539 lines
15 KiB
JavaScript
539 lines
15 KiB
JavaScript
const request = require('../../api/request.js');
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const uploadFile = require('../../api/upload.js');
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Page({
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data: {
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messages: [],
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inputText: '',
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scrollToId: '',
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userAvatar: '/static/user.png',
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serviceAvatar: '/static/contact.png',
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showGetUser: false,
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userInfo: {},
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appid: '',
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page: 1,
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page_size: 100,
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openid: '',
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total: 0,
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isAtBottom: true,
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loadingMore: false,
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showNewMessageTip: false,
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newMessageCount: 0,
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lastMessageId: '',
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hasWelcomeMessageSent: false,
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},
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onLoad(options) {
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const accountInfo = wx.getAccountInfoSync();
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this.setData({
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appid: accountInfo.miniProgram.appId,
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});
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if (wx.getStorageSync('user_info')) {
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this.setData({
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showGetUser: false,
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userInfo: wx.getStorageSync('user_info'),
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});
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this.getMessages().then(() => {
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this.sendWelcomeMessage();
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});
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this.startPolling();
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} else {
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this.silentLogin();
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}
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},
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getMessages() {
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const userInfo = wx.getStorageSync('user_info');
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const that = this;
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return request('app/messages', 'get', {
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app_id: that.data.appid,
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user_id: userInfo.openid,
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page: that.data.page,
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page_size: that.data.page_size,
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}).then(res => {
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const list = that.processMessages(res.list);
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const sortedList = that.sortMessagesByID(list);
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const updateData = {
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messages: sortedList,
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total: res.total
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};
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that.setData(updateData);
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if (that.data.isAtBottom && sortedList.length > 0) {
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const lastMessageId = sortedList[sortedList.length - 1].id;
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console.log('用户在底部，准备自动滚动到消息ID:', lastMessageId);
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setTimeout(() => {
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that.setData({
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scrollToId: lastMessageId
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});
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console.log('已设置scrollToId:', lastMessageId);
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}, 50);
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} else {
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console.log('用户不在底部或无消息，保持当前位置。isAtBottom:', that.data.isAtBottom, '消息数量:', sortedList.length);
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}
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return res;
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});
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},
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loadMoreAtTop() {
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if (this.data.loadingMore) return;
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const already = this.data.messages.length || 0;
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if (already >= this.data.total) return;
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const nextPage = this.data.page + 1;
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this.setData({ loadingMore: true });
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const userInfo = wx.getStorageSync('user_info');
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const that = this;
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const prevTopId = this.data.messages[0] ? this.data.messages[0].id : null;
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request('app/messages', 'get', {
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app_id: this.data.appid,
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user_id: userInfo.openid,
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page: nextPage,
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page_size: this.data.page_size,
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}).then(res => {
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const newList = that.processMessages(res.list);
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const combined = newList.concat(that.data.messages);
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const sortedCombined = that.sortMessagesByID(combined);
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that.setData({
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messages: sortedCombined,
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page: nextPage,
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total: res.total,
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}, () => {
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if (prevTopId) {
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that.setData({ scrollToId: prevTopId });
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}
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that.setData({ loadingMore: false });
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});
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}).catch(() => {
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that.setData({ loadingMore: false });
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});
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},
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processMessages(messageList) {
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const processedMessages = messageList.map((item, index) => {
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if (item.id && !item.id.toString().startsWith('m') && !item.id.toString().startsWith('u')) {
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item.id = 'm' + item.id;
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} else if (item.create_time) {
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item.id = 'm' + new Date(item.create_time).getTime();
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} else if (!item.id) {
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item.id = 'm' + (Date.now() + index);
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}
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if (typeof item.content === 'string') {
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try {
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item.content = {
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message: JSON.parse(item.content).message || JSON.parse(item.content).messages
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}
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} catch (e) {
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console.warn('消息内容解析失败:', item.content);
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item.content = { message: item.content };
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}
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}
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return item;
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});
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this.checkNewMessages(processedMessages);
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return processedMessages;
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},
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checkNewMessages(newMessages) {
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if (newMessages.length === 0) return;
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const currentMessages = this.data.messages;
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const currentLastMessageId = this.data.lastMessageId;
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const sortedNewMessages = this.sortMessagesByID(newMessages);
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const latestNewMessage = sortedNewMessages[sortedNewMessages.length - 1];
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if (!this.data.isAtBottom && currentMessages.length > 0) {
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const currentMessageIds = new Set(currentMessages.map(msg => msg.id));
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const realNewMessages = sortedNewMessages.filter(msg => !currentMessageIds.has(msg.id));
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if (realNewMessages.length > 0) {
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const currentCount = this.data.newMessageCount || 0;
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this.setData({
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showNewMessageTip: true,
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newMessageCount: currentCount + realNewMessages.length
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});
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}
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}
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if (latestNewMessage) {
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this.setData({
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lastMessageId: latestNewMessage.id
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});
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}
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},
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sortMessagesByID(messages) {
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return messages.sort((a, b) => {
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const getNumericId = (id) => {
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if (id.startsWith('u')) {
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return parseInt(id.replace('u', '')) || 0;
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} else if (id.startsWith('m')) {
