package musicrepos.tests;

import java.util.List;
import java.util.Random;

import junit.framework.TestCase;
import musicrepos.mvc.model.User;
import musicrepos.mvc.model.UserDAO;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class TestUserDAO extends TestCase {

	private String invalidLogin;

	private List<User> allUsers;

	private Random randomGenerator;

	private UserDAO dao;

	@Before
	public void setUp() {
		dao = new UserDAO();
		allUsers = dao.getUsersList();

		invalidLogin = findInvalidUserName(dao);

		randomGenerator = new Random();
	}

	private String findInvalidUserName(UserDAO dao) {
		boolean found = false;
		String login = "_invalid";
		int count = 0;

		while (!found) {
			if (dao.getUser(login) == null) {
				found = true;
			} else {
				// Próxima tentativa de keyword inválida
				login = "_invalid" + count++;
			}
		}
		return login;
	}

	@Test
	public void testFindUserByName() {
		if (!allUsers.isEmpty()) {
			User user = allUsers.get(randomGenerator.nextInt(allUsers.size()));
			boolean answer = dao.exists("name", user.getName());
			assertTrue(answer);
		}
	}

	@Test
	public void testFindUserByLogin() {
		if (!allUsers.isEmpty()) {
			User user = allUsers.get(randomGenerator.nextInt(allUsers.size()));
			boolean answer = dao.exists("login", user.getLogin());
			assertTrue(answer);
		}
	}

	@Test
	public void testFindUserByEmail() {
		if (!allUsers.isEmpty()) {
			User user = allUsers.get(randomGenerator.nextInt(allUsers.size()));
			boolean answer = dao.exists("email", user.getEmail());
			assertTrue(answer);
		}
	}

	@Test
	public void testFindUnexistentUser() {
		boolean answer = dao.exists("login", invalidLogin);
		assertFalse(answer);
	}

	@After
	public void tearDown() {
		dao.closeSession();
	}
}