const serverConfig = require('../../config/serverConfig.js') // Server Config
const wrtColor = require('../common/wrtColor')
// const { sleep } = require('./common/sleep')

function filterExpired(player) {
  // let diff = ((new Date())-player.lastActivity)
  // console.log(`${player.username} diff: ${diff}`)
  if (((new Date())-player.lastActivity) <= serverConfig.playerExpiration) {
    return player
  } else {
    // console.log(`Expired Session: ${player.username}`)
    wrtColor.magenta(`Expired Session: ${player.username}`)
  }
}

function playerCleanup (state) {
  // setInterval(function() { //<--This works, but I'm concerned about Memory Leak. I need to learn more.
  //   console.log(state)
  //   state.players = state.players.filter(checkExpired)
  // }, serverConfig.cleanupInterval)
  
  //setTimeout Version self-calling function
  let timerId = setTimeout(function tick() {
    // console.log(state)
    state.players = state.players.filter(filterExpired)
    timerId = setTimeout(tick, serverConfig.cleanupInterval)
  }, serverConfig.cleanupInterval)
}

module.exports = {
  playerCleanup: playerCleanup
}