using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using ErsatzTV.Core.Interfaces.Repositories;
using LanguageExt;
using MediatR;
using static ErsatzTV.Application.Plex.Mapper;

namespace ErsatzTV.Application.Plex.Queries
{
    public class
        GetPlexLibrariesBySourceIdHandler : IRequestHandler<GetPlexLibrariesBySourceId,
            List<PlexLibraryViewModel>>
    {
        private readonly IMediaSourceRepository _mediaSourceRepository;

        public GetPlexLibrariesBySourceIdHandler(IMediaSourceRepository mediaSourceRepository) =>
            _mediaSourceRepository = mediaSourceRepository;

        public Task<List<PlexLibraryViewModel>> Handle(
            GetPlexLibrariesBySourceId request,
            CancellationToken cancellationToken) =>
            _mediaSourceRepository.GetPlexLibraries(request.PlexMediaSourceId)
                .Map(list => list.Map(ProjectToViewModel).ToList());
    }
}