# =============================================================================
API_HOST = "api.smash.gg"
API_ENDPOINT = "gql/alpha"
API_SCHEME = "https"
API_URL = "{scheme}://{host}/{endpoint}".format(
        scheme = API_SCHEME,
        host = API_HOST,
        endpoint = API_ENDPOINT,
        )

# =============================================================================
def run_query(
        query_name,
        variables = {},
        query_dir = "queries",
        query_extension = "gql",
        api_url = API_URL,
        log = None,
        ):

    # Load query
    query_path = os.path.join(
            query_dir,
            "{}.{}".format(
                query_name,
                query_extension,
                )
            )
    query  = ""

    with open(query_path, 'r') as query_file:
        query = query_file.read()

    # Build payload
    payload = {
            "query": query,
            "variables": json.dumps(variables),
            }

    # Build headers
    headers = {
            "Authorization": "Bearer {token}".format(token = args.token),
            "Accept": "application/json",
            "Content-Type": "application/json"
            }

    # Send the query
    try:
        log.debug("Sending query '{}' with variables:".format(query_name))
        log.debug(json.dumps(variables))
    except AttributeError:
        pass

    rv = requests.post(
            API_URL,
            json.dumps(payload).encode("utf-8"),
            headers = headers,
            proxies = {"http": args.proxy, "https": args.proxy},
            )

    try:
        rv_json = rv.json()
    except Exception as e:
        log.error("HTTP request failed")
        log.error(e)
        log.debug(e, exc_info=True)
        log.debug(rv)

    # Try to return the data, or log the error and return None
    try:
        log.debug("query complexity : {}" \
                .format(
                    rv_json["extensions"]["queryComplexity"],
                    ))
        return rv_json["data"]
    except KeyError:
        try:
            log.error("GraphQL error")
            log.error(rv_json)
        except AttributeError:
            pass
        return None