<?php
class attendancelog {
    private string $name;
    private $DB;
    public function __construct($DB, $name){
        $this->DB = $DB;
        $this->name = $name;
    }
    public function currentUserInfo(){
        $currentUserInfo = array();
        if(isset($_SESSION['user']['teacher'])) {
            $currentUserInfo['role'] = 'teacher';
            $currentUserInfo['user_id'] = $_SESSION['user']['id'];
            $currentUserInfo['teacher_id'] = $_SESSION['user']['teacher']['id'];
            if(isset($_SESSION['user']['teacher']['fakultet'])){
                $sql_search = 'SELECT id FROM acs_faculties WHERE name="'. $_SESSION['user']['teacher']['fakultet'] .'"';
                $tmp = $this->DB->QUR_SEL($sql_search);
                unset($tmp[0]);
                $currentUserInfo['facult']['facult_name'] = $_SESSION['user']['teacher']['fakultet'];
                $currentUserInfo['facult']['facult_id'] = $tmp[1]['id'];
                $sql_search = 'SELECT id, sokr, fo FROM acs_grupp WHERE id_facult="'.$tmp[1]['id'] .'" AND sokr NOT LIKE "Выпуск%"';
                $tmp = $this->DB->QUR_SEL($sql_search);
                unset($tmp[0]);
                foreach($tmp as $grupp){
                    $currentUserInfo['related_grupps'][$grupp['sokr']] = $grupp ;
                }

            }
            return $currentUserInfo;
        }else if(isset($_SESSION['user']['student'])) {
            $currentUserInfo['role'] = 'student';
            $currentUserInfo['user_id'] = $_SESSION['user']['id'];
            $sql_search = 'SELECT * FROM acs_attendancelog_headmen WHERE user_id='. $currentUserInfo['user_id'] .' ';
            $rez = $this->DB->QUR_SEL($sql_search);
            if(!isset($rez[1])){
                return 0;
            }
            $currentUserInfo['student_id'] = $_SESSION['user']['student']['id'];
            $currentUserInfo['grupp_id'] = $_SESSION['user']['student']['grupp']['id'];
            if(isset($_SESSION['user']['student']['grupp'])){
                $currentUserInfo['facult']['facult_id'] = $_SESSION['user']['student']['grupp']['id_facult'];
                $sql_search = 'SELECT name FROM acs_faculties WHERE id='. $currentUserInfo['facult']['facult_id'] .' ';
                $tmp = $this->DB->QUR_SEL($sql_search);
                unset($tmp[0]);
            }
            return $currentUserInfo;

        }
//        else if(isset($_SESSION['user']['statuses']['25']))
//        {
//
//        }else{
//
//        }
    }
    function getAllGrupps($facult = '') {
        if($facult != ''){
            $sql_search = 'SELECT id, sokr, fo, kurs FROM acs_grupp WHERE fo="ОФО" AND id_facult="'. $facult .'" AND sokr NOT LIKE "Выпуск%" ORDER BY `sokr` DESC';
        }else{
            $sql_search = 'SELECT id, sokr, fo, kurs FROM acs_grupp WHERE fo="ОФО" AND sokr NOT LIKE "Выпуск%" ORDER BY `sokr` DESC';
        }
        $tmp = $this->DB->QUR_SEL($sql_search);
        unset($tmp[0]);
        return $tmp;
    }
    function getStudentsByGroup($groupName,$educationForm)
    {
        $educationForm = urlencode($educationForm);
        $groupName = urlencode($groupName);
        $url = 'https://eios.mkgtu.ru/api.php?des=studentsByGrupp&param1=' . $groupName . '&param2=' . $educationForm.'&param3=1';
        return json_decode(file_get_contents($url),1);
    }
    function getClassesByGroup($groupName,$educationForm)
    {
        $tmp = explode('-', $groupName);
        $groupName = trim($tmp[0]);
        $groupNumber = substr($tmp[1],0,2);
        $educationForm = urlencode($educationForm);
        $groupName = urlencode($groupName);
        $groupNumber = urlencode($groupNumber);
        $url = 'https://local.mkgtu.ru/raspisnew/api.php?des=raspis_grupp&name='. $groupName .'&number='. $groupNumber .'&fo=' . $educationForm;
        return json_decode(file_get_contents($url),1);
        //return $url;
    }
    function currentTime() { //возвращает информацию о текущем моменте для пользователя
        $rez = array();
        $moment = getdate();
        $curr_minutes = $moment['hours'] * 60 + $moment['seconds'];
        $minutes = 480;
        for($i = 1; $i < 8; $i++) { //возвращает текущую пару в университете
            if ($curr_minutes >= $minutes-10 AND $curr_minutes <= $minutes + 90){
                $rez['time1'] = $i;
            }
            if ($i == 4){
                $minutes = $minutes + 110;
            }else{
                $minutes = $minutes + 100;
            }
        }
        $week = json_decode(file_get_contents('https://local.mkgtu.ru/raspisnew/api.php?des=raspis_week_cur'),1);
        $rez['day1'] = $moment['wday'];
        $rez['mday'] = $moment['mday'];
        $rez['mon'] = $moment['mon'];
        $rez['0'] = $moment['0'];
        $rez['year'] = $moment['year'];
        $rez['date'] = date("Y-m-d");
        $rez['week1'] = $week['week_cur'];
        return $rez;
    }

