from . import Singleton, mailConfig
import geruecht.controller.databaseController as dc
import geruecht.controller.ldapController as lc
import geruecht.controller.emailController as ec
import calendar
from geruecht.model.user import User
from geruecht.exceptions import PermissionDenied
from datetime import datetime, timedelta
from geruecht.exceptions import UsernameExistLDAP, LDAPExcetpion, DayLocked, TansactJobIsAnswerdException
from geruecht.logger import getDebugLogger

db = dc.DatabaseController()
ldap = lc.LDAPController()
emailController = ec.EmailController(
    mailConfig['URL'], mailConfig['user'], mailConfig['passwd'], mailConfig['crypt'], mailConfig['port'], mailConfig['email'])

debug = getDebugLogger()


class UserController(metaclass=Singleton):

    def __init__(self):
        debug.debug("init UserController")
        pass

    def getAllStatus(self):
        debug.info("get all status for user")
        retVal = db.getAllStatus()
        debug.debug("status are {{ {} }}".format(retVal))
        return retVal

    def getStatus(self, name):
        debug.info("get status of user {{ {} }}".format(name))
        retVal = db.getStatus(name)
        debug.debug("status of user {{ {} }} is {{ {} }}".format(name, retVal))
        return retVal

    def setStatus(self, name):
        debug.info("set status of user {{ {} }}".format(name))
        retVal = db.setStatus(name)
        debug.debug(
            "settet status of user {{ {} }} is {{ {} }}".format(name, retVal))
        return retVal

    def deleteStatus(self, status):
        debug.info("delete status {{ {} }}".format(status))
        db.deleteStatus(status)

    def updateStatus(self, status):
        debug.info("update status {{ {} }}".format(status))
        retVal = db.updateStatus(status)
        debug.debug("updated status is {{ {} }}".format(retVal))
        return retVal

    def updateStatusOfUser(self, username, status):
        debug.info("update status {{ {} }} of user {{ {} }}".format(
            status, username))
        retVal = db.updateStatusOfUser(username, status)
        debug.debug(
            "updatet status of user {{ {} }} is {{ {} }}".format(username, retVal))
        return retVal

    def updateVotingOfUser(self, username, voting):
        debug.info("update voting {{ {} }} of user {{ {} }}".format(
            voting, username))
        retVal = db.updateVotingOfUser(username, voting)
        debug.debug(
            "updatet voting of user {{ {} }} is {{ {} }}".format(username, retVal))
        return retVal

    def deleteDrinkType(self, type):
        debug.info("delete drink type {{ {} }}".format(type))
        db.deleteDrinkType(type)

    def updateDrinkType(self, type):
        debug.info("update drink type {{ {} }}".format(type))
        retVal = db.updateDrinkType(type)
        debug.debug("updated drink type is {{ {} }}".format(retVal))
        return retVal

    def setDrinkType(self, type):
        debug.info("set drink type {{ {} }}".format(type))
        retVal = db.setDrinkType(type)
        debug.debug("seted drink type is {{ {} }}".format(retVal))
        return retVal

    def deletDrinkPrice(self, drink):
        debug.info("delete drink {{ {} }}".format(drink))
        db.deleteDrink(drink)

    def setDrinkPrice(self, drink):
        debug.info("set drink {{ {} }}".format(drink))
        retVal = db.setDrinkPrice(drink)
        debug.debug("seted drink is {{ {} }}".format(retVal))
        return retVal

    def updateDrinkPrice(self, drink):
        debug.info("update drink {{ {} }}".format(drink))
        retVal = db.updateDrinkPrice(drink)
        debug.debug("updated drink is {{ {} }}".format(retVal))
        return retVal

    def getAllDrinkTypes(self):
        debug.info("get all drink types")
        retVal = db.getAllDrinkTypes()
        debug.debug("all drink types are {{ {} }}".format(retVal))
        return retVal

    def getPricelist(self):
        debug.info("get all drinks")
        list = db.getPriceList()
        debug.debug("all drinks are {{ {} }}".format(list))
        return list

