protected override async Task QueryAsync(IQuery query, CancellationToken ct)
{
if (string.IsNullOrWhiteSpace(query.Argument))
{
var fallbacks = WikipediaResult.CreateFallback(_config.BaseUrls);
Available(fallbacks);
return;
}
var queryTasks = _clients
.Select(client => QueryWikipediaAsync(client, query.Argument, ct))
.ToList();
await Task.WhenAll(queryTasks);
ct.ThrowIfCancellationRequested();
var results = queryTasks.SelectMany(q => q.Result.Suggestions);
if (query is DefaultQuery)
{
results = results.Take(3);
}
if (results.Any() || query is DefaultQuery)
{
Available(WikipediaResult.Create(results));
}
else
{
var searchResults = WikipediaResult.CreateSearch(Encode(query.Argument), _config.BaseUrls);
Available(searchResults);
}
}
public async Task <IEnumerable <QueryResult> > QueryAsync(Query query, CancellationToken ct)
{
if (string.IsNullOrWhiteSpace(query.Argument))
{
return(WikipediaResult.CreateFallback(_config.BaseUrls));
}
var queryTasks = new List <Task <IEnumerable <QueryResult> > >();
foreach (var url in _config.BaseUrls)
{
var searchTask = QueryWikipediaAsync(url, query.Argument, ct);
queryTasks.Add(searchTask);
}
await Task.WhenAll(queryTasks);
var results = queryTasks.SelectMany(q => q.Result).ToList();
if (!results.Any())
{
return(WikipediaResult.CreateSearch(Encode(query.Argument), _config.BaseUrls));
}
return(results);
}
