customer_webhook/src/webhook.php

<?php
require_once __DIR__ . '/../config/config.php';
require_once __DIR__ . '/Database.php';
require_once __DIR__ . '/WebhookHandler.php';

// Set headers
header('Content-Type: application/json');
header('Access-Control-Allow-Origin: ' . ALLOW_ORIGIN);
header('Access-Control-Allow-Methods: POST');
header('Access-Control-Allow-Headers: Content-Type, X-API-Key');

// Handle preflight requests
if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
    http_response_code(200);
    exit();
}

// Only allow POST requests
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    http_response_code(405);
    echo json_encode(['error' => 'Method not allowed']);
    exit();
}

try {
    // Initialize webhook handler
    $handler = new WebhookHandler();
    
    // Process the webhook
    $result = $handler->process();
    
    // Return success response
    http_response_code(200);
    echo json_encode([
        'success' => true,
        'message' => 'Call record processed successfully',
        'call_id' => $result['call_id'] ?? null
    ]);

} catch (Exception $e) {
    // Log error
    error_log("Webhook Error: " . $e->getMessage());
    
    // Return error response
    http_response_code(500);
    echo json_encode([
        'success' => false,
        'error' => 'Internal server error'
    ]);
}