from flask import Flask, request
import os
import incident
import datetime

app = Flask( __name__ )
app.config.from_envvar( 'FIH_SETTINGS' )

app.mm = incident.Mattermost( url = app.config[ 'MATTERMOST_URL' ],
                              port = app.config[ 'MATTERMOST_PORT' ],
                              login_id = app.config[ 'MATTERMOST_USER_EMAIL' ],
                              password = app.config[ 'MATTERMOST_USER_PASSWORD' ],
                              ).mm

@app.route( '/mattermost/incident', methods = [ 'POST' ] )
def mattermost_incident():
    # channel_name: testing
    # command: /incident
    # channel_id: o3ob1utim3nummoswjyt4174mo
    # user_name: marek
    # test_domain: faelix
    # text: test
    # team_id: 3woo8mbjrbb1in53xwdzi4ynqh
    # user_id: ko3uxmend7ne8ger4uw9mxkt1o
    # token: XXXXXXXXXXXXXXXXXXXXXXXXXX

    if request.form[ 'token' ] in app.config[ 'MATTERMOST_COMMAND_TOKENS' ]:
        incident_number = incident.generate_incident_number()
        fi_number = "FI#" + incident_number
        channel_name = "incident" + incident_number
        purpose = request.form[ 'text' ]

        channel = app.mm.channels.create_channel( options = { "team_id": request.form[ 'team_id' ],
                                                              "name": channel_name,
                                                              "display_name": fi_number,
                                                              "purpose": purpose,
                                                              "header": "",
                                                              "type": "O",
                                                              } )

        # add user to the channel we just created
        app.mm.client.make_request( 'post', '/channels/' + channel[ 'id' ] + '/members', options = { 'user_id': request.form[ 'user_id' ],
                                                                                                     } )
        app.mm.posts.create_post( options = { 'channel_id': channel[ 'id' ],
                                              'message': "Incident discussion channel for [%s](https://status.faelix.net/incident/%s) created by @%s." % ( fi_number, incident_number, request.form[ 'user_name' ] ),
                                              } )

        now = datetime.datetime.utcnow().strftime( "%Y-%m-%dT%H:%M:%S" )

        app.mm.posts.create_post( options = { 'channel_id': channel[ 'id' ],
                                              'message': """\
# Incident Response Communication Procedure

The contents of this channel are strictly confidential.

## Public Announcement

1. adjust the name of the incident with **/purpose**
2. adjust the description of the incident with **/header**
3. choose a front page status (see below)
4. publish https://status.faelix.net/incident/%(incident_number)s with **@FIH PUBLISH**

## Status Updates

* add an update: **@FIH TIMELINE** _text_
* set the incident start: **@FIH START** _%(now)s_ (UTC)
* set the incident ETR: **@FIH ETR** _%(now)s_ (UTC)
* set the incident resolved time: **@FIH RESOLVED** _%(now)s_ (UTC)
* set the incident finished time: **@FIH CLOSED** _%(now)s_ (UTC)

Again, don't forget to **@FIH PUBLISH** once making changes.

## Front Page Status

* **@FIH INCIDENT**
* **@FIH DEGRADED**
* **@FIH MAINTENANCE**
* **@FIH NOTICE**
* **@FIH OK**

Again, after setting the headline status you must: **@FIH PUBLISH**

## Good luck, Incident Commander @%(commander_name)s!""" % { "incident_number": incident_number,
                                                             "commander_name": request.form[ 'user_name' ],
                                                             "now": now,
                                                             },
                                              } )

        app.mm.posts.create_post( options = { 'channel_id': request.form[ 'channel_id' ],
                                              'message': 'On behalf of @%s I have started incident ~%s.' % ( request.form[ 'user_name' ], channel_name, ),
                                              } )

        return ""
    else:
        return "Invalid command token."

@app.route( '/mattermost/fih', methods = [ 'POST' ] )
def mattermost_fig():
    print( repr( request.form ) )
    return "Whaaat?"
    
@app.route( '/' )
def hello_world():
    return 'Hello, World!'