hasan_cash-register

function checkCashRegister(price, cash, cid) {
  var change = cash - price;
  let moneyList = [ [ 'ONE HUNDRED', 100 ],
                    [ 'TWENTY', 20 ],
                    [ 'TEN', 10 ],
                    [ 'FIVE', 5 ],
                    [ 'ONE', 1 ],
                    [ 'QUARTER', 0.25 ],
                    [ 'DIME', 0.1 ],
                    [ 'NICKEL', 0.05 ],
                    [ 'PENNY', 0.05 ] ]
  let cashInDrawer = cid.map(e=> e[1]).reduce((a,b)=> {return a + b},0)
  let arrChange = []
  if (change < cashInDrawer){
    for (let i=0;i < moneyList.length-1;i++){
      if (change > moneyList[i][1]){
        let a = change - change % moneyList[i][1]
        if (a > cid[cid.length-1-i][1]){
          a = cid[cid.length -1-i][1]
        }
        arrChange.push([moneyList[i][0],parseFloat(a.toFixed(4))] )
        change -= a
      }
    }
      if (arrChange.map(e=> e[1]).reduce((a,b)=>a + b,0) == 0){
      return {status: "INSUFFICIENT_FUNDS", change: []}
      }

    if (change > 0){
      arrChange.push([moneyList[8][0],parseFloat(change.toFixed(2))] )
  }

      return {status: "OPEN", change: arrChange};
    }


  if (change == cashInDrawer){
    return {status: "CLOSED", change: cid}
  }

  return {status: "INSUFFICIENT_FUNDS", change: []}
}
console.log(
checkCashRegister(19.5, 20, [["PENNY", 0.01], ["NICKEL", 0], ["DIME", 0], ["QUARTER", 0], ["ONE", 1], ["FIVE", 0], ["TEN", 0], ["TWENTY", 0], ["ONE HUNDRED", 0]]));