// Import required PayPal classes at the beginning
use PayPal\Api\Payer;
use PayPal\Api\Amount;
use PayPal\Api\Item;
use PayPal\Api\ItemList;
use PayPal\Api\Transaction;
use PayPal\Api\Payment;
use PayPal\Api\RedirectUrls;
use PayPal\Auth\OAuthTokenCredential;
use PayPal\Rest\ApiContext;

// PayPal API context setup
$apiContext = new ApiContext(
    new OAuthTokenCredential(
        'AUbibg3Irl5DseZvbOcXpV9PoSI1gMwO4MOvtO2fPb7koBg_czAstXw0_kSvqBMavguV1d_RnVuOfoxo',     // ClientID
        'EK1MYIy-2G91pmoUZfdjejxquyD9LWSx0kpSuz5Arusw63F1w5zFBvXxUeUxZJVj4lUp9uxcWME3mo1b'  // ClientSecret
    )
);
$apiContext->setConfig(['mode' => 'live']); // Set mode to live for production

// Define the item being purchased
$item = new Item();
$item->setName("Aya Blocks Ghana Game App")
     ->setDescription("A fun and educational game app inspired by Ghanaian culture.")
     ->setCurrency("USD")
     ->setQuantity(1)
     ->setPrice("2.99"); // Price per item

// Create an item list and add the item
$itemList = new ItemList();
$itemList->setItems([$item]);

// Define the payment amount
$amount = new Amount();
$amount->setCurrency("USD")->setTotal("2.99");

// Create a transaction and add the item list to it
$transaction = new Transaction();
$transaction->setAmount($amount)
            ->setItemList($itemList)
            ->setDescription("Purchase of Aya Blocks Ghana Game App");

// Set up payer, redirect URLs, and payment
$payer = new Payer();
$payer->setPaymentMethod("paypal");

$redirectUrls = new RedirectUrls();
$redirectUrls->setReturnUrl("https://ayablocks.com/success.php")
             ->setCancelUrl("https://ayablocks.com/cancel.php");

$payment = new Payment();
$payment->setIntent("sale")
        ->setPayer($payer)
        ->setTransactions([$transaction])
        ->setRedirectUrls($redirectUrls);

try {
    // Create the payment on PayPal
    $payment->create($apiContext);
    $approvalUrl = $payment->getApprovalLink();
    header("Location: $approvalUrl");
    exit();
} catch (Exception $ex) {
    echo "Error: " . $ex->getMessage();
    exit();
}