#!/usr/bin/env python3

"""
Doorlockd -- Binary Kitchen's smart door opener

Copyright (c) Binary Kitchen e.V., 2018

Author:
  Ralf Ramsauer <ralf@binary-kitchen.de>

This work is licensed under the terms of the GNU GPL, version 2.  See
the LICENSE file in the top-level directory.

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.
"""

import logging
import sys

from configparser import ConfigParser
from os.path import abspath, join

from pydoorlock.Authenticator import Authenticator
from pydoorlock.WebApp import webapp_run
from pydoorlock.Doorlock import DoorlockResponse, DoorHandler

SYSCONFDIR = '.'
PREFIX = '.'

__author__ = 'Ralf Ramsauer'
__copyright = 'Copyright (c) Ralf Ramsauer, 2018'
__license__ = 'GPLv2'
__email__ = 'ralf@binary-kitchen.de'
__status__ = 'Development'
__maintainer__ = 'Ralf Ramsauer'
__version__ = '2.0-rc2'

log_level = logging.DEBUG
date_fmt = '%Y-%m-%d %H:%M:%S'
log_fmt = '%(asctime)-15s %(levelname)-8s %(message)s'
log = logging.getLogger()


class Config:
    config_topic = 'doorlock'

    def __init__(self, sysconfdir):
        self.config = ConfigParser()
        self.config.read([join(sysconfdir, 'doorlockd.default.cfg'),
                          join(sysconfdir, 'doorlockd.cfg')])

    def boolean(self, key):
        return self.config.getboolean(self.config_topic, key)

    def str(self, key):
        return self.config.get(self.config_topic, key)


cfg = Config(SYSCONFDIR)


class Logic:
    def __init__(self, cfg, sounds_prefix, scripts_prefix):
        self.auth = Authenticator(cfg)
        self.door_handler = DoorHandler(cfg, sounds_prefix, scripts_prefix)

    def request(self, state, credentials):
        err = self.auth.try_auth(credentials)
        if err != DoorlockResponse.Success:
            return err

        return self.door_handler.request(state)

    @property
    def state(self):
        return self.door_handler.state


if __name__ == '__main__':
    logging.basicConfig(level=log_level, stream=sys.stdout,
                        format=log_fmt, datefmt=date_fmt)
    log.info('Starting doorlockd')

    root_prefix = join(PREFIX, 'share', 'doorlockd')

    sounds_prefix = join(root_prefix, 'sounds')
    scripts_prefix = join(root_prefix, 'scripts')
    logic = Logic(cfg, sounds_prefix, scripts_prefix)

    static_folder = abspath(join(root_prefix, 'static'))
    template_folder = abspath(join(root_prefix, 'templates'))
    webapp_run(cfg, logic, __status__, __version__, template_folder,
               static_folder)

    sys.exit(0)