import { Protocol } from './protocol';

export enum EMessageType {
  message = 'message',
  roomJoin = 'room_join',
  roomLeave = 'room_leave',
  roomKick = 'room_kick',
  nameChange = 'name_change',
  edit = 'edit',
  protocolStart = 'protocol_start',
  protocolExit = 'protocol_exit',
  custom = 'custom'
}

/**
 * Message target specification. ID and name are mandatory,
 * and they could be the same, depending on the protocol.
 */
export interface IMessageTarget {
  id: string;
  name: string;
  server?: string;
}

/**
 * Message format
 */
export interface IMessage {
  /**
   * Uniquely identify this message
   */
  id?: any;
  /**
   * Type of the message. See EMessageType
   */
  type: EMessageType;
  /**
   * Data included in the message. Could be an object or a string.
   * Use `text` to get text value.
   */
  data: any;
  /**
   * Text value of the message.
   */
  text: string;
  /**
   * Source protocol of the message.
   */
  source: Protocol;
  /**
   * If the sender has not registered themselves.
   * Applicable to, for example, NickServ of IRC.
   */
  guest?: boolean;
  /**
   * The room where the message was sent in.
   */
  target?: IMessageTarget;
  /**
   * Information about the sender.
   */
  sender?: IMessageTarget;
  /**
   * Full ID of the sender (`plugin/protocol/id`).
   */
  fullSenderID?: string;
  /**
   * Full ID of the room (`plugin/protocol/(s:server)/id`).
   */
  fullRoomID?: string;
  /**
   * The time the message was sent.
   */
  time: Date;
  /**
   * True if the message is a direct message to the bot.
   */
  direct?: boolean;
  /**
   * True when resolve has been called at least once.
   */
  resolved: boolean;
  /**
   * Bot's response to this message. Will be passed to the protocol,
   * which usually sends it through the formatter and then to the service
   * it is connected to.
   * @param args Message data
   */
  resolve(...args: any[]): void;
  /**
   * Bot's error response to this message. Will be passed to the protocol,
   * which usually sends `error.message` directly to the target of the message
   * @param error Error
   */
  reject(error: Error): void;
  /**
   * Insert a mention into the response
   * @param target UserTarget to mention (i.e. `msg.sender`)
   */
  mention(target: IMessageTarget): string;
  /**
   * Same as `resolve`, but replies (on supported protocols) instead.
   * @param args Message data
   */
  reply?(...args: any[]): void;
}