Rahoot/packages/socket/src/utils/game.ts

import { Socket } from "@rahoot/common/types/game/socket"
import Game from "@rahoot/socket/services/game"
import Registry from "@rahoot/socket/services/registry"

export const withGame = (
  gameId: string | undefined,
  socket: Socket,
  callback: (_game: Game) => void
): void => {
  if (!gameId) {
    socket.emit("game:errorMessage", "Game not found")

    return
  }

  const registry = Registry.getInstance()
  const game = registry.getGameById(gameId)

  if (!game) {
    socket.emit("game:errorMessage", "Game not found")

    return
  }

  callback(game)
}

export const createInviteCode = (length = 6) => {
  let result = ""
  const characters = "0123456789"
  const charactersLength = characters.length

  for (let i = 0; i < length; i += 1) {
    const randomIndex = Math.floor(Math.random() * charactersLength)
    result += characters.charAt(randomIndex)
  }

  return result
}

export const timeToPoint = (startTime: number, secondes: number): number => {
  let points = 1000

  const actualTime = Date.now()
  const tempsPasseEnSecondes = (actualTime - startTime) / 1000

  points -= (1000 / secondes) * tempsPasseEnSecondes
  points = Math.max(0, points)

  return points
}