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#!/usr/bin/env python
# encoding: utf-8
from __future__ import unicode_literals, print_function
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
from email.utils import formatdate
from email import encoders


def send_mail(send_from, send_to, subject, text, filename):
    '''
    send_from: str
    send_to: list
    subject: str
    text: str
    filename: file path
    '''

    msg = MIMEMultipart()
    msg['From'] = send_from
    msg['To'] = ', '.join(send_to)
    msg['Date'] = formatdate(localtime=True)
    msg['Subject'] = subject
    msg.attach(MIMEText(text, _subtype='plain', _charset='utf8'))
    # html = '<html><head><title>test</title></head><body>hello</body></html>'
    # msg.attach(MIMEText(html, _subtype='html', _charset='utf8'))
    part = MIMEBase('application', 'octet-stream')
    part.set_payload(open(filename, 'rb').read())
    encoders.encode_base64(part)
    part.add_header('Content-Disposition', 'attachment; filename="{}"'.format(filename))
    msg.attach(part)

    # FIXME: using you smtp server and login information
    server = ''
    port = 587
    username = ''
    password = ''
    conn = get_smtp_conn(server, port, username, password)
    conn.sendmail(send_from, send_to, msg.as_string())
    conn.quit()


def get_smtp_conn(server, port, username, password, isTls=True):
    smtp = smtplib.SMTP(server, port)
    if isTls:
        smtp.starttls()
    smtp.login(username, password)
    return smtp