# -*- coding: utf-8 -*-
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.utils import formataddr
from typing import List


class SendMail(object):

    host, port = "smtp.gmail.com", 465
    username = "youraddress@gmail.com"
    password = "your_app_password"
    sender = formataddr(("Your Name", "youraddress@gmail.com"))

    def __init__(self):
        try:
            self.server = smtplib.SMTP_SSL(self.host, self.port)
            self.server.ehlo()
            self.server.login(self.username, self.password)
            print("Connected to GMail server")
        except Exception as err:
            print(f"Error connecting to server: {str(err)}")

    def __del__(self):
        try:
            self.server.close()
            print("Connection closed")
        except Exception as err:
            print(f"Error occurred while closing connection: {str(err)}")

    def send(self, receivers: List[str], subject: str, body: str, subtype: str = "html") -> bool:
        try:
            message = MIMEMultipart("alternative")
            message["To"] = ", ".join(receivers)
            message["From"] = self.sender
            message["Subject"] = subject
            message.attach(MIMEText(body, subtype))
            self.server.sendmail(self.sender, receivers, message.as_string())
            print("Email sent")
            return True
        except Exception as err:
            print(f"Error occurred while sending email: {str(err)}")
            return False