public async Task <Either <BaseError, Unit> > Handle(
UpdateSmartCollection request,
CancellationToken cancellationToken)
{
await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
Validation <BaseError, SmartCollection> validation = await Validate(dbContext, request);
return(await LanguageExtensions.Apply(validation, c => ApplyUpdateRequest(dbContext, c, request)));
}
private static Task <Validation <BaseError, SmartCollection> > SmartCollectionMustExist(
TvContext dbContext,
UpdateSmartCollection updateCollection) =>
dbContext.SmartCollections
.SelectOneAsync(c => c.Id, c => c.Id == updateCollection.Id)
.Map(o => o.ToValidation <BaseError>("SmartCollection does not exist."));
private static Task <Validation <BaseError, SmartCollection> > Validate(
TvContext dbContext,
UpdateSmartCollection request) => SmartCollectionMustExist(dbContext, request);
private async Task <Unit> ApplyUpdateRequest(TvContext dbContext, SmartCollection c, UpdateSmartCollection request)
{
c.Query = request.Query;
// rebuild playouts
if (await dbContext.SaveChangesAsync() > 0)
{
// refresh all playouts that use this smart collection
foreach (int playoutId in await _mediaCollectionRepository.PlayoutIdsUsingSmartCollection(request.Id))
{
await _channel.WriteAsync(new BuildPlayout(playoutId, PlayoutBuildMode.Refresh));
}
}
return(Unit.Default);
}
