/*
 * Copyright 2001-2005 The Apache Software Foundation
 *
 * 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.apache.commons.net.ftp.parser;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import junit.framework.TestCase;

import org.apache.commons.net.ftp.FTPClientConfig;
import org.apache.commons.net.ftp.FTPFile;

/**
 * This is a simple TestCase that tests entry parsing using the new FTPClientConfig
 * mechanism. The normal FTPClient cannot handle the different date formats in these 
 * entries, however using a configurable format, we can handle it easily.
 * 
 * The original system presenting this issue was an AIX system - see bug #27437 for details.
 * 
 *  @version $Id$
 */
public class FTPConfigEntryParserTest extends TestCase {
	
	private SimpleDateFormat df = new SimpleDateFormat();

	public void testParseFieldsOnAIX() {
		
		// Set a date format for this server type
		FTPClientConfig config = new FTPClientConfig(FTPClientConfig.SYST_UNIX);
		config.setDefaultDateFormatStr("dd MMM HH:mm");

		UnixFTPEntryParser parser = new UnixFTPEntryParser();
		parser.configure(config);

		FTPFile f = parser.parseFTPEntry("-rw-r-----   1 ravensm  sca          814 02 Mar 16:27 ZMIR2.m");

		assertNotNull("Could not parse entry.", f);
		assertFalse("Is not a directory.", f.isDirectory());

		assertTrue("Should have user read permission.", f.hasPermission(
				FTPFile.USER_ACCESS, FTPFile.READ_PERMISSION));
		assertTrue("Should have user write permission.", f.hasPermission(
				FTPFile.USER_ACCESS, FTPFile.WRITE_PERMISSION));
		assertFalse("Should NOT have user execute permission.", f
				.hasPermission(FTPFile.USER_ACCESS, FTPFile.EXECUTE_PERMISSION));
		assertTrue("Should have group read permission.", f.hasPermission(
				FTPFile.GROUP_ACCESS, FTPFile.READ_PERMISSION));
		assertFalse("Should NOT have group write permission.", f
				.hasPermission(FTPFile.GROUP_ACCESS, FTPFile.WRITE_PERMISSION));
		assertFalse("Should NOT have group execute permission.",
				f.hasPermission(FTPFile.GROUP_ACCESS,
						FTPFile.EXECUTE_PERMISSION));
		assertFalse("Should NOT have world read permission.", f.hasPermission(
				FTPFile.WORLD_ACCESS, FTPFile.READ_PERMISSION));
		assertFalse("Should NOT have world write permission.", f
				.hasPermission(FTPFile.WORLD_ACCESS, FTPFile.WRITE_PERMISSION));
		assertFalse("Should NOT have world execute permission.",
				f.hasPermission(FTPFile.WORLD_ACCESS,
						FTPFile.EXECUTE_PERMISSION));

		assertEquals(1, f.getHardLinkCount());

		assertEquals("ravensm", f.getUser());
		assertEquals("sca", f.getGroup());

		assertEquals("ZMIR2.m", f.getName());
		assertEquals(814, f.getSize());

		Calendar cal = Calendar.getInstance();
		
		Date refDate = new Date();
		
		cal.set(Calendar.MONTH, Calendar.MARCH);
		cal.set(Calendar.DATE, 2);
		cal.set(Calendar.HOUR_OF_DAY, 16);
		cal.set(Calendar.MINUTE, 27);
		cal.set(Calendar.SECOND, 0);
		
		// With no year specified, it defaults to 1970
		// TODO this is probably a bug - it should default to the current year
		cal.set(Calendar.YEAR, 1970);
		
		assertEquals(df.format(cal.getTime()), df.format(f.getTimestamp()
				.getTime()));
	}
	
	/**
	 * This is a new format reported on the mailing lists. Parsing this kind of 
	 * entry necessitated changing the regex in the parser.
	 *
	 */
	public void testParseEntryWithSymlink() {
		
		FTPClientConfig config = new FTPClientConfig(FTPClientConfig.SYST_UNIX);
		config.setDefaultDateFormatStr("yyyy-MM-dd HH:mm");

		UnixFTPEntryParser parser = new UnixFTPEntryParser();
		parser.configure(config);

		FTPFile f = parser.parseFTPEntry("lrwxrwxrwx   1 neeme neeme    23 2005-03-02 18:06 macros");

		assertNotNull("Could not parse entry.", f);
		assertFalse("Is not a directory.", f.isDirectory());
		assertTrue("Is a symbolic link", f.isSymbolicLink());

		assertTrue("Should have user read permission.", f.hasPermission(
				FTPFile.USER_ACCESS, FTPFile.READ_PERMISSION));
		assertTrue("Should have user write permission.", f.hasPermission(
				FTPFile.USER_ACCESS, FTPFile.WRITE_PERMISSION));
		assertTrue("Should have user execute permission.", f
				.hasPermission(FTPFile.USER_ACCESS, FTPFile.EXECUTE_PERMISSION));
		assertTrue("Should have group read permission.", f.hasPermission(
				FTPFile.GROUP_ACCESS, FTPFile.READ_PERMISSION));
		assertTrue("Should have group write permission.", f
				.hasPermission(FTPFile.GROUP_ACCESS, FTPFile.WRITE_PERMISSION));
		assertTrue("Should have group execute permission.",
				f.hasPermission(FTPFile.GROUP_ACCESS, FTPFile.EXECUTE_PERMISSION));
		assertTrue("Should have world read permission.", f.hasPermission(
				FTPFile.WORLD_ACCESS, FTPFile.READ_PERMISSION));
		assertTrue("Should have world write permission.", f
				.hasPermission(FTPFile.WORLD_ACCESS, FTPFile.WRITE_PERMISSION));
		assertTrue("Should have world execute permission.",
				f.hasPermission(FTPFile.WORLD_ACCESS, FTPFile.EXECUTE_PERMISSION));

		assertEquals(1, f.getHardLinkCount());

		assertEquals("neeme", f.getUser());
		assertEquals("neeme", f.getGroup());

		assertEquals("macros", f.getName());
		assertEquals(23, f.getSize());

		Calendar cal = Calendar.getInstance();
		
		Date refDate = new Date();
		
		cal.set(Calendar.MONTH, Calendar.MARCH);
		cal.set(Calendar.DATE, 2);
		cal.set(Calendar.HOUR_OF_DAY, 18);
		cal.set(Calendar.MINUTE, 06);
		cal.set(Calendar.SECOND, 0);
		cal.set(Calendar.YEAR, 2005);
			
		assertEquals(df.format(cal.getTime()), df.format(f.getTimestamp()
				.getTime()));
		
	}

}
