#!/usr/bin/python
# -*- coding: utf-8 -*-

# Copyright 2012 Dag Wieers <dag@wieers.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.

DOCUMENTATION = '''
---
author: Dag Wieers
module: email
short_description: Send an email
description:
  - This module is useful for sending emails from playbooks.
  - One may wonder why automate sending emails ? In complex environments
    there are from time to time processes that cannot be automated, either
    because you lack the authority to make it so, or because not everyone
    agrees to a common approach.
  - If you cannot automate a specific step, but the step is non-blocking,
    sending out an email to the responsible party to make him perform his
    part of the bargain is an elegant way to put the responsibility in
    someone else's lap.
  - Of course sending out a mail can be equally useful as a way to notify
    one or more people in a team that a specific action has been
    (successfully) taken.
version_added: "0.8"
options:
  from:
    description:
      - The email-address the mail is sent from.
    default: root
    required: false
  to:
    description:
      - The email-address(es) the mail is being sent to. This is
        a comma-separated list.
    default: root
    required: false
  cc:
    description:
      - The email-address(es) the mail is being copied to. This is
        a comma-separated list.
    required: false
  bcc:
    description:
      - The email-address(es) the mail is being 'blind' copied to. This is
        a comma-separated list.
    required: false
  subject:
    description:
      - The subject of the email being sent.
    aliases: [ msg ]
    required: true
  body:
    description:
      - The body of the email being sent.
    default: $subject
    required: false
examples:
    - description: "Example playbook sending mail to root"
      code: local_action: mail msg="System ${ansible_hostname} has been sucessfully provisioned."
'''

import smtplib

def main():

    module = AnsibleModule(
        argument_spec = dict(
            host = dict(default='localhost'),
            sender = dict(default='root', aliases=['from']),
            to = dict(default='root', aliases=['recipients']),
            cc = dict(default=None),
            bcc = dict(default=None),
            subject = dict(required=True, aliases=['msg']),
            body = dict(default=None),
        )
    )

    host = module.params.get('host')
    sender = module.params.get('sender')
    recipients = module.params.get('to')
    copies = module.params.get('cc')
    blindcopies = module.params.get('bcc')
    subject = module.params.get('subject')
    body = module.params.get('body')

    if not body:
        body = subject

    try:
        smtp = smtplib.SMTP(host)
    except Exception, e:
        module.fail_json(rc=1, msg='Failed to send mail to server %s: %s' % (host, e))

    content = 'From: %s\n' % sender
    content += 'To: %s\n' % recipients
    if copies:
        content += 'Cc: %s\n' % copies
    content += 'Subject: %s\n\n' % subject
    content += body

    addresses = recipients.split(',')
    if copies:
        addresses += copies.split(',')
    if blindcopies:
        addresses += blindcopies.split(',')

    for address in addresses:
        try:
            smtp.sendmail(sender, address, content)
        except Exception, e:
            module.fail_json(rc=1, msg='Failed to send mail to address %s: %s' % (address, e))

    smtp.quit()

    module.exit_json(changed=False)

# this is magic, see lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()