/*
 * Copyright Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags and
 * the COPYRIGHT.txt file distributed with this work.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.teiid.translator.odata.sap;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.io.ByteArrayInputStream;
import java.io.InputStreamReader;
import java.util.Properties;

import org.junit.jupiter.api.Test;
import org.odata4j.format.xml.EdmxFormatParser;
import org.odata4j.stax2.util.StaxUtil;
import org.teiid.cdk.api.TranslationUtility;
import org.teiid.core.util.ObjectConverterUtil;
import org.teiid.core.util.UnitTestUtil;
import org.teiid.metadata.Column.SearchType;
import org.teiid.metadata.MetadataFactory;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.metadata.Table;
import org.teiid.query.function.FunctionTree;
import org.teiid.query.function.UDFSource;
import org.teiid.query.metadata.MetadataValidator;
import org.teiid.query.metadata.SystemMetadata;
import org.teiid.query.metadata.TransformationMetadata;
import org.teiid.query.unittest.RealMetadataFactory;
import org.teiid.query.validator.ValidatorReport;

@SuppressWarnings("nls")
public class TestSAPODataMetadataProcessor {
	private SAPODataExecutionFactory translator;

	@Test
	public void testSchema() throws Exception {
		translator = new SAPODataExecutionFactory();
		translator.start();

		String csdl = ObjectConverterUtil.convertFileToString(UnitTestUtil.getTestDataFile("sap-metadata.xml"));
		SAPMetadataProcessor processor = new SAPMetadataProcessor();
		Properties props = new Properties();
		MetadataFactory mf = new MetadataFactory("vdb", 1, "flight", SystemMetadata.getInstance().getRuntimeTypeMap(), props, null);
		processor.getMetadata(mf, new EdmxFormatParser().parseMetadata(StaxUtil.newXMLEventReader(new InputStreamReader(new ByteArrayInputStream(csdl.getBytes())))));

		TransformationMetadata metadata = RealMetadataFactory.createTransformationMetadata(mf.asMetadataStore(), "flight", new FunctionTree("foo", new UDFSource(translator.getPushDownFunctions())));
		ValidatorReport report = new MetadataValidator().validate(metadata.getVdbMetaData(), metadata.getMetadataStore());
		if (report.hasItems()) {
			throw new RuntimeException(report.getFailureMessage());
		}

//        String ddl = DDLStringVisitor.getDDLString(mf.getSchema(), null, null);
//        System.out.println(ddl);
//
//        MetadataFactory mf2 = new MetadataFactory(null, 1, "flight", SystemMetadata.getInstance().getRuntimeTypeMap(), new Properties(), null);
//        QueryParser.getQueryParser().parseDDL(mf2, ddl);

		TranslationUtility utility = new TranslationUtility(metadata);
		RuntimeMetadata rm = utility.createRuntimeMetadata();

		Table t = rm.getTable("flight", "SubscriptionCollection");
		assertNotNull(t);

		// check the label name
		assertNotNull(t.getColumnByName("persistNotifications"));
		assertTrue(!t.getColumnByName("ID").isUpdatable());
		assertEquals("Persist Notification", t.getColumnByName("persistNotifications").getRemark());
		// check filterable
		assertEquals(SearchType.Unsearchable, t.getColumnByName("persistNotifications").getSearchType());
		// check sortable
		assertEquals(SearchType.Unsearchable, t.getColumnByName("filter").getSearchType());
		// check visible
		assertEquals(false, t.getColumnByName("filter").isSelectable());
		//check required-in-filter
		assertEquals(1, t.getAccessPatterns().size());
		assertEquals(2, t.getAccessPatterns().get(0).getColumns().size());

		assertEquals(255, t.getColumnByName("select").getLength());
		assertEquals(9, t.getColumnByName("updated").getScale());
	}
}
