/*
 * Copyright (C) 2015 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.incallui.util;

import android.net.Uri;
import android.telecom.Call;
import android.telephony.PhoneNumberUtils;

/**
 * Class to provide a standard interface for obtaining information from the underlying
 * android.telecom.Call. Much of this should be obtained through the incall.Call, but
 * on occasion we need to interact with the telecom.Call directly (eg. call blocking,
 * before the incall.Call has been created).
 */
public class TelecomCallUtil {

    // Whether the call handle is an emergency number.
    public static boolean isEmergencyCall(Call call) {
        Uri handle = call.getDetails().getHandle();
        return PhoneNumberUtils.isEmergencyNumber(
                handle == null ? "" : handle.getSchemeSpecificPart());
    }

    public static String getNumber(Call call) {
        if (call == null) {
            return null;
        }
        if (call.getDetails().getGatewayInfo() != null) {
            return call.getDetails().getGatewayInfo()
                    .getOriginalAddress().getSchemeSpecificPart();
        }
        Uri handle = getHandle(call);
        return handle == null ? null : handle.getSchemeSpecificPart();
    }

    public static Uri getHandle(Call call) {
        return call == null ? null : call.getDetails().getHandle();
    }
}