    function getGroupNameByID($id) {
        $sql_search = 'SELECT sokr, fo FROM acs_grupp WHERE id='. $id .' ';
        $tmp = $this->DB->QUR_SEL($sql_search);
        return $tmp[1];
    }
    public function getWeekByDate($ts=0) {
        $url = 'https://local.mkgtu.ru/raspisnew/api.php?des=raspis_week_cur&ts=' . $ts;
        $awn = json_decode(file_get_contents($url),1);
        return $awn['week_cur'];
    }
    public function predmetsAddEdit($predmet_name){
        //принимает имя предмета. Делает запись в таблицу предметов, если такой нет. В любом случае возвращает айди предмета
        $sql_search = 'SELECT id, name FROM acs_attendancelog_predmets WHERE name="'. $predmet_name .'"';
        $search = $this->DB->QUR_SEL($sql_search);
        if(isset($search[1])){
            $search = $search[1];
        }
        if(count($search) == 0){
            $sql_insert = 'INSERT INTO acs_attendancelog_predmets (id, name) VALUES (0,"'. $predmet_name .'")';
            $rez = $this->DB->QUR($sql_insert);
            $sql_search = 'SELECT id, name FROM acs_attendancelog_predmets WHERE name="'. $predmet_name .'"';
            $search = $this->DB->QUR_SEL($sql_search);
            if(isset($search[1])){
                $search = $search[1];
            }
        }
        return $search['id'];
    }
    public function AttendanceAddEdit()
    {
        if(isset($_POST['attendance_add_edit'])){
            foreach ($_POST['attendance_add_edit']['attendance'] as $user_id => $student_att){
                $sql_search = 'SELECT id FROM acs_attendancelog_students_attendance WHERE user_id="'. $user_id .'" AND gruppa="'. $this->DB->rescape($_POST['attendance_add_edit']['info']['gruppa']) .'" AND date1="'. $this->DB->rescape($_POST['attendance_add_edit']['info']['date']) .'" AND time1='. $this->DB->rescape($_POST['attendance_add_edit']['info']['time1']) .' AND predmet_id="'. $this->DB->rescape($_POST['attendance_add_edit']['info']['predmet_id']) .'" ';
                $search = $this->DB->QUR_SEL($sql_search);
                if (isset($search[1])){
                    $sql_update = 'UPDATE acs_attendancelog_students_attendance SET att=' . $student_att . ' WHERE id='. $search[1]['id'] .' ';
                    $rez = $this->DB->QUR($sql_update);
                }else {
                    $sql_insert = 'INSERT INTO acs_attendancelog_students_attendance (id, user_id, gruppa, date1, att, time1, predmet_id) VALUES (0,"'.$user_id.'", "'. $this->DB->rescape($_POST['attendance_add_edit']['info']['gruppa']) .'", "'. $this->DB->rescape($_POST['attendance_add_edit']['info']['date']) .'", '. $student_att .', '. $this->DB->rescape($_POST['attendance_add_edit']['info']['time1']) .',"'. $this->DB->rescape($_POST['attendance_add_edit']['info']['predmet_id']) . '")';
                    $rez = $this->DB->QUR($sql_insert);
                }


