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

<?php
// Generate the Invoice PDF by calling the Go service instead of TCPDF.
error_log("=== pdf_invoice.ctp: Starting invoice PDF generation ===");
error_log("=== pdf_invoice.ctp: Document ID: " . (isset($document['Document']['id']) ? $document['Document']['id'] : 'UNDEFINED') . " ===");

if (!isset($document) || !isset($document['Document'])) {
    error_log("=== pdf_invoice.ctp: ERROR - Document not set in view! ===");
    echo "ERROR: Document data not available in view";
    exit;
}

$goBaseUrl = AppController::getGoBaseUrlOrFail();
$goEndpoint = $goBaseUrl . '/go/api/pdf/generate-invoice';
error_log("=== pdf_invoice.ctp: Go endpoint: " . $goEndpoint . " ===");

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

$lineItems = array();
foreach ($document['LineItem'] as $li) {
    $lineItems[] = array(
        'item_number' => $li['item_number'],
        'quantity' => $li['quantity'],
        'title' => $li['title'],
        'description' => isset($li['description']) ? $li['description'] : '',
        'is_html' => true, // Description is always HTML
        'unit_price' => floatval($li['gross_unit_price']),
        'total_price' => floatval($li['gross_price']),
        'net_unit_price' => floatval($li['net_unit_price']),
        'net_price' => floatval($li['net_price']),
        'discount_percent' => floatval($li['discount_percent']),
        'discount_amount_unit' => floatval($li['discount_amount_unit']),
        'discount_amount_total' => floatval($li['discount_amount_total']),
        'option' => intval($li['option']),
        'has_text_prices' => isset($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'] : ''
    );
}

$invoiceNumber = '';
if (!empty($document['Document']['cmc_reference'])) {
    $invoiceNumber = $document['Document']['cmc_reference'];
} elseif (!empty($document['Invoice']['title'])) {
    // Fallback so the Go service always receives a number-like value
    $invoiceNumber = $document['Invoice']['title'];
}

// Add fallback logic for missing fields
$invoiceTitle = isset($document['Invoice']['title']) && !empty($document['Invoice']['title']) 
    ? $document['Invoice']['title'] 
    : 'Invoice-' . $document['Document']['id'];

$customerName = 'Customer';
if (isset($enquiry['Customer']['name']) && !empty($enquiry['Customer']['name'])) {
    $customerName = $enquiry['Customer']['name'];
} elseif (isset($document['Document']['cmc_reference']) && !empty($document['Document']['cmc_reference'])) {
    $customerName = $document['Document']['cmc_reference'];
}

// Add fallback logic for all enquiry-dependent fields
$contactEmail = isset($enquiry['Contact']['email']) ? $enquiry['Contact']['email'] : '';
$contactName = '';
if (isset($enquiry['Contact']['first_name']) && isset($enquiry['Contact']['last_name'])) {
    $contactName = $enquiry['Contact']['first_name'] . ' ' . $enquiry['Contact']['last_name'];
}

$userFirstName = isset($enquiry['User']['first_name']) ? $enquiry['User']['first_name'] : '';
$userLastName = isset($enquiry['User']['last_name']) ? $enquiry['User']['last_name'] : '';
$userEmail = isset($enquiry['User']['email']) ? $enquiry['User']['email'] : '';

$yourReference = '';
if (isset($enquiry['Enquiry']['customer_reference']) && !empty($enquiry['Enquiry']['customer_reference'])) {
    $yourReference = $enquiry['Enquiry']['customer_reference'];
} else if (isset($enquiry['Enquiry']['created'])) {
    $yourReference = 'Enquiry on ' . date('j M Y', strtotime($enquiry['Enquiry']['created']));
} else {
    $yourReference = 'Enquiry on ' . date('j M Y');
}

