public GistCreateViewModel(IApplicationService applicationService, IAlertDialogFactory alertDialogFactory)
{
_applicationService = applicationService;
CurrentAccount = applicationService.Account;
Title = "Create Gist";
IsPublic = true;
var files = new ReactiveList <Tuple <string, string> >();
Files = files.CreateDerivedCollection(x =>
{
var item = new GistFileItemViewModel(x.Item1, x.Item2);
item.EditCommand.Subscribe(_ => NavigateTo(new GistFileEditViewModel(y =>
{
var i = files.IndexOf(x);
files.Remove(x);
files.Insert(i, y);
return(Task.FromResult(0));
})
{
Filename = x.Item1,
Description = x.Item2
}));
item.DeleteCommand.Subscribe(_ => files.Remove(x));
return(item);
});
SaveCommand = ReactiveCommand.CreateAsyncTask(Files.CountChanged.Select(x => x > 0),
async t =>
{
var createGist = new GistCreateModel
{
Description = Description,
Public = IsPublic,
Files = Files.ToDictionary(x => x.Name, x => new GistCreateModel.File {
Content = x.Content
})
};
var request = _applicationService.Client.AuthenticatedUser.Gists.CreateGist(createGist);
using (alertDialogFactory.Activate("Creating Gist..."))
return((await _applicationService.Client.ExecuteAsync(request)).Data);
});
SaveCommand.Subscribe(_ => Dismiss());
AddGistFileCommand = ReactiveCommand.Create()
.WithSubscription(_ => NavigateTo(new GistFileAddViewModel(x =>
{
if (Files.Any(y => y.Name == x.Item1))
{
throw new Exception("Gist already contains a file with that name!");
}
files.Add(x);
return(Task.FromResult(0));
})));
}
protected GistModifyViewModel()
{
Files = InternalFiles.CreateDerivedCollection(x =>
{
var item = new GistFileItemViewModel(x.Item1, x.Item2);
item.EditCommand.Subscribe(_ => NavigateTo(new GistFileEditViewModel(y =>
{
var i = InternalFiles.IndexOf(x);
InternalFiles.Remove(x);
InternalFiles.Insert(i, Tuple.Create(y.Item1.Trim(), y.Item2));
return(Task.FromResult(0));
})
{
Filename = x.Item1,
Description = x.Item2
}));
item.DeleteCommand.Subscribe(_ => InternalFiles.Remove(x));
return(item);
});
var canSave = new BehaviorSubject <bool>(false);
Files.IsEmptyChanged.Select(x => !x).Subscribe(canSave.OnNext);
SaveCommand = ReactiveCommand.CreateAsyncTask(canSave, _ => SaveGist());
SaveCommand.Subscribe(_ => Dismiss());
AddGistFileCommand = ReactiveCommand.Create();
AddGistFileCommand.Subscribe(_ => NavigateTo(new GistFileAddViewModel(x =>
{
if (Files.Any(y => y.Name == x.Item1))
{
throw new Exception("Gist already contains a file with that name!");
}
InternalFiles.Add(Tuple.Create(x.Item1.Trim(), x.Item2));
return(Task.FromResult(0));
})));
DismissCommand = ReactiveCommand.CreateAsyncTask(t => Discard());
DismissCommand.Where(x => x).Subscribe(_ => Dismiss());
}
protected GistModifyViewModel()
{
Files = InternalFiles.CreateDerivedCollection(x =>
{
var item = new GistFileItemViewModel(x.Item1, x.Item2);
item.EditCommand.Subscribe(_ => NavigateTo(new GistFileEditViewModel(y =>
{
var i = InternalFiles.IndexOf(x);
InternalFiles.Remove(x);
InternalFiles.Insert(i, Tuple.Create(y.Item1.Trim(), y.Item2));
return Task.FromResult(0);
})
{
Filename = x.Item1,
Description = x.Item2
}));
item.DeleteCommand.Subscribe(_ => InternalFiles.Remove(x));
return item;
});
var canSave = new BehaviorSubject<bool>(false);
Files.IsEmptyChanged.Select(x => !x).Subscribe(canSave.OnNext);
SaveCommand = ReactiveCommand.CreateAsyncTask(canSave, _ => SaveGist());
SaveCommand.Subscribe(_ => Dismiss());
AddGistFileCommand = ReactiveCommand.Create();
AddGistFileCommand.Subscribe(_ => NavigateTo(new GistFileAddViewModel(x =>
{
if (Files.Any(y => y.Name == x.Item1))
throw new Exception("Gist already contains a file with that name!");
InternalFiles.Add(Tuple.Create(x.Item1.Trim(), x.Item2));
return Task.FromResult(0);
})));
DismissCommand = ReactiveCommand.CreateAsyncTask(t => Discard());
DismissCommand.Where(x => x).Subscribe(_ => Dismiss());
}
