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

# Copyright 2013 Matt Coddington <coddington@gmail.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 = '''
---
module: flowdock
version_added: "1.2"
author: Matt Coddington
short_description: Send a message to a flowdock
description:
   - Send a message to a flowdock team inbox or chat using the push API (see https://www.flowdock.com/api/team-inbox and https://www.flowdock.com/api/chat)
options:
  token:
    description:
      - API token.
    required: true
  type:
    description:
      - Whether to post to 'inbox' or 'chat'
    required: true
    choices: [ "inbox", "chat" ]
  msg:
    description:
      - Content of the message
    required: true
  tags:
    description:
      - tags of the message, separated by commas
    required: false
  external_user_name:
    description:
      - (chat only - required) Name of the "user" sending the message
    required: false
  from_address:
    description:
      - (inbox only - required) Email address of the message sender
    required: false
  source:
    description:
      - (inbox only - required) Human readable identifier of the application that uses the Flowdock API
    required: false
  subject:
    description:
      - (inbox only - required) Subject line of the message
    required: false
  from_name:
    description:
      - (inbox only) Name of the message sender
    required: false
  reply_to:
    description:
      - (inbox only) Email address for replies
    required: false
  project:
    description:
      - (inbox only) Human readable identifier for more detailed message categorization
    required: false
  link:
    description:
      - (inbox only) Link associated with the message. This will be used to link the message subject in Team Inbox.
    required: false

# informational: requirements for nodes
requirements: [ urllib, urllib2 ]
'''

EXAMPLES = '''
- flowdock: type=inbox
            token=AAAAAA
            from_address=user@example.com
            source='my cool app'
            msg='test from ansible'
            subject='test subject'

- flowdock: type=chat
            token=AAAAAA
            external_user_name=testuser
            msg='test from ansible'
            tags=tag1,tag2,tag3
'''

HAS_URLLIB = True
try:
    import urllib
except ImportError:
    HAS_URLLIB = False

HAS_URLLIB2 = True
try:
    import urllib2
except ImportError:
    HAS_URLLIB2 = False



# ===========================================
# Module execution.
#

def main():

    if not HAS_URLLIB:
        module.fail_json(msg="urllib is not installed")
    if not HAS_URLLIB2:
        module.fail_json(msg="urllib2 is not installed")

    module = AnsibleModule(
        argument_spec=dict(
            token=dict(required=True),
            msg=dict(required=True),
            type=dict(required=True, choices=["inbox","chat"]),
            external_user_name=dict(required=False),
            from_address=dict(required=False),
            source=dict(required=False),
            subject=dict(required=False),
            from_name=dict(required=False),
            reply_to=dict(required=False),
            project=dict(required=False),
            tags=dict(required=False),
            link=dict(required=False),
        ),
        supports_check_mode=True
    )

    type = module.params["type"]
    token = module.params["token"]
    if type == 'inbox':
        url = "https://api.flowdock.com/v1/messages/team_inbox/%s" % (token)
    else:
        url = "https://api.flowdock.com/v1/messages/chat/%s" % (token)
    
    params = {}

    # required params
    params['content'] = module.params["msg"]

    # required params for the 'chat' type
    if module.params['external_user_name']:
        if type == 'inbox':
            module.fail_json(msg="external_user_name is not valid for the 'inbox' type")
        else:
            params['external_user_name'] = module.params["external_user_name"]
    elif type == 'chat':
        module.fail_json(msg="%s is required for the 'inbox' type" % item)

    # required params for the 'inbox' type
    for item in [ 'from_address', 'source', 'subject' ]:
        if module.params[item]:
            if type == 'chat':
                module.fail_json(msg="%s is not valid for the 'chat' type" % item)
            else:
                    params[item] = module.params[item]
        elif type == 'inbox':
            module.fail_json(msg="%s is required for the 'inbox' type" % item)

    # optional params
    if module.params["tags"]:
        params['tags'] = module.params["tags"]

    # optional params for the 'inbox' type
    for item in [ 'from_name', 'reply_to', 'project', 'link' ]:
        if module.params[item]:
            if type == 'chat':
                module.fail_json(msg="%s is not valid for the 'chat' type" % item)
            else:
                params[item] = module.params[item]

    # If we're in check mode, just exit pretending like we succeeded
    if module.check_mode:
        module.exit_json(changed=False)

    # Send the data to Flowdock
    try:
        response = urllib2.urlopen(url, urllib.urlencode(params))
    except Exception, e:
        module.fail_json(msg="unable to send msg: %s" % e)

    module.exit_json(changed=False, msg=module.params["msg"])

# this is magic, see lib/ansible/module_common.py
from ansible.module_utils.basic import *
main()