/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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 com.android.dialer.location;

import android.content.Context;
import com.google.i18n.phonenumbers.NumberParseException;
import com.google.i18n.phonenumbers.PhoneNumberUtil;
import com.google.i18n.phonenumbers.Phonenumber;
import com.google.i18n.phonenumbers.geocoding.PhoneNumberOfflineGeocoder;
import java.util.Locale;

/** Static methods related to Geo. */
public class GeoUtil {

  /** @return the ISO 3166-1 two letters country code of the country the user is in. */
  public static String getCurrentCountryIso(Context context) {
    // The {@link CountryDetector} should never return null so this is safe to return as-is.
    return CountryDetector.getInstance(context).getCurrentCountryIso();
  }

  public static String getGeocodedLocationFor(Context context, String phoneNumber) {
    final PhoneNumberOfflineGeocoder geocoder = PhoneNumberOfflineGeocoder.getInstance();
    final PhoneNumberUtil phoneNumberUtil = PhoneNumberUtil.getInstance();
    try {
      final Phonenumber.PhoneNumber structuredPhoneNumber =
          phoneNumberUtil.parse(phoneNumber, getCurrentCountryIso(context));
      final Locale locale = context.getResources().getConfiguration().locale;
      return geocoder.getDescriptionForNumber(structuredPhoneNumber, locale);
    } catch (NumberParseException e) {
      return null;
    }
  }
}