cmc-sales/php/app/views/documents/pdf_po.ctp

<?php
// Generate the Purchase Order PDF by calling the Go service instead of TCPDF/FPDI.

$goBaseUrl = AppController::getGoBaseUrlOrFail();
$goEndpoint = $goBaseUrl . '/go/document/generate/purchase-order';

$outputDir = Configure::read('pdf_directory');

$lineItems = array();
if (isset($document['LineItem']) && is_array($document['LineItem'])) {
    foreach ($document['LineItem'] as $li) {
        $lineItems[] = array(
            'item_number' => isset($li['item_number']) ? $li['item_number'] : '',
            'quantity' => isset($li['quantity']) ? $li['quantity'] : '',
            'title' => isset($li['title']) ? $li['title'] : '',
            'description' => isset($li['description']) ? $li['description'] : '',
            'unit_price' => isset($li['gross_unit_price']) ? floatval($li['gross_unit_price']) : 0.0,
            'total_price' => isset($li['gross_price']) ? floatval($li['gross_price']) : 0.0,
            'net_unit_price' => isset($li['net_unit_price']) ? floatval($li['net_unit_price']) : 0.0,
            'net_price' => isset($li['net_price']) ? floatval($li['net_price']) : 0.0,
            'discount_percent' => isset($li['discount_percent']) ? floatval($li['discount_percent']) : 0.0,
            'discount_amount_unit' => isset($li['discount_amount_unit']) ? floatval($li['discount_amount_unit']) : 0.0,
            'discount_amount_total' => isset($li['discount_amount_total']) ? floatval($li['discount_amount_total']) : 0.0,
            'option' => isset($li['option']) ? intval($li['option']) : 0,
            'has_text_prices' => isset($li['has_text_prices']) ? (bool)$li['has_text_prices'] : false,
            'unit_price_string' => isset($li['unit_price_string']) ? $li['unit_price_string'] : '',
            'gross_price_string' => isset($li['gross_price_string']) ? $li['gross_price_string'] : ''
        );
    }
}

// Get currency info - priority: document currency, then principle's currency, then error
$currencySymbolToUse = null;
$currencyCodeToUse = null;

// First check if document/PO has currency loaded
if (isset($currency['Currency']['symbol']) && isset($currency['Currency']['iso4217'])) {
    $currencySymbolToUse = $currency['Currency']['symbol'];
    $currencyCodeToUse = $currency['Currency']['iso4217'];
}
// Fall back to principle's currency
elseif (isset($principle['Currency']['symbol']) && isset($principle['Currency']['iso4217'])) {
    $currencySymbolToUse = $principle['Currency']['symbol'];
    $currencyCodeToUse = $principle['Currency']['iso4217'];
}
// Last resort - check if variables were set directly
elseif (isset($currencySymbol) && isset($currencyCode)) {
    $currencySymbolToUse = $currencySymbol;
    $currencyCodeToUse = $currencyCode;
}

// Error out if no currency found
if ($currencySymbolToUse === null || $currencyCodeToUse === null) {
    echo "<p style='color: red; font-weight: bold;'>ERROR: No currency information found for this purchase order. Please ensure the document or supplier has a currency set.</p>";
    error_log("PO PDF Generation Error: No currency found for document ID " . $document['Document']['id']);
    exit;
}

$payload = array(
    'document_id' => intval($document['Document']['id']),
    'user_id' => isset($user['User']['id']) ? intval($user['User']['id']) : 0,
    'title' => $document['PurchaseOrder']['title'],
    'issue_date' => $document['PurchaseOrder']['issue_date'],
    'issue_date_string' => isset($issue_date) ? $issue_date : '',
    'principle_name' => isset($principle['Principle']['name']) ? $principle['Principle']['name'] : $document['PurchaseOrder']['ordered_from'],
    'principle_reference' => $document['PurchaseOrder']['principle_reference'],
    'ordered_from' => $document['PurchaseOrder']['ordered_from'],
    'dispatch_by' => $document['PurchaseOrder']['dispatch_by'],
    'deliver_to' => $document['PurchaseOrder']['deliver_to'],
    'shipping_instructions' => $document['PurchaseOrder']['shipping_instructions'],
    'currency_symbol' => $currencySymbolToUse,
    'currency_code' => $currencyCodeToUse,
    'show_gst' => (bool)$gst,
    'subtotal' => isset($totals['subtotal']) ? floatval($totals['subtotal']) : 0.0,
    'gst_amount' => isset($totals['gst']) ? floatval($totals['gst']) : 0.0,
    'total' => isset($totals['total']) ? floatval($totals['total']) : 0.0,
    'line_items' => $lineItems,
    'output_dir' => $outputDir
);

$ch = curl_init($goEndpoint);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$curlErr = curl_error($ch);
curl_close($ch);

if ($httpCode < 200 || $httpCode >= 300) {
    echo "<p>Failed to generate PO PDF via Go service (HTTP $httpCode).";
    if ($curlErr) {
        echo " Error: $curlErr";
    }
    echo "</p>";
    exit;
}

// PDF generated successfully - now save metadata and count pages
$result = json_decode($response, true);
if (isset($result['filename'])) {
    // Build path, removing any double slashes
    $pdfPath = $outputDir . '/' . $result['filename'];
    $pdfPath = preg_replace('#/+#', '/', $pdfPath);
    
    // Update database with PDF metadata
    $Document = ClassRegistry::init('Document');
    $Document->id = $document['Document']['id'];
    $Document->saveField('pdf_filename', $result['filename']);
    $Document->saveField('pdf_created_at', date('Y-m-d H:i:s'));

    // Get user ID safely (match quote/invoice logic) with Basic Auth fallback
    $userId = null;
    $sessionUser = null;
    if (isset($this->Session)) {
        $sessionUser = $this->Session->read('Auth.User');
        $userId = isset($sessionUser['id']) ? $sessionUser['id'] : null;
    }
    if (!$userId && isset($_SESSION['Auth']['User']['id'])) {
        $userId = $_SESSION['Auth']['User']['id'];
    }
    // Fallback: try Basic Auth username/email -> User lookup
    if (!$userId && !empty($_SERVER['PHP_AUTH_USER'])) {
        $User = ClassRegistry::init('User');
        $foundUser = $User->find('first', array(
            'conditions' => array(
                'OR' => array(
                    'User.email' => $_SERVER['PHP_AUTH_USER'],
                    'User.username' => $_SERVER['PHP_AUTH_USER'],
                ),
            ),
            'fields' => array('User.id'),
            'recursive' => -1,
            'order' => 'User.id ASC'
        ));
        if ($foundUser && isset($foundUser['User']['id'])) {
            $userId = $foundUser['User']['id'];
        }
    }

    if ($userId) {
        $Document->saveField('pdf_created_by_user_id', $userId);
    }
    
    // Count pages using the Go service
    App::import('Vendor','pagecounter');
    $pageCounter = new PageCounter();
    $pageCount = $pageCounter->count($pdfPath);
    
    if ($pageCount > 0) {
        $Document->saveField('doc_page_count', $pageCount);
    }
}
?>
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="refresh" content="0;url=/documents/view/<?=$document['Document']['id']?>" />
    <title>Redirecting...</title>
</head>
<body>
    <p>PDF generated successfully. Redirecting back to purchase order...</p>
    <p><a href="/documents/view/<?=$document['Document']['id']?>">Click here if not redirected</a></p>
    <script type="text/javascript">
        window.location.replace("/documents/view/<?=$document['Document']['id']?>");
    </script>
</body>
</html>