email_utils.py

# Standard
import smtplib

# External
import nikocraft as nc

# Local
from configs import MainConfig


ERROR_EMAIL = """
! ATTENTION !

A critical error occurred on Makerspace Arcade! The system should \
restart automatically. Please take a look at the system!

-----------------------------------------
TIME

%TIME%
-----------------------------------------
ERROR MESSAGE

%ERROR%
-----------------------------------------

* This email was automatically generated by Makerspace Arcade.
"""


def send(server: smtplib.SMTP, sender: str, target: str, subject: str, content: str) -> None:

    data = f"From:{sender}\nTo:{target}\nSubject:{subject}\n\n{content}"

    server.sendmail(sender, target, data)


def send_error(config: MainConfig, error_message: str) -> None:

    try:

        print("Send emails ...")

        with smtplib.SMTP_SSL(config.email_server_address, port=config.email_server_port) as server:

            server.login(config.email_server_user, config.email_server_password)

            content = ERROR_EMAIL.replace("%TIME%", nc.time.datetime_f_dmy_hms()).replace("%ERROR%", error_message)
            for target in config.email_targets:
                send(server, config.email_sender, target, "CRITICAL ERROR - Msp Arcade", content)

        print("Emails sent successfully.")

    except Exception as e:
        print("Sending emails failed!")
        print(f"{type(e).__name__}: {e}")