package model;

import model.exceptions.OrderException;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

/**
 * This class represent a typical order in our shop.
 */
public class Order {

    private String customer;
    private List<Pizza> pizzas;
    private Date date;
    private OrderState state;

    public Order(String customer, List<Pizza> pizzas, Date date) {
        this.customer = customer;
        this.pizzas = pizzas;
        this.date = date;
        state = OrderState.IN_PROGRESS;
    }

    public String getCustomer() {
        return customer;
    }

    /**
     * Set the customer. This is not possible if the order is already deliverd
     *
     * @param customer
     */
    public void setCustomer(String customer) {
        if(this.state == OrderState.IN_PROGRESS)
            this.customer = customer;
    }

    public List<Pizza> getPizzas() {
        return pizzas;
    }

    /**
     * Set the pizzas.
     *
     * @param pizzas
     * @throws OrderException if {@see state} is not in {@link OrderState#IN_PROGRESS}.
     */
    public void setPizzas(List<Pizza> pizzas) throws OrderException {
        if(this.state == OrderState.IN_PROGRESS)
            this.pizzas = pizzas;
        else throw new OrderException();
    }

    /**
     * Add pizza p to the order
     *
     * @param p
     * @throws OrderException if {@see state} is not in {@link OrderState#IN_PROGRESS}.
     */
    public void addPizza(Pizza p) throws OrderException {
        if(this.state == OrderState.IN_PROGRESS)
            this.pizzas.add(p);
        else throw new OrderException();
    }

    /**
     * @param state the state to be set.
     */
    public void setOrderState(OrderState state) {
        this.state = state;
    }

    public OrderState getOrderState() {return this.state;}

    public Date getDate() {
        return date;
    }

    /**
     * Set the Time of the Order
     *
     * @param date
     * @throws IllegalArgumentException if the Order is in the future.
     */
    public void setDate(Date date) throws IllegalArgumentException {
        Date today = new Date();
        Calendar c = Calendar.getInstance();
        c.setTime(today);
        c.add(Calendar.DAY_OF_MONTH, 20);
        Date currentDatePlus20d = c.getTime();

        if(date.before(currentDatePlus20d))
            this.date = date;
        else throw new IllegalArgumentException();
    }

    /**
     * State of the order.
     */
    public enum OrderState {
        /**
         * Customer enter all items
         */
        IN_PROGRESS,
        /**
         * Customer finish order, waiting to be prepared
         */
        WAIT,
        /**
         * Order is in preperatopion
         */
        IN_PREPERATION,
        /**
         * Order is cooked
         */
        ORDER_COMPLET,
        /**
         * Order is in delivery by the waiter or deliveryman
         */
        IN_DELIVERY,
        /**
         * Order is finished completely.
         */
        DELIVERD
    }
}