import requests

class HTTPClient(object):
    """HTTP client for Invoice Ninja REST API."""

    def __init__(self, endpoint_url: str = 'https://invoicing.co',
            api_token: str = str()):
        self_endpoint_url = 'https://invoicing.co'
        self._api_token = str()
        self._headers = dict()

    @property
    def endpoint_url(self):
        return self._endpoint_url

    @endpoint_url.setter
    def endpoint_url(self, endpoint_url: str):
        self._endpoint_url = endpoint_url

    @property
    def api_token(self):
        return self._api_token

    @api_token.setter
    def api_token(self, api_token: str):
        self._api_token = api_token

    def add_headers(self, headers: dict):
        """Add HTTP headers to request."""

        self._headers.update(headers)

    def build_headers(self):
        """Build Invoice Ninja API headers for request.

            A header dictionary with the API token is returned by default.
        """

        headers = {
                'X-API-TOKEN': _api_token,
                'X-Requested-With': 'XMLHttpRequest'}

        return self._headers.update(headers)

    def send(self, uri: str,
            payload: dict,
            method: str = 'get'):
        """Send request to Invoice Ninja REST API."""

        url = '{}/{}'.format(endpoint_url, uri)

        if method == 'get':
            return requests.get(url, params=payload)
            
        elif method == 'post':
            return requests.post(url, params=payload)