from geruecht import db
from datetime import datetime

class CreditList(db.Model):
    """ DataBase Object Credit List:

        Attributes:
            id: id in Database. Is the Primary Key
            <month>_guthaben:   Credit of the Month.
            <month>_schulden:   Debt of the Month.

            last_schulden:  Debt or Credit of last Year.
            year:   Year of all Credits and Debts.
            user_id:    id from the User.
    """
    id = db.Column(db.Integer, primary_key=True)

    jan_guthaben = db.Column(db.Integer, nullable=False, default=0)
    jan_schulden = db.Column(db.Integer, nullable=False, default=0)

    feb_guthaben = db.Column(db.Integer, nullable=False, default=0)
    feb_schulden = db.Column(db.Integer, nullable=False, default=0)

    maer_guthaben = db.Column(db.Integer, nullable=False, default=0)
    maer_schulden = db.Column(db.Integer, nullable=False, default=0)

    apr_guthaben = db.Column(db.Integer, nullable=False, default=0)
    apr_schulden = db.Column(db.Integer, nullable=False, default=0)

    mai_guthaben = db.Column(db.Integer, nullable=False, default=0)
    mai_schulden = db.Column(db.Integer, nullable=False, default=0)

    jun_guthaben = db.Column(db.Integer, nullable=False, default=0)
    jun_schulden = db.Column(db.Integer, nullable=False, default=0)

    jul_guthaben = db.Column(db.Integer, nullable=False, default=0)
    jul_schulden = db.Column(db.Integer, nullable=False, default=0)

    aug_guthaben = db.Column(db.Integer, nullable=False, default=0)
    aug_schulden = db.Column(db.Integer, nullable=False, default=0)

    sep_guthaben = db.Column(db.Integer, nullable=False, default=0)
    sep_schulden = db.Column(db.Integer, nullable=False, default=0)

    okt_guthaben = db.Column(db.Integer, nullable=False, default=0)
    okt_schulden = db.Column(db.Integer, nullable=False, default=0)

    nov_guthaben = db.Column(db.Integer, nullable=False, default=0)
    nov_schulden = db.Column(db.Integer, nullable=False, default=0)

    dez_guthaben = db.Column(db.Integer, nullable=False, default=0)
    dez_schulden = db.Column(db.Integer, nullable=False, default=0)

    last_schulden = db.Column(db.Integer, nullable=False, default=0)

    year = db.Column(db.Integer, nullable=False, default=datetime.now().year)

    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)

    def getSchulden(self):
        """ Get Schulden

            This function calculate the total amount of them self.
            From the Credit of the Month will the Amount of the Month subtract.
            Finaly all Month will added together.
            At Last the amount from last year will be subtract.

            If the Return Value is negativ, the User has an Credit, else the User has an amount.

            Returns:
                double of the calculated amount
        """
        jan = self.jan_guthaben - self.jan_schulden
        feb = self.feb_guthaben - self.feb_schulden
        maer = self.maer_guthaben - self.maer_schulden
        apr = self.apr_guthaben - self.apr_schulden
        mai = self.mai_guthaben - self.mai_schulden
        jun = self.jun_guthaben - self.jun_schulden
        jul = self.jul_guthaben - self.jul_schulden
        aug = self.aug_guthaben - self.aug_schulden
        sep = self.sep_guthaben - self.sep_schulden
        okt = self.okt_guthaben - self.okt_schulden
        nov = self.nov_guthaben - self.nov_schulden
        dez = self.dez_guthaben - self.dez_schulden

        sum = jan + feb + maer + apr + mai + jun + jul + aug + sep + okt + nov + dez - self.last_schulden
        return sum

    def getMonth(self, month=datetime.now().month):
        """ Get Amount from month

            This function returns the amount and credit of the month.
            By default is month the actual month

            Args:
                month:  which month you want to get the amount(1-12)

            Returns:
                double (credit, amount)
        """
        retValue = None

        if month == 1:
            retValue = (self.jan_guthaben, self.jan_schulden)
        elif month == 2:
            retValue = (self.feb_guthaben, self.feb_schulden)
        elif month == 3:
            retValue = (self.mear_guthaben, self.maer_schulden)
        elif month == 4:
            retValue = (self.apr_guthaben, self.apr_schulden)
        elif month == 5:
            retValue = (self.mai_guthaben, self.mai_schulden)
        elif month == 6:
            retValue = (self.jun_guthaben, self.jun_schulden)
        elif month == 7:
            retValue = (self.jul_guthaben, self.jul_schulden)
        elif month == 8:
            retValue = (self.aug_guthaben, self.aug_schulden)
        elif month == 9:
            retValue = (self.sep_guthaben, self.sep_schulden)
        elif month == 10:
            retValue = (self.okt_guthaben, self.okt_schulden)
        elif month == 11:
            retValue = (self.nov_guthaben, self.nov_schulden)
        elif month == 12:
            retValue = (self.dez_guthaben, self.dez_schulden)

        return retValue

    def addAmount(self, amount, month=datetime.now().month):
        """ Add Amount

            This function add an amount to a month and returns the credit and amount of the month.
            By default is month the actual month.

