ErsatzTV/ErsatzTV.Application/Artists/Queries/GetAllArtistsHandler.cs

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

namespace ErsatzTV.Application.Artists.Queries
{
    public class GetAllArtistsHandler : IRequestHandler<GetAllArtists, List<NamedMediaItemViewModel>>
    {
        private readonly IArtistRepository _artistRepository;

        public GetAllArtistsHandler(IArtistRepository artistRepository) => _artistRepository = artistRepository;

        public Task<List<NamedMediaItemViewModel>> Handle(
            GetAllArtists request,
            CancellationToken cancellationToken) =>
            _artistRepository.GetAllArtists().Map(list => list.Map(ProjectToViewModel).ToList());
    }
}