public virtual async Task <IEnumerable <ReleaseInfo> > PerformQuery(TorznabQuery query)
{
IEnumerable <Task <IEnumerable <ReleaseInfo> > > tasks = Indexers.Where(i => i.CanHandleQuery(query)).Select(i => i.PerformQuery(query)).ToList(); // explicit conversion to List to execute LINQ query
bool needFallback = query.IsImdbQuery;
IEnumerable <string> fallbackTitles = null;
if (needFallback)
{
var imdb = new ImdbResolver(webclient);
fallbackTitles = await imdb.GetAllTitles(query.ImdbID);
var fallbackQueries = fallbackTitles.Select(t => query.CreateFallback(t));
var backupTasks = fallbackQueries.SelectMany(q => Indexers.Where(i => !i.CanHandleQuery(query) && i.CanHandleQuery(q)).Select(i => i.PerformQuery(q.Clone())));
tasks = tasks.Concat(backupTasks.ToList()); // explicit conversion to List to execute LINQ query
}
var aggregateTask = Task.WhenAll <IEnumerable <ReleaseInfo> >(tasks);
try {
await aggregateTask;
} catch {
logger.Error(aggregateTask.Exception, "Error during request in metaindexer " + ID);
}
var unorderedResult = tasks.Where(x => x.Status == TaskStatus.RanToCompletion).SelectMany(x => x.Result);
var orderedResult = unorderedResult.Where(r => {
var normalizedTitles = fallbackTitles.Concat(fallbackTitles.Select(t => t.Replace(' ', '.').Replace(":", ""))).Select(t => t.ToLowerInvariant());
foreach (var title in normalizedTitles)
{
if (r.Title.ToLowerInvariant().Contains(title))
{
return(true);
}
}
return(false);
}).OrderByDescending(r => r.Gain);
var filteredResult = orderedResult.Where(r => {
if (r.Imdb != null)
{
try {
return(Int64.Parse(query.ImdbID.Select(c => char.IsDigit(c)).ToString()) == r.Imdb);
} catch {
// Cannot safely determine whether result is what we
// wanted, so let's just leave it alone...
}
}
return(true);
});
// Limiting the response size might be interesting for use-cases where there are
// tons of trackers configured in Jackett. For now just use the limit param if
// someone wants to do that.
IEnumerable <ReleaseInfo> result = filteredResult;
if (query.Limit > 0)
{
result = result.Take(query.Limit);
}
return(result);
}