删除 Kbone 小程序开发技能相关文档，优化项目结构以提升可维护性。
This commit is contained in:
乘风
909
miniprogram/pages/read/read.js
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909
miniprogram/pages/read/read.js
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/**
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* Soul创业派对 - 阅读页
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* 开发: 卡若
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* 技术支持: 存客宝
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*/
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const app = getApp()
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Page({
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data: {
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// 系统信息
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statusBarHeight: 44,
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navBarHeight: 88,
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// 章节信息
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sectionId: '',
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section: null,
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partTitle: '',
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chapterTitle: '',
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// 内容
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content: '',
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previewContent: '',
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contentParagraphs: [],
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previewParagraphs: [],
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loading: true,
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// 用户状态
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isLoggedIn: false,
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hasFullBook: false,
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canAccess: false,
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purchasedCount: 0,
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// 阅读进度
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readingProgress: 0,
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showPaywall: false,
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// 上一篇/下一篇
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prevSection: null,
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nextSection: null,
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// 价格
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sectionPrice: 1,
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fullBookPrice: 9.9,
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totalSections: 62,
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// 弹窗
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showShareModal: false,
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showLoginModal: false,
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showPosterModal: false,
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isPaying: false,
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isGeneratingPoster: false,
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// 免费章节
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freeIds: ['preface', 'epilogue', '1.1', 'appendix-1', 'appendix-2', 'appendix-3']
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},
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onLoad(options) {
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const { id, ref } = options
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this.setData({
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statusBarHeight: app.globalData.statusBarHeight,
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navBarHeight: app.globalData.navBarHeight,
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sectionId: id
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})
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// 处理推荐码绑定
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if (ref) {
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console.log('[Read] 检测到推荐码:', ref)
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wx.setStorageSync('referral_code', ref)
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app.handleReferralCode({ query: { ref } })
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}
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// 加载免费章节配置
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this.loadFreeChaptersConfig()
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this.initSection(id)
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},
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// 从后端加载免费章节配置
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async loadFreeChaptersConfig() {
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try {
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const res = await app.request('/api/db/config')
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if (res.success && res.freeChapters) {
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this.setData({ freeIds: res.freeChapters })
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console.log('[Read] 加载免费章节配置:', res.freeChapters)
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}
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} catch (e) {
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console.log('[Read] 使用默认免费章节配置')
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}
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},
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onPageScroll(e) {
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// 计算阅读进度
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const query = wx.createSelectorQuery()
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query.select('.page').boundingClientRect()
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query.exec((res) => {
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if (res[0]) {
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const scrollTop = e.scrollTop
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const pageHeight = res[0].height - this.data.statusBarHeight - 200
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const progress = pageHeight > 0 ? Math.min((scrollTop / pageHeight) * 100, 100) : 0
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this.setData({ readingProgress: progress })
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}
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})
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},
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// 初始化章节
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async initSection(id) {
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this.setData({ loading: true })
