336 lines
9.6 KiB
PHP
336 lines
9.6 KiB
PHP
<?php
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/**
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* Servicio de WhatsApp - Envío de mensajes
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* Fecha: 13 de noviembre de 2025
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*/
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class WhatsAppService {
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private $token;
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private $phoneNumberId;
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private $apiUrl;
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private $db;
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public function __construct() {
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$this->token = WHATSAPP_TOKEN;
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$this->phoneNumberId = WHATSAPP_PHONE_NUMBER_ID;
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$this->apiUrl = WHATSAPP_API_URL;
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$this->db = Database::getInstance();
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}
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/**
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* Enviar mensaje de texto
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*/
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public function sendTextMessage($to, $message) {
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$data = [
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'messaging_product' => 'whatsapp',
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'to' => $this->formatPhoneNumber($to),
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'type' => 'text',
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'text' => [
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'body' => $message
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]
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];
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return $this->sendMessage($data);
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}
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/**
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* Enviar mensaje con template
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*/
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public function sendTemplateMessage($to, $templateName, $language = 'es', $parameters = []) {
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$template = [
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'name' => $templateName,
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'language' => [
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'code' => $language
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]
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];
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if (!empty($parameters)) {
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$template['components'] = [
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[
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'type' => 'body',
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'parameters' => $parameters
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]
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];
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}
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$data = [
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'messaging_product' => 'whatsapp',
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'to' => $this->formatPhoneNumber($to),
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'type' => 'template',
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'template' => $template
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];
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return $this->sendMessage($data);
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}
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/**
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* Enviar mensaje con botones interactivos
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*/
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public function sendInteractiveMessage($to, $bodyText, $buttons, $header = null, $footer = null) {
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$interactive = [
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'type' => 'button',
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'body' => [
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'text' => $bodyText
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],
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'action' => [
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'buttons' => $buttons
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]
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];
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if ($header) {
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$interactive['header'] = [
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'type' => 'text',
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'text' => $header
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];
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}
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if ($footer) {
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$interactive['footer'] = [
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'text' => $footer
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];
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}
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$data = [
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'messaging_product' => 'whatsapp',
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'recipient_type' => 'individual',
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'to' => $this->formatPhoneNumber($to),
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'type' => 'interactive',
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'interactive' => $interactive
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];
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return $this->sendMessage($data);
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}
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/**
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* Enviar mensaje con lista
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*/
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public function sendListMessage($to, $bodyText, $buttonText, $sections, $header = null, $footer = null) {
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$interactive = [
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'type' => 'list',
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'body' => [
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'text' => $bodyText
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],
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'action' => [
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'button' => $buttonText,
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'sections' => $sections
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]
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];
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if ($header) {
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$interactive['header'] = [
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'type' => 'text',
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'text' => $header
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];
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}
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if ($footer) {
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$interactive['footer'] = [
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'text' => $footer
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];
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}
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$data = [
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'messaging_product' => 'whatsapp',
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'recipient_type' => 'individual',
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'to' => $this->formatPhoneNumber($to),
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'type' => 'interactive',
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'interactive' => $interactive
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];
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return $this->sendMessage($data);
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}
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/**
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* Marcar mensaje como leído
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*/
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public function markAsRead($messageId) {
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$data = [
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'messaging_product' => 'whatsapp',
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'status' => 'read',
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'message_id' => $messageId
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];
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$url = $this->apiUrl . $this->phoneNumberId . '/messages';
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return $this->makeRequest('POST', $url, $data);
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}
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/**
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* Enviar mensaje principal
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*/
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private function sendMessage($data) {
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$url = $this->apiUrl . $this->phoneNumberId . '/messages';
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$response = $this->makeRequest('POST', $url, $data);
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// Guardar mensaje enviado en la base de datos
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if ($response && isset($response['messages'][0]['id'])) {
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$this->saveOutgoingMessage($data, $response);
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}
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return $response;
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}
