<?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/>.

namespace mod_quiz;

/**
 * PHPUnit data generator testcase
 *
 * @package    mod_quiz
 * @category   phpunit
 * @copyright  2012 Matt Petro
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @covers \mod_quiz_generator
 */
final class generator_test extends \advanced_testcase {
    public function test_generator(): void {
        global $DB, $SITE;

        $this->resetAfterTest(true);

        $this->assertEquals(0, $DB->count_records('quiz'));

        /** @var \mod_quiz_generator $generator */
        $generator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
        $this->assertInstanceOf('mod_quiz_generator', $generator);
        $this->assertEquals('quiz', $generator->get_modulename());

        $generator->create_instance(['course' => $SITE->id]);
        $generator->create_instance(['course' => $SITE->id]);
        $createtime = time();
        $quiz = $generator->create_instance(['course' => $SITE->id, 'timecreated' => 0]);
        $this->assertEquals(3, $DB->count_records('quiz'));

        $cm = get_coursemodule_from_instance('quiz', $quiz->id);
        $this->assertEquals($quiz->id, $cm->instance);
        $this->assertEquals('quiz', $cm->modname);
        $this->assertEquals($SITE->id, $cm->course);

        $context = \context_module::instance($cm->id);
        $this->assertEquals($quiz->cmid, $context->instanceid);

        $this->assertEqualsWithDelta($createtime,
                $DB->get_field('quiz', 'timecreated', ['id' => $cm->instance]), 2);
    }

    public function test_generating_a_user_override(): void {
        $this->resetAfterTest(true);

        $generator = $this->getDataGenerator();
        $course = $generator->create_course();
        $user = $generator->create_user();
        $quiz = $generator->create_module('quiz', ['course' => $course->id]);
        $generator->enrol_user($user->id, $course->id, 'student');

        /** @var \mod_quiz_generator $quizgenerator */
        $quizgenerator = $generator->get_plugin_generator('mod_quiz');
        $quizgenerator->create_override([
            'quiz' => $quiz->id,
            'userid' => $user->id,
            'timeclose' => strtotime('2022-10-20'),
        ]);

        // Check the corresponding calendar event now exists.
        $events = calendar_get_events(strtotime('2022-01-01'),
                strtotime('2022-12-31'), $user->id, false, $course->id);
        $this->assertCount(1, $events);
        $event = reset($events);
        $this->assertEquals($user->id, $event->userid);
        $this->assertEquals(0, $event->groupid);
        $this->assertEquals(0, $event->courseid);
        $this->assertEquals('quiz', $event->modulename);
        $this->assertEquals($quiz->id, $event->instance);
        $this->assertEquals('close', $event->eventtype);
        $this->assertEquals(strtotime('2022-10-20'), $event->timestart);
    }

    public function test_generating_a_group_override(): void {
        $this->resetAfterTest(true);

        $generator = $this->getDataGenerator();
        $course = $generator->create_course();
        $quiz = $generator->create_module('quiz', ['course' => $course->id]);
        $group = $generator->create_group(['courseid' => $course->id]);

        /** @var \mod_quiz_generator $quizgenerator */
        $quizgenerator = $generator->get_plugin_generator('mod_quiz');
        $quizgenerator->create_override([
            'quiz' => $quiz->id,
            'groupid' => $group->id,
            'timeclose' => strtotime('2022-10-20'),
        ]);

        // Check the corresponding calendar event now exists.
        $events = calendar_get_events(strtotime('2022-01-01'),
                strtotime('2022-12-31'), false, $group->id, $course->id);
        $this->assertCount(1, $events);
        $event = reset($events);
        $this->assertEquals(0, $event->userid);
        $this->assertEquals($group->id, $event->groupid);
        $this->assertEquals($course->id, $event->courseid);
        $this->assertEquals('quiz', $event->modulename);
        $this->assertEquals($quiz->id, $event->instance);
        $this->assertEquals('close', $event->eventtype);
        $this->assertEquals(strtotime('2022-10-20'), $event->timestart);
    }

    public function test_generating_a_grade_item(): void {
        $this->resetAfterTest();

        // Create a quiz to use in the test.
        $generator = $this->getDataGenerator();
        $course = $generator->create_course();
        $quiz = $generator->create_module('quiz', ['course' => $course->id]);

        // Create a grade item.
        /** @var \mod_quiz_generator $quizgenerator */
        $quizgenerator = $generator->get_plugin_generator('mod_quiz');
        $newgradeitem = $quizgenerator->create_grade_item([
            'quizid' => $quiz->id,
            'name' => 'Awesomeness!',
        ]);

        // Verify the grade item was created correctly.
        $this->assertObjectHasProperty('id', $newgradeitem);
        $this->assertEquals($quiz->id, $newgradeitem->quizid);
        $this->assertEquals('Awesomeness!', $newgradeitem->name);
    }
}