/*
    * Project jtimecalc
    * http://jtimecalc.sourceforge.net
    *
    * Copyright Grzegorz Blaszczyk Consulting 2008
    *
    */
   
   /*
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   Version 3, 29 June 2007
  
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  state the exclusion of warranty; and each file should have at least
  the "copyright" line and a pointer to where the full notice is found.
 
  <one line to give the program's name and a brief idea of what it does.>
  Copyright (C) <year>  <name of author>
 
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
 
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
 
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
  Also add information on how to contact you by electronic and paper mail.
 
  If the program does terminal interaction, make it output a short
  notice like this when it starts in an interactive mode:
 
  <program>  Copyright (C) <year>  <name of author>
  This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  This is free software, and you are welcome to redistribute it
  under certain conditions; type `show c' for details.
 
  The hypothetical commands `show w' and `show c' should show the appropriate
  parts of the General Public License.  Of course, your program's commands
  might be different; for a GUI interface, you would use an "about box".
 
  You should also get your employer (if you work as a programmer) or school,
  if any, to sign a "copyright disclaimer" for the program, if necessary.
  For more information on this, and how to apply and follow the GNU GPL, see
  <http://www.gnu.org/licenses/>.
 
  The GNU General Public License does not permit incorporating your program
  into proprietary programs.  If your program is a subroutine library, you
  may consider it more useful to permit linking proprietary applications with
  the library.  If this is what you want to do, use the GNU Lesser General
  Public License instead of this License.  But first, please read
  <http://www.gnu.org/philosophy/why-not-lgpl.html>.
 
  */
 
 package net.sf.jtimecalc;
 
 import static org.junit.Assert.assertEquals;
 
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Calendar;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
 import org.apache.commons.configuration.ConfigurationException;
 import org.apache.commons.configuration.PropertiesConfiguration;
 import org.apache.log4j.Logger;
 
 /***
  * AbstractTimeDifferenceCalculatorTest
  *
  * @author grzegorz@blaszczyk-consulting.com
  */
 
 public class AbstractTimeDifferenceCalculatorTest {
 
   public static Logger logger = Logger.getLogger(AbstractTimeDifferenceCalculatorTest.class);
 
   public static final String TEST_METHOD_PREFIX = "should";
 
   private long endTime = System.currentTimeMillis();
   private long startTime = 0;
   private Map<String, String> messages = null;
   private String expectedValue = "";
 
   private TimeDifferenceCalculator timeDifferenceCalculator;
 
   protected static Calendar prepareCalendar(int year, int month, int day, int hour, int minute, int second, int millisecond) {
     Calendar calendar = Calendar.getInstance();
     calendar.set(Calendar.MILLISECOND, millisecond);
     calendar.set(Calendar.SECOND, second);
     calendar.set(Calendar.MINUTE, minute);
     calendar.set(Calendar.HOUR_OF_DAY, hour);
     calendar.set(Calendar.DATE, day);
     calendar.set(Calendar.MONTH, month);
     calendar.set(Calendar.YEAR, year);
     return calendar;
   }
 
   protected static long substractFromDate(long endDate, int days, int hours, int minutes, int seconds, int milliseconds) {
     return endDate
             - days * Constants.ONE_DAY_IN_MILLISECONDS
             - hours * Constants.ONE_HOUR_IN_MILLISECONDS
             - minutes * Constants.ONE_MINUTE_IN_MILLISECONDS
             - seconds * Constants.ONE_SECOND_IN_MILLISECONDS
             - milliseconds;
   }
 
   protected static long addToDate(long startDate, int days, int hours, int minutes, int seconds, int milliseconds) {
     return startDate
             + days * Constants.ONE_DAY_IN_MILLISECONDS
             + hours * Constants.ONE_HOUR_IN_MILLISECONDS
             + minutes * Constants.ONE_MINUTE_IN_MILLISECONDS
             + seconds * Constants.ONE_SECOND_IN_MILLISECONDS
             + milliseconds;
   }
 
   public void resetEndTime() {
     this.endTime = System.currentTimeMillis();
   }
 
   @SuppressWarnings("unchecked")
   public void loadExpectedMessages(String language) {
     try {
       PropertiesConfiguration conf = new PropertiesConfiguration(AbstractTimeDifferenceCalculatorTest.class.getClassLoader().getResource(
               "resources_" + language + ".properties"));
 
       messages = new HashMap<String, String>();
       List<String> msgMap = conf.getList("messages");
       for (String line : msgMap) {
         String[] tmp = line.split("=");
         if (tmp.length == 2) {
           messages.put(tmp[0], tmp[1]);
         }
       }
 
