/**
 * Copyright 2014 Eediom Inc.
 * 
 * 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.araqne.logdb.query.expr;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.araqne.logdb.QueryParseException;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
/**
 * 
 * @author kyun
 *
 */
public class DateTruncTest {
	private String format =  "yyyy-MM-dd HH:mm:ss";
	private SimpleDateFormat sdf = new SimpleDateFormat(format);
	private Date date; 

	@Before
	public void setup() throws ParseException {
		date = sdf.parse("2014-09-18 13:55:10");
		
	}
	
	/**
	 *  Locale 문제로 KST가 아닌 지역에서 빌드를 하면 에러가 발생하므로 임시로 Ignore 함 (issue  #651 참조)
	 *   @author kyun
	 */
	@Ignore
	@Test
	public void testDateTrunc() throws ParseException{
		DateTrunc dateTrunc = null;
		
		dateTrunc =  new DateTrunc(null, expr(date( sdf.format(date), format) , "1m"));
		assertEquals(sdf.parse("2014-09-18 13:55:00"), dateTrunc.eval(null));
		
		dateTrunc =  new DateTrunc(null, expr(date( sdf.format(date), format) , "10m"));
		assertEquals(sdf.parse("2014-09-18 13:50:00"), dateTrunc.eval(null));
		
		dateTrunc =  new DateTrunc(null, expr(date( sdf.format(date), format) , "1mon"));
		assertEquals(sdf.parse("2014-09-01 00:00:00"), dateTrunc.eval(null));
	}

	@Test
	public void testError90640(){
		
		//args size 1
		try {
			new DateTrunc(null, expr(null));
			fail();
		} catch (QueryParseException e) {
			if (e.isDebugMode()) {
				System.out.println(e.getMessage());
			}
			assertEquals("90640", e.getType());
		}
		
	}
	
	private ToDate date(String date, String format){
		List<Expression> expr = new ArrayList<Expression>();

		expr.add(new StringConstant(date));
		expr.add(new StringConstant(format));

		return new ToDate(null, expr);
	}

	private List<Expression> expr(ToDate date, Object... object){
		List<Expression> expr = new ArrayList<Expression>();

		expr.add(date);
		for(Object o: object){
			if(o instanceof String)
				expr.add(new StringConstant((String)o));
			else if(o instanceof Number)
				expr.add(new NumberConstant((Number)o));
		}

		return expr;
	}
}