import sys
import os

from django.core.management.base import BaseCommand, CommandError
from django.conf import settings
from django.core.mail import send_mail, BadHeaderError, EmailMessage

import datetime
from rowers.models import *
from rowsandall_app.settings import BASE_DIR

import pandas as pd

sys.path.append('$path_to_root_of_project$')
sys.path.append('$path_to_root_of_project$/$project_name$')

os.environ['DJANGO_SETTINGS_MODULE'] = '$project_name$.settings'


def getemails():
    rs = Rower.objects.all()
    firstnames = [r.user.first_name for r in rs]
    lastnames = [r.user.last_name for r in rs]
    emails = [r.user.email for r in rs]
    is_actives = [r.user.is_active for r in rs]
    df = pd.DataFrame({
        'first_name': firstnames,
        'last_name': lastnames,
        'email': emails,
        'is_active': is_actives})

    return df


class Command(BaseCommand):
    def handle(self, *args, **options):
        email_list = getemails()
        email_list.to_csv('email_list.csv', encoding='utf-8')

        fullemail = 'roosendaalsander@gmail.com'
        subject = "Rowsandall users list"
        message = "Dear Sander,\n\n"
        message += "Best Regards, the Rowsandall Team"
        message += "Users list attached \n\n"

        email = EmailMessage(
            subject, message,
            'Rowsandall <info@rowsandall.com>',
            [fullemail])

        email.attach_file('email_list.csv')

        os.remove('email_list.csv')

        _ = email.send()