feat: Winkeyer

frontend/src/lib/gridPrefs.ts

@@ -0,0 +1,43 @@
+// Portable grid-column preferences (visibility / order / width / sort).
+//
+// Stored in the DB settings table (so they travel with the logbook and
+// survive a reinstall) AND mirrored to the WebView localStorage as a fast,
+// flicker-free cache. On a fresh machine localStorage is empty, so we fall
+// back to the DB copy and re-seed the cache.
+import { GetUIPref, SetUIPref } from '../../wailsjs/go/main/App';
+
+// loadLocal reads the cached column state synchronously (used in onGridReady
+// to apply instantly, before the async DB round-trip).
+export function loadLocal(key: string): any[] | null {
+  try {
+    const raw = localStorage.getItem(key);
+    const v = raw ? JSON.parse(raw) : null;
+    return Array.isArray(v) ? v : null;
+  } catch {
+    return null;
+  }
+}
+
+// loadRemote pulls the portable copy from the DB (null if none / unset).
+export async function loadRemote(key: string): Promise<any[] | null> {
+  try {
+    const v = await GetUIPref(key);
+    const parsed = v ? JSON.parse(v) : null;
+    return Array.isArray(parsed) ? parsed : null;
+  } catch {
+    return null;
+  }
+}
+
+// saveState write-throughs to both the cache and the DB (fire-and-forget).
+export function saveState(key: string, state: any[]) {
+  const json = JSON.stringify(state);
+  try { localStorage.setItem(key, json); } catch { /* quota / private mode */ }
+  SetUIPref(key, json).catch(() => { /* DB unavailable — cache still holds it */ });
+}
+
+// seedLocal writes a value into the cache without touching the DB (used after
+// hydrating the cache from the DB on a fresh machine).
+export function seedLocal(key: string, state: any[]) {
+  try { localStorage.setItem(key, JSON.stringify(state)); } catch { /* ignore */ }
+}