281 lines
9.3 KiB
JavaScript
281 lines
9.3 KiB
JavaScript
/**
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* 聊天详情页 U24（重构：用 messageStore + message-bubble）
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*
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* 不变量（AGENTS.md）：
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* - 第 3 条：Mutual Match 后才能聊天——sendMessage 若后端返回 MATCH_REQUIRED，
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* UI 给出引导文案；不在客户端做硬阻断，由后端守门。
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* - 第 4 条：Block/Unmatch 后会话 canSendMessage=false，输入栏禁用并显示"已停用"。
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* - 第 6 条：单向活动意向不泄露——本页只展示已建立的 Mutual 会话消息。
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* - 第 7 条：普通工作人员不能查看私人聊天——本页仅服务用户端。
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* - 第 9 条：PostgreSQL 是 Source of Truth——本地仅缓存最近活跃会话消息，冷启动从服务端拉取。
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*/
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const { messageStore, appStore, blockUser } = require('../../stores');
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const { messageService } = require('../../services');
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const { to, ROUTE, DANGER_ACTION, BUSINESS_ERROR_CODE } = require('../../constants');
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/** 超过该间隔则显示时间分隔（5 分钟） */
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const TIME_GAP_MS = 5 * 60 * 1000;
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Page({
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data: {
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conversationId: '',
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otherDisplayName: '',
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otherUserId: '',
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otherAvatarUrl: '',
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canSend: true,
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messages: [],
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hasMore: true,
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loading: false,
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loadingMore: false,
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sending: false,
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inputText: '',
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scrollIntoView: '',
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statusBarHeight: 20,
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navBarHeight: 44,
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showDangerDialog: false,
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dangerAction: DANGER_ACTION.BLOCK,
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connectionState: 'disconnected',
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},
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onLoad(options) {
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const conversationId = options.id || '';
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if (!conversationId) {
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appStore.toast('会话不存在');
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wx.navigateBack();
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return;
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}
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// 注入状态栏高度供 ui-nav-bar 使用
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try {
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const info = (wx.getWindowInfo && wx.getWindowInfo()) || wx.getSystemInfoSync();
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this.setData({
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statusBarHeight: info.statusBarHeight || 20,
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navBarHeight: info.platform === 'android' ? 48 : 44,
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});
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} catch (e) { /* 使用默认值 */ }
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this.setData({ conversationId });
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// 绑定 messageStore.connectionState 到页面
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this._unsubConn = messageStore.bindToPage(this, {
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connectionState: 'connectionState',
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});
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// 订阅消息列表 / 分页 / loading 变化
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this._unsubList = messageStore.subscribe((state) => this._syncFromStore(state));
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// 注册实时消息监听：收到对方消息立即标记已读（会话已处于前台）
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this._unsubRealtime = messageStore.onMessage(conversationId, (msg) => {
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if (msg.bubbleType === 'other') {
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messageStore.markConversationRead(conversationId).catch(() => {});
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}
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});
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// 打开会话：拉取最近消息 + 清未读（AGENTS 第 9 条，DB 为准）
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messageStore.openConversation(conversationId).catch((err) => appStore.toastError(err));
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// 拉取会话元数据（displayName / canSend / targetUserId / 头像）
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this.loadConversationMeta();
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},
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onUnload() {
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this._unsubConn && this._unsubConn();
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this._unsubList && this._unsubList();
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this._unsubRealtime && this._unsubRealtime();
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if (this.data.conversationId) {
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// 关闭会话：activeConversationId 置空，后续收到对方消息将累计未读
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messageStore.closeConversation();
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}
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},
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/** 拉取会话元数据（canSend 以服务端为准） */
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async loadConversationMeta() {
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try {
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const conv = await messageService.getConversation(this.data.conversationId);
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if (conv) {
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this.setData({
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otherDisplayName: conv.targetDisplayName || conv.otherDisplayName || '用户',
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otherUserId: conv.targetUserId || '',
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otherAvatarUrl: conv.targetAvatarUrl || '',
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canSend: conv.canSendMessage !== false,
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});
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}
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} catch (err) {
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// 兜底：从 store 会话列表查找
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const local = messageStore.state.conversations.find(
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(c) => c.conversationId === this.data.conversationId,
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);
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if (local) {
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this.setData({
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otherDisplayName: local.targetDisplayName || '用户',
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otherUserId: local.targetUserId || '',
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otherAvatarUrl: local.targetAvatarUrl || '',
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canSend: local.canSendMessage !== false,
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});
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} else {
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appStore.toastError(err);
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}
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}
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},
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/** 把 store 状态同步到页面 */
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_syncFromStore(state) {
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const cid = this.data.conversationId;
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const rawList = state.messagesByConversation[cid] || [];
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const hasMore = state.hasMoreByConversation[cid] !== false;
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const loading = state.conversationsLoading;
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const messages = this._formatMessageList(rawList);
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const patch = { messages, hasMore };
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if (loading !== this.data.loading) patch.loading = loading;
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this.setData(patch);
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// 加载更早消息时，保持滚动位置（定位到加载前的第一条）
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if (this._loadingMore && this._preserveMsgId) {
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const idx = messages.findIndex((m) => m.messageId === this._preserveMsgId);
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if (idx >= 0) this.setData({ scrollIntoView: `msg-${idx}` });
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this._loadingMore = false;
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this._preserveMsgId = null;
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} else {
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this._scrollToLast(messages);
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}
