package launchserver.response.update;

import java.io.IOException;
import java.util.Collection;

import launcher.client.ClientProfile;
import launcher.helper.SecurityHelper;
import launcher.request.RequestException;
import launcher.serialize.HInput;
import launcher.serialize.HOutput;
import launcher.serialize.signed.SignedBytesHolder;
import launcher.serialize.signed.SignedObjectHolder;
import launchserver.LaunchServer;
import launchserver.response.Response;

public final class LauncherResponse extends Response {
	public LauncherResponse(LaunchServer server, HInput input, HOutput output) {
		super(server, input, output);
	}

	@Override
	public void reply() throws IOException {
		// Resolve launcher binary
		SignedBytesHolder bytes = (input.readBoolean() ? server.getEXEBinary() : server.launcherBinary).getBytes();
		if (bytes == null) {
			throw new RequestException("Missing launcher binary");
		}
		writeNoError(output);

		// Update launcher binary
		output.writeByteArray(bytes.getSign(), -SecurityHelper.RSA_KEY_LENGTH);
		output.flush();
		if (input.readBoolean()) {
			output.writeByteArray(bytes.getBytes(), 0);
			return; // Launcher will be restarted
		}

		// Write clients profiles list
		Collection<SignedObjectHolder<ClientProfile>> profiles = server.getProfiles();
		output.writeLength(profiles.size(), 0);
		for (SignedObjectHolder<ClientProfile> profile : profiles) {
			profile.write(output);
		}
	}
}