Files
ersatztv/ErsatzTV.Application/Configuration/Commands/UpdateLibraryRefreshIntervalHandler.cs

34 lines
1.3 KiB
C#

using System.Threading;
using System.Threading.Tasks;
using ErsatzTV.Core;
using ErsatzTV.Core.Domain;
using ErsatzTV.Core.Interfaces.Repositories;
using LanguageExt;
using static LanguageExt.Prelude;
namespace ErsatzTV.Application.Configuration.Commands
{
public class UpdateLibraryRefreshIntervalHandler :
MediatR.IRequestHandler<UpdateLibraryRefreshInterval, Either<BaseError, Unit>>
{
private readonly IConfigElementRepository _configElementRepository;
public UpdateLibraryRefreshIntervalHandler(IConfigElementRepository configElementRepository) =>
_configElementRepository = configElementRepository;
public Task<Either<BaseError, Unit>> Handle(
UpdateLibraryRefreshInterval request,
CancellationToken cancellationToken) =>
Validate(request)
.MapT(_ => _configElementRepository.Upsert(ConfigElementKey.LibraryRefreshInterval, request.LibraryRefreshInterval))
.Bind(v => v.ToEitherAsync());
private static Task<Validation<BaseError, Unit>> Validate(UpdateLibraryRefreshInterval request) =>
Optional(request.LibraryRefreshInterval)
.Where(lri => lri > 0)
.Map(_ => Unit.Default)
.ToValidation<BaseError>("Tuner count must be greater than zero")
.AsTask();
}
}