Function lessonCompletedAt

lessonCompletedAt(
    lessonId: string,
    enrollment: Pick<Enrollment, "completions" | "progressResetAt"> | null,
    progress: Progress | null,
): string | undefined
When a lesson counts as completed for a client: the provider's manual completion, or the client's own — unless it predates a progress reset.
Parameters
- lessonId: string
- enrollment: Pick<Enrollment, "completions" | "progressResetAt"> | null
- progress: Progress | null
Returns string | undefined
- Defined in packages/courses/src/engine/progress.ts:93