<?php
session_start();
require_once 'db.php';

if (!isset($_SESSION['username'])) {
    echo "NO_SESSION";
    exit;
}

if (!isset($_POST['difficulty'], $_POST['time'])) {
    echo "NO_POST";
    exit;
}

$username   ='testuser';
$difficulty = $_POST['difficulty'];
$time       = (int) $_POST['time'];

$sql = "INSERT INTO leaderboard_sudoku 
        (username, difficulty, time_seconds) 
        VALUES (:username, :difficulty, :time)";

$stmt = $conn->prepare($sql);
$stmt->execute([
    ':username'   => $username,
    ':difficulty' => $difficulty,
    ':time'       => $time
]);

echo "SUCCESS";