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# Copyright (C) 2017  Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.


import apifw


def response(status, body, headers):
    return apifw.Response(
        {
            'status': status,
            'body': body,
            'headers': headers,
        }
    )


def ok_response(body, headers=None):
    if headers is None:
        headers = {}
    if 'Content-Type' not in headers:
        headers.update({
            'Content-Type': 'application/json',
        })
    return response(apifw.HTTP_OK, body, headers)


def not_found_response():
    body = 'Not Found\n'
    headers = {}
    return response(apifw.HTTP_NOT_FOUND, body, headers)


def created_response(body, location):
    headers = {
        'Content-Type': 'application/json',
        'Location': location,
    }
    return response(apifw.HTTP_CREATED, body, headers)


def bad_request_response(body):
    headers = {
        'Content-Type': 'text/plain',
    }
    return response(apifw.HTTP_BAD_REQUEST, body, headers)


def unauthorized_response(body):
    headers = {
        'Content-Type': 'text/plain',
    }
    return response(apifw.HTTP_UNAUTHORIZED, body, headers)


def found_response(body, location):
    headers = {
        'Content-Type': 'text/plain',
        'Location': location,
    }
    # TODO: use apifw.FOUND_CREATED when available
    return response(302, body, headers)