    def setTransactJob(self, from_user, to_user, date):
        debug.info("set transact job from {{ {} }} to {{ {} }} on {{ {} }}".format(
            from_user, to_user, date))
        jobtransact = db.setTransactJob(from_user, to_user, date.date())
        debug.debug("transact job is {{ {} }}".format(jobtransact))
        debug.info("send mail with transact job to user")
        emailController.sendMail(
            jobtransact['to_user'], 'jobtransact', jobtransact)
        return jobtransact

    def getTransactJobFromUser(self, user, date):
        debug.info(
            "get transact job from user {{ {} }} on {{ {} }}".format(user, date))
        retVal = db.getTransactJobFromUser(user, date.date())
        debug.debug(
            "transact job from user {{ {} }} is {{ {} }}".format(user, retVal))
        return retVal

    def getAllTransactJobFromUser(self, user, date):
        debug.info(
            "get all transact job from user {{ {} }} start on {{ {} }}".format(user, date))
        retVal = db.getAllTransactJobFromUser(user, date.date())
        debug.debug("all transact job are {{ {} }}".format(retVal))
        return retVal

    def getAllTransactJobToUser(self, user, date):
        debug.info(
            "get all transact job from to_user {{ {} }} start on {{ {} }}".format(user, date))
        retVal = db.getAllTransactJobToUser(user, date.date())
        debug.debug("all transact job are {{ {} }}".format(retVal))
        return retVal

    def getTransactJob(self, from_user, to_user, date):
        debug.info("get transact job from user {{ {} }} to user {{ {} }} on {{ {} }}".format(
            from_user, to_user, date))
        retVal = db.getTransactJob(from_user, to_user, date.date())
        debug.debug("transact job is {{ {} }}".format(retVal))
        return retVal

    def deleteTransactJob(self, from_user, to_user, date):
        debug.info("delete transact job from user {{ {} }} to user {{ {} }} on {{ {} }}".format(
            from_user, to_user, date))
        transactJob = self.getTransactJob(from_user, to_user, date)
        debug.debug("transact job is {{ {} }}".format(transactJob))
        if transactJob['answerd']:
            debug.warning(
                "transactjob {{ {} }} can not delete because is answerd")
            raise TansactJobIsAnswerdException(
                "TransactJob is already answerd")
        db.deleteTransactJob(from_user, to_user, date.date())

    def answerdTransactJob(self, from_user, to_user, date, answer):
        debug.info("answer transact job from user {{ {} }} to user {{ {} }} on {{ {} }} with answer {{ {} }}".format(
            from_user, to_user, date, answer))
        transactJob = db.updateTransactJob(
            from_user, to_user, date.date(), answer)
        debug.debug("transactjob is {{ {} }}".format(transactJob))
        if answer:
            debug.info("add worker on date {{ {} }}".format(date))
            self.addWorker(to_user.uid, date)
        return transactJob

    def setLockedDay(self, date, locked, hard=False):
        debug.info(
            "set day locked on {{ {} }} with state {{ {} }}".format(date, locked))
        retVal = db.setLockedDay(date.date(), locked, hard)
        debug.debug("seted day locked is {{ {} }}".format(retVal))
        return retVal

    def getLockedDays(self, from_date, to_date):
        debug.info("get locked days from {{ {} }} to {{ {} }}".format(
            from_date.date(), to_date.date()))
        oneDay = timedelta(1)
        delta = to_date.date() - from_date.date()
        retVal = []
        startdate = from_date - oneDay
        for _ in range(delta.days + 1):
            startdate += oneDay
            lockday = self.getLockedDay(startdate)
            retVal.append(lockday)
        debug.debug("lock days are {{ {} }}".format(retVal))
        return retVal

