376 lines
7.9 KiB
JavaScript
376 lines
7.9 KiB
JavaScript
/**
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* 状态管理 - 使用发布-订阅模式
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*/
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// localStorage 键名
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const STORAGE_KEY = 'cwd_user_info';
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/**
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* 从 localStorage 读取用户信息
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* @returns {Object}
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*/
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function loadUserInfo() {
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try {
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const data = localStorage.getItem(STORAGE_KEY);
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if (data) {
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const parsed = JSON.parse(data);
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return {
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author: parsed.author || '',
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email: parsed.email || '',
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url: parsed.url || ''
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};
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}
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} catch (e) {
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console.error('读取用户信息失败:', e);
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}
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return { author: '', email: '', url: '' };
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}
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/**
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* 保存用户信息到 localStorage
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* @param {string} author - 昵称
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* @param {string} email - 邮箱
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* @param {string} url - 网址
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*/
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function saveUserInfo(author, email, url) {
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try {
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const data = { author, email, url };
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localStorage.setItem(STORAGE_KEY, JSON.stringify(data));
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} catch (e) {
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console.error('保存用户信息失败:', e);
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}
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}
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/**
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* 简单的 Store 类
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*/
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class Store {
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constructor(initialState) {
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this.state = { ...initialState };
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this.listeners = [];
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}
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/**
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* 获取当前状态
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* @returns {Object}
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*/
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getState() {
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return { ...this.state };
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}
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/**
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* 更新状态
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* @param {Object} updates - 要更新的属性
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*/
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setState(updates) {
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const prevState = { ...this.state };
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this.state = { ...this.state, ...updates };
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// 通知所有监听器
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this.listeners.forEach(listener => {
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listener(this.state, prevState);
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});
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}
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/**
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* 订阅状态变化
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* @param {Function} listener - 监听器函数
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* @returns {Function} - 取消订阅的函数
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*/
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subscribe(listener) {
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this.listeners.push(listener);
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// 返回取消订阅的函数
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return () => {
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this.listeners = this.listeners.filter(l => l !== listener);
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};
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}
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}
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/**
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* 创建评论状态管理 Store
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* @param {Object} config - 配置对象
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* @param {Function} fetchComments - 获取评论的函数
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* @param {Function} submitComment - 提交评论的函数
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* @returns {Object}
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*/
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export function createCommentStore(config, fetchComments, submitComment) {
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// 从 localStorage 加载用户信息
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const savedInfo = loadUserInfo();
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// 创建 store 实例
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const store = new Store({
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// 评论数据
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comments: [],
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loading: false,
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error: null,
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// 分页
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pagination: {
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page: 1,
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limit: config.pageSize || 20,
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total: 0,
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totalCount: 0
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},
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// 表单数据
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form: {
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author: savedInfo.author || '',
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email: savedInfo.email || '',
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url: savedInfo.url || '',
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content: ''
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},
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formErrors: {},
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submitting: false,
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// 回复状态
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replyingTo: null,
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replyContent: '',
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replyError: null
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});
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// 监听用户信息变化，自动保存到 localStorage
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store.subscribe((state) => {
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if (state.form.author || state.form.email || state.form.url) {
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saveUserInfo(state.form.author, state.form.email, state.form.url);
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}
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});
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/**
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* 加载评论列表
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* @param {number} page - 页码
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*/
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async function loadComments(page = 1) {
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store.setState({
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loading: true,
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error: null
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});
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try {
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const response = await fetchComments(page, store.getState().pagination.limit);
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console.log('[Store] loadComments response:', response);
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console.log('[Store] comments data:', response.data);
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store.setState({
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comments: response.data,
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pagination: {
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page: response.pagination.page,
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limit: response.pagination.limit,
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total: response.pagination.total,
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totalCount: response.pagination.totalCount
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},
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loading: false
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});
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} catch (e) {
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store.setState({
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error: e instanceof Error ? e.message : '加载评论失败',
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loading: false
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});
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}
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}
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/**
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* 提交评论
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*/
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async function submitNewComment() {
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const state = store.getState();
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const form = state.form;
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// 验证表单
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const { validateCommentForm } = await import('@/utils/validator.js');
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const validation = validateCommentForm(form);
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if (!validation.valid) {
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store.setState({
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formErrors: validation.errors
