from flask import Blueprint, request, jsonify
import geruecht.controller.ldapController as lc
import geruecht.controller.userController as uc
from datetime import datetime
from geruecht.model import BAR, MONEY, USER, VORSTAND
from geruecht.decorator import login_required

baruser = Blueprint("baruser", __name__)

ldap= lc.LDAPController()
userController = uc.UserController()


@baruser.route("/bar")
@login_required(groups=[BAR])
def _bar(**kwargs):
    """ Main function for Baruser

        Returns JSON-file with all Users, who hast amounts in this month.

        Returns:
            JSON-File with Users, who has amounts in this month
            or ERROR 401 Permission Denied
    """
    dic = {}
    users = userController.getAllUsersfromDB()
    for user in users:
        geruecht = None
        geruecht = user.getGeruecht(datetime.now().year)
        if geruecht is not None:
            month = geruecht.getMonth(datetime.now().month)
            amount = month[0] - month[1]
            all = geruecht.getSchulden()
            if all != 0:
                if all >= 0:
                    type = 'credit'
                else:
                    type = 'amount'
                dic[user.uid] = {"username": user.uid,
                                    "firstname": user.firstname,
                                    "lastname": user.lastname,
                                    "amount": all,
                                    "locked": user.locked,
                                    "type": type
                                    }
    return jsonify(dic)


@baruser.route("/baradd", methods=['POST'])
@login_required(groups=[BAR])
def _baradd(**kwargs):
    """ Function for Baruser to add amount

        This function added to the user with the posted userID the posted amount.

        Returns:
            JSON-File with userID and the amount
            or ERROR 401 Permission Denied
    """
    data = request.get_json()
    userID = data['userId']
    amount = int(data['amount'])

    date = datetime.now()
    userController.addAmount(userID, amount, year=date.year, month=date.month)
    user = userController.getUser(userID)
    geruecht = user.getGeruecht(year=date.year)
    month = geruecht.getMonth(month=date.month)
    amount = abs(month[0] - month[1])
    all = geruecht.getSchulden()
    if all >= 0:
        type = 'credit'
    else:
        type = 'amount'
    dic = user.toJSON()
    dic['amount'] = abs(all)
    dic['type'] = type

    return jsonify(dic)


@baruser.route("/barGetUsers")
@login_required(groups=[BAR, MONEY])
def _getUsers(**kwargs):
    """ Get Users without amount

        This Function returns all Users, who hasn't an amount in this month.

        Returns:
            JSON-File with Users
            or ERROR 401 Permission Denied
    """
    retVal = {}
    retVal = ldap.getAllUser()
    return jsonify(retVal)

@baruser.route("/bar/storno", methods=['POST'])
@login_required(groups=[BAR])
def _storno(**kwargs):
    """ Function for Baruser to storno amount

            This function added to the user with the posted userID the posted amount.

            Returns:
                JSON-File with userID and the amount
                or ERROR 401 Permission Denied
        """
    data = request.get_json()
    userID = data['userId']
    amount = int(data['amount'])

    date = datetime.now()
    userController.addCredit(userID, amount, year=date.year, month=date.month)
    user = userController.getUser(userID)
    geruecht = user.getGeruecht(year=date.year)
    month = geruecht.getMonth(month=date.month)
    amount = abs(month[0] - month[1])
    all = geruecht.getSchulden()
    if all >= 0:
        type = 'credit'
    else:
        type = 'amount'
    dic = user.toJSON()
    dic['amount'] = abs(all)
    dic['type'] = type

    return jsonify(dic)

@baruser.route("/barGetUser", methods=['POST'])
@login_required(groups=[BAR])
def _getUser(**kwargs):
    data = request.get_json()
    username = data['userId']
    user = userController.getUser(username)
    amount = user.getGeruecht(datetime.now().year).getSchulden()
    if amount >= 0:
        type = 'credit'
    else:
        type = 'amount'

    retVal = user.toJSON()
    retVal['amount'] = amount
    retVal['type'] = type
    return jsonify(retVal)

@baruser.route("/search", methods=['GET'])
@login_required(groups=[BAR, MONEY, USER,VORSTAND])
def _search(**kwargs):
    retVal = ldap.getAllUser()
    for user in retVal:
        if user['username'] == 'extern':
            retVal.remove(user)
            break
    return jsonify(retVal)