$payload = array(
    'document_id' => intval($document['Document']['id']),
    'invoice_number' => $invoiceNumber,
    'invoice_title' => $invoiceTitle,
    'customer_name' => $customerName,
    'contact_email' => $contactEmail,
    'contact_name' => $contactName,
    'user_first_name' => $userFirstName,
    'user_last_name' => $userLastName,
    'user_email' => $userEmail,
    'your_reference' => $yourReference,
    'ship_via' => $document['Invoice']['ship_via'],
    'fob' => $fob,
    'issue_date' => $document['Invoice']['issue_date'], // expects YYYY-MM-DD
    'issue_date_string' => $issue_date_string,
    'currency_symbol' => $currencySymbol,
    'currency_code' => $currencyCode,
    'show_gst' => (bool)$gst,
    'bill_to' => isset($document['Document']['bill_to']) ? $document['Document']['bill_to'] : '',
    'ship_to' => isset($document['Document']['ship_to']) ? $document['Document']['ship_to'] : '',
    'shipping_details' => isset($document['Document']['shipping_details']) ? $document['Document']['shipping_details'] : '',
    'customer_order_number' => isset($job['Job']['customer_order_number']) ? $job['Job']['customer_order_number'] : '',
    'job_title' => isset($job['Job']['title']) ? $job['Job']['title'] : '',
    'payment_terms' => isset($job['Customer']['payment_terms']) ? $job['Customer']['payment_terms'] : '',
    'customer_abn' => isset($job['Customer']['abn']) ? $job['Customer']['abn'] : '',
    'subtotal' => $totals['subtotal'],
    'gst_amount' => $totals['gst'],
    'total' => $totals['total'],
    '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));

error_log("=== pdf_invoice.ctp: Making curl request to Go service ===");
$response = curl_exec($ch);
error_log("=== pdf_invoice.ctp: Curl response received: " . substr($response, 0, 200) . " ===");
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$curlErr = curl_error($ch);
error_log("=== pdf_invoice.ctp: HTTP Code: " . $httpCode . ", Curl Error: " . $curlErr . " ===");
curl_close($ch);

if ($httpCode < 200 || $httpCode >= 300) {
    echo "<p>Failed to generate PDF via Go service (HTTP $httpCode).<br>";
    echo "Endpoint: " . htmlspecialchars($goEndpoint) . "<br>";
    if ($curlErr) {
        echo "Error: " . htmlspecialchars($curlErr) . "<br>";
    }
    if (!empty($response)) {
        echo "Response: " . htmlspecialchars($response) . "<br>";
    }
    echo "</p>";
    exit;
}

// PDF generated successfully - capture the filename from Go and save to database
$result = json_decode($response, true);
if (isset($result['filename'])) {
    $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
    $userId = null;
    if (isset($this->Session)) {
        $userId = $this->Session->read('Auth.User.id');
    }
    if ($userId) {
        $Document->saveField('pdf_created_by_user_id', $userId);
    }
    
    // Count pages using the Go service
    App::import('Vendor','pagecounter');
    $pageCounter = new PageCounter();
    $pdfPath = $outputDir . '/' . $result['filename'];
    error_log("=== pdf_invoice.ctp: Counting pages for PDF: " . $pdfPath . " ===");
    $pageCount = $pageCounter->count($pdfPath);
    error_log("=== pdf_invoice.ctp: Page count result: " . var_export($pageCount, true) . " ===");
    if ($pageCount !== null && $pageCount > 0) {
        $Document->saveField('doc_page_count', $pageCount);
        error_log("=== pdf_invoice.ctp: Saved page count: " . $pageCount . " ===");
    } else {
        error_log("=== pdf_invoice.ctp: Page count was null or 0, not saving ===");
    }
}

error_log("=== pdf_invoice.ctp: About to redirect to /documents/view/" . $document['Document']['id'] . " ===");
?>
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="refresh" content="0;url=/documents/view/<?=$document['Document']['id']?>">
</head>
<body>
<p>PDF generated successfully. <a href="/documents/view/<?=$document['Document']['id']?>">Click here if you are not redirected</a>.</p>
<script type="text/javascript">
    window.location.replace("/documents/view/<?=$document['Document']['id']?>");
</script>
</body>
</html>