// classroom ships the whole learner surface -- modules, lessons, progress and
// the graded test -- as controlled components. You supply the data and the
// handlers; there is no course-player UI to rebuild.
<CoursePlayer
  course={course}
  enrollment={enrollment}
  completedLessonIds={completedLessonIds}
  onMarkLessonComplete={(lessonId) => router.post(`/lessons/${lessonId}/complete`)}
  onStartAttempt={() => api.post(`/tests/${test.id}/attempts`)}
  onSubmitAttempt={(answers) => api.post(`/attempts/${attempt.id}/submit`, answers)}
/>

// Not to a route and not to a video player -- that is what makes it resumable,
// and what makes certification a query rather than a guess.
public function complete(Request $request, Lesson $lesson): RedirectResponse
{
    $request->user()->progress()->updateOrCreate(
        ['lesson_id' => $lesson->id],
        ['completed_at' => now(), 'seconds' => $request->integer('seconds')],
    );

    return back();
}

// An attempt with no score yet is AWAITING GRADING. Collapsing that into a
// boolean pass/fail is how a learner gets told they failed a short-answer test
// nobody has marked. The component renders the three states separately, so the
// model has to keep them separate too.
public function getStatusAttribute(): string
{
    return match (true) {
        $this->graded_at === null => 'awaiting_grading',
        $this->score >= $this->test->pass_mark => 'passed',
        default => 'failed',
    };
}

use ParticleAcademy\Fms\Facades\FMS;

// The learning side asks the SAME question the billing side answers, so an
// expired subscription closes the lessons without a second source of truth --
// and without the content staying reachable by URL.
'features' => [
    'cohort-coaching' => [
        'name'    => 'Live cohort coaching',
        'type'    => 'boolean',
        'enabled' => fn ($user) => $user->subscribedToProduct('coaching'),
    ],
],

abort_unless(FMS::canAccess('cohort-coaching'), 403);