import java.io.*;
import java.util.Scanner;

public class CoffeePurchasingApp
{
    public static void main(String[] args)
    {
        int choice, quantity, beverageDecision, pastryDecision, beverageChoice, pastryChoice, beverageQuantity, pastryQuantity;
        String name, couponCode;
        String[] validCoupon = {"COFFEE1", "LATTE23", "I<3JAVA", "SCONEZ", "MUFFIN!LOLOL"};
        boolean validCouponCode, validChoice, validPastry, validBeverage;

        Scanner kbd = new Scanner(System.in);
        Scanner stringScanner = new Scanner(System.in);

        System.out.println("Welcome to the Java Coffee Shop!");

        System.out.println("---Purchasing Menu---");
        System.out.println("1. Place an order");
        System.out.println("2. Check order status");
        System.out.println("3. Exit");
        System.out.println("Enter an action");

        int input = kbd.nextInt();

        boolean invalidInput = !(input == 1 || input == 2 || input == 3);


        if(invalidInput)
        {
            System.out.println("Error. Please enter a valid input");
            System.exit(0);
        }

        switch(input)
        {
            case 1:
                    printMenu();

                    System.out.println("Enter a name for the order: ");
                    Scanner keyboard = new Scanner(System.in);
                    name = keyboard.nextLine();

                    System.out.println("Enter the item number: ");
                    choice = kbd.nextInt();

                    validChoice = (choice == 1 || choice == 2 || choice == 3 || choice == 4 || choice == 5 || choice == 6);
                    if(!validChoice)
                    {
                        System.out.println("Error, please enter a valid input.");
                        System.exit(0);
                    }

                    System.out.println("Enter the quantity: ");
                    quantity = kbd.nextInt();

                    switch(choice)
                    {
                        case 1:
                                System.out.println("Would you like to add a pastry? (Enter 0 for no, or 1 for no)");
                                pastryChoice = kbd.nextInt();
                                if(pastryChoice == 0)
                                {
                                    System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                    couponCode = stringScanner.nextLine();

                                    validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                    if(validCouponCode)
                                    {
                                        System.out.println("Your code has been accepted! You will receive 20% off!");

                                    }

                                }

                                System.out.println("Great! Which one would you like?");
                                pastryDecision = kbd.nextInt();
                                validPastry = (pastryDecision == 5 || pastryDecision == 6);

                                if(!validPastry)
                                {
                                    System.out.println("Error. Please enter a valid input.");
                                    System.exit(0);
                                }

                                System.out.println("And how many?");
                                pastryQuantity = kbd.nextInt();

                                System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                couponCode = stringScanner.nextLine();

                                validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                if(validCouponCode)
                                {
                                    System.out.println("Your code has been accepted! You will receive 20% off!");

                                }

                                break;


                        case 2:
                                System.out.println("Would you like to add a pastry? (Enter 0 for no, or 1 for yes)");
                                pastryChoice = kbd.nextInt();


                                System.out.println("Great! Which one would you like?");
                                pastryDecision = kbd.nextInt();
                                validPastry = (pastryDecision == 5 || pastryDecision == 6);

                                if(!validPastry)
                                {
                                    System.out.println("Error. Please enter a valid input.");
                                    System.exit(0);
                                }

                                System.out.println("And how many?");
                                pastryQuantity = kbd.nextInt();

                                System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                couponCode = stringScanner.nextLine();

                                validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                if(validCouponCode)
                                {
                                    System.out.println("Your code has been accepted! You will receive 20% off!");

                                }


                                break;

                        case 3:
                                System.out.println("Would one you like to add a pastry? (Enter 0 for no, or 1 for yes)");
                                pastryChoice = kbd.nextInt();
                                validChoice = (choice == 1 || choice == 2 || choice == 3 || choice == 4 || choice == 5 || choice == 6);
                                if(!validChoice)
                                {
                                    System.out.println("Error, please enter a valid input.");
                                    System.exit(0);
                                }

                                if(pastryChoice == 0)
                                {
                                    System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                    couponCode = stringScanner.nextLine();

                                    validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                    if(validCouponCode)
                                    {
                                        System.out.println("Your code has been accepted! You will receive 20% off!");

                                    }

                                }

                                System.out.println("Great! Which one would you like?");
                                pastryDecision = kbd.nextInt();
                                validPastry = (pastryDecision == 5 || pastryDecision == 6);

