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package org.apache.cayenne.dbsync.merge.token.model;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import java.sql.Types;
import java.util.List;

import org.apache.cayenne.dbsync.merge.MergeCase;
import org.apache.cayenne.dbsync.merge.token.MergerToken;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.ObjAttribute;
import org.apache.cayenne.map.ObjEntity;
import org.junit.Test;

public class DropTableToModelIT extends MergeCase {

	@Test
	public void testDropTable() throws Exception {
		dropTableIfPresent("NEW_TABLE");
		assertTokensAndExecute(0, 0);

		DbEntity dbEntity = new DbEntity("NEW_TABLE");

		DbAttribute column1 = new DbAttribute("ID", Types.INTEGER, dbEntity);
		column1.setMandatory(true);
		column1.setPrimaryKey(true);
		dbEntity.addAttribute(column1);

		DbAttribute column2 = new DbAttribute("NAME", Types.VARCHAR, dbEntity);
		column2.setMaxLength(10);
		column2.setMandatory(false);
		dbEntity.addAttribute(column2);

		map.addDbEntity(dbEntity);

		assertTokensAndExecute(1, 0);
		assertTokensAndExecute(0, 0);

		ObjEntity objEntity = new ObjEntity("NewTable");
		objEntity.setDbEntity(dbEntity);
		ObjAttribute oatr1 = new ObjAttribute("name");
		oatr1.setDbAttributePath(column2.getName());
		oatr1.setType("java.lang.String");
		objEntity.addAttribute(oatr1);
		map.addObjEntity(objEntity);

		// force drop table in db
		MergerToken token = mergerFactory().createDropTableToDb(dbEntity);
		execute(token);

		List<MergerToken> tokens = createMergeTokens();
		assertEquals(1, tokens.size());
		token = tokens.get(0);
		if (token.getDirection().isToDb()) {
			token = token.createReverse(mergerFactory());
		}
		assertTrue(token instanceof DropTableToModel);
		execute(token);
		resolver.refreshMappingCache();
		assertNull(map.getDbEntity(dbEntity.getName()));
		assertNull(map.getObjEntity(objEntity.getName()));

		// clear up
		map.removeObjEntity(objEntity.getName(), true);
		map.removeDbEntity(dbEntity.getName(), true);
		resolver.refreshMappingCache();
		assertNull(map.getObjEntity(objEntity.getName()));
		assertNull(map.getDbEntity(dbEntity.getName()));
		assertFalse(map.getDbEntities().contains(dbEntity));

		assertTokensAndExecute(0, 0);
	}

}