Python OOP Intro

class Employee:
    num_of_emps = 0
    raise_amt = 1.04

    def __init__(self, first, last, pay):
        self.first = first
        self.last = last
        self.email = first + '.' + last + '@example.com'
        self.pay = pay

        Employee.num_of_emps += 1

    def fullname(self):
        return '{} {}'.format(self.first, self.last)

    def apply_raise(self):
        self.pay = int(self.pay * self.raise_amt)

    @classmethod
    def set_raise_amount(cls, amount):
        cls.raise_amt = amount

    @classmethod
    def from_string(cls, emp_str):
        first, last, pay = emp_str.split('-')
        return cls(first, last, pay)

    @staticmethod
    def is_workday(day):
        if day.weekday() == 5 or day.weekday == 6:
            return False
        return True

    def __repr__(self):
        return "Employee('{}', '{}', '{}')".format(self.first, self.last, self.pay)

    def __str__(self):
        return '{} - {}'.format(self.fullname(), self.email)

    #More dunder/magic methods
    def __add__(self, other):
        return self.pay + other.pay

    def __len__(self):
        return len(self.fullname())


# Method resolution order
class Developer(Employee):
    raise_amt = 1.10

    def __init__(self, first, last, pay, prog_lang):
        super().__init__(first, last, pay)
        # Employee.__init__(self, first, last, pay) MULTIPLE INHERITANCE
        self.prog_lang = prog_lang


class Manager(Employee):
    def __init__(self, first, last, pay, employees=None):
        super().__init__(first, last, pay)
        if employees is None:
            self.employees = []
        else:
            self.employees = employees

    def add_emp(self, emp):
        if emp not in self.employees:
            self.employees.append(emp)

    def remove_emp(self, emp):
        if emp in self.employees:
            self.employees.remove(emp)

    def print_emp(self):
        for emp in self.employees:
            print('==>', emp.fullname())



dev_1 = Employee('Corey', 'Schafer', 50000)
dev_2 = Employee('Test', 'Bran', 60000)

print(dev_1)
print(dev_1.__repr__())



# emp_str_1 = 'John-Doe-7000'
# emp_str_2 = 'Lara-Johnson-30000'
# emp_str_3 = 'John-Tatcher-9000'

# emp_str = Employee.from_string(emp_str_3)

# print(emp_str.email)


# dev_1 = Developer('Corey', 'Schafer', 50000, 'Python')
# dev_2 = Developer('Test', 'Bran', 60000, 'Java')

# mgr_1 = Manager('Tsue', 'Gina', 90000, [dev_1])

# print(mgr_1.email)
# mgr_1.print_emp()

# isinstance(mgr_1, Developer)
# isinstance(mgr_1, Manager)
# isinstance(mgr_1, Employee)

# issubclass(Manager, Employee)
# issubclass(Employee, Manager)


# print(mgr_1.prog_lang)

# print(help(Developer))

# print(help(Developer))

# import datetime

# my_date = datetime.date(2016, 6, 7)

# print(Employee.is_workday(my_date))
# Employee.set_raise_amount(1.05)


# print(Employee.raise_amt)
# print(emp_1.raise_amt)
# print(emp_2.raise_amt)




# print('I am here')