            Args:
                amount: the amount which is to add
                month:  in which month to add the amount (1-12)

            Returns:
                double (credit, amount)
        """
        if month == 1:
            self.jan_schulden += amount
            retValue = (self.jan_guthaben, self.jan_schulden)
        elif month == 2:
            self.feb_schulden += amount
            retValue = (self.feb_guthaben, self.feb_schulden)
        elif month == 3:
            self.maer_schulden += amount
            retValue = (self.maer_guthaben, self.maer_schulden)
        elif month == 4:
            self.apr_schulden += amount
            retValue = (self.apr_guthaben, self.apr_schulden)
        elif month == 5:
            self.mai_schulden += amount
            retValue = (self.mai_guthaben, self.mai_schulden)
        elif month == 6:
            self.jun_schulden += amount
            retValue = (self.jun_guthaben, self.jun_schulden)
        elif month == 7:
            self.jul_schulden += amount
            retValue = (self.jul_guthaben, self.jul_schulden)
        elif month == 8:
            self.aug_schulden += amount
            retValue = (self.aug_guthaben, self.aug_schulden)
        elif month == 9:
            self.sep_schulden += amount
            retValue = (self.sep_guthaben, self.sep_schulden)
        elif month == 10:
            self.okt_schulden += amount
            retValue = (self.okt_guthaben, self.okt_schulden)
        elif month == 11:
            self.nov_schulden += amount
            retValue = (self.nov_guthaben, self.nov_schulden)
        elif month == 12:
            self.dez_schulden += amount
            retValue = (self.dez_guthaben, self.dez_schulden)

        db.session.commit()

        return retValue

    def addCredit(self, credit, month=datetime.now().month):
        """ Add Credit

            This function add an credit to a month and returns the credit and amount of the month.
            By default is month the actual month.

            Args:
                credit: the credit which is to add
                month:  in which month to add the credit (1-12)

            Returns:
                double (credit, amount)
        """
        if month == 1:
            self.jan_guthaben += credit
            retValue = (self.jan_guthaben, self.jan_schulden)
        elif month == 2:
            self.feb_guthaben += credit
            retValue = (self.feb_guthaben, self.feb_schulden)
        elif month == 3:
            self.maer_guthaben += credit
            retValue = (self.maer_guthaben, self.maer_schulden)
        elif month == 4:
            self.apr_guthaben += credit
            retValue = (self.apr_guthaben, self.apr_schulden)
        elif month == 5:
            self.mai_guthaben += credit
            retValue = (self.mai_guthaben, self.mai_schulden)
        elif month == 6:
            self.jun_guthaben += credit
            retValue = (self.jun_guthaben, self.jun_schulden)
        elif month == 7:
            self.jul_guthaben += credit
            retValue = (self.jul_guthaben, self.jul_schulden)
        elif month == 8:
            self.aug_guthaben += credit
            retValue = (self.aug_guthaben, self.aug_schulden)
        elif month == 9:
            self.sep_guthaben += credit
            retValue = (self.sep_guthaben, self.sep_schulden)
        elif month == 10:
            self.okt_guthaben += credit
            retValue = (self.okt_guthaben, self.okt_schulden)
        elif month == 11:
            self.nov_guthaben += credit
            retValue = (self.nov_guthaben, self.nov_schulden)
        elif month == 12:
            self.dez_guthaben += credit
            retValue = (self.dez_guthaben, self.dez_schulden)

        db.session.commit()

        return retValue

    def toJSON(self):
        """ Create Dic to dump in JSON

            Returns:
                A Dic with static Attributes.
        """
        dic = {
            "jan": {
                "credit": self.jan_guthaben,
                "depts": self.jan_schulden},
            "feb": {
                "credit": self.feb_guthaben,
                "depts": self.feb_schulden},
            "maer": {
                "credit": self.maer_guthaben,
                "depts": self.maer_schulden},
            "apr": {
                "credit": self.apr_guthaben,
                "depts": self.apr_schulden},
            "mai": {
                "credit": self.mai_guthaben,
                "depts": self.mai_schulden},
            "jun": {
                "credit": self.jun_guthaben,
                "depts": self.jun_schulden},
            "jul": {
                "credit": self.jul_guthaben,
                "depts": self.jul_schulden},
            "aug": {
                "credit": self.aug_guthaben,
                "depts": self.aug_schulden},
            "sep": {
                "credit": self.sep_guthaben,
                "depts": self.sep_schulden},
            "okt": {
                "credit": self.okt_guthaben,
                "depts": self.okt_schulden},
            "nov": {
                "credit": self.nov_guthaben,
                "depts": self.nov_schulden},
            "dez": {
                "credit": self.dez_guthaben,
                "depts": self.dez_schulden},
        }
        return dic