    def getLockedDay(self, date):
        debug.info("get locked day on {{ {} }}".format(date))
        now = datetime.now()
        debug.debug("now is {{ {} }}".format(now))
        oldMonth = False
        debug.debug("check if date old month or current month")
        for i in range(1, 8):
            if datetime(now.year, now.month, i).weekday() == 2:
                if now.day < i:
                    oldMonth = True
                    break
        debug.debug("oldMonth is {{ {} }}".format(oldMonth))
        lockedYear = now.year
        lockedMonth = now.month if now.month < now.month else now.month - \
            1 if oldMonth else now.month
        endDay = 1
        debug.debug("calculate end day of month")
        lockedYear = lockedYear if lockedMonth != 12 else (lockedYear + 1)
        lockedMonth = (lockedMonth + 1) if lockedMonth != 12 else 1
        for i in range(1, 8):
            nextMonth = datetime(lockedYear, lockedMonth, i)
            if nextMonth.weekday() == 2:
                endDay = i
                break

        monthLockedEndDate = datetime(
            lockedYear, lockedMonth, endDay) - timedelta(1)
        debug.debug("get lock day from database")
        retVal = db.getLockedDay(date.date())
        if not retVal:
            debug.debug(
                "lock day not exists, retVal is {{ {} }}".format(retVal))
            if date.date() <= monthLockedEndDate.date():
                debug.debug("lock day {{ {} }}".format(date.date()))
                self.setLockedDay(date, True)
                retVal = db.getLockedDay(date.date())
            else:
                retVal = {"daydate": date.date(), "locked": False}
        debug.debug("locked day is {{ {} }}".format(retVal))
        return retVal

    def getWorker(self, date, username=None):
        debug.info("get worker {{ {} }} on {{ {} }}".format(username, date))
        if (username):
            user = self.getUser(username)
            debug.debug("user is {{ {} }}".format(user))
            retVal = [db.getWorker(user, date)]
            debug.debug("worker is {{ {} }}".format(retVal))
            return retVal
        retVal = db.getWorkers(date)
        debug.debug("workers are {{ {} }}".format(retVal))
        return retVal

    def addWorker(self, username, date, userExc=False):
        debug.info("add job user {{ {} }} on {{ {} }}".format(username, date))
        if (userExc):
            debug.debug("this is a user execution, check if day is locked")
            lockedDay = self.getLockedDay(date)
            if lockedDay:
                if lockedDay['locked']:
                    debug.debug("day is lockey. user cant get job")
                    raise DayLocked("Day is locked. You can't get the Job")
        user = self.getUser(username)
        debug.debug("user is {{ {} }}".format(user))
        debug.debug("check if user has job on date")
        if (not db.getWorker(user, date)):
            debug.debug("set job to user")
            db.setWorker(user, date)
        retVal = self.getWorker(date, username=username)
        debug.debug("worker on date is {{ {} }}".format(retVal))
        return retVal

    def deleteWorker(self, username, date, userExc=False):
        debug.info(
            "delete worker {{ {} }} on date {{ {} }}".format(username, date))
        user = self.getUser(username)
        debug.debug("user is {{ {} }}".format(user))
        if userExc:
            debug.debug("is user execution, check if day locked")
            lockedDay = self.getLockedDay(date)
            if lockedDay:
                if lockedDay['locked']:
                    debug.debug(
                        "day is locked, check if accepted transact job exists")
                    transactJobs = self.getTransactJobFromUser(user, date)
                    debug.debug(
                        "transact job is {{ {} }}".format(transactJobs))
                    found = False
                    for job in transactJobs:
                        if job['accepted'] and job['answerd']:
                            debug.debug("accepted transact job exists")
                            found = True
                            break
                    if not found:
                        debug.debug("no accepted transact job found")
                        raise DayLocked(
                            "Day is locked. You can't delete the Job")
        db.deleteWorker(user, date)

    def lockUser(self, username, locked):
        debug.info("lock user {{ {} }} for credit with status {{ {} }}".format(
            username, locked))
        user = self.getUser(username)
        debug.debug("user is {{ {} }}".format(user))
        user.updateData({'locked': locked})
        db.updateUser(user)
        retVal = self.getUser(username)
        debug.debug("locked user is {{ {} }}".format(retVal))
        return retVal