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try {
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// 模拟获取章节数据
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const section = this.getSectionInfo(id)
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const { isLoggedIn, hasFullBook, purchasedSections } = app.globalData
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const isFree = this.data.freeIds.includes(id)
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const isPurchased = hasFullBook || (purchasedSections && purchasedSections.includes(id))
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const canAccess = isFree || isPurchased
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const purchasedCount = purchasedSections?.length || 0
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this.setData({
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section,
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isLoggedIn,
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hasFullBook,
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canAccess,
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purchasedCount,
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showPaywall: !canAccess
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})
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// 加载内容
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await this.loadContent(id)
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// 获取上一篇/下一篇
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this.loadNavigation(id)
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} catch (e) {
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console.error('初始化章节失败:', e)
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wx.showToast({ title: '加载失败', icon: 'none' })
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} finally {
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this.setData({ loading: false })
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}
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},
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// 获取章节信息
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getSectionInfo(id) {
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// 特殊章节
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if (id === 'preface') {
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return { id: 'preface', title: '为什么我每天早上6点在Soul开播?', isFree: true, price: 0 }
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}
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if (id === 'epilogue') {
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return { id: 'epilogue', title: '这本书的真实目的', isFree: true, price: 0 }
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}
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if (id.startsWith('appendix')) {
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const appendixTitles = {
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'appendix-1': 'Soul派对房精选对话',
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'appendix-2': '创业者自检清单',
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'appendix-3': '本书提到的工具和资源'
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}
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return { id, title: appendixTitles[id] || '附录', isFree: true, price: 0 }
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}
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// 普通章节
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return {
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id: id,
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title: this.getSectionTitle(id),
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isFree: id === '1.1',
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price: 1
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}
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},
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// 获取章节标题
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getSectionTitle(id) {
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const titles = {
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'1.1': '荷包：电动车出租的被动收入模式',
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'1.2': '老墨:资源整合高手的社交方法',
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'1.3': '笑声背后的MBTI',
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'1.4': '人性的三角结构：利益、情感、价值观',
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'1.5': '沟通差的问题：为什么你说的别人听不懂',
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'2.1': '相亲故事:你以为找的是人,实际是在找模式',
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'2.2': '找工作迷茫者:为什么简历解决不了人生',
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'2.3': '撸运费险:小钱困住大脑的真实心理',
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'2.4': '游戏上瘾的年轻人:不是游戏吸引他,是生活没吸引力',
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'2.5': '健康焦虑(我的糖尿病经历):疾病是人生的第一次清醒',
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'3.1': '3000万流水如何跑出来(退税模式解析)',
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'8.1': '流量杠杆:抖音、Soul、飞书',
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'9.14': '大健康私域：一个月150万的70后'
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}
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return titles[id] || `章节 ${id}`
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},
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// 加载内容 - 三级降级方案：API → 本地缓存 → 备用API
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async loadContent(id) {
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const cacheKey = `chapter_${id}`
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// 1. 优先从API获取
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try {
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const res = await this.fetchChapterWithTimeout(id, 5000)
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if (res && res.content) {
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this.setChapterContent(res)
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// 成功后缓存到本地
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wx.setStorageSync(cacheKey, res)
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console.log('[Read] 从API加载成功:', id)
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return
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}
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} catch (e) {
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console.warn('[Read] API加载失败，尝试本地缓存:', e.message)
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}
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// 2. API失败，尝试从本地缓存读取
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try {
