tick.service.ts

import { Injectable, Logger } from '@nestjs/common';
import { ScoreService } from '../score/score.service';
import { InjectRepository } from '@nestjs/typeorm';
import { GameEntity } from 'src/game/game.entity';
import { Repository } from 'typeorm';

@Injectable()
export class TickService {
  constructor(
    private scoreService: ScoreService,
    @InjectRepository(GameEntity)
    private gameRepository: Repository<GameEntity>,
  ) {
    // whenever Tickservice is called, it will start ticktimer
    /* 
    WARNING: multiple calls start multiple timers, 
    if you need to use this service somewhere else remember to call startTimer method from somewhere else
     */
  }

  private logger: Logger = new Logger('TickLogger');
  // tickinterval in milliseconds (10 minutes = 600 000)
  private readonly tickInterval: number = 60000;

  // initializing timer
  async startTimer() {
    this.logger.log('Started timer');
    setInterval(this.Tick, this.tickInterval);
  }

  // returns name and id of each game
  async listGames() {
    const games = await this.gameRepository.find({
      where: { state: 'STARTED' },
    });
    return games.map(game => {
      return game.gameObject();
    });
  }

  // tick score for games with STARTED-status
  Tick = async _ => {
    this.logger.log('Ticking');
    let games = await this.listGames();
    games.map(game => {
      this.scoreService.scoreTick(game.id);
    });
  };
}