From 15ca67e8b860bce258e683542241c2b195b9537b Mon Sep 17 00:00:00 2001
From: Ralf Becker <ralfbecker@outdoor-training.de>
Date: Mon, 23 Oct 2006 05:02:00 +0000
Subject: [PATCH] removed not used / needed var parameter, which gave an error
 if using Japan as country, as suggested by Heiga Zen <heigazen-at-gmail.com>

---
 calendar/inc/class.holidaycalc_JP.inc.php | 159 ++++++++++++++++++++++
 1 file changed, 159 insertions(+)
 create mode 100755 calendar/inc/class.holidaycalc_JP.inc.php

diff --git a/calendar/inc/class.holidaycalc_JP.inc.php b/calendar/inc/class.holidaycalc_JP.inc.php
new file mode 100755
index 0000000000..14278dc27b
--- /dev/null
+++ b/calendar/inc/class.holidaycalc_JP.inc.php
@@ -0,0 +1,159 @@
+<?php
+	/**************************************************************************\
+	* eGroupWare - holidaycalc_JP                                              *
+	* http://www.egroupware.org                                              *
+	* Based on Yoshihiro Kamimura <your@itheart.com>                           *
+	*          http://www.itheart.com                                          *
+	* --------------------------------------------                             *
+	*  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 2 of the License, or (at your  *
+	*  option) any later version.                                              *
+	\**************************************************************************/
+
+	/* $Id$ */
+
+	/**
+	 * Calculations for calendar JP holidays
+	 *
+	 * @package calendar
+	 * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+	 */
+	class holidaycalc
+	{
+		function calculate_date($holiday, &$holidays, $year)
+		{
+			static	$cached_month;
+			static	$cached_day;
+			static	$cached_observance_rule;
+
+			if ($holiday['day'] == 0 && $holiday['dow'] != 0 && $holiday['occurence'] != 0)
+			{
+				$dow = $GLOBALS['egw']->datetime->day_of_week($year, $holiday['month'], 1);
+				$dayshift = (($holiday['dow'] + 7) - $dow) % 7;
+				$day = ($holiday['occurence'] - 1) * 7 + $dayshift + 1;
+
+				// Happy monday law.
+				if ($holiday['month'] == 1)
+				{
+					if ($year < 2000)
+					{
+						$day = 15;
+					}
+				}
+				elseif ($holiday['month'] == 7)
+				{
+					if ($year < 2003)
+					{
+						$day = 20;
+					}
+				}
+				elseif ($holiday['month'] == 9)
+				{
+					if ($year < 2003)
+					{
+						$day = 15;
+					}
+				}
+				elseif ($holiday['month'] == 10)
+				{
+					if ($year < 2000)
+					{
+						$day = 10;
+					}
+				}
+			}
+			elseif ($holiday['day'] == 0 && $holiday['dow'] == 0 && $holiday['occurence'] == 0)
+			{
+				// For the next generation.
+				// over 2151, please set $factor...
+				if ($holiday['month'] == 3)
+				{
+					// for Vernal Equinox
+					if ($year >= 1980 && $year <= 2099)
+					{
+						$factor = 20.8431;
+					}
+					elseif ($year >= 2100 && $year <= 2150)
+					{
+						$factor = 21.851;
+					}
+				}
+				elseif ($holiday['month'] == 9)
+				{
+					// for Autumnal Equinox
+					if ($year >= 1980 && $year <= 2099)
+					{
+						$factor = 23.2488;
+					}
+					elseif ($year >= 2100 && $year <= 2150)
+					{
+						$factor = 24.2488;
+					}
+				}
+
+				$day = (int)($factor + 0.242194 * ($year - 1980)
+					- (int)(($year - 1980) / 4));
+			}
+			else
+			{
+				// normal holiday
+				$day = $holiday['day'];
+			}
+
+			if ($year >= 1985 && $holiday['month'] == $cached_month && $day == $cached_day + 2 && $cached_observance_rule == True && $holiday['observance_rule'] == True)
+			{
+				$pdow = $GLOBALS['egw']->datetime->day_of_week($year,$holiday['month'],$day-1);
+				if ($pdow != 0)
+				{
+					$addcnt = count($holidays) + 1;
+					$holidays[$addcnt]['locale'] = $holiday['locale'];
+					if ($pdow == 1)
+					{
+						$holidays[$addcnt]['name'] = lang('overlap holiday');
+					}
+					else
+					{
+						$holidays[$addcnt]['name'] = lang('people holiday');
+					}
+					$holidays[$addcnt]['day'] = $day - 1;
+					$holidays[$addcnt]['month'] = $holiday['month'];
+					$holidays[$addcnt]['occurence'] = 0;
+					$holidays[$addcnt]['dow'] = 0;
+					$holidays[$addcnt]['date'] = mktime(0,0,0,$holiday['month'],$day-1,$year);
+					$holidays[$addcnt]['observance_rule'] = 0;
+				}
+			}
+
+			$cached_month = $holiday['month'];
+			$cached_day = $day;
+			$cached_observance_rule = $holiday['observance_rule'];
+
+			if ($year >= 1985 && $holiday['month'] == 5 && $day == 3)
+			{
+				;
+			}
+			elseif ($holiday['observance_rule'] == True)
+			{
+				$dow = $GLOBALS['egw']->datetime->day_of_week($year,$holiday['month'],$day);
+				// This now calulates Observed holidays and creates a new entry for them.
+				if($dow == 0)
+				{
+					$addcnt = count($holidays) + 1;
+					$holidays[$addcnt]['locale'] = $holiday['locale'];
+					$holidays[$addcnt]['name'] = lang('overlap holiday');
+					$holidays[$addcnt]['day'] = $day + 1;
+					$holidays[$addcnt]['month'] = $holiday['month'];
+					$holidays[$addcnt]['occurence'] = $holiday['occurence'];
+					$holidays[$addcnt]['dow'] = $holiday['dow'];
+					$holidays[$addcnt]['date'] = mktime(0,0,0,$holiday['month'],$day+1,$year);
+					$holidays[$addcnt]['observance_rule'] = 0;
+				}
+			}
+
+			$date = mktime(0,0,0,$holiday['month'],$day,$year);
+
+			return $date;
+		}
+	}
+?>