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/*
* Copyright (C) 2017 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.assisteddialing;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import com.android.dialer.common.LogUtil;
import java.util.Locale;
import java.util.Optional;
// TODO(erfanian): Improve definition of roaming and home country in finalized API.
/**
* LocationDetector is responsible for determining the Roaming location of the User, in addition to
* User's home country.
*/
final class LocationDetector {
private final TelephonyManager telephonyManager;
private final String userProvidedHomeCountry;
LocationDetector(
@NonNull TelephonyManager telephonyManager, @Nullable String userProvidedHomeCountry) {
if (telephonyManager == null) {
throw new NullPointerException("Provided TelephonyManager was null");
}
this.telephonyManager = telephonyManager;
this.userProvidedHomeCountry = userProvidedHomeCountry;
}
// TODO(erfanian): confirm this is based on ISO 3166-1 alpha-2. libphonenumber expects Unicode's
// CLDR
// TODO(erfanian): confirm these are still valid in a multi-sim environment.
/**
* Returns what we believe to be the User's home country. This should resolve to
* PROPERTY_ICC_OPERATOR_ISO_COUNTRY
*/
Optional<String> getUpperCaseUserHomeCountry() {
if (!TextUtils.isEmpty(userProvidedHomeCountry)) {
LogUtil.i(
"LocationDetector.getUpperCaseUserRoamingCountry", "user provided home country code");
return Optional.of(userProvidedHomeCountry.toUpperCase(Locale.US));
}
String simCountryIso = telephonyManager.getSimCountryIso();
if (simCountryIso != null) {
LogUtil.i("LocationDetector.getUpperCaseUserRoamingCountry", "using sim country iso");
return Optional.of(telephonyManager.getSimCountryIso().toUpperCase(Locale.US));
}
LogUtil.i("LocationDetector.getUpperCaseUserHomeCountry", "user home country was null");
return Optional.empty();
}
/** Returns what we believe to be the User's current (roaming) country */
Optional<String> getUpperCaseUserRoamingCountry() {
// TODO Increase coverage of location resolution??
String networkCountryIso = telephonyManager.getNetworkCountryIso();
if (networkCountryIso != null) {
return Optional.of(telephonyManager.getNetworkCountryIso().toUpperCase(Locale.US));
}
LogUtil.i("LocationDetector.getUpperCaseUserRoamingCountry", "user roaming country was null");
return Optional.empty();
}
}
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