package machine;

import java.util.*;

public class CoffeeMachine {
    private int water = 400;
    private int milk = 540;
    private int coffee = 120;
    private int cup = 9;
    private int money = 550;
    private int stateOfMach = 1;
    private Scanner scan = new Scanner(System.in);


        public String inputM(){
            String input = scan.nextLine();
            String inputCh = input.toUpperCase();
            if(inputCh.equals("1")){
                inputCh="ONE";
            }
            if(inputCh.equals("2")){
                inputCh="TWO";
            }
            if(inputCh.equals("3")){
                inputCh="TREE";
            }
            State state = State.valueOf(inputCh);
            if(stateOfMach==3){
                return input;
            }else{
                if(stateOfMach==State.getNum()){
                    return input;
                }
            }
            return "wrong";
        }

        enum State{
            BUY(1),
            FILL(1),
            TAKE(1),
            REMAINING(1),
            EXIT(1),
            BACK(2),
            ONE(2),
            TWO(2),
            TREE(2);

            int valState;

            State(int valState){
                this.valState=valState;
            }

            public int getNum(){
                return valState;
            }

        }

        public void outputFill () {
            System.out.println("The coffee machine has:");
            System.out.println(water + " of water");
            System.out.println(milk + " of milk");
            System.out.println(coffee + " of coffee beans");
            System.out.println(cup + " of disposable cups");
            System.out.println(money + " of money");
        }

        public void buyOption () {
            System.out.println("What do you want to buy? 1 - espresso, 2 - latte, 3 - cappuccino, back - to main menu: ");
            switch (inputM()) {
                case "1":
                    espresso();
                    break;
                case "2":
                    latte();
                    break;
                case "3":
                    cappuccino();
                    break;
                case "back":
                    break;
                default:
                    break;
            }
            stateOfMach = 1;
        }

        public void espresso () {
            if(water<250){
            System.out.println("Sorry, not enough water!");
            }else if(coffee<16){
            System.out.println("Sorry, not enough coffee beans!");
            }else if(cup<1){
            System.out.println("Sorry, not enough cups!");
            }else{
                water-=250;
                coffee-=16;
                cup-=1;
                money+=4;
                System.out.println("I have enough resources, making you a coffee!");
            }
        }

        public void latte () {
            if(water<350){
            System.out.println("Sorry, not enough water!");
            }else if(milk<75){
            System.out.println("Sorry, not enough milk!");
            }else if(coffee<20){
            System.out.println("Sorry, not enough coffee beans!");
            }else if(cup<1){
            System.out.println("Sorry, not enough cups!");
            }else{
                water-=350;
                milk-=75;
                coffee-=20;
                cup-=1;
                money+=7;
                System.out.println("I have enough resources, making you a coffee!");
            }
        }

        public void cappuccino () {
            if(water<200){
            System.out.println("Sorry, not enough water!");
            }else if(milk<100){
            System.out.println("Sorry, not enough milk!");
            }else if(coffee<12){
            System.out.println("Sorry, not enough coffee beans!");
            }else if(cup<1){
            System.out.println("Sorry, not enough cups!");
            }else{
                water-=200;
                milk-=100;
                coffee-=12;
                cup-=1;
                money+=6;
                System.out.println("I have enough resources, making you a coffee!");
            }
        }

        public void fillOption () {
            System.out.println("Write how many ml of water do you want to add: ");
            water+=Integer.parseInt(inputM(), 10);
            System.out.println("Write how many ml of milk do you want to add: ");
            milk+=Integer.parseInt(inputM(), 10);
            System.out.println("Write how many grams of coffee beans do you want to add: ");
            coffee+=Integer.parseInt(inputM(), 10);
            System.out.println("Write how many disposable cups of coffee do you want to add: ");
            cup+=Integer.parseInt(inputM(), 10);
            stateOfMach = 1;
        }

        public void takeOption () {
            System.out.println("I gave you "+money);
            money=0;
        }

        public void main (String[]args){
                one:
                while(true){
                System.out.println("Write action (buy, fill, take, remaining, exit): ");
                switch (inputM()) {
                    case "buy":
                        stateOfMach = 2;
                        buyOption();
                        break;
                    case "fill":
                        stateOfMach = 3;
                        fillOption();
                        break;
                    case "take":
                        takeOption();
                        break;
                    case "remaining":
                        outputFill ();
                        break;
                    case "exit":
                        outputFill ();
                        break one;
                    default:
                        break;
                }
            }
        }
    }