# Adobe Connect -lecture, 11.10.2021
print("Repetition statements today!")

# basic for loop, numbers 0-9
for x in range(10):
    print(f"Cycle number: {x}")


print()

# we can also have two numbers for the
# for loop's range
# example: years from 2016 => 2021
start = 2016
end = 2021

for year in range(start, end + 1):
    print(year)

# NEW FILE

# initalize empty string
text = ""

# build text in a loop
for year in range(2016, 2021):
    text = text + str(year) + "-"

# print the result
print(text)

# NEW FILE

# initalize empty string
text = ""

# build text in a loop, incremented by two years after reach cycle
for year in range(2012, 2021, 2):
    text = text + str(year) + "-"

# print the result
print(text)

# NEW FILE

counter = 1

while counter <= 10:
    print(counter)
    counter = counter + 1

# NEW FILE

# run the application as long as the user wants to

# start the program, use this variable to determine if application is running
running = True

while running:
    print("Let's run the application!")

    # do the actual program
    number = input("Give a number:\n")
    number = int(number)

    result = number * 2
    print(f"Your number multiplied by 2 equals to {result}!")

    # check if the user wants to continue or quit
    choice = input("Would you like to continue? (y/n)\n")

    if choice == 'n':
        running = False

print("Thank you for using our application!")

# NEW FILE

# nested loops
print("Start of the application!")

for x in range(3):
    print(f"FIRST LOOP: x = {x}")

    for y in range(5):
        print(f"\tNested loop: y = {y}")

print("End of the application!")

# NEW FILE

# nested loops

# five persons
# each person says numbers 1-4 on their turn
# after all have spoken, print "Everyone has spoken!"

# go through all persons
for person in range(5):
    print(f"Person {person + 1} turn!")

    # say the numbers for each person
    for number in range(4):
        print(f"Person {person + 1} says: {number + 1}")

print("Everyone has spoken!")

# NEW FILE

# demonstrating the break command
# the loop ends earlier when using break-command
print("Application start!")

for x in range(20):
    if x == 7:
        break

    print(x)


print("Application ends!")

# NEW FILE

# continue-command will skip the active iteration if called
print("Application start!")

for x in range(20):
    if x == 7:
        continue

    print(x)


print("Application ends!")

# NEW FILE

# compound interest (interset of interst)

# interest of interest (compound interest)
# for example if you have starting money of 10000
# and 7% yearly interest, let's use loop to calculate how much
# new money we have after the saving

# we can do this with loops, without the mathematics...
start_money = 15000

# new money added to savings in the beginning of each year
yearly_money = 2000
total = start_money

# use decimal format to INCREASE THE MONEY 7% a year
interest = 1.07

# ten years!
for year in range(10):
    total = total + yearly_money
    total = total * interest

total = round(total, 2)
print(total)

new_money = total - start_money - (yearly_money * 10)
print(new_money)

# NEW FILE

# interest of interest (compound interest)
# for example if you have starting money of 10000
# and 7% yearly interest, let's use loop to calculate how much
# new money we have after the saving

# we can do this with loops, without the mathematics...
start_money = 15000

# new money added to savings in the beginning of each year
yearly_money = 2000
total = start_money

# use decimal format to INCREASE THE MONEY 7% a year
interest = 1.07

# what is our save target
target_save = 50000

# keep track of our winnings so far
winnings = 0

# twenty years!
for year in range(20):
    total = total + yearly_money
    total = total * interest

    # the winnings so far in this CYCLE
    winnings = total - start_money - ((year + 1) * yearly_money)

    # check if our winnings are already enough
    if winnings >= target_save:
        print("YES! MONEY TARGET ACHIEVED!")
        print(f"It took {year + 1} years!")
        break


# check if we didn't match our target
if winnings < target_save:
    print("It's not possible to get this saving with these parameters.")
    print("Start money, amount of years, interest rate, target save etc.")

total = round(total, 2)
print(total)

new_money = total - start_money - (yearly_money * 10)
print(new_money)