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const cached = wx.getStorageSync(cacheKey)
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if (cached && cached.content) {
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this.setChapterContent(cached)
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console.log('[Read] 从本地缓存加载成功:', id)
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// 后台静默刷新
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this.silentRefresh(id)
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return
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}
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} catch (e) {
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console.warn('[Read] 本地缓存读取失败')
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}
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// 3. 都失败，显示加载中并持续重试
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this.setData({
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contentParagraphs: ['章节内容加载中...', '正在尝试连接服务器，请稍候...'],
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previewParagraphs: ['章节内容加载中...']
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})
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// 延迟重试（最多3次）
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this.retryLoadContent(id, 3)
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},
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// 带超时的章节请求
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fetchChapterWithTimeout(id, timeout = 5000) {
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return new Promise((resolve, reject) => {
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const timer = setTimeout(() => {
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reject(new Error('请求超时'))
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}, timeout)
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app.request(`/api/book/chapter/${id}`)
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.then(res => {
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clearTimeout(timer)
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resolve(res)
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})
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.catch(err => {
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clearTimeout(timer)
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reject(err)
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})
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})
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},
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// 设置章节内容
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setChapterContent(res) {
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const lines = res.content.split('\n').filter(line => line.trim())
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const previewCount = Math.ceil(lines.length * 0.2)
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this.setData({
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content: res.content,
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previewContent: lines.slice(0, previewCount).join('\n'),
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contentParagraphs: lines,
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previewParagraphs: lines.slice(0, previewCount),
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partTitle: res.partTitle || '',
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chapterTitle: res.chapterTitle || ''
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})
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},
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// 静默刷新（后台更新缓存）
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async silentRefresh(id) {
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try {
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const res = await this.fetchChapterWithTimeout(id, 10000)
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if (res && res.content) {
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wx.setStorageSync(`chapter_${id}`, res)
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console.log('[Read] 后台缓存更新成功:', id)
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}
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} catch (e) {
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// 静默失败不处理
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}
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},
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// 重试加载
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retryLoadContent(id, maxRetries, currentRetry = 0) {
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if (currentRetry >= maxRetries) {
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this.setData({
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contentParagraphs: ['内容加载失败', '请检查网络连接后下拉刷新重试'],
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previewParagraphs: ['内容加载失败']
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})
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return
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}
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setTimeout(async () => {
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try {
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const res = await this.fetchChapterWithTimeout(id, 8000)
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if (res && res.content) {
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this.setChapterContent(res)
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wx.setStorageSync(`chapter_${id}`, res)
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console.log('[Read] 重试成功:', id, '第', currentRetry + 1, '次')
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return
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}
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} catch (e) {
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console.warn('[Read] 重试失败，继续重试:', currentRetry + 1)
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}
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this.retryLoadContent(id, maxRetries, currentRetry + 1)
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}, 2000 * (currentRetry + 1))
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},
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// 加载导航
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loadNavigation(id) {
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const sectionOrder = [
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'preface', '1.1', '1.2', '1.3', '1.4', '1.5',
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'2.1', '2.2', '2.3', '2.4', '2.5',
