Function loadMap

apps/kimi-web/src/composables/useInputHistory.ts:43–59

* Read the persisted history map, migrating the legacy global `string[]` format * (pre per-session) into the current session on first sight. Migration is * one-shot: once a sessioned map is written, the array branch never runs again.

(sessionId: string | undefined)

 * one-shot: once a sessioned map is written, the array branch never runs again.
 */
function loadMap(sessionId: string | undefined): Record<string, string[]> {
  const raw = safeGetJson<unknown>(STORAGE_KEYS.inputHistory);
  if (Array.isArray(raw)) {
    const list = raw.filter((s): s is string => typeof s === 'string' && s.length > 0);
    // No session yet (empty-session composer): leave the legacy value in place
    // so a later docked mount — which has a session id — can migrate it.
    if (!sessionId || list.length === 0) return {};
    const capped = list.length > MAX_HISTORY ? list.slice(-MAX_HISTORY) : list;
    const map = { [sessionId]: capped };
    safeSetJson(STORAGE_KEYS.inputHistory, map);
    return map;
  }
  if (raw && typeof raw === 'object') {
    return raw as Record<string, string[]>;
  }
  return {};
}

export function useInputHistory(deps: InputHistoryDeps) {
  const { text, textareaRef, autosize, sessionId } = deps;