61 lines
2.4 KiB
C#
61 lines
2.4 KiB
C#
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.Scheduling;
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public class ErasePlayoutItemsHandler(IDbContextFactory<TvContext> dbContextFactory)
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: IRequestHandler<ErasePlayoutItems>
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{
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public async Task Handle(ErasePlayoutItems request, CancellationToken cancellationToken)
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{
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await using TvContext dbContext = await dbContextFactory.CreateDbContextAsync(cancellationToken);
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Option<Playout> maybePlayout = await dbContext.Playouts
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.TagWithCallSite()
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.AsNoTracking()
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.Filter(p => p.ScheduleKind == PlayoutScheduleKind.Block ||
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p.ScheduleKind == PlayoutScheduleKind.Sequential ||
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p.ScheduleKind == PlayoutScheduleKind.Scripted)
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.SingleOrDefaultAsync(p => p.Id == request.PlayoutId, cancellationToken);
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foreach (Playout playout in maybePlayout)
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{
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await using var transaction = await dbContext.Database.BeginTransactionAsync(cancellationToken);
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// find the earliest item that finishes after "now"
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Option<PlayoutItem> maybeFirstItem = await dbContext.PlayoutItems
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.TagWithCallSite()
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.AsNoTracking()
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.Where(pi => pi.PlayoutId == playout.Id)
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.Where(pi => pi.Finish > DateTime.UtcNow)
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.OrderBy(i => i.Start)
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.FirstOrDefaultAsync(cancellationToken);
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foreach (PlayoutItem firstItem in maybeFirstItem)
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{
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// delete all history starting with that item
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// importantly, do NOT delete earlier history
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await dbContext.PlayoutHistory
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.Where(ph => ph.PlayoutId == playout.Id)
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.Where(ph => ph.When >= firstItem.Start)
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.ExecuteDeleteAsync(cancellationToken);
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}
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await dbContext.PlayoutItems
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.Where(pi => pi.PlayoutId == playout.Id)
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.ExecuteDeleteAsync(cancellationToken);
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await dbContext.PlayoutGaps
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.Where(pg => pg.PlayoutId == playout.Id)
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.ExecuteDeleteAsync(cancellationToken);
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await dbContext.PlayoutBuildStatus
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.Where(pb => pb.PlayoutId == playout.Id)
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.ExecuteDeleteAsync(cancellationToken);
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await transaction.CommitAsync(cancellationToken);
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}
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}
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}
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