            }
            $rez['date_cur'] = $_POST['attendance_add_edit']['info']['date'];
            return $rez;
        }
    }
    public function headmanAddDelete(){
        if(isset($_POST['headman_request'])){
            $currentUserInfo = $this->currentUserInfo();
            $current_time = $this->currentTime();
            $current_group = $this->getGroupNamebyID((int)$_GET['id']);
            $students = $this->getStudentsByGroup($current_group['sokr'], $current_group['fo']);
            $sql_search = 'SELECT * FROM acs_attendancelog_headmen WHERE gruppa="'. $current_group['sokr'] .'" ';
            $rez = $this->DB->QUR_SEL($sql_search);
            if(isset($rez[1])){
                $rez = $rez[1];
                $sql_delete = 'DELETE FROM acs_attendancelog_headmen WHERE gruppa="'. $current_group['sokr'] .'" ';
                $rez = $this->DB->QUR($sql_delete);
            }
            $sql_insert = 'INSERT INTO acs_attendancelog_headmen (id, user_id, gruppa, date_add, added_by) VALUES (0, '. $this->DB->rescape($_POST['headman_request']) .', "'. $current_group['sokr'] .'", "'. $current_time['date'] .'", '. $currentUserInfo['user_id'] .' )';
            $rez = $this->DB->QUR($sql_insert);
            return $rez;

        }
    }
    function mainPageAction()
    {
        $currentUserInfo = $this->currentUserInfo();
        $des = ''; if(isset($_GET['des'])) $des = $_GET['des'];
        if ($des == 'show'){
            $current_group = $this->getGroupNamebyID((int)$_GET['id']);
            $current_group_classes = $this->getClassesByGroup($current_group['sokr'], $current_group['fo']);
            $currentTime = $this->currentTime();
            $out = array();
            $tmp = $this->getStudentsByGroup($current_group['sokr'], $current_group['fo']);
            $out['students_all'] = $tmp['students'];
            if(isset($_POST['date_request'])) {
                $week_compare = $this->getWeekByDate(strtotime($_POST['date_request']));
                $day_compare = date('w', strtotime($_POST['date_request']));
                $db_date = $this->DB->rescape($_POST['date_request']);
            }else {
                $week_compare = $currentTime['week1'];
                $day_compare = $currentTime['day1'];
                $db_date = $currentTime['date'];
            }
            foreach ($current_group_classes['raspis'] as $class) {
                if ($class['week1'] == $week_compare) {
                    if($class['day1'] == $day_compare){
                        $out['day_name'] = $class['day_name'];
                        $out['day_info'][$class['time1']] = $class;
                        $out['day_info'][$class['time1']]['predmet_id'] = $this->predmetsAddEdit($class['predmet']);
                        foreach ($out['students_all'] as $student_id => $student_name){
                            $out['day_info'][$class['time1']]['students'][$student_id] = '0';
                            $sql_search = 'SELECT user_id, att FROM acs_attendancelog_students_attendance WHERE user_id="'. $student_id .'" AND gruppa="'. $current_group[1]['sokr'] .'" AND date1="'. $db_date .'" AND time1='. $class['time1'] .' AND predmet_id='. $out['day_info'][$class['time1']]['predmet_id'];
                            //$out['day_info'][$class['time1']]['search'] = $sql_search;
                            $search = $this->DB->QUR_SEL($sql_search);
                            if(isset($search[1])){
                                $out['day_info'][$class['time1']]['students'][$student_id] = $search[1]['att'];
                            }

