/*
 * 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.voicemail.impl.sms;

import android.app.PendingIntent;
import android.content.Context;
import android.support.annotation.Nullable;
import android.telecom.PhoneAccountHandle;
import com.android.voicemail.impl.OmtpConstants;

/** An implementation of the OmtpMessageSender for T-Mobile. */
public class OmtpCvvmMessageSender extends OmtpMessageSender {
  public OmtpCvvmMessageSender(
      Context context,
      PhoneAccountHandle phoneAccountHandle,
      short applicationPort,
      String destinationNumber) {
    super(context, phoneAccountHandle, applicationPort, destinationNumber);
  }

  @Override
  public void requestVvmActivation(@Nullable PendingIntent sentIntent) {
    sendCvvmMessage(OmtpConstants.ACTIVATE_REQUEST, sentIntent);
  }

  @Override
  public void requestVvmDeactivation(@Nullable PendingIntent sentIntent) {
    sendCvvmMessage(OmtpConstants.DEACTIVATE_REQUEST, sentIntent);
  }

  @Override
  public void requestVvmStatus(@Nullable PendingIntent sentIntent) {
    sendCvvmMessage(OmtpConstants.STATUS_REQUEST, sentIntent);
  }

  private void sendCvvmMessage(String request, PendingIntent sentIntent) {
    StringBuilder sb = new StringBuilder().append(request);
    sb.append(OmtpConstants.SMS_PREFIX_SEPARATOR);
    appendField(sb, "dt" /* device type */, "6" /* no VTT (transcription) support*/);
    sendSms(sb.toString(), sentIntent);
  }
}