<?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 core_completion;

/**
 * Test completion API.
 *
 * @package core_completion
 * @category test
 * @copyright 2017 Mark Nelson <markn@moodle.com>
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class api_test extends \advanced_testcase {

    /**
     * Test setup.
     */
    public function setUp(): void {
        $this->resetAfterTest();
    }

    public function test_update_completion_date_event() {
        global $CFG, $DB;

        $this->setAdminUser();

        // Create a course.
        $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));

        // Create an assign activity.
        $time = time();
        $assign = $this->getDataGenerator()->create_module('assign', array('course' => $course->id));

        // Create the completion event.
        $CFG->enablecompletion = true;
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, $time);

        // Check that there is now an event in the database.
        $events = $DB->get_records('event');
        $this->assertCount(1, $events);

        // Get the event.
        $event = reset($events);

        // Confirm the event is correct.
        $this->assertEquals('assign', $event->modulename);
        $this->assertEquals($assign->id, $event->instance);
        $this->assertEquals(CALENDAR_EVENT_TYPE_ACTION, $event->type);
        $this->assertEquals(\core_completion\api::COMPLETION_EVENT_TYPE_DATE_COMPLETION_EXPECTED, $event->eventtype);
        $this->assertEquals($time, $event->timestart);
        $this->assertEquals($time, $event->timesort);

        require_once($CFG->dirroot . '/course/lib.php');
        // Delete the module.
        course_delete_module($assign->cmid);

        // Check we don't get a failure when called on a deleted module.
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', null, $time);
    }

    public function test_update_completion_date_event_update() {
        global $CFG, $DB;

        $this->setAdminUser();

        // Create a course.
        $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));

        // Create an assign activity.
        $time = time();
        $assign = $this->getDataGenerator()->create_module('assign', array('course' => $course->id));

        // Create the event.
        $CFG->enablecompletion = true;
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, $time);

        // Call it again, but this time with a different time.
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, $time + DAYSECS);

        // Check that there is still only one event in the database.
        $events = $DB->get_records('event');
        $this->assertCount(1, $events);

        // Get the event.
        $event = reset($events);

        // Confirm that the event has been updated.
        $this->assertEquals('assign', $event->modulename);
        $this->assertEquals($assign->id, $event->instance);
        $this->assertEquals(CALENDAR_EVENT_TYPE_ACTION, $event->type);
        $this->assertEquals(\core_completion\api::COMPLETION_EVENT_TYPE_DATE_COMPLETION_EXPECTED, $event->eventtype);
        $this->assertEquals($time + DAYSECS, $event->timestart);
        $this->assertEquals($time + DAYSECS, $event->timesort);
    }

    public function test_update_completion_date_event_delete() {
        global $CFG, $DB;

        $this->setAdminUser();

        // Create a course.
        $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));

        // Create an assign activity.
        $time = time();
        $assign = $this->getDataGenerator()->create_module('assign', array('course' => $course->id));

        // Create the event.
        $CFG->enablecompletion = true;
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, $time);

        // Call it again, but the time specified as null.
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, null);

        // Check that there is no event in the database.
        $this->assertEquals(0, $DB->count_records('event'));
    }

    public function test_update_completion_date_event_completion_disabled() {
        global $CFG, $DB;

        $this->setAdminUser();

        // Create a course.
        $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));

        // Create an assign activity.
        $time = time();
        $assign = $this->getDataGenerator()->create_module('assign', array('course' => $course->id));

        // Try and create the completion event with completion disabled.
        $CFG->enablecompletion = false;
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, $time);

        // Check that there is no event in the database.
        $this->assertEquals(0, $DB->count_records('event'));
    }

    public function test_update_completion_date_event_update_completion_disabled() {
        global $CFG, $DB;

        $this->setAdminUser();

        // Create a course.
        $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));

        // Create an assign activity.
        $time = time();
        $assign = $this->getDataGenerator()->create_module('assign', array('course' => $course->id));

        // Create the completion event.
        $CFG->enablecompletion = true;
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, $time);

        // Disable completion.
        $CFG->enablecompletion = false;

        // Try and update the completion date.
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, $time + DAYSECS);

        // Check that there is an event in the database.
        $events = $DB->get_records('event');
        $this->assertCount(1, $events);

        // Get the event.
        $event = reset($events);

