syntax = "proto3";

package chat;

// What is sent through the wire
message ChatMessagePayload {
  // Message content
  string content = 1;
  // MIME type
  string content_type = 2;
  // Message type
  string message_type = 3;
  // Sender's clock value for message ordering
  double clock_value = 4;
}

// ContactUpdatePayload is sent when a user updates its profile
message ContactUpdatePayload {
  // Contact display name
  string name = 1;
  // Contact profile image, using the data URI scheme (e.g. "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAMAAAC7IEhfAAA...")
  string profile_image = 2;
  // Contact address
  string address = 3;
  // Contact Firebase Cloud Messaging token
  string fcm_token = 4;
}

// Incoming RPC messages
message OneToOneRPC {
  string src = 1;
  string dst = 2;
  bytes payload = 3;
  //ChatMessagePayload payload = 3;
}

message ContactUpdateRPC {
  string src = 1;
  string dst = 2;
  ContactUpdatePayload payload = 3;
}

// Incoming messages
message ChatProtocolMessage {
  bytes payload = 1;
  //oneof payload {
  //  ChatMessagePayload one_to_one_payload = 1;
  //  ContactUpdatePayload contact_updated_payload = 2;
  //}
}