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package moe.nekojimi.musicsearcher.providers;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CompletableFuture;
import moe.nekojimi.musicsearcher.Result;

/**
 *
 * @author jim
 */
public class MetaSearcher extends Searcher
{
    
    private final Set<Searcher> searchers = new HashSet<>();
    private int minSearchTime = 10000; // ms
    private int maxSearchTime = 30000; // ms

    public MetaSearcher() 
    {
        super("meta");
    }

    @Override
    protected List<Result> doSearch(String query) 
    {
        List<Result> results = new ArrayList<>();
        List<CompletableFuture<List<Result>>> searches = new ArrayList<>();
        for (Searcher searcher: searchers)
        {
            CompletableFuture<List<Result>> search = searcher.search(query);
            searches.add(search);
            search.whenComplete((t, u) -> 
            {
                if (u == null)
                {
                    results.addAll(t);
//                    searches.remove(search);
                }
            });
        }
        CompletableFuture.allOf((CompletableFuture<?>[]) searches.toArray());
        return results;
    }

    
}