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'3.1', '3.2', '3.3', '3.4',
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'4.1', '4.2', '4.3', '4.4', '4.5',
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'5.1', '5.2', '5.3', '5.4', '5.5',
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'6.1', '6.2', '6.3', '6.4',
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'7.1', '7.2', '7.3', '7.4', '7.5',
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'8.1', '8.2', '8.3', '8.4', '8.5', '8.6',
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'9.1', '9.2', '9.3', '9.4', '9.5', '9.6', '9.7', '9.8', '9.9', '9.10', '9.11', '9.12', '9.13', '9.14',
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'10.1', '10.2', '10.3', '10.4',
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'11.1', '11.2', '11.3', '11.4', '11.5',
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'epilogue'
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]
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const currentIndex = sectionOrder.indexOf(id)
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const prevId = currentIndex > 0 ? sectionOrder[currentIndex - 1] : null
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const nextId = currentIndex < sectionOrder.length - 1 ? sectionOrder[currentIndex + 1] : null
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this.setData({
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prevSection: prevId ? { id: prevId, title: this.getSectionTitle(prevId) } : null,
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nextSection: nextId ? { id: nextId, title: this.getSectionTitle(nextId) } : null
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})
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},
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// 返回
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goBack() {
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wx.navigateBack({
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fail: () => wx.switchTab({ url: '/pages/chapters/chapters' })
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})
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},
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// 分享弹窗
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showShare() {
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this.setData({ showShareModal: true })
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},
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closeShareModal() {
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this.setData({ showShareModal: false })
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},
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// 复制链接
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copyLink() {
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const userInfo = app.globalData.userInfo
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const referralCode = userInfo?.referralCode || ''
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const shareUrl = `https://soul.quwanzhi.com/read/${this.data.sectionId}${referralCode ? '?ref=' + referralCode : ''}`
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wx.setClipboardData({
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data: shareUrl,
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success: () => {
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wx.showToast({ title: '链接已复制', icon: 'success' })
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this.setData({ showShareModal: false })
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}
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})
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},
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// 复制分享文案（朋友圈风格）
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copyShareText() {
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const { section } = this.data
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const shareText = `🔥 刚看完这篇《${section?.title || 'Soul创业派对'}》，太上头了！
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62个真实商业案例，每个都是从0到1的实战经验。私域运营、资源整合、商业变现，干货满满。
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推荐给正在创业或想创业的朋友，搜"Soul创业派对"小程序就能看！
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#创业派对 #私域运营 #商业案例`
|
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wx.setClipboardData({
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data: shareText,
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success: () => {
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wx.showToast({ title: '文案已复制', icon: 'success' })
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||||
}
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||||
})
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},
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// 分享到微信 - 自动带分享人ID
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onShareAppMessage() {
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const { section, sectionId } = this.data
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const userInfo = app.globalData.userInfo
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const referralCode = userInfo?.referralCode || wx.getStorageSync('referralCode') || ''
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// 分享标题优化
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const shareTitle = section?.title
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? `📚 ${section.title.length > 20 ? section.title.slice(0, 20) + '...' : section.title}`
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: '📚 Soul创业派对 - 真实商业故事'
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return {
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title: shareTitle,
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path: `/pages/read/read?id=${sectionId}${referralCode ? '&ref=' + referralCode : ''}`,
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imageUrl: '/assets/share-cover.png' // 可配置分享封面图
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}
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},
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// 分享到朋友圈
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onShareTimeline() {
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const { section, sectionId } = this.data
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const userInfo = app.globalData.userInfo
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||||
const referralCode = userInfo?.referralCode || ''
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||||
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return {
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title: `${section?.title || 'Soul创业派对'} - 来自派对房的真实故事`,