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/**
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* Realizar petición HTTP
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*/
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private function makeRequest($method, $url, $data = null) {
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$ch = curl_init();
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$headers = [
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'Authorization: Bearer ' . $this->token,
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'Content-Type: application/json',
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'User-Agent: WhatsApp-Bot/1.0'
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];
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curl_setopt_array($ch, [
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CURLOPT_URL => $url,
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_HTTPHEADER => $headers,
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CURLOPT_TIMEOUT => 30,
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CURLOPT_CONNECTTIMEOUT => 10,
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CURLOPT_SSL_VERIFYPEER => true,
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CURLOPT_SSL_VERIFYHOST => 2,
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CURLOPT_FOLLOWLOCATION => true,
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CURLOPT_MAXREDIRS => 3
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]);
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if ($method === 'POST' && $data) {
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curl_setopt($ch, CURLOPT_POST, true);
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curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
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}
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$response = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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$error = curl_error($ch);
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curl_close($ch);
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if ($error) {
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error_log("cURL Error: " . $error);
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throw new Exception("Error de comunicación con WhatsApp: " . $error);
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}
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$decoded = json_decode($response, true);
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if ($httpCode >= 400) {
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$errorMsg = isset($decoded['error']['message']) ? $decoded['error']['message'] : 'Error desconocido';
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error_log("WhatsApp API Error: " . $response);
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throw new Exception("Error de WhatsApp API: " . $errorMsg);
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}
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return $decoded;
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}
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/**
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* Formatear número de teléfono
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*/
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private function formatPhoneNumber($phone) {
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// Remover caracteres especiales
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$phone = preg_replace('/[^0-9]/', '', $phone);
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// Si empieza con +57 (Colombia), mantenerlo
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if (substr($phone, 0, 2) === '57' && strlen($phone) >= 12) {
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return $phone;
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}
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// Si es número colombiano sin código de país
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if (strlen($phone) === 10 && substr($phone, 0, 1) === '3') {
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return '57' . $phone;
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}
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return $phone;
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}
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/**
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* Guardar mensaje enviado en BD
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*/
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private function saveOutgoingMessage($data, $response) {
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try {
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$user = $this->getUserByPhone($data['to']);
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if ($user) {
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$messageData = [
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'user_id' => $user['id'],
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'message_id' => $response['messages'][0]['id'],
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'direction' => 'outgoing',
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'message_type' => $data['type'],
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'content' => $this->extractMessageContent($data),
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'status' => 'sent',
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'created_at' => date('Y-m-d H:i:s')
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];
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$this->db->insert('conversations', $messageData);
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}
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} catch (Exception $e) {
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error_log("Error saving outgoing message: " . $e->getMessage());
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}
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}
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/**
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* Extraer contenido del mensaje para guardar
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*/
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private function extractMessageContent($data) {
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switch ($data['type']) {
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case 'text':
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return $data['text']['body'];
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case 'template':
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return 'Template: ' . $data['template']['name'];
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case 'interactive':
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if (isset($data['interactive']['body']['text'])) {
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return $data['interactive']['body']['text'];
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}
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break;
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}
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return json_encode($data);
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}
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/**
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* Obtener usuario por teléfono
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*/
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private function getUserByPhone($phone) {
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return $this->db->fetch(
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"SELECT * FROM users WHERE phone_number = :phone",
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['phone' => $phone]
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);
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}
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/**
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* Descargar archivo multimedia
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*/
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public function downloadMedia($mediaId) {
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$url = $this->apiUrl . $mediaId;
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// Primero obtener información del archivo
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$mediaInfo = $this->makeRequest('GET', $url);
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if (!$mediaInfo || !isset($mediaInfo['url'])) {
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throw new Exception("No se pudo obtener información del archivo");
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}
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// Descargar el archivo
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$fileUrl = $mediaInfo['url'];
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$ch = curl_init();
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curl_setopt_array($ch, [
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CURLOPT_URL => $fileUrl,
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_HTTPHEADER => [
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'Authorization: Bearer ' . $this->token
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],
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CURLOPT_TIMEOUT => 60,
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CURLOPT_FOLLOWLOCATION => true
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]);
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$fileContent = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($httpCode !== 200) {
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throw new Exception("Error descargando archivo multimedia");
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}
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return [
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'content' => $fileContent,
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'mime_type' => $mediaInfo['mime_type'] ?? 'application/octet-stream',
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'file_size' => $mediaInfo['file_size'] ?? strlen($fileContent)
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];
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}
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}
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?>
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