package model;

import model.exceptions.OrderException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.util.*;

import static org.junit.jupiter.api.Assertions.*;

class OrderTest {

    private List<Pizza> pizzas;
    private Order order;

    @BeforeEach
    void setUp() {
        pizzas = new ArrayList<>(Arrays.asList(new Pizza(), new Pizza()));
        order = new Order("Max Mustermann", pizzas, new Date());
    }

    @Test
    void getCustomer() {
        assertEquals("Max Mustermann", order.getCustomer());
        assertNotEquals("Wrong", order.getCustomer());
    }

    @Test
    void setCustomer() {
        order.setCustomer("Max Mustermann 2");
        assertEquals("Max Mustermann 2", order.getCustomer());
        assertNotEquals("Max Mustermann", order.getCustomer());
    }

    @Test
    void getPizzas() {
        assertEquals(pizzas, order.getPizzas());
        assertNotEquals(Arrays.asList(new Pizza(), new Pizza()), order.getPizzas());
    }

    @Test
    void setPizzas() throws OrderException {
        List<Pizza> newPizzas = new ArrayList<>(Arrays.asList(new Pizza(), new Pizza()));
        order.setPizzas(newPizzas);
        assertEquals(newPizzas, order.getPizzas());
        assertNotEquals(pizzas, order.getPizzas());
    }

    /**
     * Tests if the exception is thrown when order is not in {@link model.Order.OrderState#IN_PROGRESS}
     */
    @Test
    void addPizzaAfterCompletion() {
        order.setOrderState(Order.OrderState.DELIVERD);
        assertThrows(OrderException.class, () -> order.setPizzas(pizzas));
    }

    /**
     * Tests if the pizza is added to the pizza List.
     */
    @Test
    void addPizzaBeforeCompletion() throws OrderException {
        order.addPizza(new Pizza());
    }

    @Test
    void setOrderState() {
        order.setOrderState(Order.OrderState.DELIVERD);
        assertEquals(Order.OrderState.DELIVERD, order.getOrderState());
        assertNotEquals(Order.OrderState.WAIT, order.getOrderState());
    }

    @Test
    void setDate() {
        Date today = new Date();
        Calendar c = Calendar.getInstance();
        c.setTime(today);
        c.add(Calendar.DAY_OF_MONTH, 21);
        Date currentDatePlus21d = c.getTime();
        assertThrows(IllegalArgumentException.class, () -> order.setDate(currentDatePlus21d));
        c.add(Calendar.DAY_OF_MONTH, -2);
        Date currentDatePlus19d = c.getTime();
        assertDoesNotThrow(() -> order.setDate(currentDatePlus19d));
    }
}