package envoy.server.processors;

import java.io.IOException;
import java.util.stream.Collectors;

import envoy.data.Contact;
import envoy.event.contact.*;

import envoy.server.data.*;
import envoy.server.net.*;

/**
 * @author Kai S. K. Engelbart
 * @author Maximilian Käfer
 * @since Envoy Server Standalone v0.1-alpha
 */
public final class UserSearchProcessor implements ObjectProcessor<UserSearchRequest> {

	/**
	 * Writes a list of contacts to the client containing all {@link Contact}s matching the search
	 * phrase contained inside the request. The client and their contacts are excluded from the
	 * result.
	 *
	 * @since Envoy Server Standalone v0.1-alpha
	 */
	@Override
	public void process(UserSearchRequest request, long socketID, ObjectWriteProxy writeProxy)
		throws IOException {
		writeProxy.write(socketID,
			new UserSearchResult(PersistenceManager.getInstance()
				.searchUsers(request.get(),
					ConnectionManager.getInstance().getUserIDBySocketID(socketID))
				.stream()
				.map(User::toCommon)
				.collect(Collectors.toList())));
	}
}