RunnersMeet/src/RunnersMeet.Server/Persistence/UpdateTrackCommand.cs

using System.Security;
using RunnersMeet.Server.Domain;

namespace RunnersMeet.Server.Persistence;

public class UpdateTrackCommand : IRequestHandler<TrackUpdate, Track>
{
	private readonly IDatabase _database;

	public UpdateTrackCommand(IDatabase database)
	{
		_database = database;
	}

	public Track Handle(TrackUpdate request)
	{
		var dbTrack = _database.Tracks.FindById(request.Track.TrackId);

		if (dbTrack == null)
		{
			throw new ArgumentException($"Track with OID {request.Track.TrackId} does not exist", nameof(request.Track));
		}

		if (dbTrack.Owner.UserId != request.Owner)
		{
			throw new SecurityException("Trying to modify a track owned by somebody else");
		}

		dbTrack.DisplayName = request.Track.DisplayName;

		_database.Tracks.Update(dbTrack);

		return dbTrack;
	}
}