from commissionemployee import CommissionEmployee
from decimal import Decimal

class SalariedCommissionEmployee(CommissionEmployee):
    """
    An employee who gets paid a salary plus a commission.
    """
    def __init__(self, first_name, last_name, ssn, 
                 gross_sales, commission_rate, base_salary):
        """
        Construct a SalariedCommissionEmployee object.
        @param first_name the employee's first name.
        @param last_name the employee's last name.
        @param ssn the employee's SSN.
        @param gross_sales the employee's gross sales..
        @param commission_rate the employee's commission rate.
        @param base_salary the employee's base salary.
        """
        # First initialize the base class object.
        super().__init__(first_name, last_name, ssn, 
                         gross_sales, commission_rate)

        # Then the attributes of this subclass.
        self.base_salary = base_salary  # validate via property

    @property
    def base_salary(self):
        return self._base_salary

    @base_salary.setter
    def base_salary(self, salary):
        """
        Set base salary or raise ValueError if invalid.
        @salary the salary.
        """
        if salary < Decimal('0.00'):
            raise ValueError('Base salary must be >= to 0')
        
        self._base_salary = salary

    def earnings(self):
        """
        @return the employee's earnings.
        """
        return super().earnings() + self.base_salary

    def __repr__(self):
        """
        @return the string representation of an SalariedCommissionEmployee object.
        """
        return ('Salaried' + super().__repr__() +      
            f'\nbase salary: ${self.base_salary:,.2f}')



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# (C) Copyright 2019 by Deitel & Associates, Inc. and                    #
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# Additional material (C) Copyright 2024 by Ronald Mak