# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2012 OpenStack LLC.
# Copyright (C) 2013 PolyBeacon, Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import copy
import requests
import StringIO
import testtools

from payloadclient.common import http


class FakeAPI(object):
    def __init__(self, fixtures):
        self.fixtures = fixtures
        self.calls = []

    def _request(self, method, url, headers=None, body=None):
        call = (method, url, headers or {}, body)
        self.calls.append(call)
        return self.fixtures[url][method]

    def raw_request(self, *args, **kwargs):
        fixture = self._request(*args, **kwargs)
        body_iter = http.ResponseBodyIterator(StringIO.StringIO(fixture[1]))
        return FakeResponse(fixture[0]), body_iter

    def json_request(self, *args, **kwargs):
        fixture = self._request(*args, **kwargs)
        return FakeResponse(fixture[0]), fixture[1]


class FakeResponse(object):
    def __init__(self, headers, body=None,
                 version=1.0, status=200, reason="Ok"):
        """:param headers: dict representing HTTP response headers
        :param body: file-like object
        :param version: HTTP Version
        :param status: Response status code
        :param reason: Status code related message.
        """
        self.body = body
        self.status = status
        self.reason = reason
        self.version = version
        self.headers = headers

    def getheaders(self):
        return copy.deepcopy(self.headers).items()

    def getheader(self, key, default):
        return self.headers.get(key, default)

    def read(self, amt):
        return self.body.read(amt)


class TestCase(testtools.TestCase):
    TEST_REQUEST_BASE = {
        'config': {'danger_mode': False},
        'verify': True}


class TestResponse(requests.Response):
    """Class used to wrap requests.Response and provide some
    convenience to initialize with a dict
    """
    def __init__(self, data):
        self._text = None
        super(TestResponse, self)
        if isinstance(data, dict):
            self.status_code = data.get('status_code', None)
            self.headers = data.get('headers', None)
            # Fake the text attribute to streamline Response creation
            self._text = data.get('text', None)
        else:
            self.status_code = data

    def __eq__(self, other):
        return self.__dict__ == other.__dict__

    @property
    def text(self):
        return self._text
