"""Servicio de envío de correos electrónicos.""" import logging import os import smtplib from email.mime.multipart import MIMEMultipart from email.mime.text import MIMEText from email.mime.base import MIMEBase from email import encoders from typing import Optional logger = logging.getLogger(__name__) def send_email( to: str, subject: str, body_html: str, body_text: str = '', attachments: Optional[list] = None, cc: Optional[list] = None, ) -> bool: """Envía un correo electrónico vía SMTP configurado.""" smtp_host = os.environ.get('SMTP_HOST', 'smtp.gmail.com') smtp_port = int(os.environ.get('SMTP_PORT', '587')) smtp_user = os.environ.get('SMTP_USER', '') smtp_password = os.environ.get('SMTP_PASSWORD', '') smtp_from = os.environ.get('SMTP_FROM', smtp_user) smtp_tls = os.environ.get('SMTP_TLS', 'true').lower() in ('true', '1', 'yes') if not smtp_user or not smtp_password: logger.warning('SMTP no configurado. Email a %s no enviado.', to) return False msg = MIMEMultipart('alternative') msg['From'] = smtp_from msg['To'] = to msg['Subject'] = subject if cc: msg['Cc'] = ', '.join(cc) if body_text: msg.attach(MIMEText(body_text, 'plain', 'utf-8')) msg.attach(MIMEText(body_html, 'html', 'utf-8')) if attachments: for att in attachments: part = MIMEBase('application', 'octet-stream') part.set_payload(att.get('data', b'')) encoders.encode_base64(part) part.add_header('Content-Disposition', f'attachment; filename="{att.get("filename", "file")}"') msg.attach(part) try: if smtp_tls: server = smtplib.SMTP(smtp_host, smtp_port) server.ehlo() server.starttls() else: server = smtplib.SMTP_SSL(smtp_host, smtp_port) server.ehlo() server.login(smtp_user, smtp_password) recipients = [to] + (cc or []) server.sendmail(smtp_from, recipients, msg.as_string()) server.quit() logger.info('Email enviado a %s: %s', to, subject) return True except Exception as e: logger.error('Error enviando email a %s: %s', to, e) return False def send_comprobante_email(to_email: str, clave: str, tipo: str, xml_bytes: bytes = None, empresa_nombre: str = 'MUROTECH') -> bool: """Envía comprobante electrónico por email al cliente.""" subject = f'Comprobante Electrónico {tipo} — {clave[:20]}...' body_html = f'''

{empresa_nombre}

Comprobante Electrónico

Tipo: {tipo}

Clave: {clave}

Adjunto encontrará el comprobante electrónico en formato XML.

Este comprobante fue emitido de acuerdo con la normativa del Ministerio de Hacienda de Costa Rica.

Generado por MUROTECH SaaS — Facturación Electrónica Costa Rica

''' attachments = [] if xml_bytes: attachments.append({'filename': f'{clave}.xml', 'data': xml_bytes}) return send_email(to=to_email, subject=subject, body_html=body_html, attachments=attachments)