plugin_date.php

<?php
/*
This file is part of Mkframework.

Mkframework is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License.

Mkframework 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with Mkframework.  If not, see <http://www.gnu.org/licenses/>.

*/
class plugin_date{

    protected $iYear;
    protected $iMonth;
    protected $iDay;
    
    public function __construct($sDate=null,$sFormat='Y-m-d'){
        if($sDate!=null){
            if(!$this->loadFromFormat($sDate,$sFormat)){
                return false;
            }
        }else{
            $this->reset();
        }
    }
    public function loadFromFormat($sDate,$sFormat){
        list($sYear,$sMonth,$sDay)=$this->convertFromFormatToTab($sDate,$sFormat);
        $this->setYear((int)$sYear);
        $this->setMonth((int)$sMonth);
        $this->setDay((int)$sDay);
        if(!$this->isValid() ){ 
            $this->reset();
            return false; 
        }
        
        return true;
    }
    public function reset(){
        $this->iYear=null;
        $this->iMonth=null;
        $this->iDay=null;

        $this->iHour=null;
        $this->iMinute=null;
        $this->iSecond=null;
    }
    public function setYear($iYear){
        $this->iYear=intval($iYear);
    }
    public function setMonth($iMonth){
        $this->iMonth=intval($iMonth);
    }
    public function setDay($iDay){
        $this->iDay=intval($iDay);
    }
    
    public function getYear($sFormat='YYYY'){
        if($this->iYear==null){ return null;}
        if($sFormat=='YY'){
            return substr($this->iYear,-2);
        }else if($sFormat=='YYYY'){
            return $this->iYear;
        }else{
            throw new Exception('Wrong format for plugin_date::getYear()');
        }
    }
    public function getMonth($sFormat='MM'){
        if($this->iMonth==null){ return null;}
        if($sFormat=='M'){
            return $this->iMonth;
        }else if($sFormat=='MM'){
            return sprintf('%02d',$this->iMonth);
        }else{
            throw new Exception('Wrong format for plugin_date::getMonth()');
        }
    }
    public function getStringMonth($sFormat='MM'){
        if($this->iMonth==null){ return null;}
        _root::loadLangueDate();
        $tLangueDate=_root::getConfigVar('tLangueDate');

        if($sFormat=='MM'){
            return $tLangueDate['tMoisLong'][(int)$this->getMonth('M')];
        }else if($sFormat=='M'){
            return $tLangueDate['tMoisCourt'][(int)$this->getMonth('M')];
        }else{
            throw new Exception('Wrong format for plugin_date::getStringMonth()');
        }
    }
    public function getStringDay($sFormat='DD'){
        if($this->iMonth==null){ return null;}
        _root::loadLangueDate();
        $tLangueDate=_root::getConfigVar('tLangueDate');

        if($sFormat=='DD'){
            return $tLangueDate['tJourLong'][(int)$this->getWeekDay('D')];
        }else if($sFormat=='D'){
            return $tLangueDate['tJourCourt'][(int)$this->getWeekDay('D')];
        }else{
            throw new Exception('Wrong format for plugin_date::getStringDay()');
        }
    }

    public function getDay($sFormat='DD'){
        if($this->iDay==null){ return null;}
        if($sFormat=='D'){
            return $this->iDay;
        }else if($sFormat=='DD'){
            return sprintf('%02d',$this->iDay);
        }else{
            throw new Exception('Wrong format for plugin_date::getDay()');
        }
    }
    public function getWeekDay(){
        return date('w',$this->getMkTime() ) ;
    }
    public function getNumberWeek(){
        return date('W',$this->getMkTime() );
    }

    

    public function addDay($iNb){
        $newDate=mktime(0,0,0,$this->iMonth,$this->iDay+$iNb,$this->iYear);
        
        $this->loadFromFormat(date('Y-m-d',$newDate), 'Y-m-d' );
    }
    public function addMonth($iNb){
        $newDate=mktime(0,0,0,$this->iMonth+$iNb,$this->iDay,$this->iYear);
        
        $this->loadFromFormat(date('Y-m-d',$newDate), 'Y-m-d' );
    }
    public function addYear($iNb){
        $newDate=mktime(0,0,0,$this->iMonth,$this->iDay,$this->iYear+$iNb);
        
        $this->loadFromFormat(date('Y-m-d',$newDate), 'Y-m-d' );
    }
    
    public function removeDay($iNb){
        $newDate=mktime(0,0,0,$this->iMonth,$this->iDay-$iNb,$this->iYear);
        
        $this->loadFromFormat(date('Y-m-d',$newDate), 'Y-m-d' );
    }
    public function removeMonth($iNb){
        $newDate=mktime(0,0,0,$this->iMonth-$iNb,$this->iDay,$this->iYear);
        
