import {SERVER_LATENCY} from '@/util/constants.js';
import EventEmitter from '@/util/event-emitter.js';

const textDecoder = new TextDecoder();

export default class Server {
  constructor() {
    this.emitter = new EventEmitter();
  }
  accept(connection, packet) {
    this.emitter.invoke(packet.type, connection, packet.payload);
  }
  addPacketListener(type, listener) {
    this.emitter.addListener(type, listener);
  }
  async readJson(path) {
    return JSON.parse(textDecoder.decode(await this.readData(path)));
  }
  removePacketListener(type, listener) {
    this.emitter.removeListener(type, listener);
  }
  send(connection, packet) {
    if (SERVER_LATENCY > 0) {
      setTimeout(() => {
        this.transmit(connection, packet);
      }, SERVER_LATENCY);
    }
    else {
      this.transmit(connection, packet);
    }
  }
}