/*
 * 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 to be sent from the phone SDK to the IHU SDK.
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;

  // The different types of messages to be sent from the phone SDK.
  oneof message_data {
    // Metadata of a new conversation (new in the history of the current
    // connection between phone and IHU SDKs).
    ConversationNotification conversation = 2;
    // Metadata of a new conversation received in an existing conversation.
    MessagingStyleMessage message = 3;
    // Fulfillment update of an action that was requested previously by
    // the IHU SDK.
    ActionStatusUpdate status_update = 4;
    // Metadata of a new sender avatar icon.
    AvatarIconSync avatar_icon_sync = 5;
    // Request to remove all data related to a messaging application.
    ClearAppDataRequest clear_app_data_request = 6;
    // Informs SDK whether this feature has been enabled/disabled.
    FeatureEnabledStateChange feature_enabled_state_change = 7;
    // Details about the connected phone.
    PhoneMetadata phone_metadata = 8;
  }

  // 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 = 9;
}

// Message to be sent from the IHU SDK to the phone SDK.
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;

  // An action request to be fulfilled on the Phone side.
  Action action_request = 2;

  // 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 CarToPhoneMessage.
  bytes metadata = 3;
}

// Message to be sent from the Phone SDK to the IHU SDK after an Action
// has been completed. The request_id in this update will correspond to
// the request_id of the original Action message.
message ActionStatusUpdate {
  // The different result types after completing an action.
  enum Status {
    UNKNOWN = 0;
    SUCCESSFUL = 1;
    ERROR = 2;
  }

  // Unique ID of the action.
  string request_id = 1;

  // The status of completing the action.
  Status status = 2;

  // Optional error message / explanation if the status resulted in an error.
  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 metadata of this conversation.
  MessagingStyle messaging_style = 3;

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

  // Small app icon of the application that posted this notification.
  bytes app_icon = 5;
}

// MessagingStyle metadata that matches MessagingStyle formatting.
message MessagingStyle {
  // List of messages and their metadata.
  repeated MessagingStyleMessage messaging_style_msg = 1;

  // The Conversation title of this conversation.
  string convo_title = 2;

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

  // True if this is a group conversation.
  bool is_group_convo = 4;
}

// Message metadata that matches MessagingStyle formatting.
message MessagingStyleMessage {
  // Contents of the message.
  string text_message = 1;

  // Timestamp of when the message notification was originally posted on the
  // phone.
  int64 timestamp = 2;

  // Details of the sender who sent the message.
  Person sender = 3;

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

// Sends over an avatar icon. This should be sent once per unique sender
// (per unique app) during a phone to car connection.
message AvatarIconSync {
  // Metadata of the person.
  Person person = 1;

  // Display name of the application that posted this notification.
  string messaging_app_display_name = 2;

  // Package name of the application that posted this notification.
  string messaging_app_package_name = 3;
}

// Request to clear all internal data and remove notifications for
// a specific messaging application.
message ClearAppDataRequest {
  // Specifies which messaging app's data to remove.
  string messaging_app_package_name = 1;
}

// Message to inform whether user has disabled/enabled this feature.
message FeatureEnabledStateChange {
  // Enabled state of the feature.
  bool enabled = 1;
}

// Details of the phone that is connected to the IHU.
message PhoneMetadata {
  // MAC address of the phone.
  string bluetooth_device_address = 1;
}

// Metadata about a sender.
message Person {
  // Sender's name.
  string name = 1;

  // Sender's avatar icon.
  bytes avatar = 2;

  // Sender's low-resolution thumbnail
  bytes thumbnail = 3;
}

// Action on a notification, initiated by the user on the IHU.
message Action {
  // Different types of actions user can do on the IHU notification.
  enum ActionName {
    UNKNOWN_ACTION_NAME = 0;
    MARK_AS_READ = 1;
    REPLY = 2;
    DISMISS = 3;
  }

  // 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 MapEntry map_entry = 2;

  // Name of the action.
  ActionName action_name = 3;

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

// Backwards compatible way of supporting a map.
message MapEntry {
  // Key for the map.
  string key = 1;

  // Value that is mapped to this key.
  string value = 2;
}