch (Exception ex)
{
while (ex.InnerException != null) ex = ex.InnerException;
Utils.Log(ex.StackTrace);
Utils.Log(ex.ToString());
Utils.Log($"{ex.Message} - Can't continue");
ActiveInstallation = null;
return;
}
await Task.Run(async () =>
{
IDisposable subscription = null;
try
{
var workTask = installer.Begin();
ActiveInstallation = installer;
await workTask;
}
catch (Exception ex)
{
while (ex.InnerException != null) ex = ex.InnerException;
Utils.Log(ex.StackTrace);
Utils.Log(ex.ToString());
Utils.Log($"{ex.Message} - Can't continue");
}
finally
{
// Dispose of CPU tracking systems
subscription?.Dispose();
ActiveInstallation = null;
}
});
}
private void SaveSettings(ModlistInstallationSettings settings)
{
MWVM.Settings.Installer.LastInstalledListLocation = ModListPath.TargetPath;
if (settings == null) return;
settings.InstallationLocation = Location.TargetPath;
settings.DownloadLocation = DownloadLocation.TargetPath;
}
}
}