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Viewing / Editing File: whatsapp.php

<?php
/**
 * WhatsApp Integration Library
 * مكتبة إرسال رسائل واتساب
 */

class WhatsAppService {
    private $db;
    private $apiUrl;
    private $apiToken;

public function __construct() {
        $this->db = Database::getInstance();
        $this->loadSettings();
    }

private function loadSettings() {
        $sql = "SELECT setting_value FROM settings WHERE setting_key = ?";

$urlResult = $this->db->query($sql, ['whatsapp_api_url'])->fetch();
        $tokenResult = $this->db->query($sql, ['whatsapp_api_token'])->fetch();

$this->apiUrl = $urlResult['setting_value'] ?? '';
        $this->apiToken = $tokenResult['setting_value'] ?? '';
    }

public function isConfigured() {
        return !empty($this->apiUrl) && !empty($this->apiToken);
    }

public function sendInvoiceMessage($customerName, $customerPhone, $invoiceAmount, $totalDebt) {
        $message = "تم إنشاء فاتورة جديدة بقيمة " . number_format($invoiceAmount, 2) . " جنيه للعميل " . $customerName . ". ";
        $message .= "إجمالي المديونية الحالية: " . number_format($totalDebt, 2) . " جنيه. ";
        $message .= "— حسابات عربية بن فريش";

return $this->sendMessage($customerPhone, $message);
    }

public function sendPaymentMessage($customerName, $customerPhone, $paymentAmount, $previousDebt, $newDebt) {
        $message = "تم استلام سداد بقيمة " . number_format($paymentAmount, 2) . " جنيه من العميل " . $customerName . ". ";
        $message .= "المديونية السابقة: " . number_format($previousDebt, 2) . " جنيه، ";
        $message .= "المديونية الجديدة: " . number_format($newDebt, 2) . " جنيه. ";
        $message .= "— حسابات عربية بن فريش";

return $this->sendMessage($customerPhone, $message);
    }

private function sendMessage($phone, $message) {
        if (!$this->isConfigured()) {
            error_log("WhatsApp API not configured");
            return false;
        }

$phone = $this->formatPhone($phone);

$data = [
            'phone' => $phone,
            'message' => $message
        ];

try {
            $ch = curl_init($this->apiUrl);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
            curl_setopt($ch, CURLOPT_HTTPHEADER, [
                'Content-Type: application/json',
                'Authorization: Bearer ' . $this->apiToken
            ]);

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

if ($httpCode >= 200 && $httpCode < 300) {
                return true;
            } else {
                error_log("WhatsApp API error: HTTP $httpCode - Response: $response");
                return false;
            }
        } catch (Exception $e) {
            error_log("WhatsApp send error: " . $e->getMessage());
            return false;
        }
    }

private function formatPhone($phone) {
        $phone = preg_replace('/[^0-9+]/', '', $phone);

if (strpos($phone, '+') !== 0) {
            $phone = '+' . $phone;
        }

return $phone;
    }
}

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