<?php
header('Content-Type: application/json');
require_once 'db/config.php';

if (!isset($_GET['sale_id'])) {
    echo json_encode(['error' => 'Sale ID not provided.']);
    exit;
}

$sale_id = $_GET['sale_id'];
$pdo = db();

$stmt = $pdo->prepare("
    SELECT si.quantity, si.price, p.name as product_name
    FROM sale_items si
    JOIN products p ON si.product_id = p.id
    WHERE si.sale_id = ?
");
$stmt->execute([$sale_id]);
$items = $stmt->fetchAll(PDO::FETCH_ASSOC);

echo json_encode($items);