import os
import smtplib
import ssl

from config import Config
from email.message import EmailMessage

from config import Config
from log import log

from typing import Any, List


def index_ojects_by_parameter(object_list: List, param: Any):
    """
    Create a dictionary from passed list where each list entry is keyed
    by passed param
    """

    results = {}
    for obj in object_list:
        results[getattr(obj, param)] = obj

    return results


def send_mail(to_addr, from_addr, subj, body):
    # From https://docs.python.org/3/library/email.examples.html

    # Create a text/plain message
    msg = EmailMessage()
    msg.set_content(body)

    msg['Subject'] = subj
    msg['From'] = from_addr
    msg['To'] = to_addr

    # Send the message via SMTP server.
    context = ssl.create_default_context()
    try:
        s = smtplib.SMTP(host=Config.MAIL_SERVER, port=Config.MAIL_PORT)
        if Config.MAIL_USE_TLS:
            s.starttls(context=context)
        if Config.MAIL_USERNAME and Config.MAIL_PASSWORD:
            s.login(Config.MAIL_USERNAME, Config.MAIL_PASSWORD)
        s.send_message(msg)
    except Exception as e:
        print(e)
    finally:
        s.quit()