from geruecht import app, db, accesTokenController, MONEY, BAR, USER, GASTRO, LOGGER
from geruecht.model.user import User
from geruecht.model.creditList import CreditList
from geruecht.model.priceList import PriceList
from datetime import datetime
from flask import request, jsonify

def verifyAccessToken(token, group):
    """ Verify Accestoken

        Verify an Accestoken and Group so if the User has permission or not.
        Retrieves the accestoken if valid else retrieves None

        Args:
            token: Token to verify.
            group: Group like 'moneymaster', 'gastro', 'user' or 'bar'
        Returns:
            An the AccesToken for this given Token or None.
    """
    LOGGER.info("Verify AccessToken with token: {} and group: {}".format(token, group))
    accToken = accesTokenController.findAccesToken(token)
    LOGGER.debug("AccessToken is {}".format(accToken))
    if accToken is not None:
        LOGGER.debug("Check if AccesToken {} has same group {}".format(accToken, group))
        if accesTokenController.isSameGroup(accToken, group):
            accToken.updateTimestamp()
            LOGGER.info("Found AccessToken {} with token: {} and group: {}".format(accToken, token, group))
            return accToken
    LOGGER.info("No AccessToken with token: {} and group: {} found".format(token, group))
    return None

@app.route("/valid")
def _valid():
    token = request.headers.get("Token")
    accToken = verifyAccessToken(token, MONEY)
    if accToken is not None:
        return jsonify(accToken.user.toJSON())
    accToken = verifyAccessToken(token, BAR)
    if accToken is not None:
        return jsonify(accToken.user.toJSON())
    accToken = verifyAccessToken(token, GASTRO)
    if accToken is not None:
        return jsonify(accToken.user.toJSON())
    accToken = verifyAccessToken(token, USER)
    if accToken is not None:
        return jsonify(accToken.user.toJSON())
    return jsonify({"error": "permission denied"}), 401

@app.route("/login", methods=['POST'])
def _login():
    """ Login User

        Nothing to say.
        Login in User and create an AccessToken for the User.

        Returns:
            A JSON-File with createt Token or Errors
    """
    LOGGER.info("Start log in.")
    data = request.get_json()
    LOGGER.debug("JSON from request: {}".format(data))
    username = data['username']
    password = data['password']
    LOGGER.info("{} try to log in".format(username))
    user = User.query.filter_by(username=username).first()
    LOGGER.debug("User is {}".format(user))
    if user:
        LOGGER.debug("Check login for User {}".format(user))
        if user.login(password):
            token = accesTokenController.createAccesToken(user)
            dic = user.toJSON()
            dic["token"] = token
            LOGGER.info("User {} success login.".format(username))
            return jsonify(dic)
        else:
            LOGGER.info("User {} failed login.".format(username))
            return jsonify({"error": "wrong password"}), 401
    LOGGER.info("User {} does not exist.".format(username))
    return jsonify({"error": "wrong username"}), 402

@app.route("/getFinanzer")
def getFinanzer():
    users = User.query.all()
    dic = {}
    for user in users:
        dic[user.userID] = user.toJSON()
    print(dic)
    return jsonify(dic)