package it.cavallium.strangedb.tests;

import it.cavallium.strangedb.java.database.DatabaseJava;
import it.cavallium.strangedb.java.objects.lists.ListQuery;
import it.cavallium.strangedb.java.objects.lists.ValuePointer;
import it.cavallium.strangedb.java.objects.lists.operations.Equals;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;

import static org.junit.Assert.assertNotEquals;

public class QueryTests {

	public static final String constantFirstName = "Jesus christ this is a very strange first name";
	public static final String constantUsername = "is this an username?";
	public static final String constantBio = "and is this a bio??? Are you mad?";
	private Path path1;
	private Path path2;
	private Path path3;
	private DatabaseJava db;

	@Before
	public void setUp() throws Exception {
		path1 = Files.createTempFile("db-tests-data-", ".db");
		path2 = Files.createTempFile("db-tests-blocks-", ".db");
		path3 = Files.createTempFile("db-tests-references-", ".db");
		db = new DatabaseJava(path1, path2, path3);
	}

	@Test
	public void shouldCreateListAndQuery() throws IOException {
		ListContainer root = db.loadRoot((db) -> new ListContainer(db, 1000));
		ListQuery query = ListQuery.create(ValuePointer.ofField(User.class, "firstName"), Equals.to(constantFirstName))
						.and(ValuePointer.ofField(User.class, "username"), Equals.to(constantUsername))
						.and(ValuePointer.ofField(User.class, "fullInfo").field(UserFullInfo.class, "bio"), Equals.to(constantBio));
		long time1 = System.currentTimeMillis();
		ArrayList<User> elements = root.usersList.query(query).asList();
		System.out.println("Time elapsed: " + (System.currentTimeMillis() - time1));
		System.out.println("Found " + elements.size() + " elements. First 5 items:");
		assertNotEquals(elements.size(), 0);
		for (int i = 0; i < (elements.size() > 10 ? 10 : elements.size()); i++) {
			System.out.println(elements.get(i));
		}
		db.close();
	}

	@After
	public void tearDown() throws Exception {
		Files.deleteIfExists(path1);
		Files.deleteIfExists(path2);
		Files.deleteIfExists(path3);
	}
}