| 1 | export const MODEL_FAVORITES_STORAGE_KEY = "reasonix-model-favorites-v1"; |
| 2 | |
| 3 | type ReadableStorage = Pick<Storage, "getItem">; |
| 4 | type WritableStorage = Pick<Storage, "setItem">; |
| 5 | |
| 6 | function browserStorage(): Storage | undefined { |
| 7 | return typeof localStorage === "undefined" ? undefined : localStorage; |
| 8 | } |
| 9 | |
| 10 | export function normalizeModelFavorites(value: unknown): string[] { |
| 11 | if (!Array.isArray(value)) return []; |
| 12 | return [...new Set(value.filter((item): item is string => typeof item === "string" && item.trim().length > 0))]; |
| 13 | } |
| 14 | |
| 15 | export function readModelFavorites(storage: ReadableStorage | undefined = browserStorage()): Set<string> { |
| 16 | if (!storage) return new Set(); |
| 17 | try { |
| 18 | const raw = storage.getItem(MODEL_FAVORITES_STORAGE_KEY); |
| 19 | return new Set(raw ? normalizeModelFavorites(JSON.parse(raw)) : []); |
| 20 | } catch { |
| 21 | return new Set(); |
| 22 | } |
| 23 | } |
| 24 | |
| 25 | export function writeModelFavorites(favorites: ReadonlySet<string>, storage: WritableStorage | undefined = browserStorage()): boolean { |
| 26 | if (!storage) return false; |
| 27 | try { |
| 28 | storage.setItem(MODEL_FAVORITES_STORAGE_KEY, JSON.stringify([...favorites].sort())); |
| 29 | return true; |
| 30 | } catch { |
| 31 | return false; |
| 32 | } |
| 33 | } |
| 34 |