import cherrypy
import json


class Token(object):

    @cherrypy.expose
    @cherrypy.tools.json_out()
    def index(self):
        raw_body = cherrypy.request.body.read()
        data = json.loads(raw_body)

        client_id = data['client_id']
        code = data['code']
        grant_type = data['grant_type']

        if grant_type == 'ocm_authorization_code':
            return self.get_token(client_id, code)
        else:
            return {'error': 'unsupported grant_type'}

    def get_token(self, client_id, code) -> dict:
        if self.validate_token(client_id, code):
            token = {
                "access_token": "asdfgh",
                "token_type": "bearer",
                "expires_in": 3600,
                "refresh_token": "qwertyuiop"
            }
            return token
        else:
            error = {'error': 'invalid_grant'}
            return error

    def validate_token(self, client_id, token) -> bool:
        return True