        // Confirm the event has not changed.
        $this->assertEquals('assign', $event->modulename);
        $this->assertEquals($assign->id, $event->instance);
        $this->assertEquals(CALENDAR_EVENT_TYPE_ACTION, $event->type);
        $this->assertEquals(\core_completion\api::COMPLETION_EVENT_TYPE_DATE_COMPLETION_EXPECTED, $event->eventtype);
        $this->assertEquals($time, $event->timestart);
        $this->assertEquals($time, $event->timesort);
    }

    public function test_update_completion_date_event_delete_completion_disabled() {
        global $CFG, $DB;

        $this->setAdminUser();

        // Create a course.
        $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));

        // Create an assign activity.
        $time = time();
        $assign = $this->getDataGenerator()->create_module('assign', array('course' => $course->id));

        // Create the completion event.
        $CFG->enablecompletion = true;
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, $time);

        // Disable completion.
        $CFG->enablecompletion = false;

        // Should still be able to delete completion events even when completion is disabled.
        \core_completion\api::update_completion_date_event($assign->cmid, 'assign', $assign, null);

        // Check that there is now no event in the database.
        $this->assertEquals(0, $DB->count_records('event'));
    }

> 
}
>     /**
>      * Test for mark_course_completions_activity_criteria().
>      */
>     public function test_mark_course_completions_activity_criteria() {
>         global $DB, $CFG;
>         require_once($CFG->dirroot.'/completion/criteria/completion_criteria_activity.php');
>         $this->resetAfterTest(true);
> 
>         $course = $this->getDataGenerator()->create_course(array('enablecompletion' => 1));
>         $student1 = $this->getDataGenerator()->create_user();
>         $student2 = $this->getDataGenerator()->create_user();
> 
>         $teacher = $this->getDataGenerator()->create_user();
>         $studentrole = $DB->get_record('role', array('shortname' => 'student'));
>         $teacherrole = $DB->get_record('role', array('shortname' => 'editingteacher'));
> 
>         $this->getDataGenerator()->enrol_user($teacher->id, $course->id, $teacherrole->id);
>         $this->getDataGenerator()->enrol_user($student1->id, $course->id, $studentrole->id);
>         $this->getDataGenerator()->enrol_user($student2->id, $course->id, $studentrole->id);
> 
>         $data = $this->getDataGenerator()->create_module('data', array('course' => $course->id),
>             array('completion' => 1));
>         $cmdata = get_coursemodule_from_id('data', $data->cmid);
>         $cm = get_coursemodule_from_instance('data', $data->id);
>         $c = new \completion_info($course);
> 
>         // Add activity completion criteria.
>         $criteriadata = new \stdClass();
>         $criteriadata->id = $course->id;
>         $criteriadata->criteria_activity = array();
>         // Some activities.
>         $criteriadata->criteria_activity[$cmdata->id] = 1;
>         $criterion = new \completion_criteria_activity();
>         $criterion->update_config($criteriadata);
> 
>         $this->setUser($teacher);
> 
>         // Mark activity complete for both users.
>         $completion = new \stdClass();
>         $completion->coursemoduleid = $cm->id;
>         $completion->completionstate = COMPLETION_COMPLETE;
>         $completion->timemodified = time();
>         $completion->viewed = COMPLETION_NOT_VIEWED;
>         $completion->overrideby = null;
> 
>         $completion->id = 0;
>         $completion->userid = $student1->id;
>         $c->internal_set_data($cm, $completion, true);
> 
>         $completion->id = 0;
>         $completion->userid = $student2->id;
>         $c->internal_set_data($cm, $completion, true);
> 
>         // Run instant course completions for student1. Only student1 will be marked as completed a course.
>         $userdata = ['userid' => $student1->id, 'courseid' => $course->id];
>         $actual = $DB->get_records('course_completions');
>         $this->assertEmpty($actual);
> 
>         $coursecompletionid = \core_completion\api::mark_course_completions_activity_criteria($userdata);
> 
>         $actual = $DB->get_records('course_completions');
>         $this->assertEquals(reset($actual)->id, $coursecompletionid);
>         $this->assertEquals(1, count($actual));
>         $this->assertEquals($student1->id, reset($actual)->userid);
> 
>         // Run course completions cron. Both students will be marked as completed a course.
>         $coursecompletionid = \core_completion\api::mark_course_completions_activity_criteria();
>         $this->assertEquals(0, $coursecompletionid);
>         $actual = $DB->get_records('course_completions');
>         $students = [$student1->id, $student2->id];