    def updateConfig(self, username, data):
        debug.info(
            "update config of user {{ {} }} with config {{ {} }}".format(username, data))
        user = self.getUser(username)
        debug.debug("user is {{ {} }}".format(user))
        user.updateData(data)
        db.updateUser(user)
        retVal = self.getUser(username)
        debug.debug("updated config of user is {{ {} }}".format(retVal))
        return retVal

    def __updateDataFromLDAP(self, user):
        debug.info("update data from ldap for user {{ {} }}".format(user))
        groups = ldap.getGroup(user.uid)
        debug.debug("ldap gorups are {{ {} }}".format(groups))
        user_data = ldap.getUserData(user.uid)
        debug.debug("ldap data is {{ {} }}".format(user_data))
        user_data['gruppe'] = groups
        user_data['group'] = groups
        user.updateData(user_data)
        db.updateUser(user)

    def autoLock(self, user):
        debug.info("start autolock of user {{ {} }}".format(user))
        if user.autoLock:
            debug.debug("autolock is active")
            credit = user.getGeruecht(year=datetime.now().year).getSchulden()
            limit = -1*user.limit
            if credit <= limit:
                debug.debug(
                    "credit {{ {} }} is more than user limit {{ {} }}".format(credit, limit))
                debug.debug("lock user")
                user.updateData({'locked': True})
                debug.debug("send mail to user")
                emailController.sendMail(user)
            else:
                debug.debug(
                    "cretid {{ {} }} is less than user limit {{ {} }}".format(credit, limit))
                debug.debug("unlock user")
                user.updateData({'locked': False})
        db.updateUser(user)

    def addAmount(self, username, amount, year, month, finanzer=False):
        debug.info("add amount {{ {} }} to user {{ {} }} no month {{ {} }}, year {{ {} }}".format(
            amount, username, month, year))
        user = self.getUser(username)
        debug.debug("user is {{ {} }}".format(user))
        if user.uid == 'extern':
            debug.debug("user is extern user, so exit add amount")
            return
        if not user.locked or finanzer:
            debug.debug("user is not locked {{ {} }} or is finanzer execution {{ {} }}".format(
                user.locked, finanzer))
            user.addAmount(amount, year=year, month=month)
            creditLists = user.updateGeruecht()
            debug.debug("creditList is {{ {} }}".format(creditLists))
            for creditList in creditLists:
                debug.debug("update creditlist {{ {} }}".format(creditList))
                db.updateCreditList(creditList)
        debug.debug("do autolock")
        self.autoLock(user)
        retVal = user.getGeruecht(year)
        debug.debug("updated creditlists is {{ {} }}".format(retVal))
        return retVal

    def addCredit(self, username, credit, year, month):
        debug.info("add credit {{ {} }} to user {{ {} }} on month {{ {} }}, year {{ {} }}".format(
            credit, username, month, year))
        user = self.getUser(username)
        debug.debug("user is {{ {} }}".format(user))
        if user.uid == 'extern':
            debug.debug("user is extern user, so exit add credit")
            return
        user.addCredit(credit, year=year, month=month)
        creditLists = user.updateGeruecht()
        debug.debug("creditlists are {{ {} }}".format(creditLists))
        for creditList in creditLists:
            debug.debug("update creditlist {{ {} }}".format(creditList))
            db.updateCreditList(creditList)
        debug.debug("do autolock")
        self.autoLock(user)
        retVal = user.getGeruecht(year)
        debug.debug("updated creditlists are {{ {} }}".format(retVal))
        return retVal

    def getAllUsersfromDB(self):
        debug.info("get all users from database")
        users = db.getAllUser()
        debug.debug("users are {{ {} }}".format(users))
        for user in users:
            try:
                debug.debug("update data from ldap")
                self.__updateDataFromLDAP(user)
            except:
                pass
            debug.debug("update creditlists")
            self.__updateGeruechte(user)
        retVal = db.getAllUser(extern=True)
        debug.debug("all users are {{ {} }}".format(retVal))
        return retVal

