add multiselect and movie tags (#62)

* add basic selection behavior to search results * add search scrolling, selection actions * include shows in multiselect * multiselect movies, shows, collection items * add movie and show tags * code cleanup * update show screenshot
2021-03-11 18:49:00 +00:00
parent 76d6725dd5
commit c240169fc9
39 changed files with 4210 additions and 108 deletions
@@ -0,0 +1,9 @@
+using System.Collections.Generic;
+using ErsatzTV.Core;
+using LanguageExt;
+
+namespace ErsatzTV.Application.MediaCollections.Commands
+{
+    public record AddItemsToCollection
+        (int CollectionId, List<int> MovieIds, List<int> ShowIds) : MediatR.IRequest<Either<BaseError, Unit>>;
+}
@@ -0,0 +1,80 @@
+using System.Linq;
+using System.Threading;
+using System.Threading.Channels;
+using System.Threading.Tasks;
+using ErsatzTV.Application.Playouts.Commands;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Interfaces.Repositories;
+using LanguageExt;
+using static LanguageExt.Prelude;
+
+namespace ErsatzTV.Application.MediaCollections.Commands
+{
+    public class
+        AddItemsToCollectionHandler : MediatR.IRequestHandler<AddItemsToCollection, Either<BaseError, Unit>>
+    {
+        private readonly ChannelWriter<IBackgroundServiceRequest> _channel;
+        private readonly IMediaCollectionRepository _mediaCollectionRepository;
+        private readonly IMovieRepository _movieRepository;
+        private readonly ITelevisionRepository _televisionRepository;
+
+        public AddItemsToCollectionHandler(
+            IMediaCollectionRepository mediaCollectionRepository,
+            IMovieRepository movieRepository,
+            ITelevisionRepository televisionRepository,
+            ChannelWriter<IBackgroundServiceRequest> channel)
+        {
+            _mediaCollectionRepository = mediaCollectionRepository;
+            _movieRepository = movieRepository;
+            _televisionRepository = televisionRepository;
+            _channel = channel;
+        }
+
+        public Task<Either<BaseError, Unit>> Handle(
+            AddItemsToCollection request,
+            CancellationToken cancellationToken) =>
+            Validate(request)
+                .MapT(_ => ApplyAddItemsRequest(request))
+                .Bind(v => v.ToEitherAsync());
+
+        private async Task<Unit> ApplyAddItemsRequest(AddItemsToCollection request)
+        {
+            if (await _mediaCollectionRepository.AddMediaItems(
+                request.CollectionId,
+                request.MovieIds.Append(request.ShowIds).ToList()))
+            {
+                // rebuild all playouts that use this collection
+                foreach (int playoutId in await _mediaCollectionRepository
+                    .PlayoutIdsUsingCollection(request.CollectionId))
+                {
+                    await _channel.WriteAsync(new BuildPlayout(playoutId, true));
+                }
+            }
+
+            return Unit.Default;
+        }
+
+        private async Task<Validation<BaseError, Unit>> Validate(AddItemsToCollection request) =>
+            (await CollectionMustExist(request), await ValidateMovies(request), await ValidateShows(request))
+            .Apply((_, _, _) => Unit.Default);
+
+        private Task<Validation<BaseError, Unit>> CollectionMustExist(AddItemsToCollection request) =>
+            _mediaCollectionRepository.GetCollectionWithItems(request.CollectionId)
+                .MapT(_ => Unit.Default)
+                .Map(v => v.ToValidation<BaseError>("Collection does not exist."));
+
+        private Task<Validation<BaseError, Unit>> ValidateMovies(AddItemsToCollection request) =>
+            _movieRepository.AllMoviesExist(request.MovieIds)
+                .Map(Optional)
+                .Filter(v => v == true)
+                .MapT(_ => Unit.Default)
+                .Map(v => v.ToValidation<BaseError>("Movie does not exist"));
+
+        private Task<Validation<BaseError, Unit>> ValidateShows(AddItemsToCollection request) =>
+            _televisionRepository.AllShowsExist(request.ShowIds)
+                .Map(Optional)
+                .Filter(v => v == true)
+                .MapT(_ => Unit.Default)
+                .Map(v => v.ToValidation<BaseError>("Show does not exist"));
+    }
+}