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||||
query: `id=${sectionId}${referralCode ? '&ref=' + referralCode : ''}`
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||||
}
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||||
},
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||||
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||||
// 显示登录弹窗
|
||||
showLoginModal() {
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||||
this.setData({ showLoginModal: true })
|
||||
},
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||||
|
||||
closeLoginModal() {
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||||
this.setData({ showLoginModal: false })
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||||
},
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||||
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||||
// 微信登录
|
||||
async handleWechatLogin() {
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||||
try {
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||||
const result = await app.login()
|
||||
if (result) {
|
||||
this.setData({ showLoginModal: false })
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||||
this.initSection(this.data.sectionId)
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||||
wx.showToast({ title: '登录成功', icon: 'success' })
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||||
}
|
||||
} catch (e) {
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||||
wx.showToast({ title: '登录失败', icon: 'none' })
|
||||
}
|
||||
},
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||||
|
||||
// 手机号登录
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||||
async handlePhoneLogin(e) {
|
||||
if (!e.detail.code) {
|
||||
return this.handleWechatLogin()
|
||||
}
|
||||
|
||||
try {
|
||||
const result = await app.loginWithPhone(e.detail.code)
|
||||
if (result) {
|
||||
this.setData({ showLoginModal: false })
|
||||
this.initSection(this.data.sectionId)
|
||||
wx.showToast({ title: '登录成功', icon: 'success' })
|
||||
}
|
||||
} catch (e) {
|
||||
wx.showToast({ title: '登录失败', icon: 'none' })
|
||||
}
|
||||
},
|
||||
|
||||
// 购买章节 - 直接调起支付
|
||||
async handlePurchaseSection() {
|
||||
console.log('[Pay] 点击购买章节按钮')
|
||||
wx.showLoading({ title: '处理中...', mask: true })
|
||||
|
||||
if (!this.data.isLoggedIn) {
|
||||
wx.hideLoading()
|
||||
console.log('[Pay] 用户未登录，显示登录弹窗')
|
||||
this.setData({ showLoginModal: true })
|
||||
return
|
||||
}
|
||||
|
||||
const price = this.data.section?.price || 1
|
||||
console.log('[Pay] 开始支付流程:', { sectionId: this.data.sectionId, price })
|
||||
wx.hideLoading()
|
||||
await this.processPayment('section', this.data.sectionId, price)
|
||||
},
|
||||
|
||||
// 购买全书 - 直接调起支付
|
||||
async handlePurchaseFullBook() {
|
||||
console.log('[Pay] 点击购买全书按钮')
|
||||
wx.showLoading({ title: '处理中...', mask: true })
|
||||
|
||||
if (!this.data.isLoggedIn) {
|
||||
wx.hideLoading()
|
||||
console.log('[Pay] 用户未登录，显示登录弹窗')
|
||||
this.setData({ showLoginModal: true })
|
||||
return
|
||||
}
|
||||
|
||||
console.log('[Pay] 开始支付流程: 全书', { price: this.data.fullBookPrice })
|
||||
wx.hideLoading()
|
||||
await this.processPayment('fullbook', null, this.data.fullBookPrice)
|
||||
},
|
||||
|
||||
// 处理支付 - 调用真实微信支付接口
|
||||
async processPayment(type, sectionId, amount) {
|
||||
console.log('[Pay] processPayment开始:', { type, sectionId, amount })
|
||||
|
||||
// 检查金额是否有效
|
||||
if (!amount || amount <= 0) {
|
||||
console.error('[Pay] 金额无效:', amount)
|
||||
wx.showToast({ title: '价格信息错误', icon: 'none' })
|
||||
return
|
||||
}
|
||||
|
||||
// 检查是否已购买（避免重复购买）
|
||||
if (type === 'section' && sectionId) {
|
||||
const purchasedSections = app.globalData.purchasedSections || []
|
||||
if (purchasedSections.includes(sectionId)) {
|
||||
wx.showToast({ title: '已购买过此章节', icon: 'none' })
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
if (type === 'fullbook' && app.globalData.hasFullBook) {
|
||||
wx.showToast({ title: '已购买全书', icon: 'none' })
|
||||
return
|
||||
}
|
||||
|
||||
this.setData({ isPaying: true })
|
||||
wx.showLoading({ title: '正在发起支付...', mask: true })
|
||||
|
||||
try {
|
||||
// 1. 先获取openId (支付必需)
|
||||
let openId = app.globalData.openId || wx.getStorageSync('openId')
|
||||
|
||||
if (!openId) {
|
||||
console.log('[Pay] 需要先获取openId，尝试静默获取')
|
||||
wx.showLoading({ title: '获取支付凭证...', mask: true })
|
||||
openId = await app.getOpenId()
|
||||
|
||||
if (!openId) {
|
||||
// openId获取失败，但已登录用户可以使用用户ID替代
|
||||
if (app.globalData.isLoggedIn && app.globalData.userInfo?.id) {
|
||||
console.log('[Pay] 使用用户ID作为替代')
|
||||
openId = app.globalData.userInfo.id
|
||||
} else {
|
||||
wx.hideLoading()
|
||||
wx.showModal({
|
||||
title: '提示',
|
||||
content: '需要登录后才能支付，请先登录',
|
||||
showCancel: false
|
||||
})
|
||||
this.setData({ showLoginModal: true, isPaying: false })
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
console.log('[Pay] 开始创建订单:', { type, sectionId, amount, openId: openId.slice(0, 10) + '...' })
|
||||
wx.showLoading({ title: '创建订单中...', mask: true })
|
||||
|
||||
// 2. 调用后端创建预支付订单
|
||||
let paymentData = null
|
||||
|
||||
try {
|
||||
// 获取章节完整名称用于支付描述
|
||||
const sectionTitle = this.data.section?.title || sectionId
|
||||
const description = type === 'fullbook'
|
||||
? '《一场Soul的创业实验》全书'
|
||||
: `章节${sectionId}-${sectionTitle.length > 20 ? sectionTitle.slice(0, 20) + '...' : sectionTitle}`
|
||||
|
||||
const res = await app.request('/api/miniprogram/pay', {
|
||||
method: 'POST',
|
||||
data: {
|
||||
openId,
|
||||
productType: type,
|
||||
productId: sectionId,
|
||||
amount,
|
||||
description,
|
||||
userId: app.globalData.userInfo?.id || ''
|
||||
}
|
||||
})
|
||||
|
||||
console.log('[Pay] 创建订单响应:', res)
|
||||
|
||||
if (res.success && res.data?.payParams) {
|
||||
paymentData = res.data.payParams
|
||||
console.log('[Pay] 获取支付参数成功:', paymentData)
|
||||
} else {
|
||||
throw new Error(res.error || res.message || '创建订单失败')
|
||||
}
|
||||
} catch (apiError) {
|
||||
console.error('[Pay] API创建订单失败:', apiError)
|
||||
wx.hideLoading()
|
||||
// 支付接口失败时，显示客服联系方式
|
||||
wx.showModal({
|
||||
title: '支付通道维护中',
|
||||
content: '微信支付正在审核中，请添加客服微信（28533368）手动购买，感谢理解！',
|
||||
confirmText: '复制微信号',
|
||||
cancelText: '稍后再说',
|
||||
success: (res) => {
|
||||
if (res.confirm) {
|
||||
wx.setClipboardData({
|
||||
data: '28533368',
|
||||
success: () => {
|
||||
wx.showToast({ title: '微信号已复制', icon: 'success' })
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
})
|
||||
this.setData({ isPaying: false })
|
||||
return
|
||||
}
|
||||
|
||||
// 3. 调用微信支付
|
||||
wx.hideLoading()
|
||||
console.log('[Pay] 调起微信支付, paymentData:', paymentData)
|
||||
|
||||
try {
|
||||
await this.callWechatPay(paymentData)
|
||||
|
||||
// 4. 支付成功，更新本地数据
|
||||
console.log('[Pay] 微信支付成功!')
