import traceback
from datetime import timedelta

from geruecht.exceptions import DatabaseExecption


class Base:
    def getWorker(self, user, date):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("select * from bardienste where user_id={} and startdatetime='{}'".format(user.id, date))
            data = cursor.fetchone()
            return {"user": user.toJSON(), "startdatetime": data['startdatetime'], "enddatetime": data['enddatetime'], "start": { "year": data['startdatetime'].year, "month": data['startdatetime'].month, "day": data['startdatetime'].day}, "job_kind": self.getJobKind(data['job_kind']) if data['job_kind'] != None else None} if data else None
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))

    def getWorkers(self, date):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("select * from bardienste where startdatetime='{}'".format(date))
            data = cursor.fetchall()
            retVal = []
            return [{"user": self.getUserById(work['user_id']).toJSON(), "startdatetime": work['startdatetime'], "enddatetime": work['enddatetime'], "start": { "year": work['startdatetime'].year, "month": work['startdatetime'].month, "day": work['startdatetime'].day}, "job_kind": self.getJobKind(work['job_kind']) if work['job_kind'] != None else None} for work in data]
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))

    def getWorkersWithJobKind(self, date, job_kind):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("select * from bardienste where startdatetime='{}' and job_kind={} {}".format(date, job_kind['id'], "or job_kind='null'" if job_kind['id'] is 1 else ''))
            data = cursor.fetchall()
            retVal = []
            return [{"user": self.getUserById(work['user_id']).toJSON(), "startdatetime": work['startdatetime'], "enddatetime": work['enddatetime'], "start": { "year": work['startdatetime'].year, "month": work['startdatetime'].month, "day": work['startdatetime'].day}, "job_kind": self.getJobKind(work['job_kind']) if work['job_kind'] != None else None} for work in data]
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))

    def setWorker(self, user, date, job_kind=None):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("insert into bardienste (user_id, startdatetime, enddatetime, job_kind) values ({},'{}','{}', {})".format(user.id, date, date + timedelta(days=1), job_kind['id'] if job_kind != None else 'NULL'))
            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 changeWorker(self, from_user, to_user, date):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("update bardienste set user_id={} where user_id={} and startdatetime='{}'".format(to_user['id'], from_user['id'], date))
            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 deleteAllWorkerWithJobKind(self, date, job_kind):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("delete from bardienste where startdatetime='{}' and job_kind={}".format(date, job_kind['id']))
            self.db.connection.commit()
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went wrong with Database: {}".format(err))

    def deleteWorker(self, user, date):
        try:
            cursor = self.db.connection.cursor()
            cursor.execute("delete from bardienste where user_id={} and startdatetime='{}'".format(user.id, date))
            self.db.connection.commit()
        except Exception as err:
            traceback.print_exc()
            self.db.connection.rollback()
            raise DatabaseExecption("Something went worng with Datatabase: {}".format(err))