<?php

/**
 * Subclass for representing a row from the 'reading' table.
 *
 * 
 *
 * @package lib.model
 */ 
class Reading extends BaseReading
{
	public function setNewReading($prvreading)
	{
		
		$this->setPrvCycleId($prvreading->getReadingCycleId());
    $this->setPrvidx($prvreading->getNewidx());
		$this->setPrvdate($prvreading->getNewdate());
		
		$readingcycle = ReadingCyclePeer::getCurrentCycle();
    $this->setReadingCycleId($readingcycle->getId());
    
		$this->checkIdxdiff();
		$this->checkNbofdays();
		$this->checkDonotbill();

    $this->setIsBilled(0);
	}
	
	public function checkIdxdiff()
	{
		if ($this->getIsClocked())
		{
			$meter = MeterPeer::retrieveByPk($this->getMeterId());
			$maxidx = pow(10,$meter->getDigits());
			$idxdiff = ($maxidx - $this->getPrvidx()) + $this->getNewidx();
		}
		else
		{
			$idxdiff = $this->getNewidx() - $this->getPrvidx();
		}
		$this->setIdxdiff($idxdiff);
	}
	
	public function checkNbofdays()
	{
		$nbofdays = abs((strtotime($this->getNewdate()) - strtotime($this->getPrvdate())) / 86400 + 1);
    $this->setNbofdays($nbofdays);
	}
	
	public function checkDonotbill()
	{
		if (($this->getPrvidx() == $this->getNewidx()) || ($this->getIdxdiff() == 0)) 
		{
			$this->setDonotbill(1);
		}
		else
		{
			$this->setDonotbill(0);
		}
	}
	
}