furizon_webint/email_util.py

from sanic import Sanic
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from messages import ROOM_ERROR_TYPES
import smtplib
from messages import *
from config import SMTP_HOST, SMTP_PORT, SMTP_USER, SMTP_PASSWORD
from jinja2 import Environment, FileSystemLoader

async def send_unconfirm_message (room_order, orders):
    memberMessages = []

    issues_plain = ""
    issues_html = "<ul>"

    for err in room_order.room_errors:
        if err in ROOM_ERROR_TYPES.keys():
            issues_plain += f" • {ROOM_ERROR_TYPES[err]}\n"
            issues_html += f"<li>{ROOM_ERROR_TYPES[err]}</li>"
        issues_html += "</ul>"

    for member in orders:
        plain_body = ROOM_UNCONFIRM_TEXT['plain'].format(member.name, room_order.room_name, issues_plain)
        html_body = render_email_template(ROOM_UNCONFIRM_TITLE, ROOM_UNCONFIRM_TEXT['html'].format(member.name, room_order.room_name, issues_html))
        plain_text = MIMEText(plain_body, "plain")
        html_text = MIMEText(html_body, "html")
        message = MIMEMultipart("alternative")
        message.attach(plain_text)
        message.attach(html_text)
        message['Subject'] = '[Furizon] Your room cannot be confirmed'
        message['From'] = 'Furizon <no-reply@furizon.net>'
        message['To'] = f"{member.name} <{member.email}>"
        memberMessages.append(message)

    if len(memberMessages) == 0: return

    with smtplib.SMTP_SSL(SMTP_HOST, SMTP_PORT) as sender:
        sender.login(SMTP_USER, SMTP_PASSWORD)
        for message in memberMessages:
            sender.sendmail(message['From'], message['to'], message.as_string())

def render_email_template(title = "", body = ""):
    tpl = Environment(loader=FileSystemLoader("tpl"), autoescape=False).get_template('email/comunication.html')
    return str(tpl.render(title=title, body=body))