>         $this->assertEquals(2, count($actual));
>         $this->assertContains(reset($actual)->userid, $students);
>         $this->assertContains(end($actual)->userid, $students);
>     }
> 
>     /**
>      * Test for mark_course_completions_activity_criteria() with different completionpassgrade settings.
>      * @covers ::mark_course_completions_activity_criteria
>      */
>     public function test_mark_course_completions_activity_criteria_completion_states() {
>         global $DB, $CFG;
>         require_once($CFG->dirroot . '/completion/criteria/completion_criteria_activity.php');
>         $this->resetAfterTest(true);
> 
>         $courses[] = $this->getDataGenerator()->create_course(['shortname' => 'completionpassgradenotset',
>             'enablecompletion' => 1]);
>         $courses[] = $this->getDataGenerator()->create_course(['shortname' => 'completionpassgradeset',
>             'enablecompletion' => 1]);
> 
>         $student1 = $this->getDataGenerator()->create_user();
>         $student2 = $this->getDataGenerator()->create_user();
> 
>         $teacher = $this->getDataGenerator()->create_user();
>         $studentrole = $DB->get_record('role', array('shortname' => 'student'));
>         $teacherrole = $DB->get_record('role', array('shortname' => 'editingteacher'));
> 
>         foreach ($courses as $course) {
>             $this->getDataGenerator()->enrol_user($teacher->id, $course->id, $teacherrole->id);
>             $this->getDataGenerator()->enrol_user($student1->id, $course->id, $studentrole->id);
>             $this->getDataGenerator()->enrol_user($student2->id, $course->id, $studentrole->id);
> 
>             $completioncriteria = [
>                 'completionusegrade' => 1,
>                 'gradepass' => 50
>             ];
> 
>             if ($course->shortname == 'completionpassgradeset') {
>                 $completioncriteria['completionpassgrade'] = 1;
>             }
> 
>             /** @var \mod_assign_generator $assigngenerator */
>             $assigngenerator = $this->getDataGenerator()->get_plugin_generator('mod_assign');
>             $assign = $assigngenerator->create_instance([
>                     'course' => $course->id,
>                     'completion' => COMPLETION_ENABLED,
>                 ] + $completioncriteria);
> 
>             $cmassing = get_coursemodule_from_id('assign', $assign->cmid);
>             $cm = get_coursemodule_from_instance('assign', $assign->id);
>             $c = new \completion_info($course);
> 
>             // Add activity completion criteria.
>             $criteriadata = new \stdClass();
>             $criteriadata->id = $course->id;
>             $criteriadata->criteria_activity = array();
>             // Some activities.
>             $criteriadata->criteria_activity[$cmassing->id] = 1;
>             $criterion = new \completion_criteria_activity();
>             $criterion->update_config($criteriadata);
> 
>             $this->setUser($teacher);
> 
>             // Mark user completions.
>             $completion = new \stdClass();
>             $completion->coursemoduleid = $cm->id;
>             $completion->timemodified = time();
>             $completion->viewed = COMPLETION_NOT_VIEWED;
>             $completion->overrideby = null;
> 
>             // Student1 achieved passgrade.
>             $completion->id = 0;
>             $completion->completionstate = COMPLETION_COMPLETE_PASS;
>             $completion->userid = $student1->id;
>             $c->internal_set_data($cm, $completion, true);
> 
>             // Student2 has not achieved passgrade.
>             $completion->id = 0;
>             $completion->completionstate = COMPLETION_COMPLETE_FAIL;
>             $completion->userid = $student2->id;
>             $c->internal_set_data($cm, $completion, true);
> 
>             $actual = $DB->get_records('course_completions', ['course' => $course->id]);
>             $this->assertEmpty($actual);
> 
>             // Run course completions cron.
>             $coursecompletionid = \core_completion\api::mark_course_completions_activity_criteria();
>             $this->assertEquals(0, $coursecompletionid);
>             $actual = $DB->get_records('course_completions', ['course' => $course->id]);
> 
>             if ($course->shortname == 'completionpassgradeset') {
>                 // Only student1 has completed a course.
>                 $this->assertEquals(1, count($actual));
>                 $this->assertEquals($student1->id, reset($actual)->userid);
>             } else {
>                 // Both students completed a course.
>                 $students = [$student1->id, $student2->id];
>                 $this->assertEquals(2, count($actual));
>                 $this->assertContains(reset($actual)->userid, $students);
>                 $this->assertContains(end($actual)->userid, $students);
>             }
>         }
>     }