     } catch (ConfigurationException e) {
       logger.error(e);
     }
   }
 
   public void shouldReturnOneMillisecond() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 0, 1));
     expectedValue = messages.get("oneMillisecond");
   }
 
 
   public void shouldReturnOneSecond() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 1, 0));
     expectedValue = messages.get("oneSecond");
   }
 
 
   public void shouldReturnOneSecondFromStaticTime() {
     setEndTime(1224844452433L);
     setStartTime(substractFromDate(endTime, 0, 0, 0, 1, 0));
     expectedValue = messages.get("oneSecond");
   }
 
 
   public void shouldReturnTwoSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 2, 0));
     expectedValue = messages.get("twoSeconds");
   }
 
 
   public void shouldReturnThreeSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 3, 0));
     expectedValue = messages.get("threeSeconds");
   }
 
 
   public void shouldReturnFourSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 4, 0));
     expectedValue = messages.get("fourSeconds");
   }
 
 
   public void shouldReturnFiveSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 5, 0));
     expectedValue = messages.get("fiveSeconds");
   }
 
 
   public void shouldReturnSixSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 6, 0));
     expectedValue = messages.get("sixSeconds");
   }
 
 
   public void shouldReturnSevenSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 7, 0));
     expectedValue = messages.get("sevenSeconds");
   }
 
 
   public void shouldReturnEightSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 8, 0));
     expectedValue = messages.get("eightSeconds");
   }
 
 
   public void shouldReturnNineSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 9, 0));
     expectedValue = messages.get("nineSeconds");
   }
 
 
   public void shouldReturnTenSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 10, 0));
     expectedValue = messages.get("tenSeconds");
   }
 
 
   public void shouldReturn21Seconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 21, 0));
     expectedValue = messages.get("21Seconds");
   }
 
 
   public void shouldReturn51Seconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 51, 0));
     expectedValue = messages.get("51Seconds");
   }
 
 
   public void shouldReturn53Seconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 0, 53, 0));
     expectedValue = messages.get("53Seconds");
   }
 
 
   public void shouldReturnOneMinuteAndTwentySeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 1, 20, 0));
     expectedValue = messages.get("1Minute20Seconds");
   }
 
 
   public void shouldReturn24Minutes() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 24, 0, 0));
     expectedValue = messages.get("24Minutes");
   }
 
 
   public void shouldReturn59Minutes59Seconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 0, 59, 59, 0));
     expectedValue = messages.get("59Minutes59Seconds");
   }
 
 
   public void shouldReturnOneHour() {
     Calendar end = prepareCalendar(2006, Calendar.FEBRUARY, 1, 11, 0, 0, 0);
     Calendar start = (Calendar) end.clone();
     start.add(Calendar.HOUR_OF_DAY, -1);
     setEndTime(end.getTimeInMillis());
     setStartTime(start.getTimeInMillis());
     expectedValue = messages.get("1Hour");
   }
 
 
   public void shouldReturnOneHourTenMinutesAndTwentyThreeSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 1, 10, 23, 0));
     expectedValue = messages.get("1Hour10Minutes23Seconds");
   }
 
 
   public void shouldReturn11HoursTenMinutesAndTwentyThreeSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 11, 10, 23, 0));
     expectedValue = messages.get("11Hours10Minutes23Seconds");
   }
 
 
   public void shouldReturn22Hours() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 0, 22, 0, 0, 0));
     expectedValue = messages.get("22Hours");
   }
 
 
   public void shouldReturn1Day() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 1, 0, 0, 0, 0));
     expectedValue = messages.get("1Day");
   }
 
 
   public void shouldReturn1DayOneMinute() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 1, 0, 1, 0, 0));
     expectedValue = messages.get("1Day1Minute");
   }
 
 
   public void shouldReturn2Days11HoursTenMinutesAndTwentyThreeSeconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 2, 11, 10, 23, 0));
     expectedValue = messages.get("2Days11Hours10Minutes23Seconds");
   }
 
 
   public void shouldReturn2Days11HoursTenMinutesTwentySecondsAndThreeMilliseconds() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 2, 11, 10, 23, 3));
     expectedValue = messages.get("2Days11Hours10Minutes23Seconds3Milliseconds");
   }
 
 
   public void shouldReturn6Days() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 6, 0, 0, 0, 0));
     expectedValue = messages.get("6Days");
   }
 
 
   public void shouldReturn12Days() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 12, 0, 0, 0, 0));
     expectedValue = messages.get("12Days");
   }
 
 
   public void shouldReturn24Days() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 24, 0, 0, 0, 0));
     expectedValue = messages.get("24Days");
   }
 
