<?php
// Include the configuration file, this contains settings you can change.
include 'config.php';
// Include functions and connect to the database using PDO MySQL
include 'functions.php';
// Connect to MySQL database
$pdo = pdo_connect_mysql();
// paypal
require_once __DIR__."/lib/paypal/paypal.php";

//error reporting
if (debug){
    ini_set('display_errors', '1');
    ini_set('display_startup_errors', '1');
    error_reporting(E_ALL);  
}
    
//GET PAYPAL TOKEN
$token = $_GET["token"] ?? '';
$base_url = 'https://'.$_SERVER['SERVER_NAME'].'/';
define('base_url', $base_url);

//IF TOKEN IS RETURNED PROCES IT
if($token !=''){
    $base = PAYPAL_URL;
    $id = PAYPAL_CLIENT_ID;
    $secret = PAYPAL_CLIENT_SECRET;

    //CHECK PAYPAL
    $paypal = new paypalCurl();
    $paypal -> init($id,$secret,$base);

    $result = $paypal->verify($token);
    //GET RELATED ORDER
    $orderId = $result->txn ?? '';

    //IF TXN_ID is not empty
    if ($orderId !='' && $result->ref == 'COMPLETED'){
        //CHECK IF ORDER EXISTS
        $stmt = $pdo->prepare('SELECT * FROM transactions WHERE txn_id = ?');
        $stmt->execute([$orderId]);

        if ($stmt->fetch(PDO::FETCH_ASSOC)){
            //TXN EXISTS - UPDATE TO PAID
            $stmt = $pdo->prepare('UPDATE transactions SET payment_status = ? WHERE txn_id = ?');
            $stmt->execute(["Paid",  $orderId]);
            
            //++++++++++++++++++++++++++++++++++++++++++++++++++++++
            //Order is Paid. Create Giftcards when applicable
            //++++++++++++++++++++++++++++++++++++++++++++++++++++++
            createGiftCart($pdo, $orderId);

            //++++++++++++++++++++++++++++++++++++++++++++++++++++++
            //Send the invoice when status is Paid
            //++++++++++++++++++++++++++++++++++++++++++++++++++++++

            list($data,$customer_email,$order_id) = generateInvoice($pdo,$orderId);
            $dompdf->loadHtml($data);
        
            // (Optional) Setup the paper size and orientation
            $dompdf->setPaper('A4', 'portrait');
        
            // Render the HTML as PDF
            $dompdf->render();
            $subject = 'MorvalWatches - Invoice: '.$order_id;
            $attachment = $dompdf->output();
            
            //++++++++++++++++++++++++++++++++++++++++++++++++++++++
            //Send to PHPMailer
            //++++++++++++++++++++++++++++++++++++++++++++++++++++++
            send_mail_by_PHPMailer($customer_email, $subject, $data, $attachment, $subject);
            
            if(invoice_bookkeeping){
                send_mail_by_PHPMailer(email_bookkeeping, $subject, $data, $attachment, $subject);
            }
            //REDIRECT TO PLACEORDER SCREEN
            header('Location: ' . url('index.php?page=placeorder'));
            exit;
        } 
    } else {
        //GET TXN FROM RETURN LINK
        $orderId = $_GET['txn'] ?? '';

        //Cancel Order
        $stmt = $pdo->prepare('UPDATE transactions SET payment_status = ? WHERE txn_id = ?');
        $stmt->execute(["Cancelled",  $orderId]);
        
        //Redirect back to checkout
        header('Location: ' . url('index.php?page=cart'));
        exit;
    }

} else {
    //Redirect back to home
    header('Location: ' . url('index.php?page=home'));
    exit;
}


?>