    def checkBarUser(self, user):
        debug.info("check if user {{ {} }} is baruser")
        date = datetime.now()
        zero = date.replace(hour=0, minute=0, second=0, microsecond=0)
        end = zero + timedelta(hours=12)
        startdatetime = date.replace(
            hour=12, minute=0, second=0, microsecond=0)
        if date > zero and end > date:
            startdatetime = startdatetime - timedelta(days=1)
        enddatetime = startdatetime + timedelta(days=1)
        debug.debug("startdatetime is {{ {} }} and enddatetime is {{ {} }}".format(
            startdatetime, end))
        result = False
        if date >= startdatetime and date < enddatetime:
            result = db.getWorker(user, startdatetime)
        debug.debug("worker is {{ {} }}".format(result))
        return True if result else False

    def getUser(self, username):
        debug.info("get user {{ {} }}".format(username))
        user = db.getUser(username)
        debug.debug("user is {{ {} }}".format(user))
        groups = ldap.getGroup(username)
        debug.debug("groups are {{ {} }}".format(groups))
        user_data = ldap.getUserData(username)
        debug.debug("user data from ldap is {{ {} }}".format(user_data))
        user_data['gruppe'] = groups
        user_data['group'] = groups
        if user is None:
            debug.debug("user not exists in database -> insert into database")
            user = User(user_data)
            db.insertUser(user)
        else:
            debug.debug("update database with user")
            user.updateData(user_data)
            db.updateUser(user)
        user = db.getUser(username)
        self.__updateGeruechte(user)
        debug.debug("user is {{ {} }}".format(user))
        return user

    def __updateGeruechte(self, user):
        debug.debug("update creditlists")
        user.getGeruecht(datetime.now().year)
        creditLists = user.updateGeruecht()
        debug.debug("creditlists are {{ {} }}".format(creditLists))
        if user.getGeruecht(datetime.now().year).getSchulden() != 0:
            for creditList in creditLists:
                debug.debug("update creditlist {{ {} }}".format(creditList))
                db.updateCreditList(creditList)

    def sendMail(self, username):
        debug.info("send mail to user {{ {} }}".format(username))
        if type(username) == User:
            user = username
        if type(username) == str:
            user = db.getUser(username)
        retVal = emailController.sendMail(user)
        debug.debug("send mail is {{ {} }}".format(retVal))
        return retVal

    def sendAllMail(self):
        debug.info("send mail to all user")
        retVal = []
        users = db.getAllUser()
        debug.debug("users are {{ {} }}".format(users))
        for user in users:
            retVal.append(self.sendMail(user))
        debug.debug("send mails are {{ {} }}".format(retVal))
        return retVal

    def modifyUser(self, user, ldap_conn, attributes):
        debug.info("modify user {{ {} }} with attributes {{ {} }} with ldap_conn {{ {} }}".format(
            user, attributes, ldap_conn))
        try:
            if 'username' in attributes:
                debug.debug("change username, so change first in database")
                db.changeUsername(user, attributes['username'])
            ldap.modifyUser(user, ldap_conn, attributes)
            if 'username' in attributes:
                retVal = self.getUser(attributes['username'])
                debug.debug("user is {{ {} }}".format(retVal))
                return retVal
            else:
                retVal = self.getUser(user.uid)
                debug.debug("user is {{ {} }}".format(retVal))
                return retVal
        except UsernameExistLDAP as err:
            debug.debug(
                "username exists on ldap, rechange username on database", exc_info=True)
            db.changeUsername(user, user.uid)
            raise Exception(err)
        except LDAPExcetpion as err:
            if 'username' in attributes:
                db.changeUsername(user, user.uid)
                raise Exception(err)
        except Exception as err:
            raise Exception(err)

    def validateUser(self, username, password):
        debug.info("validate user {{ {} }}".format(username))
        ldap.login(username, password)

    def loginUser(self, username, password):
        debug.info("login user {{ {} }}".format(username))
        try:
            user = self.getUser(username)
            debug.debug("user is {{ {} }}".format(user))
            user.password = password
            ldap.login(username, password)
            ldap_conn = ldap.bind(user, password)
            return user, ldap_conn
        except PermissionDenied as err:
            debug.debug("permission is denied", exc_info=True)
            raise err