public void CallsTodoWhenTodoCommand()
{
TodoCommand todoCommand = new TodoCommand();
_controllerFixture.Controller.Execute(todoCommand);
_controllerFixture.Todo.Verify(x => x.Execute(It.IsAny <Core.Boundaries.Todo.Request>()), Times.Once);
}
private void Validate(TodoCommand cmd)
{
if (string.IsNullOrEmpty(cmd.Title))
{
throw new TodoException("Cannot perform operation. Title is empty");
}
}
private void TrySave(TodoCommand cmd)
{
Validate(cmd);
_repo.TryAdd(new TodoItem()
{
Title = cmd.Title,
IsCompleted = cmd.IsCompleted
});
}
public static TodoResponse CreateSuccessResponse(this TodoCommand cmd)
{
return(new TodoResponse()
{
OperationUUID = cmd.OperationUUID,
IsSuccess = true,
Operation = cmd.Operation
});
}
public static TodoResponse CreateErrorResponse(this TodoCommand cmd, string error)
{
return(new TodoResponse()
{
OperationUUID = cmd.OperationUUID,
IsSuccess = false,
Operation = cmd.Operation,
ErrorMessage = error
});
}
public static TodoResponse CreateSuccessResponse(this TodoCommand cmd, IEnumerable <ITodoItem> list)
{
return(new TodoResponse()
{
OperationUUID = cmd.OperationUUID,
IsSuccess = true,
Operation = cmd.Operation,
TaskList = list.Cast <TodoItem>().ToList()
});
}
private static async Task ExecuteTodoOperation(TodoCommand cmd)
{
PrintDebug($"Sending operation {cmd.Operation} for {cmd.Title}");
HttpContent content = new StringContent(JsonConvert.SerializeObject(cmd), Encoding.UTF8, "application/json");
var response = await httpClient.PostAsync(server_url, content);
var bodyOfResponse = await response.Content.ReadAsStringAsync();
PrintDebug(bodyOfResponse);
var todoResponse = JsonConvert.DeserializeObject <TodoResponse>(bodyOfResponse);
todoResponse.WriteToConsole();
}
public TodoResponse Handle(TodoCommand command)
{
try
{
//we can add here some safeguard to protect heavy load on _repo..
IEnumerable <ITodoItem> response = null;
switch (command.Operation)
{
case EnumOperation.Add:
this.TrySave(command); break;
case EnumOperation.Update:
this.RenameTask(command);
break;
case EnumOperation.Delete:
this.TryRemove(command);
break;
case EnumOperation.Complete:
this.SetCompletedMode(command, true);
break;
case EnumOperation.Undo:
this.SetCompletedMode(command, false);
break;
case EnumOperation.List:
response = this.GetItems();
break;
case EnumOperation.ListCompleted:
response = this.GetItems(true);
break;
default:
throw new Exception($"Unhandled operation {command.Operation}");
}
return(response == null?command.CreateSuccessResponse() : command.CreateSuccessResponse(response));
}
catch (Exception ex)
{
_logger.LogError($"TodoProcessor failed for operation {command.OperationUUID} on executing {command.Operation}: {ex.ToString()}");
return(command.CreateErrorResponse(ex.Message));
}
}
private void SetCompletedMode(TodoCommand cmd, bool isCompleted)
{
Validate(cmd);
var existingItem = _repo.Get(p => p.Title == cmd.Title).FirstOrDefault();
if (existingItem == null)
{
throw new TodoException($"item {cmd.Title} is not exist");
}
if (existingItem.IsCompleted == isCompleted)
{
throw new TodoException($"cannot set completed/undo to {cmd.Title}. It's already in the same state");
}
_repo.Update(cmd.Title, new TodoItem()
{
Title = cmd.Title, IsCompleted = isCompleted
});
}
public async Task <IActionResult> CreateTodo(string todoDescription)
{
Devon4NetLogger.Debug("Executing CreateTodo from controller RabbitMqController");
if (RabbitMqOptions?.Hosts == null || !RabbitMqOptions.Hosts.Any())
{
return(StatusCode(StatusCodes.Status500InternalServerError, "No RabbitMq instance set up"));
}
if (string.IsNullOrEmpty(todoDescription))
{
return(StatusCode(StatusCodes.Status400BadRequest, "Please provide a valid description for the TO-DO"));
}
var todoCommand = new TodoCommand {
Description = todoDescription
};
var published = await TodoRabbitMqHandler.Publish(todoCommand).ConfigureAwait(false);
return(Ok(published));
}
public async Task <IActionResult> Post([FromBody] TodoCommand command)
{
try
{
var processorResponse = await Task.Run(() => _processor.Handle(command)); //wrapping as Task to utilize async/await pattern
if (processorResponse.IsSuccess)
{
_logger.LogInformation($"Command {command.OperationUUID} Operation:{command.Operation} completed successfully");
return(Ok(processorResponse));
}
else
{
_logger.LogError($"Command {command.OperationUUID} Operation:{command.Operation} completed with error: {processorResponse.ErrorMessage}");
return(StatusCode(500, processorResponse));
}
}
catch (Exception ex)
{
_logger.LogError($"Command {command.OperationUUID} Operation:{command.Operation} completed with error: {ex.ToString()}");
return(StatusCode(500, command.CreateErrorResponse(ex.Message)));
}
}
private void RenameTask(TodoCommand cmd)
{
Validate(cmd);
if (string.IsNullOrEmpty(cmd.NewTitle))
{
throw new TodoException("Cannot perform operation. NewTitle is empty");
}
var existing = _repo.Get(p => p.Title == cmd.Title).FirstOrDefault();
if (existing == null)
{
throw new TodoException($"item {cmd.Title} is not exist");
}
//let's make sure we able to add this task as no one else "catch" same name already
_repo.TryAdd(new TodoItem()
{
Title = cmd.NewTitle,
IsCompleted = existing.IsCompleted
});
//now let's remove the original task
TryRemove(cmd);
}
private void TryRemove(TodoCommand cmd)
{
Validate(cmd);
_repo.Delete(cmd.Title);
}
public void Execute(TodoCommand todoCommand)
{
var request = new Core.Boundaries.Todo.Request(todoCommand.Title);
todoUseCase.Execute(request);
}