syntax = "proto3";
import "google/protobuf/timestamp.proto";
import "google/protobuf/struct.proto";

option go_package = "github.com/onehub/protos";
package onehub.v1;

// Artists perform/play/sing songs
message Topic {
  google.protobuf.Timestamp created_at = 1;
  google.protobuf.Timestamp updated_at = 2;

  // ID of the topic
  string id = 3;

  // ID of the user that created this topic
  string creator_id = 4;
  
  // A unique name of the topic that users can use to connect to
  string name = 5;

  // IDs of users in this topic.   Right now no information about
  // their participation is kept.
  repeated string users = 6;
}

/**
 * An individual message in a topic
 */
message Message {
  /**
   * When the message was created on the server.
   */
  google.protobuf.Timestamp created_at = 1;

  /**
   * When the message or its body were last modified (if modifications are
   * possible).
   */
  google.protobuf.Timestamp updated_at = 2;

  /**
   * ID of the message guaranteed to be unique within a topic.
   * Set only by the server and cannot be modified.
   */
  string id = 3;

  /**
   * User sending this message.
   */
  string user_id = 4;

  /**
   * Topic the message is part of.  This is only set by the server
   * and cannot be modified.
   */
  string topic_id = 5;

  /**
   * Content type of the message. Can be like a ContentType http
   * header or something custom like shell/command
   */
  string content_type = 6;

  /**
   * A simple way to just send text.
   */
  string content_text = 7;

  // Raw contents for data stored locally as JSON
  // Note we can have a combination of text, url and data
  // to show different things in the View/UI
  google.protobuf.Struct content_data = 8;
}