<?php
require_once __DIR__ . '/../db/config.php';

function send_whatsapp_message($phone, $message) {
    if (get_setting('whatsapp_enabled') !== '1') {
        return ['success' => false, 'error' => 'WhatsApp is disabled'];
    }

    $token = get_setting('wablas_token');
    $server = get_setting('wablas_server', 'https://console.wablas.com');
    $security_key = get_setting('wablas_security_key');

    if (empty($token) || empty($server)) {
        return ['success' => false, 'error' => 'Wablas configuration is incomplete'];
    }

    // Clean phone number
    $phone = preg_replace('/[^0-9]/', '', $phone);
    
    $curl = curl_init();
    $data = [
        'phone' => $phone,
        'message' => $message,
    ];

    if (!empty($security_key)) {
        $data['security_key'] = $security_key;
    }

    curl_setopt($curl, CURLOPT_HTTPHEADER, [
        "Authorization: $token",
    ]);
    curl_setopt($curl, CURLOPT_URL,  rtrim($server, '/') . "/api/send-message");
    curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($data));
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl, CURLOPT_TIMEOUT, 10);

    $result = curl_exec($curl);
    $error = curl_error($curl);
    curl_close($curl);

    if ($error) {
        return ['success' => false, 'error' => $error];
    }

    $response = json_decode($result, true);
    if (isset($response['status']) && $response['status'] == true) {
        return ['success' => true, 'response' => $response];
    }

    return ['success' => false, 'error' => $response['message'] ?? 'Unknown error from Wablas'];
}