"""Branded HTML email helpers for sales notifications and client acknowledgements.""" from __future__ import annotations import logging import re from django.conf import settings from django.core.mail import EmailMultiAlternatives from django.template.loader import render_to_string logger = logging.getLogger(__name__) def _plain_from_html(html: str) -> str: text = re.sub(r'(?is)<(script|style).*?>.*?()', ' ', html) text = re.sub(r'(?is)', '\n', text) text = re.sub(r'(?is)

', '\n\n', text) text = re.sub(r'(?is)', '\n', text) text = re.sub(r'(?is)', '\n', text) text = re.sub(r'(?is)<.*?>', ' ', text) text = re.sub(r'[ \t]+\n', '\n', text) text = re.sub(r'\n{3,}', '\n\n', text) text = re.sub(r'[ \t]{2,}', ' ', text) return text.strip() def _send_html_email( *, subject: str, html: str, to: list[str], reply_to: list[str] | None = None, ) -> bool: plain = _plain_from_html(html) try: msg = EmailMultiAlternatives( subject=subject, body=plain, from_email=settings.DEFAULT_FROM_EMAIL, to=to, reply_to=reply_to or None, ) msg.attach_alternative(html, 'text/html') sent = msg.send(fail_silently=False) logger.info('Email sent=%s to=%s subject=%s', sent, to, subject) return bool(sent) except Exception: logger.exception('Failed sending email to %s', to) return False def notify_sales_inquiry(inquiry) -> bool: """Styled sales lead email with customer + service details.""" phone_digits = re.sub(r'\D', '', inquiry.phone or '') if phone_digits.startswith('0') and len(phone_digits) == 10: phone_digits = '254' + phone_digits[1:] elif phone_digits.startswith('254'): pass elif len(phone_digits) == 9: phone_digits = '254' + phone_digits html = render_to_string( 'website/email/sales_lead.html', { 'inquiry': inquiry, 'whatsapp_url': f'https://wa.me/{phone_digits}' if len(phone_digits) >= 11 else '', }, ) subject = f"New lead: {inquiry.name} — {inquiry.get_service_display()}" email = (inquiry.email or '').strip() reply_to = None if email and '@' in email and not ( email.startswith('chat-lead+') and email.endswith('@sphereflux.co.ke') ): reply_to = [email] return _send_html_email( subject=subject, html=html, to=[settings.SALES_EMAIL or settings.CONTACT_NOTIFY_EMAIL], reply_to=reply_to, ) def send_client_acknowledgement(inquiry) -> bool: """Styled acknowledgement email to the customer.""" to_email = (getattr(inquiry, 'email', None) or '').strip() if not to_email: return False if to_email.startswith('chat-lead+') and to_email.endswith('@sphereflux.co.ke'): return False html = render_to_string('website/email/client_ack.html', {'inquiry': inquiry}) return _send_html_email( subject='We received your Sphereflux inquiry', html=html, to=[to_email], reply_to=[settings.SALES_EMAIL], ) # Backwards-compatible wrappers used by older call sites def notify_sales(subject: str, body: str, reply_to: str | None = None) -> bool: """Plain fallback notify (prefer notify_sales_inquiry).""" html = f"""
{subject}
{body}
Sphereflux Limited · sales@sphereflux.co.ke · 0718 679 683
""" return _send_html_email( subject=subject, html=html, to=[settings.SALES_EMAIL or settings.CONTACT_NOTIFY_EMAIL], reply_to=[reply_to] if reply_to else None, )