36 lines
1.5 KiB
C#
36 lines
1.5 KiB
C#
using ErsatzTV.Core;
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using ErsatzTV.Core.Domain;
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using ErsatzTV.Infrastructure.Data;
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using Microsoft.EntityFrameworkCore;
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namespace ErsatzTV.Application.MediaCollections;
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public class CreatePlaylistGroupHandler(IDbContextFactory<TvContext> dbContextFactory)
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: IRequestHandler<CreatePlaylistGroup, Either<BaseError, PlaylistGroupViewModel>>
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{
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public async Task<Either<BaseError, PlaylistGroupViewModel>> Handle(
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CreatePlaylistGroup request,
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CancellationToken cancellationToken)
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{
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await using TvContext dbContext = await dbContextFactory.CreateDbContextAsync(cancellationToken);
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Validation<BaseError, PlaylistGroup> validation = await Validate(request);
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return await validation.Apply(profile => PersistPlaylistGroup(dbContext, profile));
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}
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private static async Task<PlaylistGroupViewModel> PersistPlaylistGroup(
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TvContext dbContext,
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PlaylistGroup playlistGroup)
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{
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await dbContext.PlaylistGroups.AddAsync(playlistGroup);
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await dbContext.SaveChangesAsync();
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return Mapper.ProjectToViewModel(playlistGroup);
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}
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private static Task<Validation<BaseError, PlaylistGroup>> Validate(CreatePlaylistGroup request) =>
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Task.FromResult(ValidateName(request).Map(name => new PlaylistGroup { Name = name, Playlists = [] }));
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private static Validation<BaseError, string> ValidateName(CreatePlaylistGroup createPlaylistGroup) =>
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createPlaylistGroup.NotEmpty(x => x.Name)
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.Bind(_ => createPlaylistGroup.NotLongerThan(50)(x => x.Name));
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}
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