 
   public void shouldReturn25Days() {
     resetEndTime();
     setStartTime(substractFromDate(endTime, 25, 0, 0, 0, 0));
     expectedValue = messages.get("25Days");
   }
 
 
   public void shouldReturn1Month5Days11HoursTenMinutesTwentySecondsAndThreeMilliseconds() {
     Calendar cal = prepareCalendar(2008, Calendar.OCTOBER, 1, 0, 0, 0, 0);
     setEndTime(cal.getTimeInMillis());
     long monthInMillis = Constants.getActualMonthInMillis(cal);
     setStartTime(substractFromDate(endTime - monthInMillis, 5, 11, 10, 23, 3));
     expectedValue = messages.get("1Month5Days11Hours10Minutes23Seconds3Milliseconds");
   }
 
 
   public void shouldReturn30Days1Hour0Minutes0seconds() {
     Calendar end = prepareCalendar(2006, Calendar.FEBRUARY, 1, 1, 0, 0, 0);
     // 1.02.2006 01:00:00.0
     setEndTime(end.getTimeInMillis());
 
     Calendar start = (Calendar) end.clone();
     start.add(Calendar.DATE, -30);
     start.add(Calendar.HOUR, -1);
     setStartTime(start.getTimeInMillis());
     // 2.01.2006 00:00:00.0
     expectedValue = messages.get("30Days1Hour");
   }
 
 
   public void shouldReturn2Months3Days0Hours0Minutes0seconds() {
     Calendar end = prepareCalendar(2006, Calendar.FEBRUARY, 1, 0, 0, 0, 0);
     // 1.02.2006 00:00:00.0
     setEndTime(end.getTimeInMillis());
 
     Calendar start = (Calendar) end.clone();
     start.set(Calendar.MONTH, Calendar.DECEMBER);
     start.set(Calendar.YEAR, 2005);
     // 1.12.2005 00:00:00.0
 
     setStartTime(start.getTimeInMillis());
     expectedValue = messages.get("2Months3Days");
   }
 
 
   public void shouldReturn9Months0Days0Hours0Minutes0seconds() {
     Calendar end = prepareCalendar(1980, Calendar.JANUARY, 0, 0, 0, 0, 0);
     // 1.01.1980 00:00:00.0
     setEndTime(end.getTimeInMillis());
 
     Calendar start = (Calendar) end.clone();
     start.add(Calendar.MONTH, -9);
     setStartTime(start.getTimeInMillis());
     expectedValue = messages.get("9Months2Days");
   }
 
   public long getEndTime() {
     return endTime;
   }
 
   public void setEndTime(long endTime) {
     this.endTime = endTime;
   }
 
   public long getStartTime() {
     return startTime;
   }
 
   public void setStartTime(long startTime) {
     this.startTime = startTime;
   }
 
   public Map<String, String> getMessages() {
     return messages;
   }
 
   public String getExpectedValue() {
     return expectedValue;
   }
 
   public void setTimeDifferenceCalculator(TimeDifferenceCalculator timeDifferenceCalculator) {
     this.timeDifferenceCalculator = timeDifferenceCalculator;
   }
   
   public TimeDifferenceCalculator getTimeDifferenceCalculator() {
     return timeDifferenceCalculator;
   }
 
   protected void assertCorrectMessage(String expectedValue, long endTime, long startTime) {
     assertEquals("value returned is not '" + expectedValue + "'", expectedValue, getTimeDifferenceCalculator()
         .getTimeDifferenceAsString(endTime, startTime));
   }
 
   protected void assertCorrectMessages() {
     
     Method[] methods = this.getClass().getMethods();
     Object[] args = null;
 
     for (Method method : methods) {
       if (isTestMethod(method)) {
         logger.debug("Invoking " + method.getName() + "(): ");
         try {
           method.invoke(this, args);
         } catch (IllegalArgumentException e) {
           e.printStackTrace();
           throw new RuntimeException(e);
         } catch (IllegalAccessException e) {
           e.printStackTrace();
           throw new RuntimeException(e);
         } catch (InvocationTargetException e) {
           e.printStackTrace();
           throw new RuntimeException(e);
         }
         assertCorrectMessage(getExpectedValue(), getEndTime(), getStartTime());
         logger.debug("expected value '" + getExpectedValue() + "' is correct");
       }
     }
   }
   
   private boolean isTestMethod(Method method) {
     if (method != null && method.getName() != null) {
       return method.getName().startsWith(TEST_METHOD_PREFIX);
     } else {
       return false;
     }
   }
   
 }