import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import {
  Message,
  MESSAGE_TO_CLIENT,
  MESSAGE_TO_SERVER,
} from '@chat-room/api-interfaces';
import { Socket } from 'ngx-socket-io';

@Injectable({
  providedIn: 'root',
})
export class MessagesService {
  constructor(private socket: Socket) {}

  addMessage(message: Message): void {
    this.socket.emit(MESSAGE_TO_SERVER, message);
  }

  getMessages(): Observable<Message[]> {
    return this.socket.fromEvent<Message[]>(MESSAGE_TO_CLIENT);
  }
}