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96 lines
3.5 KiB
96 lines
3.5 KiB
using System.Globalization; |
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using System.Threading.Channels; |
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using ErsatzTV.Application.Libraries; |
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using ErsatzTV.Core; |
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using ErsatzTV.Core.Domain; |
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using ErsatzTV.Core.Errors; |
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using ErsatzTV.Core.Interfaces.Repositories; |
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using ErsatzTV.FFmpeg.Runtime; |
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using ErsatzTV.Infrastructure.Data; |
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using Microsoft.EntityFrameworkCore; |
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namespace ErsatzTV.Application.MediaSources; |
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public class CallLocalLibraryScannerHandler : CallLibraryScannerHandler<IScanLocalLibrary>, |
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IRequestHandler<ForceScanLocalLibrary, Either<BaseError, string>>, |
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IRequestHandler<ScanLocalLibraryIfNeeded, Either<BaseError, string>> |
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{ |
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public CallLocalLibraryScannerHandler( |
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IDbContextFactory<TvContext> dbContextFactory, |
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IConfigElementRepository configElementRepository, |
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ChannelWriter<ISearchIndexBackgroundServiceRequest> channel, |
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IMediator mediator, |
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IRuntimeInfo runtimeInfo) |
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: base(dbContextFactory, configElementRepository, channel, mediator, runtimeInfo) |
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{ |
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} |
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Task<Either<BaseError, string>> IRequestHandler<ForceScanLocalLibrary, Either<BaseError, string>>.Handle( |
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ForceScanLocalLibrary request, |
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CancellationToken cancellationToken) => Handle(request, cancellationToken); |
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Task<Either<BaseError, string>> IRequestHandler<ScanLocalLibraryIfNeeded, Either<BaseError, string>>.Handle( |
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ScanLocalLibraryIfNeeded request, |
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CancellationToken cancellationToken) => Handle(request, cancellationToken); |
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private async Task<Either<BaseError, string>> Handle(IScanLocalLibrary request, CancellationToken cancellationToken) |
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{ |
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Validation<BaseError, string> validation = await Validate(request); |
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return await validation.Match( |
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scanner => PerformScan(scanner, request, cancellationToken), |
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error => |
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{ |
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foreach (ScanIsNotRequired scanIsNotRequired in error.OfType<ScanIsNotRequired>()) |
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{ |
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return Task.FromResult<Either<BaseError, string>>(scanIsNotRequired); |
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} |
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return Task.FromResult<Either<BaseError, string>>(error.Join()); |
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}); |
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} |
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private async Task<Either<BaseError, string>> PerformScan( |
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string scanner, |
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IScanLocalLibrary request, |
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CancellationToken cancellationToken) |
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{ |
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var arguments = new List<string> |
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{ |
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"scan-local", request.LibraryId.ToString(CultureInfo.InvariantCulture) |
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}; |
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if (request.ForceScan) |
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{ |
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arguments.Add("--force"); |
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} |
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return await base.PerformScan(scanner, arguments, cancellationToken); |
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} |
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protected override async Task<DateTimeOffset> GetLastScan(TvContext dbContext, IScanLocalLibrary request) |
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{ |
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List<LibraryPath> libraryPaths = await dbContext.LibraryPaths |
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.Filter(lp => lp.LibraryId == request.LibraryId) |
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.ToListAsync(); |
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DateTime minDateTime = libraryPaths.Count != 0 |
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? libraryPaths.Min(lp => lp.LastScan ?? SystemTime.MinValueUtc) |
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: SystemTime.MaxValueUtc; |
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return new DateTimeOffset(minDateTime, TimeSpan.Zero); |
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} |
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protected override bool ScanIsRequired( |
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DateTimeOffset lastScan, |
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int libraryRefreshInterval, |
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IScanLocalLibrary request) |
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{ |
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if (lastScan == SystemTime.MaxValueUtc) |
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{ |
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return false; |
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} |
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DateTimeOffset nextScan = lastScan + TimeSpan.FromHours(libraryRefreshInterval); |
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return request.ForceScan || libraryRefreshInterval > 0 && nextScan < DateTimeOffset.Now; |
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} |
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}
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