<?php
// Include the configuration file, this contains settings you can change.
include '/custom/settings/config.php';
// Include functions and connect to the database using PDO MySQL
include 'functions.php';

//+++++++++++++++++++++++++++++++++++++++++++++++++++++
//LOGIN TO API
//+++++++++++++++++++++++++++++++++++++++++++++++++++++
$data = json_encode(array("clientID" => clientID, "clientsecret" => clientsecret), JSON_UNESCAPED_UNICODE);
$responses = ioAPIv2('/v2/authorization', $data,'');
//Decode Payload
if (!empty($responses)){$responses = json_decode($responses,true);}else{$responses = '400';}
$clientsecret = $responses['token'];

// 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'){

        //+++++++++++++++++++++++++++++++++++++++++++++++++++++
        //UPDATE THE PAYMENT STATUS
        //+++++++++++++++++++++++++++++++++++++++++++++++++++++
        $payload = json_encode(array("txn_id" => $orderId, "payment_status" => 1,"giftcard_categoryID" => giftcard_id), JSON_UNESCAPED_UNICODE);
        $transaction = ioAPIv2('/v2/transactions/',$payload,$clientsecret);
        $transaction = json_decode($transaction,true);
        
        if ($transaction !== null && !empty($transaction)) {
            
            if(count($transaction) > 0) {

            //++++++++++++++++++++++++++++++++++++++++++++++++++++++
            //Generate INVOICE RECORD
            //++++++++++++++++++++++++++++++++++++++++++++++++++++++
            $payload = json_encode(array("txn_id" => $transaction['transaction_id']), JSON_UNESCAPED_UNICODE);
            $invoice = ioAPIv2('/v2/invoice/',$payload,$clientsecret);
            $invoice = json_decode($invoice,true);

                if ($invoice !== null && !empty($invoice)) {
                    //++++++++++++++++++++++++++++++++++++++++++++++++++++++
                    //Generate INVOICE TO CUSTOMER
                    //++++++++++++++++++++++++++++++++++++++++++++++++++++++
                    $invoice_cust = ioAPIv2('/v2/invoice/list=invoice&id='.$invoice['invoice_id'],'',$clientsecret);
                    $invoice_cust = json_decode($invoice_cust,true);

                    //++++++++++++++++++++++++++++++++++++++++++++++++++++++
                    //Send the invoice when status is Paid
                    //++++++++++++++++++++++++++++++++++++++++++++++++++++++
                    list($data,$customer_email,$order_id) = generateInvoice($invoice_cust,$orderId);

                    //CREATE PDF
                    $dompdf->loadHtml($data);
                    // (Optional) Setup the paper size and orientation
                    $dompdf->setPaper('A4', 'portrait');
                
                    // Render the HTML as PDF
                    $dompdf->render();
                    $subject = ($invoice_morval_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);
                    }
                    //++++++++++++++++++++++++++++++++++++++++++++++++++++++
                    //++++++++++++++++++++++++++++++++++++++++++++++++++++++
                }
            }
        }
    } 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;
}


?>