public MO2InstallerVM(InstallerVM installerVM)
{
Parent = installerVM;
Location = new FilePickerVM()
{
ExistCheckOption = FilePickerVM.CheckOptions.Off,
PathType = FilePickerVM.PathTypeOptions.Folder,
PromptTitle = "Select Installation Directory",
};
DownloadLocation = new FilePickerVM()
{
ExistCheckOption = FilePickerVM.CheckOptions.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));
Location.AdditionalError = Observable.CombineLatest(
this.WhenAny(x => x.Location.TargetPath),
this.WhenAny(x => x.DownloadLocation.TargetPath),
resultSelector: (target, download) => (target, download))
.ObserveOn(RxApp.TaskpoolScheduler)
.Select(i => MO2Installer.CheckValidInstallPath(i.target, i.download))
.ObserveOnGuiThread();
_CanInstall = Observable.CombineLatest(
this.WhenAny(x => x.Location.ErrorState),
this.WhenAny(x => x.DownloadLocation.ErrorState),
installerVM.WhenAny(x => x.ModListLocation.ErrorState),
resultSelector: (loc, modlist, download) =>
{
return(ErrorResponse.FirstFail(loc, modlist, download));
})
.ToProperty(this, nameof(CanInstall));
// Have Installation location updates modify the downloads location if empty or the same path
this.WhenAny(x => x.Location.TargetPath)
.Skip(1) // Don't do it initially
.Subscribe(installPath =>
{
if (DownloadLocation.TargetPath == default || DownloadLocation.TargetPath == installPath)
{
DownloadLocation.TargetPath = installPath.Combine("downloads");
}
})
.DisposeWith(CompositeDisposable);
// Have Download location updates change if the same as the install path
this.WhenAny(x => x.DownloadLocation.TargetPath)
.Skip(1) // Don't do it initially
.Subscribe(downloadPath =>
{
if (downloadPath != default && downloadPath == Location.TargetPath)
{
DownloadLocation.TargetPath = Location.TargetPath.Combine("downloads");
}
})
.DisposeWith(CompositeDisposable);
// Load settings
_CurrentSettings = installerVM.WhenAny(x => x.ModListLocation.TargetPath)
.Select(path => path == default ? null : installerVM.MWVM.Settings.Installer.Mo2ModlistSettings.TryCreate(path))
.ToGuiProperty(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;
AutomaticallyOverwrite = settingsPair.Current.AutomaticallyOverrideExistingInstall;
})
.DisposeWith(CompositeDisposable);
installerVM.MWVM.Settings.SaveSignal
.Subscribe(_ => SaveSettings(CurrentSettings))
.DisposeWith(CompositeDisposable);
// Hook onto user interventions, and intercept MO2 specific ones for customization
this.WhenAny(x => x.ActiveInstallation)
.Select(x => x?.LogMessages ?? Observable.Empty <IStatusMessage>())
.Switch()
.Subscribe(x =>
{
switch (x)
{
case ConfirmUpdateOfExistingInstall c:
if (AutomaticallyOverwrite)
{
c.Confirm();
}
break;
default:
break;
}
})
.DisposeWith(CompositeDisposable);
}