public async Task <Transition> Handle(CreateTransitionCommand request, CancellationToken cancellationToken)
{
var locationFrom = await _locationRepository.GetEntity(request.FromLocationId);
if (locationFrom == null)
{
throw new EntityNotFoundException <Location>(request.FromLocationId);
}
var locationTo = await _locationRepository.GetEntity(request.ToLocationId);
if (locationTo == null)
{
throw new EntityNotFoundException <Location>(request.ToLocationId);
}
var transitionExist =
await _transitionRepository.ExistTransitionBetween(locationFrom.Id, locationTo.Id);
if (transitionExist)
{
throw new TransitionAlreadyExistsException(locationFrom.Id, locationTo.Id);
}
var transition = new Transition
{
From = locationFrom,
To = locationTo
};
await _transitionRepository.AddEntity(transition);
return(transition);
}
public async Task <Location> Handle(GetLocationQuery request, CancellationToken cancellationToken)
{
var location = await _locationRepository.GetEntity(request.LocationId);
if (location == null)
{
throw new EntityNotFoundException <Location>(request.LocationId);
}
return(location);
}
public async Task <Location> Handle(UpdateLocationCommand request, CancellationToken cancellationToken)
{
var location = await _locationRepository.GetEntity(request.LocationId);
if (location == null)
{
throw new EntityNotFoundException <Location>(request.LocationId);
}
location.Name = request.Name;
location.Description = request.Description;
await _locationRepository.UpdateEntity(location);
return(location);
}