<?php
session_start();
include 'koneksi.php';
header('Content-Type: application/json');

$username = $_POST['username'] ?? '';

if (empty($username)) {
    echo json_encode(['status' => 'empty']);
    exit;
}

try {
    $stmt = $pdo->prepare("SELECT id_account FROM account WHERE username = ?");
    $stmt->execute([$username]);
    if ($stmt->fetch()) {
        echo json_encode(['status' => 'taken']);
    } else {
        echo json_encode(['status' => 'available']);
    }
} catch (PDOException $e) {
    echo json_encode(['status' => 'error', 'message' => $e->getMessage()]);
}
?>