# Title: Movie program
# Author: Varun Merai
# Date: 24/06/2025
# Version: Version 1
# Purpose: Asking for the number and the price of tickets and appliying discount if more than 8 tickets bought ticket price should be(a number between $5 and $20) and number of people in the group should be (a number between 1 and 20).


print('To use this program you will enter the number of tickets you want to purchase and how much each ticket costs.')
print('If you purchase 8 or more tickets, you will receive a 25% discount off the total cost.')
print('..lets begin')

while True:
    while True:
        try:
            ticket = int(input('How many tickets are you buying? '))
            if 1 <= ticket <= 20:
                break
            else:
                print("Number of tickets must be between 1 and 20. Please try again.")
        except ValueError:
            print("Invalid input. Please enter a whole number for tickets.")

    while True:
        try:
            price = int(input('What is the ticket price ? '))
            if 5 <= price <= 20:
                break
            else:
                print("Ticket price must be between $5 and $20. Please try again.")
        except ValueError:
            print("Invalid input. Please enter a whole number for the price.")

    total_cost_before_discount = ticket * price

    if ticket >= 8:
        discount_rate = 0.25
        discount_amount = total_cost_before_discount * discount_rate
        final_price = total_cost_before_discount - discount_amount
        print(f"You recieved a discount of ${discount_amount}")
        print(f"The total amount is  (${total_cost_before_discount} - ${discount_amount})= {final_price}")
    else:
        print("No discount applied.")
        print(f"The total amount is ${total_cost_before_discount}")

    while True:
        again = input("Do you want to calculate for another group? (yes/no) ")
        if again in ['yes', 'no']:
            break
        else:
            print("Invalid input. Please enter 'yes' or 'no'.")

    if again == "no":
        break

print("The program has ended.")