chore: init project

packages/preference/src/cache.ts

@@ -0,0 +1,60 @@
+import type { Preference } from '@vben-core/typings';
+
+class PreferenceCache {
+  cachePrefix: string;
+  constructor(cachePrefix: string = 'vben-admin') {
+    this.cachePrefix = cachePrefix;
+  }
+
+  /**
+   * 从 localStorage 中获取偏好设置
+   * @returns  返回从 localStorage 中获取的偏好设置，如果没有获取到，则返回默认偏好设置。
+   */
+  get(defaultValue: Preference): Preference {
+    let cache = defaultValue;
+    try {
+      cache = JSON.parse(localStorage.getItem(this.getCacheKey()) || '');
+    } catch {
+      return defaultValue;
+    }
+    return cache;
+  }
+
+  /**
+   * 获取偏好设置的缓存键
+   */
+  getCacheKey(name: string = 'preference') {
+    const env = import.meta.env.DEV ? 'dev' : 'prod';
+    return `__${this.cachePrefix}-${name}-${env}__`;
+  }
+
+  /**
+   * 从 localStorage 中移除偏好设置
+   */
+  remove() {
+    localStorage.removeItem(this.getCacheKey());
+    localStorage.removeItem(this.getCacheKey('locale'));
+    localStorage.removeItem(this.getCacheKey('theme'));
+  }
+
+  /**
+   * 将当前偏好设置持久化到 localStorage
+   */
+  set(preference: Preference) {
+    localStorage.setItem(this.getCacheKey(), JSON.stringify(preference));
+    // 额外存储一份主题、语言
+    localStorage.setItem(this.getCacheKey('locale'), preference.locale);
+    localStorage.setItem(this.getCacheKey('theme'), preference.theme);
+  }
+
+  /**
+   * 设置偏好设置的缓存前缀
+   * @param prefix - 前缀
+   */
+  setCachePrefix(prefix: string) {
+    this.cachePrefix = prefix;
+  }
+}
+
+export type PreferenceCacheType = PreferenceCache;
+export { PreferenceCache };