import requests
import requests_cache
import json

requests_cache.install_cache('grocy', allowable_methods=('GET',), expire_after=180)
class RestService(object):
    API_KEY_HEADER = 'GROCY-API-KEY'
    def __init__(self, api_url, json=False):
        self.api_url = api_url
        self.headers = {}
        self.json = json

    def get(self, path, id=None):

        # TODO: change this to a single pattern assume a pattern then stick with it 
        if self.api_url.endswith('/'):
            url = '{0}{1}'.format(self.api_url, path[1:])
        else:
            url = '{0}{1}'.format(self.api_url, path)

        if id:
            url = '{0}/{1}'.format(url, id)

        r = requests.get(url, headers=self.headers)

        if r.raise_for_status():
            logger.error(r.raise_for_status())
            raise r.raise_for_status()

        if self.json:
            return r.json()

        return r.content

    def delete(self, path, id):
        api_url = self.api_url

        if api_url.endswith('/'):
            url = '{0}{1}'.format(api_url, path[1:])
        else:
            url = '{0}/{1}'.format(api_url, path)

        r = requests.get(url, headers=self.headers)
         
        if r.raise_for_status():
            logger.error(r.raise_for_status())
            raise r.raise_for_status()

        if self.json:
            return r.json()

        return r.content

    def post(self, path, payload):
        api_url = self.api_url

        if self.api_url.endswith('/'):
            api_url = api_url[1:]

        if path.startswith('/'):
            url ='{0}{1}'.format(api_url, path)
        else:
            url = '{0}/{1}'.format(api_url, path)

        print('{}'.format(url))
        r = requests.post(url, data=json.dumps(payload), headers=self.headers)

        #if r.raise_for_status():
        #    logger.error(r.raise_for_status())
        #    raise r.raise_for_status()

        if self.json:
            return r.json()

        return r.content

    def addHeader(self, type, value):
        self.headers[type] = value
    
    def addToken(self, value):
        self.headers[RestService.API_KEY_HEADER] = value;