<?php

class class_DisciplinsPrepodsChange{
    private  $DB=null;
    private  $TUchebplans='';
    private  $TUchebplansPrepod='';
    private  $Tusers='';
    function __construct(){
        GLOBAL $DB,$ST;
        $this->DB = $DB;
        $this->TUchebplans = $ST['dbpf'].'_fshp_uchebplans';
        $this->TUchebplansPrepod = $ST['dbpf'].'_fshp_disciplin_prepod';
        $this->Tusers = $ST['dbpf'].'_users';
    }
    public function HTML(){
        GLOBAL $WorkDIR;
        $CHPU = new class_CHPU($WorkDIR);
        $URLS = $CHPU->uri();

        $smartyC = new class_smarty();
        $smarty = $smartyC->config(__DIR__.'\..\tpl');

        //обработка АЯКС запросов
        if(isset($_POST['ajdes'])){
            header('Content-Type: application/json; charset=utf-8');
            $out=array();
            //Сохранение преподавателя к дисциплине
            //if($_POST['ajdes']=='SavePrepod'){
            //    $id_disc=(int)$_POST['id_disc'];
            //    $id_prepod=(int)$_POST['id_prepod'];
            //    $smena=$_POST['smena'];
            //    $out = $this->Disciplin_Save_Prepod($id_disc,$id_prepod,$smena);
            //}
            echo json_encode($out);
            exit();
        }

        $view = 'all';
        $out = array('name'=>'Дисциплины','body'=>'');

        if(isset($URLS[1])){
            $id = 0; if(isset($URLS[2])) $id = (int)$URLS[2];
            if($URLS[1]=='confirm'){
                $sql = 'SELECT * FROM '.$this->TUchebplansPrepod.' WHERE id='.$id.' LIMIT 1';
                $rez = $this->DB->QUR_SEL($sql);
                if(!$rez['err']&&$rez['kol']){
                    if($rez['rez'][0]['id_prepod']==0){//Указан пустой препод!
                        $rez = $this->DB->QUR('DELETE FROM '.$this->TUchebplansPrepod.' WHERE id_uchebplans='.$rez['rez'][0]['id_uchebplans']);
                    }else {
                        $descrip = $rez['rez'][0]['descrip'] . ' : одобрено ' . date('H:i d.m.Y') . ' | ' . $_SESSION['user']['fio'];
                        $sql = 'UPDATE ' . $this->TUchebplansPrepod . ' SET descrip="' . $descrip . '", status=1 WHERE id=' . $id . ' LIMIT 1';
                        $rez = $this->DB->QUR($sql);
                    }
                }
            }
            if($URLS[1]=='dele'){
                $sql = 'SELECT * FROM '.$this->TUchebplansPrepod.' WHERE id='.$id.' LIMIT 1';
                $rez = $this->DB->QUR_SEL($sql);
                if(!$rez['err']&&$rez['kol']){
                    $sql = 'DELETE FROM '.$this->TUchebplansPrepod.' WHERE id='.$id.' LIMIT 1';
                    $rez = $this->DB->QUR($sql);
                }
            }

        }
        if(!isset($URLS[1])||$URLS[1]=='all') {
            $dis = $this->Disciplins();
            $smarty->assign('DISCIPS', $dis['items']);
            $smarty->assign('view',$view);
            $out['body'] = $smarty->fetch('page_disciplinsprepodschange.html');
        }
        return $out;
    }
    //подбираем дисциплины у которых менялся препод
    public function Disciplins(){
        $out=array();

        $sql = 'SELECT up.id_uchebplans,upl.index1,upl.name,upl.kaf_kod,upl.kaf_name FROM '.$this->TUchebplans.' as upl,'.$this->TUchebplansPrepod.' as up WHERE upl.id=up.id_uchebplans AND up.status=0 ORDER BY up.data_c DESC';
        $rez = $this->DB->QUR_SEL($sql);
        //echo $sql.'<pre>'.print_r($rez,1).'</pre>';exit();
        if(!$rez['err']&&$rez['kol']){
            foreach ($rez['rez'] as $k => $v){
                $v['history'] = $this->DisciplinsHistory($v['id_uchebplans']);
                $out[] = $v;
            }
        }
        return array('items'=>$out);
    }
    //подбираем дисциплины историю изменений
    public function DisciplinsHistory($id_uchebplans){
        $out=array();

        //$sql = 'SELECT up.id,up.data_c,up.descrip,up.status,u.fio FROM '.$this->TUchebplansPrepod.' as up,'.$this->Tusers.' as u WHERE u.id=up.id_prepod AND up.id_uchebplans='.$id_uchebplans.' ORDER BY up.data_c DESC';
        //$rez = $this->DB->QUR_SEL($sql);
        //if(!$rez['err']&&$rez['kol']){
        //    foreach ($rez['rez'] as $k => $v){
        //        $out[] = $v;
        //    }
        //}
        //if(!count($out)){
            $sql = 'SELECT up.id,up.data_c,up.descrip,up.status,u.fio FROM '.$this->TUchebplansPrepod.' as up,'.$this->Tusers.' as u WHERE u.id=up.id_prepod AND up.id_uchebplans='.$id_uchebplans.' ORDER BY up.data_c DESC';
            $rez = $this->DB->QUR_SEL($sql);
            //echo $sql.'<pre>'.print_r($rez,1).'</pre>';
            //$out[] = $sql;
            //$out[] = $rez;
            if(!$rez['err']&&$rez['kol']){
                foreach ($rez['rez'] as $k => $v){
                    $out[] = $v;
                }
            }else{//Возможно не указали препода!
                $sql = 'SELECT up.id,up.data_c,up.descrip,up.status FROM '.$this->TUchebplansPrepod.' as up WHERE up.id_uchebplans='.$id_uchebplans.' ORDER BY up.data_c DESC';
                $rez = $this->DB->QUR_SEL($sql);
                if(!$rez['err']&&$rez['kol']){
                    foreach ($rez['rez'] as $k => $v){
                        $v['fio'] = 'Не указан';
                        $out[] = $v;
                    }
                }
            }
        //}
        return $out;
    }


}