package fr.umlv.rental;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.HashSet;
import java.util.List;
import java.util.stream.IntStream;

import org.junit.Test;

@SuppressWarnings("static-method")
public class RentalTest {
  @Test
  public void shouldCreateCarWhithModelAndYear() {
    Car car = new Car("ford mustang", 2014);
    assertEquals("ford mustang", car.getModel());
  }

  @Test(expected = NullPointerException.class)
  public void shouldGetErrorWhenCreatingCarWhithoutModel() {
    new Car(null, 2014);
  }
  
  @Test(expected=IllegalStateException.class)
  public void shouldGetErrorWhenRemovingCarOnEmptyRental() {
    CarRental rental = new CarRental();
    rental.remove(new Car("ford mustang", 2013));
  }
  
  @Test(expected = NullPointerException.class)
  public void shouldGetErrorWhenAddingNonExistentCarToRental() {
    CarRental rental = new CarRental();
    rental.add(null);
  }

  @Test
  public void shouldAddLotsOfNewCarsToRental() {
    CarRental rental = new CarRental();
    IntStream.range(0, 1_000_000).forEach(i -> rental.add(new Car("foo car", i)));
  }
  
  @Test
  public void shouldRemoveCarOfRental() {
    CarRental rental = new CarRental();
    rental.add(new Car("ford mustang", 2013));
    rental.remove(new Car("ford mustang", 2013));
    assertEquals("", rental.toString());
  }
  
  @Test
  public void shouldConvertRentalToText() {
    CarRental rental = new CarRental();
    rental.add(new Car("audi tt", 2001));
    rental.add(new Car("ford mustang", 2006));
    assertEquals("audi tt 2001\nford mustang 2006", rental.toString());
  }
  
  @Test
  public void shouldFindCarByYearInRental() {
    CarRental rental = new CarRental();
    rental.add(new Car("audi tt", 2012));
    rental.add(new Car("ford mustang", 2014));
    List<?> all = rental.findAllByYear(2014);
    assertTrue(all.contains(new Car("ford mustang", 2014)));
  }
  
  @Test
  public void shouldNotFindAnyCarWhenSearchingNonExistantYear() {
    CarRental rental = new CarRental();
    rental.add(new Car("audi tt", 2015));
    rental.add(new Car("ford mustang", 2013));
    List<?> toSell = rental.findAllByYear(2014);
    assertTrue(toSell.isEmpty());
  }
  
  @Test
  public void shouldVerifyEqualityOfIdenticalCamels() {
    Camel camel = new Camel(2014);
    assertEquals(camel, new Camel(2014));
  }
  
  @Test
  public void shouldConvertCamelToText() {
    Camel camel = new Camel(2014);
    assertEquals("camel 2014", camel.toString());
  }
  
  @Test
  public void shouldAddAndRemoveCarsOrCamelsOfRental() {
    CarRental rental = new CarRental();
    rental.add(new Car("ford mustang", 2014));
    rental.add(new Camel(2010));
    rental.remove(new Camel(2010));
    rental.remove(new Car("ford mustang", 2014));
  }
  
  @Test(expected = IllegalStateException.class)
  public void shouldGetErrorWhenRemovingCamelOnEmptyRental() {
    CarRental rental = new CarRental();
    rental.remove(new Camel(2010));
  }
  
  @Test
  public void shouldFindCarsAndCamelsByYearInRental() {
    CarRental rental = new CarRental();
    rental.add(new Car("ford mustang", 2010));
    rental.add(new Camel(2010));
    List<?> list = rental.findAllByYear(2010);
    assertTrue(list.contains(new Car("ford mustang", 2010)));
    assertTrue(list.contains(new Camel(2010)));
  }
  
  @Test
  public void shouldDistinguishBetweenCarsAndCamelWithSameYear() {
    CarRental rental = new CarRental();
    rental.add(new Car("ford mustang", 2010));
    rental.add(new Camel(2010));
    List<?> list = rental.findAllByYear(2010);
    HashSet<?> set = new HashSet<>(list);
    assertTrue(set.contains(new Car("ford mustang", 2010)));
    assertTrue(set.contains(new Camel(2010)));
  }
  
  @Test(expected=NullPointerException.class)
  public void shouldGetErrorWhenSearchingNonExistentCarInRental() {
    CarRental rental = new CarRental();
    rental.findACarByModel(null);
  }
  
  @Test
  public void shouldComputeCostInsuranceOfRental() {
    CarRental rental = new CarRental();
    rental.add(new Car("audi tt", 2001));
    rental.add(new Car("ford mustang", 2009));
    rental.add(new Camel(2013));
    rental.add(new Camel(2010));
    assertEquals(rental.insuranceCost(), 1800); //Attention, le test ne fonctionne qu'en 2017!
  }

  @Test
  public void shouldFindACarByModelInRental() {
    CarRental rental = new CarRental();
    rental.add(new Car("ford mustang", 2020));
    rental.add(new Camel(2003));
    assertEquals(new Car("ford mustang", 2020), rental.findACarByModel("ford mustang").get());
  }
  
  @Test
  public void shouldNotFindACarByNonExistantModelInRental() {
    CarRental rental = new CarRental();
    rental.add(new Car("renault alpine", 1992));
    rental.add(new Camel(1992));
    assertFalse(rental.findACarByModel("ford mustang").isPresent());
  }
}