from geruecht.exceptions import DatabaseExecption, UsernameExistDB
from geruecht.model.user import User
import traceback

class Base:
    def getAllUser(self, extern=False, workgroups=True):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("select * from user")
            data = cursor.fetchall()

            if data:
                retVal = []
                for value in data:
                    if extern and value['uid'] == 'extern':
                        continue
                    user = User(value)
                    creditLists = self.getCreditListFromUser(user)
                    user.initGeruechte(creditLists)
                    if workgroups:
                        user.workgroups = self.getWorkgroupsOfUser(user.id)
                    retVal.append(user)
                return retVal
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))

    def getUser(self, username, workgroups=True):
        try:
            retVal = None
            cursor = self.db.connection.cursor()
            cursor.execute("select * from user where uid='{}'".format(username))
            data = cursor.fetchone()
            if data:
                retVal = User(data)
                creditLists = self.getCreditListFromUser(retVal)
                retVal.initGeruechte(creditLists)
                if workgroups:
                    retVal.workgroups = self.getWorkgroupsOfUser(retVal.id)
            if retVal.uid == username:
                return retVal
            else:
                return None
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))

    def getUserById(self, id, workgroups=True):
        try:
            retVal = None
            cursor = self.db.connection.cursor()
            cursor.execute("select * from user where id={}".format(id))
            data = cursor.fetchone()
            if data:
                retVal = User(data)
                creditLists = self.getCreditListFromUser(retVal)
                retVal.initGeruechte(creditLists)
                if workgroups:
                    retVal.workgroups = self.getWorkgroupsOfUser(retVal.id)
            return retVal
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))

    def _convertGroupToString(self, groups):
        retVal = ''
        print('groups: {}'.format(groups))
        if groups:
            for group in groups:
                if len(retVal) != 0:
                    retVal += ','
                retVal += group
        return retVal


    def insertUser(self, user):
        try:
            cursor = self.db.connection.cursor()
            groups = self._convertGroupToString(user.group)
            cursor.execute("insert into user (uid, dn, firstname, lastname, gruppe, lockLimit, locked, autoLock, mail) VALUES ('{}','{}','{}','{}','{}',{},{},{},'{}')".format(
                user.uid, user.dn, user.firstname, user.lastname, groups, user.limit, user.locked, user.autoLock, user.mail))
            self.db.connection.commit()
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))


    def updateUser(self, user):
        try:
            cursor = self.db.connection.cursor()
            print('uid: {}; group: {}'.format(user.uid, user.group))
            groups = self._convertGroupToString(user.group)
            sql = "update user set dn='{}', firstname='{}', lastname='{}', gruppe='{}', lockLimit={}, locked={}, autoLock={}, mail='{}' where uid='{}'".format(
                user.dn, user.firstname, user.lastname, groups, user.limit, user.locked, user.autoLock, user.mail, user.uid)
            print(sql)
            cursor.execute(sql)
            self.db.connection.commit()
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))

    def changeUsername(self, user, newUsername):
        try:
            cursor= self.db.connection.cursor()
            cursor.execute("select * from user where uid='{}'".format(newUsername))
            data = cursor.fetchall()
            if data:
                raise UsernameExistDB("Username already exists")
            else:
                cursor.execute("update user set uid='{}' where id={}".format(newUsername, user.id))
                self.db.connection.commit()
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))

    def getAllStatus(self):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute('select * from statusgroup')
            return cursor.fetchall()
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Databes: {}".format(err))

    def getStatus(self, name):
        try:
            cursor = self.db.connection.cursor()
            if type(name) == str:
                sql = "select * from statusgroup where name='{}'".format(name)
            elif type(name) == int:
                sql = 'select * from statusgroup where id={}'.format(name)
            else:
                raise DatabaseExecption("name as no type int or str. name={}, type={}".format(name, type(name)))
            cursor.execute(sql)
            return cursor.fetchone()
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Databes: {}".format(err))

    def setStatus(self, name):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("insert into statusgroup (name) values ('{}')".format(name))
            self.db.connection.commit()
            return self.getStatus(name)
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Databes: {}".format(err))

    def updateStatus(self, status):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("update statusgroup set name='{}' where id={}".format(status['name'], status['id']))
            self.db.connection.commit()
            return self.getStatus(status['id'])
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Databes: {}".format(err))

    def deleteStatus(self, status):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("delete from statusgroup where id={}".format(status['id']))
            self.db.connection.commit()
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Databes: {}".format(err))

    def updateStatusOfUser(self, username, status):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("update user set statusgroup={} where uid='{}'".format(status['id'], username))
            self.db.connection.commit()
            return self.getUser(username)
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Databes: {}".format(err))

    def updateVotingOfUser(self, username, voting):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("update user set voting={} where uid='{}'".format(voting, username))
            self.db.connection.commit()
            return self.getUser(username)
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Databes: {}".format(err))