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const numId = parseInt(id.replace('m', '')) || 0;
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if (numId < 1000000000000) {
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return numId + 1000000000;
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}
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return numId;
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}
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return 0;
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};
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const idA = getNumericId(a.id);
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const idB = getNumericId(b.id);
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return idA - idB;
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});
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},
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silentLogin() {
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const that = this;
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const accountInfo = wx.getAccountInfoSync();
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wx.login({
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success: function (res) {
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request('wechat/miniprogram/login', 'post', {
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"app_id": accountInfo.miniProgram.appId,
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"js_code": res.code
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}).then(resp => {
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wx.setStorageSync('user_info', resp);
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that.setData({
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showGetUser: false,
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userInfo: resp
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});
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request('app/user/create', 'post', {
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"app_id": accountInfo.miniProgram.appId,
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"user_avatar": resp.user_avatar || '/static/user.png',
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"user_id": resp.openid,
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"user_name": resp.user_name || '微信用户'
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}).then(resp => {
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that.getMessages().then(() => {
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that.sendWelcomeMessage();
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});
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that.startPolling();
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});
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}).catch(err => {
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console.error('静默登录失败:', err);
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that.setData({
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showGetUser: true
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});
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});
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},
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fail: function (err) {
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console.error('wx.login失败:', err);
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}
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});
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},
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startPolling() {
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if (this.poller) return;
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this.getMessages();
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this.poller = setInterval(() => {
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this.getMessages();
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}, 1000);
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},
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stopPolling() {
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if (this.poller) {
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clearInterval(this.poller);
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this.poller = null;
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}
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},
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onScroll(e) {
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const scrollTop = e.detail.scrollTop || 0;
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const last = this._lastScrollTop || 0;
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if (scrollTop < last) {
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if (this.data.isAtBottom) {
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console.log('用户向上滚动，设置isAtBottom为false');
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this.setData({ isAtBottom: false });
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}
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}
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if (scrollTop <= 2) {
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if (!this.data.loadingMore && this.data.messages.length < this.data.total) {
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this.loadMoreAtTop();
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}
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}
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this._lastScrollTop = scrollTop;
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},
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onScrollToLower() {
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console.log('用户滚动到底部，当前isAtBottom状态:', this.data.isAtBottom);
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if (!this.data.isAtBottom) {
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this.setData({
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isAtBottom: true,
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showNewMessageTip: false,
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newMessageCount: 0
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});
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console.log('已设置isAtBottom为true');
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this.startPolling();
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const lastId = this.data.messages[this.data.messages.length - 1] ? this.data.messages[this.data.messages.length - 1].id : '';
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if (lastId) {
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this.setData({ scrollToId: lastId });
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console.log('设置scrollToId到最新消息:', lastId);
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}
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} else {
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if (this.data.showNewMessageTip) {
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this.setData({
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showNewMessageTip: false,
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newMessageCount: 0
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});
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console.log('隐藏新消息提醒');
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}
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}
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},
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onReady() {
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const now = new Date();
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const timeStr = this.formatTime(now);
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this.setData({
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messages: [],
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scrollToId: 'm1'
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});
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},
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onInput(e) {
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this.setData({
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inputText: e.detail.value
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});
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},
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sendWelcomeMessage() {
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if (!this.data.userInfo || !this.data.userInfo.openid) {
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console.log('用户信息不存在，无法发送欢迎消息');
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return;
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}
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const welcomeKey = `welcome_sent_${this.data.userInfo.openid}`;
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const hasWelcomeSent = wx.getStorageSync(welcomeKey);
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if (hasWelcomeSent) {
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console.log('该用户的欢迎消息已发送过，跳过');
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this.setData({ hasWelcomeMessageSent: true });
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return;
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}
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const welcomeText = '你好';
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const now = new Date();
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const id = 'welcome_' + Date.now();
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const msg = {
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id,
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content: {
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message: welcomeText
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},
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"msg_type": 1,
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receiver_id: '',
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send_time: "刚刚",
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sender_id: this.data.userInfo.openid,
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sender_name: this.data.userInfo.user_name
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};
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// 添加新消息并重新排序
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const newMessages = this.data.messages.concat(msg);
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const sortedMessages = this.sortMessagesByID(newMessages);
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this.setData({
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messages: sortedMessages,
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hasWelcomeMessageSent: true
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});
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const accountInfo = wx.getAccountInfoSync();
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const userInfo = wx.getStorageSync('user_info');
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console.log('发送欢迎消息:', welcomeText);
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// 发送到服务器
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request('app/send_message', 'POST', {
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"app_id": accountInfo.miniProgram.appId,
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"content": JSON.stringify({
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message: welcomeText
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}),
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"from_user_id": userInfo.openid,
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"from_user_name": userInfo.user_name,
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"msg_type": 1
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}).then(() => {
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console.log('欢迎消息发送成功');
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wx.setStorageSync(welcomeKey, true);
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}).catch(err => {
