<?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 qbank_usage;

use mod_quiz\quiz_attempt;

/**
 * Tests for the data of question usage from differnet areas like helper or usage table.
 *
 * @package    qbank_usage
 * @copyright  2021 Catalyst IT Australia Pty Ltd
 * @author     Safat Shahin <safatshahin@catalyst-au.net>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @coversDefaultClass \qbank_usage\tables\question_usage_table
 * @covers \qbank_usage_output_fragment_question_usage
 */
class question_usage_test extends \advanced_testcase {

    /**
     * Test question usage data.
     */
    public function test_question_usage() {
        global $PAGE;
        $this->resetAfterTest(true);
        $layout = '1,2,0';
        // Make a user to do the quiz.
        $user = $this->getDataGenerator()->create_user();
        $course = $this->getDataGenerator()->create_course();
        // Make a quiz.
        $quizgenerator = $this->getDataGenerator()->get_plugin_generator('mod_quiz');
        $quiz = $quizgenerator->create_instance(['course' => $course->id,
            'grade' => 100.0, 'sumgrades' => 2, 'layout' => $layout]);

        $quizobj = \mod_quiz\quiz_settings::create($quiz->id, $user->id);

        $quba = \question_engine::make_questions_usage_by_activity('mod_quiz', $quizobj->get_context());
        $quba->set_preferred_behaviour($quizobj->get_quiz()->preferredbehaviour);

        $questiongenerator = $this->getDataGenerator()->get_plugin_generator('core_question');
        $cat = $questiongenerator->create_question_category();

        $questions = [];
        $page = 1;
        foreach (explode(',', $layout) as $slot) {
            if ($slot == 0) {
                $page += 1;
                continue;
            }

            $question = $questiongenerator->create_question('shortanswer', null, ['category' => $cat->id]);
            quiz_add_quiz_question($question->id, $quiz, $page);
            $questions[] = $question;
        }

        $timenow = time();
        $attempt = quiz_create_attempt($quizobj, 1, false, $timenow, false, $user->id);
        quiz_start_new_attempt($quizobj, $quba, $attempt, 1, $timenow);
        quiz_attempt_save_started($quizobj, $quba, $attempt);
        $attemptdata = quiz_attempt::create($attempt->id);

        $this->setAdminUser();
        $PAGE->set_url(new \moodle_url('/'));
        foreach ($questions as $question) {
            $questionusagetable = qbank_usage_output_fragment_question_usage(['questionid' => $question->id]);
            // Test usage table contains the quiz data which was attempted.
            $this->assertStringContainsString($quiz->name, $questionusagetable);

            // Test usage table contains the course data where the quiz was attempted.
            $this->assertStringContainsString($course->fullname, $questionusagetable);
        }
    }
}
