"""
ApiClient
=========

Client class specifically for making calls to VAPI.
Acts as a thin wrapper around the requests library.
http://docs.python-requests.org/en/latest/
"""

import requests


class ApiClient:
    API_VERSION = '1'

    def __init__(self, base_url, access_token):
        self.base_url = base_url
        self.access_token = access_token

    def get(self, path, **kwargs):
        """Execute a GET request against the given endpoint."""

        return self.request('get', path, **kwargs)

    def post(self, path, **kwargs):
        """Execute a POST request against the given endpoint."""

        return self.request('post', path, **kwargs)

    def put(self, path, **kwargs):
        """Execute a PUT request against the given endpoint."""

        return self.request('put', path, **kwargs)

    def delete(self, path, **kwargs):
        """Execute a DELETE request against the given endpoint."""

        return self.request('delete', path, **kwargs)

    def request(self, method, path, **kwargs):
        """Execute a request against the API. Passes the given keyword args
        through to the requests library, with the 'version' and 'access-token'
        headers injected.

        Return requests Response object.
        http://docs.python-requests.org/en/latest
        """

        full_url = self.base_url.rstrip('/') + '/' + path.lstrip('/')
        req_kwargs = kwargs.copy()
        if 'headers' not in req_kwargs:
            req_kwargs['headers'] = {}
        # inject the necessary headers
        req_kwargs['headers']['version'] = self.API_VERSION
        req_kwargs['headers']['access-token'] = self.access_token
        # pass the given kwargs through to requests, with our changes
        return requests.request(method, full_url, **req_kwargs)