<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * timetable block caps.
 *
 * @package    block_timetable
 * @copyright  Raphael Dannecker <raphael.dannecker@steinbeisschule-reutlingen.de>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

use block_timetable\timetable;

class block_timetable extends block_base {

    function init() {
        $this->title = get_string('pluginname', 'block_timetable');
    }

    function get_content() {
        global $CFG, $OUTPUT, $USER, $PAGE;

        if ($this->content !== null) {
            return $this->content;
        }

        if (empty($this->instance)) {
            $this->content = '';
            return $this->content;
        }

        $this->content = new stdClass();
        $this->content->items = array();
        $this->content->icons = array();
	$this->content->footer = '<div class="timetable_legend"><a href="javascript:M.block_timetable.view_subject()">Fächer</a>  -  <a href="javascript:M.block_timetable.view_teacher()">Lehrer</a>  -  <a href="javascript:M.block_timetable.view_room()">Räume</a></div>';
	$this->content->text = "";

	/*
        // user/index.php expect course context, so get one if page has module context.
	$currentcontext = $this->page->context->get_course_context(false);

        if (! empty($this->config->text)) {
            $this->content->text = $this->config->text;
        }

        $this->content->text = '';
        if (empty($currentcontext)) {
            return $this->content;
        }
        if ($this->page->course->id == SITEID) {
            $this->content->text .= "site context";
	}
	 */
//	echo var_dump($USER);
	$view1 = 'subject';	
	$view2 = 'teacher';	
        if ($this->page->course->idnumber && $this->page->course->shortname) {
		$class = $this->page->course->shortname;
            	$this->content->text .= "Stundenplan der Klasse $class<br>";
		$ttable = new timetable('class',$class);
	} elseif ($USER->department == "Lehrer") {
		$teacher = $USER->username;
		$teacher = str_replace("l_", "", $teacher);
		$teacher = str_replace("-fvs", "", $teacher);
            	$this->content->text .= "Stundenplan von ".(substr($USER->firstname,0,1)).". {$USER->lastname}<br>";
		$ttable = new timetable('teacher',$teacher);
		$view1 = 'class';
		$view2 = 'subject';
		$this->content->footer = '<div class="timetable_legend"><a href="javascript:M.block_timetable.view_class()">Klassen</a>  -  <a href="javascript:M.block_timetable.view_subject()">Fächer</a>  -  <a href="javascript:M.block_timetable.view_room()">Räume</a></div>';
	} elseif ($USER->department) {
		$class = $USER->department;
		$class = str_replace("_", "/", $class);
            	$this->content->text .= "Stundenplan der Klasse $class<br>";
		$ttable = new timetable('class',$class);
	} else {
		return $this->content;
	}

	//$context_id = get_context_instance_by_id($course->id);
	//echo "Contextid = $contextid->contextlevel\n";

	/*
	$numdayweek = 5 + get_config('timetable', 'saturday');

	$date = new DateTime();
	$monday = new DateTime();

	$dayofweek = $date->format('w');
	if ($dayofweek >= $numdayweek) {
		$monday->add(new DateInterval("P".(8-$dayofweek)."D"));
	} elseif ($dayofweek < 1) {
		$monday->add(new DateInterval("P1D"));
	} else {
		$monday->sub(new DateInterval("P{$dayofweek}D"));
	}

	$week = $monday->format("W");
	$week++;
	$lastday = new DateTime($monday->format('Y-m-d\TH:i:sP'));
	$lastday->add(new DateInterval("P".($numdayweek-1)."D"));
	$this->content->text .= $monday->format('d.m') . " - " . $lastday->format('d.m');
	//$ttable = new timetable('class',$class);
	$ttable->read_db($week);
	 */
	//$this->content->text .= $ttable->monday->format('d.m') . " - " . $ttable->lastday->format('d.m');
		
	$jsmodule = array(
			'name'     => 'block_timetable',
			'fullpath' => '/blocks/timetable/module.js',
			'requires' => array()
		);
	$opts =Array();
	$opts['someinstancesetting'] = 1;
	$PAGE->requires->js_init_call('M.block_timetable.helper.init', array($opts),false,$jsmodule);

	$this->content->text .= html_writer::start_tag('div', ['data-region' => 'calendar', 'class' => 'maincalendar']);	
	$this->content->text .= html_writer::start_tag('div', ['class' =>'slider', 'id'=>'timetable_frame']);	
	$this->content->text .= html_writer::start_tag('div', ['class' =>'slides']);	
	for ($i=0; $i<3; $i++) {
		$ttable->read_db($i);
//		$this->content->text .= $ttable->print_navigation($i);
		//$this->content->text .= html_writer::start_tag('div', ['class' =>'slide', 'id'=>"slide-$i", 'data-region' => 'calendar']);	
		$this->content->text .= html_writer::start_tag('div', ['class' => 'slide', 'id'=>"slide-$i"]);	
		//$this->content->text .= $ttable->print_table($view1);
		$this->content->text .= $ttable->print_table($view1,$i);
		$this->content->text .= $ttable->print_table($view2,$i);
		$this->content->text .= $ttable->print_table('room',$i);
		$this->content->text .= html_writer::end_tag('div');
	}
	$this->content->text .= html_writer::end_tag('div');
	$this->content->text .= html_writer::end_tag('div');
	$this->content->text .= html_writer::end_tag('div');

	/*
	$this->content->text .= html_writer::start_tag('div', ['data-region' => 'calendar', 'style' => 'display: none;']);	
	$this->content->text .= $ttable->print_table($view1);
	$this->content->text .= html_writer::end_tag('div');
	$this->content->text .= html_writer::start_tag('div', ['data-region' => 'calendar', 'style' => 'display: none;']);	
	$this->content->text .= $ttable->print_table($view2);
	$this->content->text .= html_writer::end_tag('div');
	$this->content->text .= html_writer::start_tag('div', ['data-region' => 'calendar', 'style' => 'displaay: none;']);	
	$this->content->text .= $ttable->print_table('room');
	$this->content->text .= html_writer::end_tag('div');
	$this->content->text .= html_writer::end_tag('div');
	 */
        return $this->content;
    }

    // my moodle can only have SITEID and it's redundant here, so take it away
    public function applicable_formats() {
        return array('all' => true,
                     'site' => true,
                     'site-index' => true,
                     'course-view' => true, 
                     'course-view-social' => false,
                     'mod' => true, 
                     'mod-quiz' => false);
    }

    public function instance_allow_multiple() {
          return true;
    }

    function has_config() {return true;}

    public function cron() {
            mtrace( "Hey, my cron script is running" );
             
                 // do something
                  
                      return true;
    }
}