<?php
require_once dirname(__DIR__) . '/helpers/UrlHelper.php';

class NotificationHelper {
    /**
     * Send a Matrix webhook notification for a new ticket.
     *
     * @param string $ticketId   Ticket ID (9-digit string)
     * @param array  $ticketData Ticket fields (title, priority, category, type, status, ...)
     * @param string $trigger    'manual' (web UI) or 'automated' (API)
     */
    public static function sendTicketNotification($ticketId, $ticketData, $trigger = 'manual') {
        $webhookUrl = $GLOBALS['config']['MATRIX_WEBHOOK_URL'] ?? null;
        if (empty($webhookUrl)) {
            return;
        }

        // Parse notify users from config (comma-separated Matrix user IDs)
        $notifyRaw = $GLOBALS['config']['MATRIX_NOTIFY_USERS'] ?? '';
        $notifyUsers = array_values(array_filter(array_map('trim', explode(',', $notifyRaw))));

        // Extract hostname from [hostname] prefix in title
        preg_match('/^\[([^\]]+)\]/', $ticketData['title'] ?? '', $m);
        $source = $m[1] ?? ($trigger === 'automated' ? 'Automated' : 'Manual');

        $payload = [
            'ticket_id'    => $ticketId,
            'title'        => $ticketData['title']    ?? 'Untitled',
            'priority'     => (int)($ticketData['priority'] ?? 4),
            'category'     => $ticketData['category'] ?? 'General',
            'type'         => $ticketData['type']     ?? 'Issue',
            'status'       => $ticketData['status']   ?? 'Open',
            'source'       => $source,
            'url'          => UrlHelper::ticketUrl($ticketId),
            'trigger'      => $trigger,
            'notify_users' => $notifyUsers,
        ];

        $ch = curl_init($webhookUrl);
        curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);

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

        if ($curlError) {
            error_log("Matrix webhook cURL error for ticket #{$ticketId}: {$curlError}");
        } elseif ($httpCode < 200 || $httpCode >= 300) {
            error_log("Matrix webhook failed for ticket #{$ticketId}. HTTP {$httpCode}: {$response}");
        }
    }
}
?>