#
# copying objects; we copy dates and times
#
# Matt Bishop, MHI 289I, Fall 2022
#
import copy

# dates
class Date:

    # create an initial value for the object
    # the default is the (UNIX/Linux) epoch
    def __init__(self, m=1, d=1, y=1970):
        self.month = m
        self.day = d
        self.year = y

    # print the date as mm/dd/yyyy
    def __str__(self):
        return "%02d/%02d/%04d" % (self.month, self.day, self.year)

# times
class Time:

    # create an initial value for the object
    # the default is midnight
    def __init__(self, h=0, m=0, s=0):
        self.hour = h
        self.minute = m
        self.second = s

    # print the time as hh:mm:ss
    def __str__(self):
        return "%02d:%02d:%02d" % (self.hour, self.minute, self.second)

# date and time together in an object
class When:

    # create an initial value for the object
    # defaults are those of the date onject
    # and the time object
    def __init__(self, d, t):
        self.date = d
        self.time = t

    # print the ddate and time as D@T where D is the
    # date as date.__str__ shows it and T is the time
    # as time.__str__ shows it
    def __str__(self):
        return str(self.date) + " @ " + str(self.time)

#
# set up two set of dates and times
#
d1 = Date(3, 10, 2019)
t1 = Time(15, 49, 12)
d2 = Date(2, 18, 2001)
t2 = Time(6, 14)

#
# show how = works
#
print("w1 = x")
# set x and assign it
x = When(d2, t2)
w1 = x
# print the values
print("x =", x)
print("w1 =", w1)
# test for sameness of x, w1
print("w1 == x is", w1 == x, end=';')
print(" w1.date == x.date is", w1.date == x.date, end=';')
print(" w1.time == x.time is", w1.time == x.time)
# test for sameness of w1 subobjects, x subobjects
print("w1 is x", w1 is x, end=';')
print(" w1.date is x.date is", w1.date is x.date, end=';')
print(" w1.time is x.time is", w1.time is x.time)
# now demonstrate it by assignments
print("Now set w1's date and time")
w1.date = d1
w1.time = t1
print("x =", x)
print("w1 =", w1)
print("------------------------")
input("Press ENTER to proceed")

#
# show how copy works
#
print("\nw2 = copy.copy(x)")
# set x and copy it
x = When(d2, t2)
w2 = copy.copy(x)
# print the values
print("x =", x)
print("w2 =", w2)
# test for sameness of x, w2
print("w2 == x is", w2 == x, end=';')
print(" w2.date == x.date is", w2.date == x.date, end=';')
print(" w2.time == x.time is", w2.time == x.time)
# test for sameness of w2 subobjects, x subobjects
print("w2 is x", w2 is x, end=';')
print(" w2.date is x.date is", w2.date is x.date, end=';')
print(" w2.time is x.time is", w2.time is x.time)
# now demonstrate it by assignments
print("Now set w2's date and time")
w2.date.month = 10
w2.time.h = 5;
print("x =", x)
print("w2 =", w2)
print("------------------------")
input("Press ENTER to proceed")

#
# show how deepcopy works
#
print("\nw3 = copy.deepcopy(x)")
# set x and (deep) copy it
x = When(d2, t2)
w3 = copy.deepcopy(x)
# print the values
print("x =", x)
print("w3 =", w3)
# test for sameness of x, w3
print("w3 == x is", w3 == x, end=';')
print(" w3.date == x.date is", w3.date == x.date, end=';')
print(" w3.time == x.time is", w3.time == x.time)
# test for sameness of w3 subobjects, x subobjects
print("w3 is x", w3 is x, end=';')
print(" w3.date is x.date is", w3.date is x.date, end=';')
print(" w3.time is x.time is", w3.time is x.time)
# now demonstrate it by assignments
print("Now set w3's date and time")
w3.date = d1
w3.time = t1
print("x = ", x)
print("w3 =", w3)
print("d1", d1, "d2", d2, "t1", t1, "t2", t2)