/*******************************************************************************
 * Copyright (C) 2021 the Eclipse BaSyx Authors
 * 
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 * 
 * SPDX-License-Identifier: EPL-2.0
 ******************************************************************************/
package org.eclipse.basyx.regression.sqlproxy;

import static org.junit.Assert.assertTrue;

import java.util.Arrays;
import java.util.Collection;

import org.eclipse.basyx.tools.sqlproxy.SQLRootElement;
import org.junit.Test;


/**
 * Test SQL collection element implementation (set operations)
 * 
 * @author kuhn
 *
 */
public class SQLProxyTestCollectionSetOperations {

	
	/**
	 * Store SQL root element reference
	 * - An SQL root element is the main gateway to a SQL database
	 */
	protected SQLRootElement sqlRootElement = null;

	
	/**
	 * Test basic operations
	 */
	@Test
	public void test() throws Exception {
		// Create SQL root element
		sqlRootElement = new SQLRootElement(SQLConfig.SQLUSER, SQLConfig.SQLPW,  "//localhost/basyx-map?", "org.postgresql.Driver", "jdbc:postgresql:", "root_el_01");
		
		// Drop tables to make sure we start with a fresh database
		sqlRootElement.dropTable(1);
		sqlRootElement.drop();

		// Create new table in database for root element
		sqlRootElement.createRootTableIfNotExists();

		// Create collection
		Collection<Object> sqlColl = sqlRootElement.createCollection(1);

		
		// Test simple collection functions
		assertTrue(sqlColl.size() == 0);
		// - Add single element
		sqlColl.add("A"); assertTrue(sqlColl.size() == 1);
		sqlColl.add("B"); assertTrue(sqlColl.size() == 2);
		sqlColl.add("A"); assertTrue(sqlColl.size() == 3);
		// - Check element presence
		assertTrue(sqlColl.containsAll(Arrays.asList("A","B","A")));

		
		// Add more elements
		sqlColl.addAll(Arrays.asList("D","E","F"));
		// - Size check
		assertTrue(sqlColl.size() == 6);
		// - Check contained elements
		assertTrue(sqlColl.containsAll(Arrays.asList("A","B","A","D","E","F")));

		
		// Remove elements
		sqlColl.removeAll(Arrays.asList("D","F"));
		// - Size check
		assertTrue(sqlColl.size() == 4);
		// - Check contained elements
		assertTrue(sqlColl.containsAll(Arrays.asList("A","B","A","E")));
		
		
		// Now add some array types
		sqlColl.addAll(Arrays.asList((Object) new int[] { 1, 2, 3 }, new float[] { 1.2f, 4.5f }));
		// - Size check
		assertTrue(sqlColl.size() == 6);
		// - Check contained elements
		assertTrue(sqlColl.containsAll(Arrays.asList((Object) new int[] { 1, 2, 3 }, new float[] { 1.2f, 4.5f })));
		assertTrue(!sqlColl.containsAll(
				Arrays.asList((Object) new int[] { 1, 2, 3 }, new float[] { 1.2f, 4.5f }, new int[] { 8, 0 })));
		// - Check element presence
		assertTrue(sqlColl.contains(new int[] {1,2,3}) == true);
		assertTrue(sqlColl.contains(new float[] {1.2f, 4.5f}) == true);

		
		// Get all elements from collection
		Object[] arr = sqlColl.toArray();
		// - Check array contents
		assertTrue(arr.length == 6);
		assertTrue(arr[0].equals("A"));
		assertTrue(arr[1].equals("B"));
		assertTrue(arr[2].equals("A"));
		assertTrue(arr[3].equals("E"));
		assertTrue(Arrays.equals((int[])   arr[4], new int[] {1,2,3}));
		assertTrue(Arrays.equals((float[]) arr[5], new float[] {1.2f, 4.5f}));


		// Delete most elements
		sqlColl.retainAll(Arrays.asList(new int[] {1,2,3}, "A"));
		// - Size check
		assertTrue(sqlColl.size() == 3);
		// - Check element presence
		assertTrue(sqlColl.contains(new int[] {1,2,3}) == true);
		assertTrue(sqlColl.contains("A") == true);
		
		
		// Drop tables
		sqlRootElement.dropTable(1);

		// Drop table for root element (= delete it)
		sqlRootElement.drop();
	}
}