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});
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return false;
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}
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// 清空错误
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store.setState({
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formErrors: {},
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submitting: true,
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error: null
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});
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try {
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await submitComment({
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author: form.author,
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email: form.email,
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url: form.url,
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content: form.content
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});
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// 清空评论内容
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store.setState({
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form: { ...form, content: '' },
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submitting: false
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});
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// 重新加载评论
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await loadComments(state.pagination.page);
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return true;
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} catch (e) {
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store.setState({
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error: e instanceof Error ? e.message : '提交评论失败',
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submitting: false
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});
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return false;
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}
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}
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/**
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* 提交回复
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* @param {number} parentId - 父评论 ID
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*/
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async function submitReply(parentId) {
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const state = store.getState();
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// 验证回复内容
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if (!state.replyContent.trim()) {
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return false;
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}
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// 验证用户信息
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const { validateReplyUserInfo } = await import('@/utils/validator.js');
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const validation = validateReplyUserInfo(state.form);
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if (!validation.valid) {
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const errorMessages = Object.values(validation.errors).join('；');
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store.setState({
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replyError: errorMessages
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});
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return false;
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}
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store.setState({
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formErrors: {},
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submitting: true,
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replyError: null
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});
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try {
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await submitComment({
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author: state.form.author,
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email: state.form.email,
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url: state.form.url,
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content: state.replyContent,
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parentId
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});
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// 清空回复内容并关闭回复框
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store.setState({
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replyContent: '',
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replyingTo: null,
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submitting: false
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});
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// 重新加载评论
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await loadComments(state.pagination.page);
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return true;
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} catch (e) {
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store.setState({
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error: e instanceof Error ? e.message : '提交回复失败',
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submitting: false
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});
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return false;
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}
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}
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/**
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* 开始回复
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* @param {number} commentId - 评论 ID
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*/
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function startReply(commentId) {
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console.log('[Store] startReply called with commentId:', commentId);
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store.setState({
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replyingTo: commentId,
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replyContent: '',
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replyError: null
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});
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console.log('[Store] New state:', store.getState());
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}
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/**
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* 取消回复
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*/
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function cancelReply() {
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store.setState({
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replyingTo: null,
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replyContent: '',
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replyError: null
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});
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}
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/**
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* 更新表单字段
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* @param {string} field - 字段名
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* @param {string} value - 值
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*/
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function updateFormField(field, value) {
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const form = { ...store.getState().form };
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form[field] = value;
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store.setState({ form });
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}
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/**
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* 更新回复内容
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* @param {string} content - 回复内容
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*/
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function updateReplyContent(content) {
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store.setState({
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replyContent: content
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});
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}
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/**
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* 清除回复错误
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*/
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function clearReplyError() {
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store.setState({
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replyError: null
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});
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}
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/**
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* 清除错误
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*/
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function clearError() {
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store.setState({
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error: null
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});
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}
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/**
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* 切换页码
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* @param {number} page - 页码
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*/
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function goToPage(page) {
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const totalPages = store.getState().pagination.total;
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if (page >= 1 && page <= totalPages) {
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loadComments(page);
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}
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}
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return {
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// Store 实例
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store,
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// 计算属性方法
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getTotalPages: () => {
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const state = store.getState();
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return state.pagination.total;
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},
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// 操作方法
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loadComments,
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submitNewComment,
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submitReply,
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startReply,
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cancelReply,
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updateFormField,
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updateReplyContent,
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clearReplyError,
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clearError,
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goToPage
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};
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}
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