/*
 * Copyright (C) 2019 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.
 */

syntax = "proto3";

package com.android.car.messenger.proto;

option java_package = "com.android.car.messenger.NotificationMsgProto";

message PhoneToCarMessage {
  // The unique key of the message notification, same in phone and car.
  // This will be the StatusBarNotification id of the original message notification posted on the
  // phone.
  string notification_key = 1;

  // Categorizing what type of message this is, so the receiver understands what type of
  // message_data is being sent, and the purpose of the message. The expected message_type(s) with
  // their message_data type (for now) are:
  //    "NEW_CONVERSATION" - ConversationNotification expected,
  //    "NEW_MESSAGE" - MessagingStyleMessageProto expected,
  //    "ACTION_STATUS_UPDATE" - ActionStatusUpdate expected,
  //    "OTHER" - metadata expected.
  //
  // The message_type field is a string and not an enum so that new message types can be added in a
  // backwards compatible way. New message types that require a message_data structure that was
  // introduced in later releases will be put in the metadata field.
  //
  // NOTE: while a message type like "NEW_CONVERSATION" is required to have a
  // ConversationNotification message, it may also have a metadata message as well.
  string message_type = 2;

  oneof message_data {
    ConversationNotification conversation = 3;
    MessagingStyleMessage message = 4;
    ActionStatusUpdate status_update = 5;
  }

  // A byte array containing an undefined message. This field may contain supplemental information
  //  for a message_data, or contain all of the data for the PhoneToCarMessage.
  bytes metadata = 6;
}

message CarToPhoneMessage {
  // The unique key of the message notification, same in phone and car.
  // This will be the StatusBarNotification id of the original message notification posted on the
  // phone.
  string notification_key = 1;

  Action action_request = 2;

  bytes metadata = 3;
}

message ActionStatusUpdate {
  enum Status {
    SUCCESSFUL = 0;
    ERROR = 1;
  }

  // Unique ID of the action
  int64 request_id = 1;

  Status status = 2;

  string error_explanation = 3;
}

// A message notification originating from the user's phone.
message ConversationNotification {

  // Display name of the application that posted this notification.
  string messaging_app_display_name = 1;

  // Package name of the application that posted this notification.
  string messaging_app_package_name = 2;

  MessagingStyle messaging_style = 3;

  // The time, in milliseconds, this message notification was last updated.
  int64 time_ms = 4;

  bytes app_icon = 5;
}

message MessagingStyle {
  repeated MessagingStyleMessage messaging_style_msg = 1;

  string convo_title = 2;

  // String of the user, needed for MessagingStyle
  string user_display_name = 3;

  bool is_group_convo = 4;
}

message MessagingStyleMessage {
  string text_message = 1;

  int64 timestamp = 2;

  Person sender = 3;

  // If the message is read on the phone.
  bool is_read = 4;
}

message Person {
  string name = 1;

  bytes icon = 2;
}

message Action {
  enum ActionName {
    MARK_AS_READ = 0;
    REPLY = 1;
    DISMISS = 2;
  }

  // Same as the PhoneToCar and CarToPhone messages's notification_key.
  // As mentioned above, this notification id should be the same on the phone and the car.
  // This will be the StatusBarNotification id of the original message notification posted on the
  // phone.
  string notification_key = 1;

  //Optional, used to capture data like the reply string.
  repeated ActionDataFieldEntry action_data_field = 2;

  ActionName action_name = 3;

  // Unique id of this action.
  int64 request_id = 4;
}

message ActionDataFieldEntry {
  string key = 1;
  string value = 2;
}