syntax = "proto3";

option go_package = "./;protobuf";
package protobuf;

import "enums.proto";

message StickerMessage {
  string hash = 1;
  int32 pack = 2;
}

message ImageMessage {
  bytes payload = 1;
  ImageType type = 2;
}

message AudioMessage {
  bytes payload = 1;
  AudioType type = 2;
  uint64 duration_ms = 3;
  enum AudioType {
    UNKNOWN_AUDIO_TYPE = 0;
    AAC = 1;
    AMR = 2;
  }
}

message EditMessage {
  uint64 clock = 1;
  // Text of the message
  string text = 2;

  string chat_id = 3;
  string message_id = 4;

  // Grant for community edit messages
  bytes grant = 5;

  // The type of message (public/one-to-one/private-group-chat)
  MessageType message_type = 6;

  ChatMessage.ContentType content_type = 7;
}

message DeleteMessage {
  uint64 clock = 1;

  string chat_id = 2;
  string message_id = 3;

  // Grant for community delete messages
  bytes grant = 4;

  // The type of message (public/one-to-one/private-group-chat)
  MessageType message_type = 5;
}

message DeleteForMeMessage {
  uint64 clock = 1;
  string message_id = 2;
}

message DiscordMessage {
  string id = 1;
  string type = 2;
  string timestamp = 3;
  string timestampEdited = 4;
  string content = 5;
  DiscordMessageAuthor author = 6;
  DiscordMessageReference reference = 7;
  repeated DiscordMessageAttachment attachments = 8;
}

message DiscordMessageAuthor {
  string id = 1;
  string name = 2;
  string discriminator = 3;
  string nickname = 4;
  string avatarUrl = 5;
  bytes avatarImagePayload = 6;
  string localUrl = 7;
}

message DiscordMessageReference {
  string messageId = 1;
  string channelId = 2;
  string guildId = 3;
}

message DiscordMessageAttachment {
  string id = 1;
  string messageId = 2;
  string url = 3;
  string fileName = 4;
  uint64 fileSizeBytes = 5;
  string contentType = 6;
  bytes payload = 7;
  string localUrl = 8;
}

message ChatMessage {
  // Lamport timestamp of the chat message
  uint64 clock = 1;
  // Unix timestamps in milliseconds, currently not used as we use whisper as
  // more reliable, but here so that we don't rely on it
  uint64 timestamp = 2;
  // Text of the message
  string text = 3;
  // Id of the message that we are replying to
  string response_to = 4;
  // Ens name of the sender
  string ens_name = 5;
  // Chat id, this field is symmetric for public-chats and private group chats,
  // but asymmetric in case of one-to-ones, as the sender will use the chat-id
  // of the received, while the receiver will use the chat-id of the sender.
  // Probably should be the concatenation of sender-pk & receiver-pk in
  // alphabetical order
  string chat_id = 6;

  // The type of message (public/one-to-one/private-group-chat)
  MessageType message_type = 7;
  // The type of the content of the message
  ContentType content_type = 8;

  oneof payload {
    StickerMessage sticker = 9;
    ImageMessage image = 10;
    AudioMessage audio = 11;
    bytes community = 12;
    DiscordMessage discord_message = 99;
  }

  // Grant for community chat messages
  bytes grant = 13;

  // Message author's display name, introduced in version 1
  string display_name = 14;

  ContactRequestSignature sent_contact_request_signature = 15;
  ContactRequestSignature received_contact_request_signature = 16;
  bool contact_message = 17;

  enum ContentType {
    UNKNOWN_CONTENT_TYPE = 0;
    TEXT_PLAIN = 1;
    STICKER = 2;
    STATUS = 3;
    EMOJI = 4;
    TRANSACTION_COMMAND = 5;
    // Only local
    SYSTEM_MESSAGE_CONTENT_PRIVATE_GROUP = 6;
    IMAGE = 7;
    AUDIO = 8;
    COMMUNITY = 9;
    // Only local
    SYSTEM_MESSAGE_GAP = 10;
    CONTACT_REQUEST = 11;
    DISCORD_MESSAGE = 12;
  }
}

message ContactRequestSignature {
  bytes signature = 1;
  uint64 timestamp = 2;
}