                                if(!validPastry)
                                {
                                    System.out.println("Error. Please enter a valid input.");
                                    System.exit(0);
                                }


                                System.out.println("And how many?");
                                pastryQuantity = kbd.nextInt();

                                System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                couponCode = stringScanner.nextLine();

                                validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                if(validCouponCode)
                                {
                                    System.out.println("Your code has been accepted! You will receive 20% off!");

                                }


                                break;

                        case 4:
                                System.out.println("Would you like to add a pastry? (Enter 0 for no, or 1 for yes)");
                                pastryChoice = kbd.nextInt();
                                if(pastryChoice == 0)
                                {
                                    System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                    couponCode = stringScanner.nextLine();

                                    validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                    if(validCouponCode)
                                    {
                                        System.out.println("Your code has been accepted! You will receive 20% off!");

                                    }

                                }

                                System.out.println("Great! Which one would you like?");
                                pastryDecision = kbd.nextInt();
                                validPastry = (pastryDecision == 5 || pastryDecision == 6);

                                if(!validPastry)
                                {
                                    System.out.println("Error. Please enter a valid input.");
                                    System.exit(0);
                                }

                                System.out.println("And how many?");
                                pastryQuantity = kbd.nextInt();

                                System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                couponCode = stringScanner.nextLine();

                                validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                if(validCouponCode)
                                {
                                    System.out.println("Your code has been accepted! You will receive 20% off!");

                                }


                                break;

                        case 5:
                                System.out.println("Would you like to add a beverage? (Enter 0 for no, or 1 for yes)");
                                beverageChoice = kbd.nextInt();
                                if(beverageChoice == 0)
                                {
                                    System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                    couponCode = stringScanner.nextLine();

                                    validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                    if(validCouponCode)
                                    {
                                        System.out.println("Your code has been accepted! You will receive 20% off!");

                                    }

                                }

                                System.out.println("Great! Which one would you like?");
                                beverageDecision = kbd.nextInt();
                                validBeverage = (beverageDecision == 1 || beverageDecision == 2 || beverageDecision == 3 || beverageDecision == 4);

                                if(!validBeverage)
                                {
                                    System.out.println("Error. Please enter a valid input.");
                                    System.exit(0);
                                }

                                System.out.println("And how many?");
                                beverageQuantity = kbd.nextInt();

                                System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                couponCode = stringScanner.nextLine();

                                validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                if(validCouponCode)
                                {
                                    System.out.println("Your code has been accepted! You will receive 20% off!");

                                }


                                break;

                        case 6:
                                System.out.println("Would you like to add a beverage? (Enter 0 for no, or 1 for yes)");
                                beverageChoice = kbd.nextInt();
                                if(beverageChoice == 0)
                                {
                                    System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                    couponCode = stringScanner.nextLine();

                                    validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                    if(validCouponCode)
                                    {
                                        System.out.println("Your code has been accepted! You will receive 20% off!");

                                    }

                                }

                                System.out.println("Great! Which one would you like?");
                                beverageDecision = kbd.nextInt();
                                validBeverage = (beverageDecision == 1 || beverageDecision == 2 || beverageDecision == 3 || beverageDecision == 4);

                                if(!validBeverage)
                                {
                                    System.out.println("Error. Please enter a valid input.");
                                    System.exit(0);
                                }


                                System.out.println("And how many?");
                                beverageQuantity = kbd.nextInt();

                                System.out.println("Enter a coupon code (or press ENTER to skip): ");
                                couponCode = stringScanner.nextLine();

                                validCouponCode = (couponCode.equals(validCoupon[0]) || couponCode.equals(validCoupon[1]) || couponCode.equals(validCoupon[2]) || couponCode.equals(validCoupon[3]) || couponCode.equals(validCoupon[4]) );

                                if(validCouponCode)
                                {
                                    System.out.println("Your code has been accepted! You will receive 20% off!");

                                }


                                break;
                    }


        }

    }

    public static void printMenu()
    {
        System.out.println("Here is our menu: ");
        System.out.println("Item Number\t Item \t\t Cost ");
        System.out.println("1.\t\t Coffee \t $1.50");
        System.out.println("2.\t\t Latte \t\t $3.50");
        System.out.println("3.\t\t Cappuccino \t $3.25");
        System.out.println("4.\t\t Espresso \t $2.00");
        System.out.println("5.\t\t Scone \t\t $2.50");
        System.out.println("6.\t\t Muffin \t $3.00");
    }


}