Function uploadProgress

src/lib/sync.ts:21–33

(userId: string)

// Upload current localStorage state to Supabase
export async function uploadProgress(userId: string): Promise<void> {
  const payload = {
    user_id: userId,
    completed: [...loadCompleted()],
    starred: [...loadStarred()],
    notes: loadNotes(),
    solved_dates: loadSolvedDates(),
    reminders: loadReminders(),
    updated_at: new Date().toISOString(),
  };

  await supabase.from("user_progress").upsert(payload, { onConflict: "user_id" });
}

// Download remote progress and replace local state with it
export async function downloadAndMerge(userId: string): Promise<boolean> {