update at 2026-02-08 18:28:39

miniprogram/utils/mp/storage.js

@@ -0,0 +1,60 @@
+const STORAGE_KEYS = {
+  APP_STATE: 'font2svg:app-state',
+  FAVORITES: 'font2svg:favorites',
+}
+
+function getStorage(key, fallbackValue) {
+  try {
+    const value = wx.getStorageSync(key)
+    if (value === '' || value === undefined || value === null) {
+      return fallbackValue
+    }
+    return value
+  } catch (error) {
+    console.warn('读取本地存储失败:', key, error)
+    return fallbackValue
+  }
+}
+
+function setStorage(key, value) {
+  try {
+    wx.setStorageSync(key, value)
+  } catch (error) {
+    console.warn('写入本地存储失败:', key, error)
+  }
+}
+
+function loadAppState() {
+  return getStorage(STORAGE_KEYS.APP_STATE, {})
+}
+
+function saveAppState(partialState) {
+  const current = loadAppState()
+  const next = {
+    ...current,
+    ...partialState,
+    updatedAt: Date.now(),
+  }
+  setStorage(STORAGE_KEYS.APP_STATE, next)
+  return next
+}
+
+function loadFavorites() {
+  return getStorage(STORAGE_KEYS.FAVORITES, [])
+}
+
+function saveFavorites(favorites) {
+  const unique = Array.from(new Set(favorites))
+  setStorage(STORAGE_KEYS.FAVORITES, unique)
+  return unique
+}
+
+module.exports = {
+  STORAGE_KEYS,
+  getStorage,
+  setStorage,
+  loadAppState,
+  saveAppState,
+  loadFavorites,
+  saveFavorites,
+}