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},
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/** 派生时间分隔 / 头像 / 是否显示头像 */
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_formatMessageList(list) {
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const otherAvatar = this.data.otherAvatarUrl;
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const result = [];
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let lastTs = 0;
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for (let i = 0; i < list.length; i++) {
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const m = list[i];
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const ts = m.sentAt || 0;
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const showTime = i === 0 || (ts && ts - lastTs > TIME_GAP_MS);
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result.push({
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...m,
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showTime,
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sentAtText: showTime ? this._formatTime(ts) : '',
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showAvatar: m.bubbleType === 'other',
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avatarUrl: m.bubbleType === 'other' ? otherAvatar : '',
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});
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lastTs = ts;
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}
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return result;
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},
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_formatTime(ts) {
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if (!ts) return '';
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const d = new Date(ts);
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const now = new Date();
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const hm = d.toLocaleTimeString('zh-CN', { hour: '2-digit', minute: '2-digit' });
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if (d.toDateString() === now.toDateString()) return hm;
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return `${d.getMonth() + 1}/${d.getDate()} ${hm}`;
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},
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_scrollToLast(list) {
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if (!list.length) return;
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const id = `msg-${list.length - 1}`;
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if (id !== this.data.scrollIntoView) {
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this.setData({ scrollIntoView: id });
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}
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},
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onBack() {
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const pages = getCurrentPages();
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if (pages.length > 1) {
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wx.navigateBack();
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} else {
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wx.switchTab({ url: ROUTE.TAB.MESSAGES });
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}
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},
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onInput(e) {
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this.setData({ inputText: e.detail.value });
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},
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async onSend() {
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const { inputText, conversationId, sending, canSend } = this.data;
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if (!canSend || !inputText.trim() || sending) return;
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this.setData({ sending: true, inputText: '' });
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try {
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await messageStore.sendMessage(conversationId, inputText.trim());
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} catch (err) {
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// MATCH_REQUIRED：双方互相喜欢后才能聊天（AGENTS 第 3 条，后端守门）
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if (err && err.code === BUSINESS_ERROR_CODE.MATCH_REQUIRED) {
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appStore.toast('双方互相喜欢后才能开始聊天');
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} else {
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appStore.toastError(err, '发送失败');
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}
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} finally {
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this.setData({ sending: false });
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}
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},
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/** 重发失败消息 */
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onRetrySend(e) {
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const messageId = e.currentTarget.dataset.msgId;
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if (!messageId) return;
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messageStore
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.retrySend(this.data.conversationId, messageId)
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.catch((err) => appStore.toastError(err, '重发失败'));
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},
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/** 滚动到顶部：加载更早消息（保持滚动位置） */
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async onScrollToUpper() {
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const { conversationId, hasMore, loadingMore } = this.data;
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if (!hasMore || loadingMore) return;
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const first = this.data.messages[0];
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this._loadingMore = true;
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this._preserveMsgId = first ? first.messageId : null;
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this.setData({ loadingMore: true });
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try {
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await messageStore.loadMoreMessages(conversationId);
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} catch (err) {
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appStore.toastError(err);
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this._loadingMore = false;
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this._preserveMsgId = null;
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} finally {
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this.setData({ loadingMore: false });
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}
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},
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/** 右上角更多：查看资料 / 举报 / 拉黑 */
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onMore() {
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const { otherUserId } = this.data;
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if (!otherUserId) {
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appStore.toast('暂无更多信息');
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return;
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}
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wx.showActionSheet({
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itemList: ['查看 Ta 的资料', '举报 Ta', '拉黑 Ta'],
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success: (res) => {
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if (res.tapIndex === 0) {
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wx.navigateTo({ url: to.detail(otherUserId) });
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} else if (res.tapIndex === 1) {
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wx.navigateTo({ url: to.report(otherUserId) });
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} else if (res.tapIndex === 2) {
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this.setData({ showDangerDialog: true, dangerAction: DANGER_ACTION.BLOCK });
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}
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},
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});
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},
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/** 危险动作确认（拉黑） */
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async onConfirmDanger(e) {
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const action = e.detail.action;
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const { otherUserId, conversationId } = this.data;
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this.setData({ showDangerDialog: false });
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if (action !== DANGER_ACTION.BLOCK) return;
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try {
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appStore.showLoading('处理中…');
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// 拉黑：触发 MatchStore + MessageStore 同步副作用（AGENTS 第 4 条即时停用）
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await blockUser(otherUserId, '用户主动拉黑');
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appStore.hideLoading();
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this.setData({ canSend: false });
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appStore.toastSuccess('已拉黑');
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} catch (err) {
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appStore.hideLoading();
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appStore.toastError(err);
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}
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},
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onCancelDanger() {
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this.setData({ showDangerDialog: false });
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},
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});
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