package launcher.request.uuid;

import java.io.IOException;
import java.util.Arrays;

import launcher.Launcher;
import launcher.LauncherAPI;
import launcher.client.PlayerProfile;
import launcher.helper.IOHelper;
import launcher.helper.VerifyHelper;
import launcher.request.Request;
import launcher.serialize.HInput;
import launcher.serialize.HOutput;

public final class BatchProfileByUsernameRequest extends Request<PlayerProfile[]> {
	@LauncherAPI public static final int MAX_BATCH_SIZE = 128;
	private final String[] usernames;

	@LauncherAPI
	public BatchProfileByUsernameRequest(Launcher.Config config, String... usernames) throws IOException {
		super(config);
		this.usernames = Arrays.copyOf(usernames, usernames.length);
		IOHelper.verifyLength(this.usernames.length, MAX_BATCH_SIZE);
		for (String username : this.usernames) {
			VerifyHelper.verifyUsername(username);
		}
	}

	@LauncherAPI
	public BatchProfileByUsernameRequest(String... usernames) throws IOException {
		this(null, usernames);
	}

	@Override
	public Type getType() {
		return Type.BATCH_PROFILE_BY_USERNAME;
	}

	@Override
	protected PlayerProfile[] requestDo(HInput input, HOutput output) throws IOException {
		output.writeLength(usernames.length, MAX_BATCH_SIZE);
		for (String username : usernames) {
			output.writeASCII(username, 16);
		}
		output.flush();

		// Read profiles response
		PlayerProfile[] profiles = new PlayerProfile[usernames.length];
		for (int i = 0; i < profiles.length; i++) {
			profiles[i] = input.readBoolean() ? new PlayerProfile(input) : null;
		}

		// Return result
		return profiles;
	}
}