feat: 侧边栏记录

src/utils/storage/local.ts

@@ -0,0 +1,59 @@
+import { deCrypto, enCrypto } from '../crypto'
+
+interface StorageData<T = any> {
+  value: T
+  expire: number | null
+}
+
+function createLocalStorage() {
+  const DEFAULT_CACHE_TIME = 60 * 60 * 24 * 7 // 7 days
+
+  function set<T = any>(key: string, value: T, expire: number | null = DEFAULT_CACHE_TIME) {
+    const storageData: StorageData<T> = {
+      value,
+      expire: expire !== null ? new Date().getTime() + expire * 1000 : null,
+    }
+    const json = enCrypto(storageData)
+    window.localStorage.setItem(key, json)
+  }
+
+  function get(key: string) {
+    const json = window.localStorage.getItem(key)
+    if (json) {
+      let storageData: StorageData | null = null
+
+      try {
+        storageData = deCrypto(json)
+      }
+      catch {
+        // Prevent failure
+      }
+
+      if (storageData) {
+        const { value, expire } = storageData
+        if (expire === null || expire >= Date.now())
+          return value
+      }
+
+      remove(key)
+      return null
+    }
+  }
+
+  function remove(key: string) {
+    window.localStorage.removeItem(key)
+  }
+
+  function clear() {
+    window.localStorage.clear()
+  }
+
+  return {
+    set,
+    get,
+    remove,
+    clear,
+  }
+}
+
+export const ls = createLocalStorage()