public IDownloadClient GetDownloadClient(DownloadProtocol downloadProtocol, int indexerId = 0)
{
var availableProviders = _downloadClientFactory.GetAvailableProviders().Where(v => v.Protocol == downloadProtocol).ToList();
if (!availableProviders.Any())
{
return(null);
}
if (indexerId > 0)
{
var indexer = _indexerFactory.Find(indexerId);
if (indexer != null && indexer.DownloadClientId > 0)
{
var client = availableProviders.SingleOrDefault(d => d.Definition.Id == indexer.DownloadClientId);
return(client ?? throw new DownloadClientUnavailableException($"Indexer specified download client is not available"));
}
}
var blockedProviders = new HashSet <int>(_downloadClientStatusService.GetBlockedProviders().Select(v => v.ProviderId));
if (blockedProviders.Any())
{
var nonBlockedProviders = availableProviders.Where(v => !blockedProviders.Contains(v.Definition.Id)).ToList();
if (nonBlockedProviders.Any())
{
availableProviders = nonBlockedProviders;
}
else
{
_logger.Trace("No non-blocked Download Client available, retrying blocked one.");
}
}
// Use the first priority clients first
availableProviders = availableProviders.GroupBy(v => (v.Definition as DownloadClientDefinition).Priority)
.OrderBy(v => v.Key)
.First().OrderBy(v => v.Definition.Id).ToList();
var lastId = _lastUsedDownloadClient.Find(downloadProtocol.ToString());
var provider = availableProviders.FirstOrDefault(v => v.Definition.Id > lastId) ?? availableProviders.First();
_lastUsedDownloadClient.Set(downloadProtocol.ToString(), provider.Definition.Id);
return(provider);
}
