128 lines
3.8 KiB
JavaScript
128 lines
3.8 KiB
JavaScript
/**
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* HoloLake Bulletin 数据持久化模块
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* storage.js - localStorage 封装 + 用户状态管理
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* 模块 ID: BC-M22-002-AW
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*/
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window.HoloLake = window.HoloLake || {};
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// ========== Storage 工具对象（带前缀） ==========
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HoloLake.Storage = {
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prefix: 'hololake_bulletin_',
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// 保存数据
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save: function(key, value) {
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try {
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const serialized = JSON.stringify(value);
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localStorage.setItem(this.prefix + key, serialized);
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console.log(`[Storage] 已保存: ${key} =`, value);
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} catch (e) {
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console.error('[Storage] 保存失败:', e);
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}
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},
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// 读取数据
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load: function(key, defaultValue = null) {
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try {
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const serialized = localStorage.getItem(this.prefix + key);
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if (serialized === null) {
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console.log(`[Storage] 无数据: ${key}，返回默认值`);
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return defaultValue;
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}
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const value = JSON.parse(serialized);
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console.log(`[Storage] 已加载: ${key} =`, value);
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return value;
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} catch (e) {
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console.error('[Storage] 读取失败:', e);
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return defaultValue;
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}
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},
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// 删除指定键
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remove: function(key) {
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try {
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localStorage.removeItem(this.prefix + key);
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console.log(`[Storage] 已删除: ${key}`);
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} catch (e) {
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console.error('[Storage] 删除失败:', e);
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}
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},
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// 清空所有带前缀的数据
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clear: function() {
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try {
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const keysToRemove = [];
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for (let i = 0; i < localStorage.length; i++) {
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const key = localStorage.key(i);
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if (key.startsWith(this.prefix)) {
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keysToRemove.push(key);
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}
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}
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keysToRemove.forEach(key => localStorage.removeItem(key));
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console.log('[Storage] 已清空所有公告栏数据');
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} catch (e) {
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console.error('[Storage] 清空失败:', e);
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}
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}
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};
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// ========== 用户状态管理 ==========
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HoloLake.UserState = {
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// 已读公告列表
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getReadBulletins: function() {
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return HoloLake.Storage.load('read_bulletins', []);
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},
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markAsRead: function(bulletinId) {
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const readList = this.getReadBulletins();
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if (!readList.includes(bulletinId)) {
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readList.push(bulletinId);
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HoloLake.Storage.save('read_bulletins', readList);
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}
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return readList;
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},
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// 订阅状态
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isSubscribed: function() {
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return HoloLake.Storage.load('is_subscribed', false);
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},
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toggleSubscribe: function() {
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const current = this.isSubscribed();
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const newState = !current;
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HoloLake.Storage.save('is_subscribed', newState);
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return newState;
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},
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// 当前频道
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getActiveChannel: function() {
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return HoloLake.Storage.load('active_channel', 'all');
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},
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setActiveChannel: function(channelId) {
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HoloLake.Storage.save('active_channel', channelId);
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},
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// 上次访问时间
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getLastVisit: function() {
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return HoloLake.Storage.load('last_visit', null);
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},
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updateLastVisit: function() {
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const now = new Date().toISOString();
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HoloLake.Storage.save('last_visit', now);
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return now;
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},
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// 重置所有状态（测试用）
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resetAll: function() {
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HoloLake.Storage.remove('read_bulletins');
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HoloLake.Storage.remove('is_subscribed');
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HoloLake.Storage.remove('active_channel');
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HoloLake.Storage.remove('last_visit');
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console.log('[UserState] 已重置所有状态');
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}
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};
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// 初始化时记录访问时间（可选，页面加载时由 script.js 调用）
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console.log('✅ storage.js 已加载，HoloLake.Storage 和 HoloLake.UserState 已就绪'); |