Initial commit

src_frontend_orig/carStorage.js

@@ -0,0 +1,76 @@
+import defaultCars from './carOptions.json';
+
+const storageKey = 'kentekenCars';
+
+const normalizeCars = (cars) =>
+  Array.isArray(cars) && cars.length ? cars : defaultCars;
+
+export const loadCars = async () => {
+  if (typeof window === 'undefined') {
+    return normalizeCars(defaultCars);
+  }
+  if (window.api?.loadCars) {
+    try {
+      const cars = await window.api.loadCars();
+      return normalizeCars(cars);
+    } catch (error) {
+      return normalizeCars(defaultCars);
+    }
+  }
+  const stored = window.localStorage.getItem(storageKey);
+  if (!stored) {
+    const fallback = normalizeCars(defaultCars);
+    window.localStorage.setItem(storageKey, JSON.stringify(fallback));
+    return fallback;
+  }
+  try {
+    const parsed = JSON.parse(stored);
+    return normalizeCars(parsed);
+  } catch (error) {
+    const fallback = normalizeCars(defaultCars);
+    window.localStorage.setItem(storageKey, JSON.stringify(fallback));
+    return fallback;
+  }
+};
+
+export const saveCars = async (cars) => {
+  if (typeof window === 'undefined') {
+    return;
+  }
+  if (window.api?.saveCars) {
+    await window.api.saveCars(normalizeCars(cars));
+    return;
+  }
+  const normalized = normalizeCars(cars);
+  window.localStorage.setItem(storageKey, JSON.stringify(normalized));
+};
+
+export const getCarsFolder = async () => {
+  if (typeof window === 'undefined') {
+    return '';
+  }
+  if (window.api?.getCarsFolder) {
+    return window.api.getCarsFolder();
+  }
+  return '';
+};
+
+export const selectCarsFolder = async () => {
+  if (typeof window === 'undefined') {
+    return null;
+  }
+  if (window.api?.selectCarsFolder) {
+    return window.api.selectCarsFolder();
+  }
+  return null;
+};
+
+export const resetCarsFolder = async () => {
+  if (typeof window === 'undefined') {
+    return null;
+  }
+  if (window.api?.resetCarsFolder) {
+    return window.api.resetCarsFolder();
+  }
+  return null;
+};