# -*- coding: utf-8 -*-
# Copyright (c) 2019-2020 Christiaan Frans Rademan <chris@fwiw.co.za>.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# * Neither the name of the copyright holders nor the names of its
#   contributors may be used to endorse or promote products derived from
#   this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.
from luxon import g
from luxon import GetLogger
from luxon.core.openapi.parser import Parser
from luxon.exceptions import HTTPNotImplemented
from luxon import router

log = GetLogger(__name__)

g.openapi = []


class OpenAPI(object):
    SCHEMA = ''
    POLICIES = {}

    def __init__(self):
        g.openapi.append(self.SCHEMA)
        self._openapi = Parser(self.SCHEMA)

        for route in self._openapi.routes:
            _method, _route, _op_id, _policy = route
            router.add(_method,
                       _route,
                       self._view(_op_id),
                       tag=_policy)

    def _view(self, operation_id):
        def _view(req, resp, **kwargs):
            try:
                view = getattr(self, operation_id)
            except AttributeError:
                raise HTTPNotImplemented(operation_id)
            return view(req, resp)
        return _view
