import logging


import requests


class LibreViewSession:
    def __init__(self):
        self.authenticated = False
        self.token = ""

        self.connections = []

    def useToken(self, token):
        url = "https://api.libreview.io/user"

        self.token = token

        headers = {
            "version": "4.7",
            "product": "llu.ios",
            "Accept": "application/json",
            "Authorization": "Bearer " + self.token
        }

        response = requests.get(url, headers=headers)

        if response.status_code != 200:
            logging.debug(f"got status code {response.status_code} when attempting to test token")
            self.authenticated = False
        else:
            self.authenticated = True


    def authenticate(self, email, password):
        url = "https://api.libreview.io/llu/auth/login"

        if self.authenticated:
            return

        headers = {
            "version": "4.7",
            "product": "llu.ios",
            "Content-Type": "application/json",
            "Accept": "application/json"
        }

        payload = {
            "email": email,
            "password": password,
        }

        response = requests.post(url, json=payload, headers=headers)

        if response.status_code == 200:
            json = response.json()
            if 'status' in json:
                if json['status'] == 0 and 'data' in json:
                    data = json['data']
                    auth_ticket = data['authTicket']
                    self.token = auth_ticket['token']

                    self.authenticated = True
                else:
                    self.authenticated = False
                    logging.debug(f"failed to authenticate with libreview, got status {json['status']}")
                    return

    def getConnections(self):
        url = "https://api.libreview.io/llu/connections"

        headers = {
            "version": "4.7",
            "product": "llu.ios",
            "Accept": "application/json",
            "Authorization": "Bearer " + self.token
        }

        response = requests.get(url, headers=headers)

        if response.status_code != 200:
            logging.debug(f"got http response code {response.status_code} from libreview when attempting to get connections")
            return []

        json = response.json()
        if 'data' in json:
            self.connections = json['data']
        else:
            print(response.content)
            self.connections = []

    def getGraph(self, patientId):
        """
        getGraph gets the LibreView graph for the {patientID}
        """
        url = f"https://api.libreview.io/llu/connections/{patientId}/graph"

        headers = {
            "version": "4.7",
            "product": "llu.ios",
            "Accept": "application/json",
            "Authorization": "Bearer " + self.token
        }

        response = requests.get(url, headers=headers)

        json = response.json()
        if 'data' in json:
            return json['data']
        else:
            return None