package fr.plil.sio.persistence.jpa;
  
  import fr.plil.sio.persistence.api.*;

  import javax.transaction.Transactional;

  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.boot.test.context.SpringBootTest;
  import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
  
  import static org.junit.Assert.*;
  

  @Transactional

  @RunWith(SpringJUnit4ClassRunner.class)
  @SpringBootTest
  public class GroupServiceTest {
  
      @Autowired
      private GroupService groupService;
  
      @Autowired
      private UserService userService;
  
      @Autowired
      private RightService rightService;
  
      private Right parent;
  
      @Before
      public void before() {
          parent = rightService.create("parent");
          rightService.create("sibling", parent);
          groupService.create("group");
      }
  
      @Test
      public void testCreateGroupAndFindByName() {
          Group group = groupService.findByName("group");
          assertEquals("group", group.getName());
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testCreateGroupFailsWhenNameNull() {
          groupService.create(null);
      }
  
      @Test(expected = IllegalStateException.class)
      public void testCreateFailsWhenSameGroupUserAlreadyPresent() {
          groupService.create("group");
      }
  
      @Test
      public void testDeleteGroup() {
          assertTrue(groupService.delete("group"));
          assertNull(groupService.findByName("group"));
          assertFalse(groupService.delete("group"));
      }
  
      @Test
      public void testDeleteNotExistingGroup() {
          assertFalse(groupService.delete("not-a-group"));
      }
  
  
      @Test(expected = IllegalArgumentException.class)
      public void testDeleteGroupFailsIfNameNull() {
          groupService.delete(null);
      }
  
      @Test
      public void deleteGroupDoesDeleteUsers() {
          userService.create("user1", "group");

          userService.create("user2", "group");

          assertNotNull(userService.findByName("user1"));
          assertNotNull(userService.findByName("user2"));
          groupService.delete("group");
          assertNull(userService.findByName("user1"));
          assertNull(userService.findByName("user2"));
      }
  
      public void testFindByNameIfGroupNotFound() {
          assertNull(groupService.findByName("unknown"));
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testFindByNameFailsIfNameNull() {
          groupService.findByName(null);
      }
  
      @Test
      public void testAddRight() {
          assertTrue(groupService.addRight("group", parent));
          Group group = groupService.findByName("group");
          assertEquals(1, group.getRights().size());
          assertEquals("parent", group.getRights().get(0).getName());

      }
  
      @Test
      public void testAddRightIfAlreadyPresent() {
          assertTrue(groupService.addRight("group", parent));
          assertFalse(groupService.addRight("group", parent));
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testAddRightFailsIfGroupNameNull() {
          groupService.addRight(null, parent);
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testAddRightFailsIfRightNull() {
          groupService.addRight("group", null);
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testAddRightFailsIfGroupNotInDatabase() {
          groupService.addRight("not-a-group", null);
      }
  
      @Test
      public void testRemoveRight() {
          assertTrue(groupService.addRight("group", parent));
          Group group = groupService.findByName("group");
          assertEquals(1, group.getRights().size());
          assertTrue(groupService.removeRight("group", parent));
          group = groupService.findByName("group");
          assertEquals(0, group.getRights().size());
      }
  

      @Test(expected = IllegalArgumentException.class)
      public void testRemoveRightIfNotInDatabase() {

          Right right = new Right();
          right.setName("not-a-right");
          assertFalse(groupService.removeRight("group", right));
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testRemoveRightFailsIfGroupNameNull() {
          groupService.removeRight(null, parent);
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testRemoveRightFailsIfRightNull() {
          groupService.removeRight("group", null);
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testRemoveRightFailsIfGroupNotInDatabase() {
          groupService.removeRight("not-a-group", null);
      }
  }