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80 lines
2.9 KiB
80 lines
2.9 KiB
using System.Text.RegularExpressions; |
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using System.Threading; |
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using System.Threading.Tasks; |
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using ErsatzTV.Core; |
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using ErsatzTV.Core.Interfaces.Locking; |
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using ErsatzTV.Core.Interfaces.Repositories; |
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using ErsatzTV.Core.Interfaces.Search; |
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using ErsatzTV.Core.Interfaces.Trakt; |
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using ErsatzTV.Infrastructure.Data; |
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using LanguageExt; |
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using MediatR; |
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using Microsoft.EntityFrameworkCore; |
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using Microsoft.Extensions.Logging; |
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using Unit = LanguageExt.Unit; |
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namespace ErsatzTV.Application.MediaCollections.Commands |
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{ |
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public class AddTraktListHandler : TraktCommandBase, IRequestHandler<AddTraktList, Either<BaseError, Unit>> |
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{ |
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private readonly IDbContextFactory<TvContext> _dbContextFactory; |
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private readonly IEntityLocker _entityLocker; |
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public AddTraktListHandler( |
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ITraktApiClient traktApiClient, |
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ISearchRepository searchRepository, |
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ISearchIndex searchIndex, |
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IDbContextFactory<TvContext> dbContextFactory, |
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ILogger<AddTraktListHandler> logger, |
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IEntityLocker entityLocker) |
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: base(traktApiClient, searchRepository, searchIndex, logger) |
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{ |
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_dbContextFactory = dbContextFactory; |
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_entityLocker = entityLocker; |
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} |
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public async Task<Either<BaseError, Unit>> Handle(AddTraktList request, CancellationToken cancellationToken) |
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{ |
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try |
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{ |
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Validation<BaseError, Parameters> validation = ValidateUrl(request); |
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return await validation.Match( |
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DoAdd, |
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error => Task.FromResult<Either<BaseError, Unit>>(error.Join())); |
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} |
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finally |
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{ |
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_entityLocker.UnlockTrakt(); |
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} |
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} |
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private static Validation<BaseError, Parameters> ValidateUrl(AddTraktList request) |
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{ |
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const string PATTERN = @"(?:https:\/\/trakt\.tv\/users\/)?([\w\-_]+)\/(?:lists\/)?([\w\-_]+)"; |
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Match match = Regex.Match(request.TraktListUrl, PATTERN); |
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if (match.Success) |
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{ |
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string user = match.Groups[1].Value; |
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string list = match.Groups[2].Value; |
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return new Parameters(user, list); |
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} |
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return BaseError.New("Invalid Trakt list url"); |
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} |
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private async Task<Either<BaseError, Unit>> DoAdd(Parameters parameters) |
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{ |
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await using TvContext dbContext = _dbContextFactory.CreateDbContext(); |
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return await TraktApiClient.GetUserList(parameters.User, parameters.List) |
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.BindT(list => SaveList(dbContext, list)) |
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.BindT(list => SaveListItems(dbContext, list)) |
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.BindT(list => MatchListItems(dbContext, list)) |
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.MapT(_ => Unit.Default); |
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// match list items (and update in search index) |
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} |
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private record Parameters(string User, string List); |
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} |
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}
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