|
||||
this.mockPaymentSuccess(type, sectionId)
|
||||
wx.showToast({ title: '购买成功', icon: 'success' })
|
||||
|
||||
// 5. 刷新页面
|
||||
this.initSection(this.data.sectionId)
|
||||
} catch (payErr) {
|
||||
console.error('[Pay] 微信支付调起失败:', payErr)
|
||||
if (payErr.errMsg && payErr.errMsg.includes('cancel')) {
|
||||
wx.showToast({ title: '已取消支付', icon: 'none' })
|
||||
} else if (payErr.errMsg && payErr.errMsg.includes('requestPayment:fail')) {
|
||||
// 支付失败，可能是参数错误或权限问题
|
||||
wx.showModal({
|
||||
title: '支付失败',
|
||||
content: '微信支付暂不可用，请添加客服微信（28533368）手动购买',
|
||||
confirmText: '复制微信号',
|
||||
cancelText: '取消',
|
||||
success: (res) => {
|
||||
if (res.confirm) {
|
||||
wx.setClipboardData({
|
||||
data: '28533368',
|
||||
success: () => wx.showToast({ title: '微信号已复制', icon: 'success' })
|
||||
})
|
||||
}
|
||||
}
|
||||
})
|
||||
} else {
|
||||
wx.showToast({ title: payErr.errMsg || '支付失败', icon: 'none' })
|
||||
}
|
||||
}
|
||||
|
||||
} catch (e) {
|
||||
console.error('[Pay] 支付流程异常:', e)
|
||||
wx.hideLoading()
|
||||
wx.showToast({ title: '支付出错，请重试', icon: 'none' })
|
||||
} finally {
|
||||
this.setData({ isPaying: false })
|
||||
}
|
||||
},
|
||||
|
||||
// 模拟支付成功
|
||||
mockPaymentSuccess(type, sectionId) {
|
||||
if (type === 'fullbook') {
|
||||
app.globalData.hasFullBook = true
|
||||
const userInfo = app.globalData.userInfo || {}
|
||||
userInfo.hasFullBook = true
|
||||
app.globalData.userInfo = userInfo
|
||||
wx.setStorageSync('userInfo', userInfo)
|
||||
} else if (sectionId) {
|
||||
const purchasedSections = app.globalData.purchasedSections || []
|
||||
if (!purchasedSections.includes(sectionId)) {
|
||||
purchasedSections.push(sectionId)
|
||||
app.globalData.purchasedSections = purchasedSections
|
||||
|
||||
const userInfo = app.globalData.userInfo || {}
|
||||
userInfo.purchasedSections = purchasedSections
|
||||
app.globalData.userInfo = userInfo
|
||||
wx.setStorageSync('userInfo', userInfo)
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
// 调用微信支付
|
||||
callWechatPay(paymentData) {
|
||||
return new Promise((resolve, reject) => {
|
||||
wx.requestPayment({
|
||||
timeStamp: paymentData.timeStamp,
|
||||
nonceStr: paymentData.nonceStr,
|
||||
package: paymentData.package,
|
||||
signType: paymentData.signType || 'MD5',
|
||||
paySign: paymentData.paySign,
|
||||
success: resolve,
|
||||
fail: reject
|
||||
})
|
||||
})
|
||||
},
|
||||
|
||||
// 跳转到上一篇
|
||||
goToPrev() {
|
||||
if (this.data.prevSection) {
|
||||
