public async Task<EditNoteModel> Build(Guid userId, int noteId)
{
var userTask = _userService.GetUser(userId);
var noteTask = _notesService.GetNote(noteId);
await Task.WhenAll(userTask, noteTask);
var user = userTask.Result;
var note = noteTask.Result;
if (user == null)
throw new ModelBuilderException("user not found");
if (note == null || !note.CanSee(user))
throw new ModelBuilderException("note not found");
var canEdit = note.CanEdit(user);
var canDelete = note.CanDelete(user);
var model = new EditNoteModel()
{
Body = note.Body,
IsPublic = note.IsPublic,
Title = note.Title,
NoteId = noteId,
CanEdit = canEdit,
CanDelete = canDelete
};
return model;
}
public async Task<SaveNoteModelBuilderResult> Build(Guid userId, EditNoteModel request)
{
var result = new SaveNoteModelBuilderResult()
{
Model = request,
IsSuccess = true
};
if (request == null)
return result;
if (request.NoteId.HasValue)
{
return await ExecuteEditCmd(userId, request, result);
}
else return await ExecuteCreateCmd(userId, request, result);
}
public async Task<ActionResult> Edit(EditNoteModel request)
{
if (!ModelState.IsValid)
{
request.CanEdit = true;
return View(request);
}
var builder = DependencyResolver.Current.GetService<SaveNoteModelBuilder>();
var result = await builder.Build(GetUserId().Value, request);
if (result.IsSuccess)
{
TempData[KeysConstants.SuccessMessageKey] = NotesEditUIResources.NoteSuccessChanged;
return RedirectToAction("Edit", new { noteId = request.NoteId.Value });
}
TempData[KeysConstants.ErrorMessageKey] = result.Error;
return View(request);
}
private async Task<SaveNoteModelBuilderResult> ExecuteEditCmd(Guid userId,
EditNoteModel request, SaveNoteModelBuilderResult result)
{
var args = new EditNoteArgs
{
Body = request.Body,
ChangedByUserId = userId,
IsPublic = request.IsPublic,
NoteId = request.NoteId.Value,
Title = request.Title
};
var cmdRes = await _editCommand.Execute(args);
if (!cmdRes.IsSuccess)
{
result.IsSuccess = false;
result.Error = cmdRes.ErrorMessage;
return result;
}
else return result;
}
private async Task<SaveNoteModelBuilderResult> ExecuteCreateCmd(Guid userId,
EditNoteModel request, SaveNoteModelBuilderResult result)
{
var createArgs = new CreateNoteArgs
{
Body = request.Body,
IsPublic = request.IsPublic,
Title = request.Title,
UserId = userId
};
var createResult = await _createCommand.Execute(createArgs);
if (!createResult.IsSuccess)
{
result.IsSuccess = false;
result.Error = createResult.ErrorMessage;
return result;
}
result.Model.NoteId = createResult.CreatedNoteId;
return result;
}
