false, 'message'=>'Invalid coupon'];
if($code && $total > 0){
$stmt = $pdo->prepare("SELECT * FROM coupons WHERE code=? AND status=1 LIMIT 1");
$stmt->execute([$code]);
$coupon = $stmt->fetch(PDO::FETCH_ASSOC);
if($coupon){
if($coupon['discount_type'] == 'percent'){
$discount = ($total * $coupon['discount_value']) / 100;
} else {
$discount = $coupon['discount_value'];
}
if($discount > $total) $discount = $total;
$response = [
'success' => true,
'discount' => round($discount, 2),
'coupon' => [
'code' => $coupon['code'],
'type' => $coupon['discount_type'],
'value'=> $coupon['discount_value']
]
];
} else {
$response['message'] = 'Coupon not valid or expired';
}
}
echo json_encode($response);