        $this->loadFromFormat(date('Y-m-d',$newDate), 'Y-m-d' );
    }
    public function removeYear($iNb){
        $newDate=mktime(0,0,0,$this->iMonth,$this->iDay,$this->iYear-$iNb);
        
        $this->loadFromFormat(date('Y-m-d',$newDate), 'Y-m-d' );
    }

    public function getMkTime(){
        return mktime(0,0,0,$this->iMonth,$this->iDay,$this->iYear);
    }
    
    public function isBank(){
        
        $iAnnee=$this->iYear;
        $iMois=$this->iMonth;
        $iJour=$this->iDay;
        
        $iJourNewDate=$this->getWeekDay();
        
        //calcul dimanche de paque et jeudi ascension seulement si mois d'avril ou mai
        if(intVal($iMois)==3 or intVal($iMois)==4 or intVal($iMois)==5){
            //calcul Paques
            $sDimanchePaques=date('d-m-Y',easter_date($iAnnee));
            $tDimanchePaquesTab=explode('-',$sDimanchePaques);
        
            $iJourDimanchePaques=$tDimanchePaquesTab[0];
            $iMoisDimanchePaques=$tDimanchePaquesTab[1];
        
            $sLundiPaques=date('d-m-Y',mktime(0,0,0,$iMoisDimanchePaques,$iJourDimanchePaques+1,$iAnnee));
            $tLundiPaquesTab=explode('-',$sLundiPaques);
        
            $iJourLundiPaques=intVal($tLundiPaquesTab[0]);
            $iMoisLundiPaques=intVal($tLundiPaquesTab[1]);
        
            //calcul jeudi ascension = dimanche paques + 39 jour
            $sJeudiAscension=date('d-m-Y',mktime(0,0,0,$iMoisDimanchePaques,$iJourDimanchePaques+39,$iAnnee));
            $tJeudiAscensionTab=explode('-',$sJeudiAscension);
        
            $iJourJeudiAsc=intVal($tJeudiAscensionTab[0]);
            $iMoisJeudiAsc=intVal($tJeudiAscensionTab[1]);
        }
            
        if($iJourNewDate==6 or $iJourNewDate==0){
            //samedi ou dimanche
            return true;
        }
        else if($iMois==12 and $iJour==25){
            //noel
            return true;
        }
        else if($iMois==1 and $iJour==1){
            //jour de l'an
            return true;
        }
        else if($iMois==5 and ($iJour==1 or $iJour==8)){
            //1er et 8 mai
            return true;
        }
        else if($iMois==11 and ($iJour==1 or $iJour==11)){
            //1er et 11 novembre
            return true;
        }
        else if($iMois==7 and $iJour==14){
            //14 juillet
            return true;
        }
        else if($iMois==8 and $iJour==15){
            //15 aout
            return true;
        }
        else if($iMois==$iMoisLundiPaques and $iJour==$iJourLundiPaques){
            //Paques
            return true;
        }
        else if($iMois==$iMoisJeudiAsc and $iJour==$iJourJeudiAsc){
            //Ascension
            return true;
        }
        return false;
        
    }
    public function isValid(){
    
        if($this->iYear==null or $this->iMonth==null or $this->iDay==null ){
            return false;
        }
        if( $this->iYear < 1900 ){
            return false;
        }
        if( $this->iMonth < 1 or $this->iMonth > 12 ){
            return false;
        }
        if( $this->iDay < 1 or $this->iDay > 31 ){
            return false;
        }
        
        return true;
    }

    public function toString($sFormat='Y-m-d'){
        return date($sFormat,$this->getMkTime());
    }

    public function isToday(){
        if($this->getFormat('Y-m-d')==date('Y-m-d')){
            return true;
        }
        return false;
    }
    
    
    private function convertFromFormatToTab($sDate,$sFormat){
        
        if($sFormat=='Y-m-d'){
            list($iAnnee,$iMois,$iJour)=explode('-',$sDate);
        }elseif($sFormat=='d-m-Y'){
            list($iJour,$iMois,$iAnnee)=explode('-',$sDate);
        }elseif($sFormat=='d/m/Y'){
            list($iJour,$iMois,$iAnnee)=explode('/',$sDate);
        }elseif($sFormat=='Y/m/d'){
            list($iAnnee,$iMois,$iJour)=explode('/',$sDate);
        }elseif($sFormat=='m-d-Y'){
            list($iMois,$iJour,$iAnnee)=explode('-',$sDate);
        }elseif($sFormat=='y-m-d'){
            list($iAnnee,$iMois,$iJour)=explode('-',$sDate);
            $iAnnee=2000+intval($iAnnee);
        }       

        return array(
                sprintf('%04d',$iAnnee),
                sprintf('%02d',$iMois),
                sprintf('%02d',$iJour), 
        );
        
    }
    
}