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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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#   1. Redistributions of source code must retain the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer.
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#
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#   2. Redistributions in binary form must reproduce the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer in the documentation and/or other materials
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#      provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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import json
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import logging
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import requests
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from requests.auth import AuthBase
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sendlog = logging.getLogger('clients.send')
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recvlog = logging.getLogger('clients.recv')
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# Add a convenience json property to the responses
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def _json(self):
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    try:
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        return json.loads(self.content) if self.content else {}
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    except ValueError:
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        raise ClientError("Invalid JSON reply", self.status_code)
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requests.Response.json = property(_json)
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# Add a convenience status property to the responses
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def _status(self):
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    return requests.status_codes._codes[self.status_code][0].upper()
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requests.Response.status = property(_status)
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class XAuthTokenAuth(AuthBase):
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    def __init__(self, token):
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        self.token = token
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    def __call__(self, r):
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        r.headers['X-Auth-Token'] = self.token
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        return r
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class ClientError(Exception):
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    def __init__(self, message, status=0, details=''):
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        self.message = message
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        self.status = status
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        self.details = details
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class Client(object):
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    def __init__(self, base_url, token):
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        self.base_url = base_url
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        self.auth = XAuthTokenAuth(token)
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    def raise_for_status(self, r):        
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        message = "%d %s" % (r.status_code, r.status)
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        details = r.text
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        raise ClientError(message, r.status_code, details)
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    def request(self, method, path, **kwargs):
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        raw = kwargs.pop('raw', False)
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        success = kwargs.pop('success', 200)
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        if 'json' in kwargs:
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            data = json.dumps(kwargs.pop('json'))
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            kwargs['data'] = data
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            headers = kwargs.setdefault('headers', {})
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            headers['content-type'] = 'application/json'
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        url = self.base_url + path
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        kwargs.setdefault('auth', self.auth)
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        kwargs.setdefault('verify', False)  # Disable certificate verification
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        r = requests.request(method, url, **kwargs)
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        req = r.request
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        sendlog.info('%s %s', req.method, req.url)
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        for key, val in req.headers.items():
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            sendlog.info('%s: %s', key, val)
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        sendlog.info('')
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        if req.data:
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            sendlog.info('%s', req.data)
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        recvlog.info('%d %s', r.status_code, r.status)
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        for key, val in r.headers.items():
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            recvlog.info('%s: %s', key, val)
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        recvlog.info('')
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        if not raw and r.text:
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            recvlog.debug(r.text)
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        if success is not None:
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            # Success can either be an in or a collection
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            success = (success,) if isinstance(success, int) else success
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            if r.status_code not in success:
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                self.raise_for_status(r)
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        return r
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    def delete(self, path, **kwargs):
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        return self.request('delete', path, **kwargs)
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    def get(self, path, **kwargs):
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        return self.request('get', path, **kwargs)
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    def head(self, path, **kwargs):
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        return self.request('head', path, **kwargs)
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    def post(self, path, **kwargs):
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        return self.request('post', path, **kwargs)
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    def put(self, path, **kwargs):
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        return self.request('put', path, **kwargs)
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from .compute import ComputeClient as compute
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from .image import ImageClient as image
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from .storage import StorageClient as storage
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from .cyclades import CycladesClient as cyclades
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from .pithos import PithosClient as pithos
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from .astakos import AstakosClient as astakos