<?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 qbehaviour_informationitem;

use question_state;

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

global $CFG;
require_once(__DIR__ . '/../../../engine/lib.php');
require_once(__DIR__ . '/../../../engine/tests/helpers.php');


/**
 * Unit tests for the information item behaviour.
 *
 * @package   qbehaviour_informationitem
 * @category  test
 * @copyright 2009 The Open University
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @covers \qbehaviour_informationitem
 */
final class walkthrough_test extends \qbehaviour_walkthrough_test_base {
    public function test_informationitem_feedback_description(): void {

        // Create a true-false question with correct answer true.
        $description = \test_question_maker::make_question('description');
        $this->start_attempt_at_question($description, 'deferredfeedback');

        // Check the initial state.
        $this->check_current_state(question_state::$todo);
        $this->check_current_mark(null);
        $this->check_current_output($this->get_contains_question_text_expectation($description),
                $this->get_contains_hidden_expectation(
                        $this->quba->get_field_prefix($this->slot) . '-seen', 1),
                $this->get_does_not_contain_feedback_expectation());

        // Check no hidden input when read-only.
        $this->displayoptions->readonly = true;
        $this->check_current_output($this->get_contains_question_text_expectation($description),
                $this->get_does_not_contain_hidden_expectation(
                        $this->quba->get_field_prefix($this->slot) . '-seen', 1));
        $this->displayoptions->readonly = false;

        // Process a submission indicating this question has been seen.
        $this->process_submission(['-seen' => 1]);

        $this->check_current_state(question_state::$complete);
        $this->check_current_mark(null);
        $this->check_current_output($this->get_does_not_contain_correctness_expectation(),
                new \question_no_pattern_expectation(
                '/type=\"hidden\"[^>]*name=\"[^"]*seen\"|name=\"[^"]*seen\"[^>]*type=\"hidden\"/'),
                $this->get_does_not_contain_feedback_expectation());

        // Finish the attempt.
        $this->quba->finish_all_questions();

        // Verify.
        $this->check_current_state(question_state::$finished);
        $this->check_current_mark(null);
        $this->check_current_output(
                $this->get_contains_question_text_expectation($description),
                $this->get_contains_general_feedback_expectation($description));

        // Process a manual comment.
        $this->manual_grade('Not good enough!', null, FORMAT_HTML);

        $this->check_current_state(question_state::$manfinished);
        $this->check_current_mark(null);
        $this->check_current_output(
                new \question_pattern_expectation('/' . preg_quote('Not good enough!', '/') . '/'));

        // Check that trying to process a manual comment with a grade causes an exception.
        $this->expectException('moodle_exception');
        $this->manual_grade('Not good enough!', 1, FORMAT_HTML);
    }

    public function test_informationitem_regrade(): void {

        // Create a true-false question with correct answer true.
        $description = \test_question_maker::make_question('description');
        $this->start_attempt_at_question($description, 'deferredfeedback');

        // Check the initial state.
        $this->check_current_state(question_state::$todo);
        $this->check_current_mark(null);
        $this->check_current_output($this->get_contains_question_text_expectation($description),
                $this->get_contains_hidden_expectation(
                        $this->quba->get_field_prefix($this->slot) . '-seen', 1),
                $this->get_does_not_contain_feedback_expectation());

        // Process a submission indicating this question has been seen.
        $this->process_submission(['-seen' => 1]);

        $this->check_current_state(question_state::$complete);
        $this->check_current_mark(null);
        $this->check_current_output($this->get_does_not_contain_correctness_expectation(),
                new \question_no_pattern_expectation(
                '/type=\"hidden\"[^>]*name=\"[^"]*seen\"|name=\"[^"]*seen\"[^>]*type=\"hidden\"/'),
                $this->get_does_not_contain_feedback_expectation());

        // Finish the attempt.
        $this->quba->finish_all_questions();

        // Verify.
        $this->check_current_state(question_state::$finished);
        $this->check_current_mark(null);
        $this->check_step_count(3);
        $this->check_current_output(
                $this->get_contains_question_text_expectation($description),
                $this->get_contains_general_feedback_expectation($description));

        // Regrade the attempt.
        $this->quba->regrade_all_questions(true);

        // Verify.
        $this->check_current_mark(null);
        $this->check_step_count(3);
        $this->check_current_output(
                $this->get_contains_question_text_expectation($description),
                $this->get_contains_general_feedback_expectation($description));
    }
}