public static ValidationResult Validate(MetadataCreateCommand command)
{
if (command == null || string.IsNullOrEmpty(command.TrackId) || string.IsNullOrEmpty(command.ReleaseId))
{
return(ValidationResult.ErrorOf("Command can't be null and should have track and release ids filled"));
}
if (!string.IsNullOrEmpty(command.Title) ||
!string.IsNullOrEmpty(command.Genre) ||
!string.IsNullOrEmpty(command.Artist) ||
!string.IsNullOrEmpty(command.Album) ||
command.Number.HasValue)
{
return(ValidationResult.Ok);
}
return(ValidationResult.ErrorOf("Command has to initialize at least one field"));
}
public ReleaseState AddMetadata(MetadataCreateCommand command)
{
if (this.TrackList.ContainsKey(command.TrackId) || command.Timestamp <= this.Timestamp)
{
return(this);
}
var state = new ReleaseState(this);
state.TrackList = this.TrackList.Add(command.TrackId, new MetadataState(command.TrackId,
command.ReleaseId,
command.Title,
command.Artist,
command.Album,
command.Genre,
command.Number));
state.Timestamp = command.Timestamp;
return(state);
}
private bool HandleMetadataAdded(MetadataCreateCommand command)
{
if (!IsMetadataAddValid(command))
{
return(false);
}
var evt = new MetadataCreated
{
TrackId = command.TrackId,
Album = command.Album,
Artist = command.Artist,
Genre = command.Genre,
Timestamp = command.Timestamp,
Title = command.Title
};
Persist(evt, e =>
{
_state = _state.AddMetadata(command);
TellStateUpdated();
});
return(true);
}
private bool IsMetadataAddValid(MetadataCreateCommand command)
{
return(CommandValidator.Validate(command).Success &&
command.ReleaseId == PersistenceId &&
TrackIds.Contains(command.TrackId));
}
public void AddMetadata(MetadataCreateCommand createMetadata)
{
WithValidation(() => CommandValidator.Validate(createMetadata));
ActorModel.TellReleaseActor(createMetadata.ReleaseId, createMetadata);
}
public void AddMetadata([FromBody] MetadataCreateCommand command)
{
_releaseService.AddMetadata(command);
}