wx.redirectTo({ url: `/pages/read/read?id=${this.data.prevSection.id}` })
|
||||
}
|
||||
},
|
||||
|
||||
// 跳转到下一篇
|
||||
goToNext() {
|
||||
if (this.data.nextSection) {
|
||||
wx.redirectTo({ url: `/pages/read/read?id=${this.data.nextSection.id}` })
|
||||
}
|
||||
},
|
||||
|
||||
// 跳转到推广中心
|
||||
goToReferral() {
|
||||
wx.navigateTo({ url: '/pages/referral/referral' })
|
||||
},
|
||||
|
||||
// 生成海报
|
||||
async generatePoster() {
|
||||
wx.showLoading({ title: '生成中...' })
|
||||
this.setData({ showPosterModal: true, isGeneratingPoster: true })
|
||||
|
||||
try {
|
||||
const ctx = wx.createCanvasContext('posterCanvas', this)
|
||||
const { section, contentParagraphs, sectionId } = this.data
|
||||
const userInfo = app.globalData.userInfo
|
||||
const userId = userInfo?.id || ''
|
||||
|
||||
// 获取小程序码（带推荐人参数）
|
||||
let qrcodeImage = null
|
||||
try {
|
||||
const scene = userId ? `id=${sectionId}&ref=${userId.slice(0,10)}` : `id=${sectionId}`
|
||||
const qrRes = await app.request('/api/miniprogram/qrcode', {
|
||||
method: 'POST',
|
||||
data: { scene, page: 'pages/read/read', width: 280 }
|
||||
})
|
||||
if (qrRes.success && qrRes.image) {
|
||||
qrcodeImage = qrRes.image
|
||||
}
|
||||
} catch (e) {
|
||||
console.log('[Poster] 获取小程序码失败，使用占位符')
|
||||
}
|
||||
|
||||
// 海报尺寸 300x450
|
||||
const width = 300
|
||||
const height = 450
|
||||
|
||||
// 背景渐变
|
||||
const grd = ctx.createLinearGradient(0, 0, 0, height)
|
||||
grd.addColorStop(0, '#1a1a2e')
|
||||
grd.addColorStop(1, '#16213e')
|
||||
ctx.setFillStyle(grd)
|
||||
ctx.fillRect(0, 0, width, height)
|
||||
|
||||
// 顶部装饰条
|
||||
ctx.setFillStyle('#00CED1')
|
||||
ctx.fillRect(0, 0, width, 4)
|
||||
|
||||
// 标题区域
|
||||
ctx.setFillStyle('#ffffff')
|
||||
ctx.setFontSize(14)
|
||||
ctx.fillText('📚 Soul创业派对', 20, 35)
|
||||
|
||||
// 章节标题
|
||||
ctx.setFontSize(18)
|
||||
ctx.setFillStyle('#ffffff')
|
||||
const title = section?.title || '精彩内容'
|
||||
const titleLines = this.wrapText(ctx, title, width - 40, 18)
|
||||
let y = 70
|
||||
titleLines.forEach(line => {
|
||||
ctx.fillText(line, 20, y)
|
||||
y += 26
|
||||
})
|
||||
|
||||
// 分隔线
|
||||
ctx.setStrokeStyle('rgba(255,255,255,0.1)')
|
||||
ctx.beginPath()
|
||||
ctx.moveTo(20, y + 10)
|
||||
ctx.lineTo(width - 20, y + 10)
|
||||
ctx.stroke()
|
||||
|
||||
// 内容摘要
|
||||
ctx.setFontSize(12)
|
||||
ctx.setFillStyle('rgba(255,255,255,0.8)')
|
||||
y += 30
|
||||
const summary = contentParagraphs.slice(0, 3).join(' ').slice(0, 150) + '...'