                        }

                    }
                }
            }
            return $out;
        }
    }
    function headmanPageAction(){
        $des = ''; if(isset($_GET['des'])) $des = $_GET['des'];
        if($des == 'add_edit'){
            $out = array();
            $current_group = $this->getGroupNamebyID((int)$_GET['id']);
            $students = $this->getStudentsByGroup($current_group['sokr'], $current_group['fo']);
            $out['current_group'] = $current_group;
            $sql_search = 'SELECT * FROM acs_attendancelog_headmen WHERE gruppa="'. $current_group['sokr'] .'" ';
            $rez = $this->DB->QUR_SEL($sql_search);
            if (isset($rez[1])){
                $rez = $rez[1];
            }
            foreach ($students['students'] as $user_id => $student_name){
                $out['students'][$user_id]['student_name'] = $student_name;
                if($rez['user_id'] == $user_id){
                    $out['students'][$user_id]['headman'] = 1;
                    $out['headman'] = $student_name;
                }else{
                    $out['students'][$user_id]['headman'] = 0;
                }
            }
            return $out;
        }
    }
    function HTML()
    {
        GLOBAL $smarty;
        $html = '';
        $currentUserInfo = $this->currentUserInfo();
        $currentTime = $this->currentTime();
        $AttendanceAddEdit = $this->AttendanceAddEdit();// должен вызываться перед mainPageAction
        $headmanAddDelete = $this->headmanAddDelete();
        $mainPageActionResult = $this->mainPageAction();
        $headmanPageActionResult = $this->headmanPageAction();
        $predmetsAddEdit = $this->predmetsAddEdit('Исследование операций и методы оптимизации');

        //$html .= '<pre>'. print_r($groups,1) . '</pre>';
        //$html .= '<pre>'. print_r($currentUserInfo,1) . '</pre>';
        //$html .= '<pre>'. print_r($mainPageActionResult,1) . '</pre>';
        //$html .= '<pre>'. print_r($headmanPageActionResult,1) . '</pre>';
        //$html .= '<pre>'. print_r($predmetsAddEdit,1) . '</pre>';
        //$html .= '<pre>'. print_r($headmanAddDelete,1) . '</pre>';
        //$html .= '<pre>'. print_r($currentTime,1) . '</pre>';
        //$html .= '<pre>'. print_r($_SESSION,1) . '</pre>';
        //$html .= '<pre>'. print_r($AttendanceAddEdit,1) . '</pre>';
        //$html .= '<pre>'. print_r($_GET,1) . '</pre>';
        //$html .= '<pre>'. print_r($_POST,1) . '</pre>';
        //$html .= '<pre>'. print_r($_SESSION,1) . '</pre>';

        $page = ''; if(isset($_GET['page'])) $page = $_GET['page'];
        $des = ''; if(isset($_GET['des'])) $des = $_GET['des'];
        $smarty->assign('des', $des);
        $smarty->assign('name', $this->name);
        $smarty->assign('currentTime', $currentTime);
        $smarty->assign('currentUserInfo', $currentUserInfo);
        if($page == 'headman') {
            $facult_groups = $this->getAllGrupps($currentUserInfo['facult']['facult_id']);
            $smarty->assign('facult_groups',$facult_groups);
            $smarty->assign('headmanPageActionResult', $headmanPageActionResult);
            $smarty->clearCache('moduls/attendancelog/tpl/headman.html');
            $html .= $smarty->fetch('moduls/attendancelog/tpl/headman.html');
        }
        if ($page == ''){
            if($currentUserInfo['role'] == 'student'){
                $header = "Location: https://eios.mkgtu.ru/modul/attendancelog/main/show/" . $currentUserInfo['grupp_id'] . '/';
                header($header);
            }
            $groups = $this->getAllGrupps();
            $facult_groups = $this->getAllGrupps($currentUserInfo['facult']['facult_id']);
            $smarty->assign('groups',$groups);
            $smarty->assign('facult_groups',$facult_groups);
            $smarty->clearCache('moduls/attendancelog/tpl/main_page.html');
            $html .= $smarty->fetch('moduls/attendancelog/tpl/main_page.html');

        }
        if ($page == 'main'){
            if ($des == 'show'){
                $smarty->assign('AttendanceAddEdit', $AttendanceAddEdit);
                $smarty->assign('mainPageActionResult', $mainPageActionResult);
                $groupName = $this->getGroupNameByID((int)$_GET['id']);
                $groupName = $groupName[1]['sokr'];
                $smarty->assign('groupName', $groupName);
            }
            //$smarty->assign('groups',$groups);
            $smarty->clearCache('moduls/attendancelog/tpl/main_page.html');
            $html .= $smarty->fetch('moduls/attendancelog/tpl/main_page.html');

        }

        return $html;
    }
}