<?php 

//
// Open Web Analytics - An Open Source Web Analytics Framework
//
// Copyright 2008 Peter Adams. All rights reserved.
//
// Licensed under GPL v2.0 http://www.gnu.org/copyleft/gpl.html
//
// 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.
//
// $Id$
//

/**
 * Date Class
 * 
 * @author      Peter Adams <peter@openwebanalytics.com>
 * @copyright   Copyright &copy; 2008 Peter Adams <peter@openwebanalytics.com>
 * @license     http://www.gnu.org/copyleft/gpl.html GPL v2.0
 * @category    owa
 * @package     owa
 * @version		$Revision$	      
 * @since		owa 1.0.0
 */


class owa_date {

	var $yyyymmdd;
	var $timestamp;
	var $label;
	var $label_formal;
	var $year;
	var $month;
	var $day;
	var $is_leap_year;
	var $day_of_week;
	var $day_of_week_label;
	var $day_of_year;
	var $day_of_year_label;
	var $week_of_year;
	var $hour;
	var $minute;
	var $second;
	var $microsecond;
	var $meridiem;
	var $num_days_in_month;
	var $utc_offset;
	
	function __construct() {
	
		return;
	}
	
	function set($date, $format = 'yyyymmdd') {
	
		switch ($format) {
			
			case 'yyyymmdd':
				$this->yyyymmdd = $date;
				list($this->year, $this->month, $this->day) = sscanf($date, "%4d%2d%2d");
				$this->timestamp = mktime(0, 0, 0, $this->month, $this->day, $this->year);
				break;
				
			case 'timestamp':
				$this->timestamp = $date;
				$this->yyyymmdd = date('Ymd', $date);
				list($this->year, $this->month, $this->day) = sscanf($this->yyyymmdd, "%4d%2d%2d");
				break;
				
		
		}
		
		$this->utc_offset = date('Z', $this->timestamp);
		$this->hour = date('H', $this->timestamp);
		$this->minute = date('i', $this->timestamp);
		$this->second = date('s', $this->timestamp);
		$this->microsecond = date('u', $this->timestamp);
		$this->meridiem = date('a', $this->timestamp);
		$this->day_of_week = date('w', $this->timestamp);
		$this->day_of_week_label = date('l', $this->timestamp);
		$this->week_of_year = date('W', $this->timestamp);
		$this->day_of_year = date('z', $this->timestamp);
		$this->num_days_in_month = date('t', $this->timestamp);
		$this->label = date('m/d/Y', $this->timestamp);
		$this->label_formal = date('F jS Y', $this->timestamp);
	}
	
	function get($name){
		
		return $this->$name;
	}
	
	function getDay() {
		return $this->day;
	}
	
	function getMonth() {
		return $this->month;
	}
	
	function getYear() {
		return $this->year;
	}
	
	function getLabel($format = '') {
		
		if (empty($format)) {
			
			$format = 'label';
			
		} else {
				
			$format = 'label_'.$format;
		}
		
		return $this->$format;
	}
	
	function getYyyymmdd() {
	
		return $this->yyyymmdd;
	}
	
	function getTimestamp() {
	
		return $this->timestamp;
	}
	
	function getLocalTimestamp() {
		
		return $this->getTimestamp() + $this->utc_offset;
	}
}


?>