from . import LOGGER, Singleton, db, ldapController as ldap, emailController
from geruecht.model.user import User
from geruecht.exceptions import PermissionDenied
from datetime import datetime, timedelta

class UserController(metaclass=Singleton):

    def __init__(self):
        pass

    def getWorker(self, date, username=None):
        if (username):
            user = self.getUser(username)
            return [db.getWorker(user, date)]
        return db.getWorkers(date)

    def addWorker(self, username, date):
        user = self.getUser(username)
        if (not db.getWorker(user, date)):
            db.setWorker(user, date)

    def deleteWorker(self, username, date):
        user = self.getUser(username)
        db.setWorker(user, date)

    def lockUser(self, username, locked):
        user = self.getUser(username)
        user.updateData({'locked': locked})
        db.updateUser(user)
        return self.getUser(username)

    def updateConfig(self, username, data):
        user = self.getUser(username)
        user.updateData(data)
        db.updateUser(user)
        return self.getUser(username)

    def autoLock(self, user):
        if user.autoLock:
            if user.getGeruecht(year=datetime.now().year).getSchulden() <= (-1*user.limit):
                user.updateData({'locked': True})
                emailController.sendMail(user)
            else:
                user.updateData({'locked': False})
        db.updateUser(user)

    def addAmount(self, username, amount, year, month, finanzer=False):
        user = self.getUser(username)
        if not user.locked or finanzer:
            user.addAmount(amount, year=year, month=month)
            creditLists = user.updateGeruecht()
            for creditList in creditLists:
                db.updateCreditList(creditList)
        self.autoLock(user)
        return user.getGeruecht(year)

    def addCredit(self, username, credit, year, month):
        user = self.getUser(username)
        user.addCredit(credit, year=year, month=month)
        creditLists = user.updateGeruecht()
        for creditList in creditLists:
            db.updateCreditList(creditList)
        self.autoLock(user)
        return user.getGeruecht(year)

    def getAllUsersfromDB(self):
        users = db.getAllUser()
        for user in users:
            self.__updateGeruechte(user)
        return db.getAllUser()

    def checkBarUser(self, user):
        date = datetime.now()
        startdatetime = date.replace(hour=11, minute=0, microsecond=0)
        enddatetime = startdatetime + timedelta(days=1)
        result = False
        if date >= startdatetime and date < enddatetime:
            result = db.getWorker(user, startdatetime)
        return True if result else False


    def getUser(self, username):
        user = db.getUser(username)
        groups = ldap.getGroup(username)
        user_data = ldap.getUserData(username)
        user_data['gruppe'] = groups
        user_data['group'] = groups
        if user is None:
            user = User(user_data)
            db.insertUser(user)
        else:
            user.updateData(user_data)
            db.updateUser(user)
        user = db.getUser(username)
        self.__updateGeruechte(user)
        return user

    def __updateGeruechte(self, user):
        user.getGeruecht(datetime.now().year)
        creditLists = user.updateGeruecht()
        if user.getGeruecht(datetime.now().year).getSchulden() != 0:
            for creditList in creditLists:
                db.updateCreditList(creditList)

    def sendMail(self, username):
        if type(username) == User:
            user = username
        if type(username) == str:
            user = db.getUser(username)
        return emailController.sendMail(user)

    def sendAllMail(self):
        retVal = []
        users = db.getAllUser()
        for user in users:
            retVal.append(self.sendMail(user))
        return retVal

    def loginUser(self, username, password):
        try:
            user = self.getUser(username)
            ldap.login(username, password)
            return user
        except PermissionDenied as err:
            raise err