#!/usr/bin/env python
# -*- coding: utf-8 -*-
# bitmask_cli
# Copyright (C) 2015, 2016 LEAP
#
# This program 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.
#
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
"""
Bitmask Command Line interface: zmq client.
"""
import json
import sys

from colorama import Fore
from twisted.internet import reactor, defer

from leap.bitmask.cli.eip import Eip
from leap.bitmask.cli.keys import Keys
from leap.bitmask.cli.mail import Mail
from leap.bitmask.cli.command import Command
from leap.bitmask.cli.user import User


class BitmaskCLI(Command):
    usage = '''bitmaskctl <command> [<args>]

Controls the Bitmask application.

SERVICE COMMANDS:

  user       Handles Bitmask accounts
  mail       Bitmask Encrypted Mail
  eip        Encrypted Internet Proxy
  keys       Bitmask Keymanager

GENERAL COMMANDS:

  version    prints version number and exit
  launch     launch the Bitmask backend daemon
  shutdown   shutdown Bitmask backend daemon
  status     displays general status about the running Bitmask services
  stats      show some debug info about bitmask-core
  help       show this help message

'''
    epilog = ("Use 'bitmaskctl <command> help' to learn more "
              "about each command.")
    commands = ['shutdown', 'stats']

    def user(self, raw_args):
        user = User()
        return user.execute(raw_args)

    def mail(self, raw_args):
        mail = Mail()
        return mail.execute(raw_args)

    def eip(self, raw_args):
        eip = Eip()
        return eip.execute(raw_args)

    def keys(self, raw_args):
        keys = Keys()
        return keys.execute(raw_args)

    # Single commands

    def launch(self, raw_args):
        # XXX careful! Should see if the process in PID is running,
        # avoid launching again.
        import commands
        commands.getoutput('bitmaskd')
        return defer.succeed(None)

    def version(self, raw_args):
        print(Fore.GREEN + 'bitmask_cli:  ' + Fore.RESET + '0.0.1')
        self.data = ['version']
        return self._send(printer=self._print_version)

    def _print_version(self, version):
        corever = version['version_core']
        print(Fore.GREEN + 'bitmask_core: ' + Fore.RESET + corever)

    def status(self, raw_args):
        self.data = ['status']
        return self._send(printer=self._print_status)

    def _print_status(self, status):
        statusdict = json.loads(status)
        for key, value in statusdict.items():
            color = Fore.GREEN
            if value == 'stopped':
                color = Fore.RED
            print(key.ljust(10) + ': ' + color +
                  value + Fore.RESET)


def execute():
    cli = BitmaskCLI()
    d = cli.execute(sys.argv[1:])
    d.addCallback(lambda _: reactor.stop())


def main():
    reactor.callWhenRunning(reactor.callLater, 0, execute)
    reactor.run()

if __name__ == "__main__":
    main()