<?php

require_once($CFG->libdir.'/completionlib.php');

function set_activity_completion($course, $cm, $userId) {
    // Ensure completion is enabled for the course module.
    $completion = new completion_info($course);
    
    if ($completion->is_enabled($cm)) {
        // Mark the activity as completed for this user.
        $completion->update_state($cm, COMPLETION_COMPLETE, $userId);
    }
}


$courseid = required_param('courseid', PARAM_INT);
$cmid = required_param('cmid', PARAM_INT);

$userid = $USER->id;

$course = get_course($courseid);
$cm = get_coursemodule_from_id(null, $cmid);

set_activity_completion($course, $cm, $userid);