from progress.models import ProgressLesson, Progress


def add_lesson(user_out_key: str, course_token: str, lesson_token: str, teacher_key: str, is_hm: bool):

    p = Progress.objects.get(course_token=course_token, user__out_key=user_out_key)

    ProgressLesson.objects.get_or_create(
        progress=p,
        lesson_token=lesson_token,
        checker=user_out_key if is_hm else teacher_key,
    )