let playerText = document.getElementById("playerText")
let restartButton = document.getElementById("restartButton")
let boxes = Array.from(document.getElementsByClassName("box"))
const xText = "X"
const oText = "O"
let currentPlayer = xText
let cells = Array(9).fill(null)
function startGame() {
    for(let i = 0; i < 9; i++) {
        boxes[i].addEventListener('click', boxClicked)
    }
}
function boxClicked(e) {
    let cellsNotEmpty = 0;
    let idx = e.target.id;
    for(let i = 0; i < 9; i++) {
        if(cells[i]) {
            cellsNotEmpty++;
        }
    }
    if(cellsNotEmpty == 9) {
        playerText.innerText = "It is a draw!"
        return
    }
    if(!cells[idx]) {
        cells[idx] = currentPlayer
        e.target.innerText = currentPlayer
        if(playerWon()) {

        }

        if(currentPlayer == xText) {
            currentPlayer = oText
        }
        else {
            currentPlayer = xText
        }
    }
}
function playerWon() {

}
/**
 * winning combos
 * 0, 1, 2
 * 3, 4, 5
 * 6, 7, 8
 * 0, 3, 6
 * 1, 4, 7
 * 2, 5, 8
 * 0, 4, 8
 * 2, 4, 6
 */

startGame();