package PS7;
import javax.swing.*;

public class FactoryTest {
    public static void main(String[] args) {
        ArrayQueue[] prodLine= new ArrayQueue[2];
        for (int i=0; i < 2; i++)
            prodLine[i]= new ArrayQueue();   
        
        Robot1 r= new Robot1();
        TransferCar t= new TransferCar();        
        
        StackArea[] s= new StackArea[6];
        for (int i= 0; i < s.length; i++)
            s[i]= new StackArea();
        
        int[] product= new int[2];
        for (int time=0; time < 5; time++) {
            for (int j=0; j < 2; j++)  {                    // Loop over the 2 production lines
                String text= JOptionPane.showInputDialog("Enter product (0-5) made on line " + j);
                product[j]= Integer.parseInt(text);
                for (int k=0; k < (8- 4*j); k++)           // 8 items/batch in line 0, 4 items/batch in line 1
                    prodLine[j].add(new Product(product[j])); 
            }
            // Robot picks from line 0,1,0; places product in its storage area, qty 4
            r.moveProduct(prodLine[0], s[product[0]], 4);
            r.moveProduct(prodLine[1], s[product[1]], 4);
            r.moveProduct(prodLine[0], s[product[0]], 4);
            
            // Prompt for order quantities to ship
            int[] orderQty= new int[6];
            for (int i=0; i < orderQty.length; i++) {
                String text= JOptionPane.showInputDialog("Enter qty of product " + i + " to ship:");
                orderQty[i]= Integer.parseInt(text);
            }
            // Transfer car picks and places at stretch wrapper for shipment
            // Also outputs serial numbers of all products in shipment, and backorder quantities
            t.pickProduct(s, orderQty);
        }
        System.exit(0);
    }
}

class Product {
    private int prodType;
    private int serialNbr;
    private static int lastSerialNbr;
    
    public Product(int pt) {
        prodType= pt;
        serialNbr= lastSerialNbr++;
    }
    public int getProdType() {
        return prodType; 
    }
    public int getSerialNbr() {
        return serialNbr;
    }
}

class Robot1 {
    public void moveProduct(ArrayQueue line, StackArea s, int qty) {
        // Need logic if not enough to serve qty. Can't use exceptions yet.
        for (int i=0; i< qty; i++) {
            Product p= (Product) line.remove();
            s.addToStack(p);
        }
    }
}

class TransferCar {
    private static int orderNbr= 0;
    public void pickProduct(StackArea[] s, int[] order) {
        System.out.println("Products shipped for order: " + orderNbr++);
        for (int i=0; i < 6; i++)
            for (int j=0; j < order[i]; j++) {
                Product p= (Product) s[i].getFromStack();
                System.out.println("Product " + p.getProdType() + " , serial number " + p.getSerialNbr());
            }
    }
}

class StackArea {
    private ArrayStack[] s;
    private int nextArrayStack;
    private int numObj;
    
    public StackArea() {
        s= new ArrayStack[4];
        for (int i=0; i < 4; i++)
            s[i]= new ArrayStack();
    }
    public void addToStack(Product p) {
        s[nextArrayStack].push(p);
        nextArrayStack = (nextArrayStack+1)%4;
        numObj++;
    }
    public Product getFromStack() {
        if (nextArrayStack==0)
            nextArrayStack = 3;
        else
            nextArrayStack = nextArrayStack-1;
        
        numObj--;
        
        return (Product) s[nextArrayStack].pop();
    }
    
    public int getTotalSize() {
        return numObj;
    }
}