/**
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 *
 */

package org.waveprotocol.box.webclient.client;

import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;

import org.waveprotocol.wave.client.debug.logger.DomLogger;
import org.waveprotocol.wave.common.logging.LoggerBundle;

/**
 * Manage locale settings on the server.
 *
 * @author akaplanov@gmail.com (Andrew Kaplanov)
 */
public final class RemoteLocaleService implements LocaleService {

  private static final LoggerBundle LOG = new DomLogger(RemoteLocaleService.class.getName());

  private static final String LOCALE_URL_BASE = "/locale";

  public RemoteLocaleService() {
  }

  @Override
  public void storeLocale(String locale) {
    RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.POST,
        LOCALE_URL_BASE + "/?locale=" + locale);

    LOG.trace().log("Store locale");

    requestBuilder.setCallback(new RequestCallback() {
      @Override
      public void onResponseReceived(Request request, Response response) {
        if (response.getStatusCode() != Response.SC_OK) {
          LOG.error().log("Got back status code " + response.getStatusCode());
        } else {
          LOG.error().log("Locale was stored");
        }
      }

      @Override
      public void onError(Request request, Throwable exception) {
        LOG.error().log("Storing locale error: ", exception);
      }
    });

    try {
      requestBuilder.send();
    } catch (RequestException e) {
      LOG.error().log(e.getMessage());
    }
  }
}