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console.error('欢迎消息发送失败:', err);
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});
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setTimeout(() => {
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const latestMessage = sortedMessages[sortedMessages.length - 1];
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this.setData({
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scrollToId: latestMessage ? latestMessage.id : id
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});
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}, 50);
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},
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sendText() {
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const text = this.data.inputText && this.data.inputText.trim();
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if (!text) return;
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const now = new Date();
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const id = 'u' + Date.now();
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const msg = {
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id,
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content: {
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message: text
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},
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"msg_type": 1,
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receiver_id: '',
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send_time: "刚刚",
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sender_id: this.data.userInfo.openid,
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sender_name: this.data.userInfo.user_name
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};
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const newMessages = this.data.messages.concat(msg);
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const sortedMessages = this.sortMessagesByID(newMessages);
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this.setData({
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messages: sortedMessages,
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inputText: ''
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});
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const accountInfo = wx.getAccountInfoSync();
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const userInfo = wx.getStorageSync('user_info')
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request('app/send_message', 'POST', {
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"app_id": accountInfo.miniProgram.appId,
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"content": JSON.stringify({
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message: text
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}),
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"from_user_id": userInfo.openid,
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"from_user_name": userInfo.user_name,
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"msg_type": 1
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})
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setTimeout(() => {
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const latestMessage = sortedMessages[sortedMessages.length - 1];
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this.setData({
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scrollToId: latestMessage ? latestMessage.id : id
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});
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}, 50);
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},
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chooseImage() {
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const that = this;
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wx.chooseImage({
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count: 1,
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mediaType: ['image'],
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sizeType: ['compressed', 'original'],
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sourceType: ['album', 'camera'],
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success(res) {
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const tempFilePaths = res.tempFilePaths;
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console.log('选择的图片路径:', res);
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if (tempFilePaths && tempFilePaths.length) {
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const userInfo = wx.getStorageSync('user_info')
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const id = 'u' + Date.now();
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const msg = {
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id,
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msg_type: '2',
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receiver_id: '',
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content: {
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message: tempFilePaths[0]
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},
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sender_id: userInfo.openid,
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sender_name: userInfo.user_name,
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receiver_id: '',
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send_time: "刚刚",
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};
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const list = that.data.messages
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list.push(msg);
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that.setData({
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messages: list
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});
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setTimeout(() => {
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that.setData({
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scrollToId: id
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});
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}, 50);
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uploadFile(tempFilePaths[0]).then((res) => {
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const accountInfo = wx.getAccountInfoSync();
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request('app/send_message', 'POST', {
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"app_id": accountInfo.miniProgram.appId,
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"content": JSON.stringify({
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message: res
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}),
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"from_user_id": userInfo.openid,
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"from_user_name": userInfo.user_name,
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"msg_type": 2
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}).catch((err) => {
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wx.showToast({
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title: '图片发送失败',
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icon: 'none'
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});
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});
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}).catch((err) => {
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wx.showToast({
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title: '图片发送失败',
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icon: 'none'
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});
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});
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}
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}
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});
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},
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formatTime(date) {
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const y = date.getFullYear();
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const m = (date.getMonth() + 1).toString().padStart(2, '0');
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const d = date.getDate().toString().padStart(2, '0');
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const h = date.getHours().toString().padStart(2, '0');
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const min = date.getMinutes().toString().padStart(2, '0');
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return `${y}年${m}月${d}日 ${h}:${min}`;
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},
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previewImage(e) {
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const src = e.currentTarget.dataset.src;
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if (!src) return;
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wx.previewImage({
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urls: [src],
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current: src
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});
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},
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onShow() {
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if (wx.getStorageSync('user_info')) {
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this.getMessages();
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this.startPolling();
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}
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},
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onHide() {
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this.stopPolling();
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},
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onUnload() {
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this.stopPolling();
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},
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onPullDownRefresh() {
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if (wx.getStorageSync('user_info')) {
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this.getMessages().then(() => {
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wx.stopPullDownRefresh();
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}).catch(() => {
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wx.stopPullDownRefresh();
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});
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} else {
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wx.stopPullDownRefresh();
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}
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},
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scrollToBottom() {
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const messages = this.data.messages;
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if (messages.length > 0) {
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const sortedMessages = this.sortMessagesByID(messages);
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const latestMessage = sortedMessages[sortedMessages.length - 1];
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this.setData({
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scrollToId: latestMessage.id,
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showNewMessageTip: false,
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newMessageCount: 0,
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isAtBottom: true
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});
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setTimeout(() => {
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this.setData({
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scrollToId: ''
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});
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}, 100);
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}
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},
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onReachBottom() { },
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onShareAppMessage() { }
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}); |