|
||||
const summaryLines = this.wrapText(ctx, summary, width - 40, 12)
|
||||
summaryLines.slice(0, 6).forEach(line => {
|
||||
ctx.fillText(line, 20, y)
|
||||
y += 20
|
||||
})
|
||||
|
||||
// 底部区域背景
|
||||
ctx.setFillStyle('rgba(0,206,209,0.1)')
|
||||
ctx.fillRect(0, height - 100, width, 100)
|
||||
|
||||
// 左侧提示文字
|
||||
ctx.setFillStyle('#ffffff')
|
||||
ctx.setFontSize(13)
|
||||
ctx.fillText('长按识别小程序码', 20, height - 60)
|
||||
ctx.setFillStyle('rgba(255,255,255,0.6)')
|
||||
ctx.setFontSize(11)
|
||||
ctx.fillText('长按小程序码阅读全文', 20, height - 38)
|
||||
|
||||
// 绘制小程序码或占位符
|
||||
const drawQRCode = () => {
|
||||
return new Promise((resolve) => {
|
||||
if (qrcodeImage) {
|
||||
// 下载base64图片并绘制
|
||||
const fs = wx.getFileSystemManager()
|
||||
const filePath = `${wx.env.USER_DATA_PATH}/qrcode_${Date.now()}.png`
|
||||
const base64Data = qrcodeImage.replace(/^data:image\/\w+;base64,/, '')
|
||||
|
||||
fs.writeFile({
|
||||
filePath,
|
||||
data: base64Data,
|
||||
encoding: 'base64',
|
||||
success: () => {
|
||||
ctx.drawImage(filePath, width - 85, height - 85, 70, 70)
|
||||
resolve()
|
||||
},
|
||||
fail: () => {
|
||||
this.drawQRPlaceholder(ctx, width, height)
|
||||
resolve()
|
||||
}
|
||||
})
|
||||
} else {
|
||||
this.drawQRPlaceholder(ctx, width, height)
|
||||
resolve()
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
await drawQRCode()
|
||||
|
||||
ctx.draw(true, () => {
|
||||
wx.hideLoading()
|
||||
this.setData({ isGeneratingPoster: false })
|
||||
})
|
||||
} catch (e) {
|
||||
console.error('生成海报失败:', e)
|
||||
wx.hideLoading()
|
||||
wx.showToast({ title: '生成失败', icon: 'none' })
|
||||
this.setData({ showPosterModal: false, isGeneratingPoster: false })
|
||||
}
|
||||
},
|
||||
|
||||
// 绘制小程序码占位符
|
||||
drawQRPlaceholder(ctx, width, height) {
|
||||
ctx.setFillStyle('#ffffff')
|
||||
ctx.beginPath()
|
||||
ctx.arc(width - 50, height - 50, 35, 0, Math.PI * 2)
|
||||
ctx.fill()
|
||||
ctx.setFillStyle('#00CED1')
|
||||
ctx.setFontSize(9)
|
||||
ctx.fillText('扫码', width - 57, height - 52)
|
||||
ctx.fillText('阅读', width - 57, height - 40)
|
||||
},
|
||||
|
||||
// 文字换行处理
|
||||
wrapText(ctx, text, maxWidth, fontSize) {
|
||||
const lines = []
|
||||
let line = ''
|
||||
for (let i = 0; i < text.length; i++) {
|
||||
const testLine = line + text[i]
|
||||
const metrics = ctx.measureText(testLine)
|
||||
if (metrics.width > maxWidth && line) {
|
||||
lines.push(line)
|
||||
line = text[i]
|
||||
} else {
|
||||
line = testLine
|
||||
}
|
||||
}
|
||||
if (line) lines.push(line)
|
||||
return lines
|
||||
},
|
||||
|
||||
// 关闭海报弹窗
|
||||
closePosterModal() {
|
||||
this.setData({ showPosterModal: false })
|
||||
},
|
||||
|
||||
// 保存海报到相册
|
||||
savePoster() {
|
||||
wx.canvasToTempFilePath({
|
||||
canvasId: 'posterCanvas',
|
||||
success: (res) => {
|
||||
wx.saveImageToPhotosAlbum({
|
||||
filePath: res.tempFilePath,
|
||||
success: () => {
|
||||
wx.showToast({ title: '已保存到相册', icon: 'success' })
|
||||
this.setData({ showPosterModal: false })
|
||||
},
|
||||
fail: (err) => {
|
||||
if (err.errMsg.includes('auth deny')) {
|
||||
wx.showModal({
|
||||
title: '提示',
|
||||
content: '需要相册权限才能保存海报',
|
||||
confirmText: '去设置',
|
||||
success: (res) => {
|
||||
if (res.confirm) {
|
||||
wx.openSetting()
|
||||
}
|
||||
}
|
||||
})
|
||||
} else {
|
||||
wx.showToast({ title: '保存失败', icon: 'none' })
|
||||
}
|
||||
}
|
||||
})
|
||||
},
|
||||
fail: () => {
|
||||
wx.showToast({ title: '生成图片失败', icon: 'none' })
|
||||
}
|
||||
}, this)
|
||||
},
|
||||
|
||||
// 阻止冒泡
|
||||
stopPropagation() {}
|
||||
})
|
||||
Reference in New Issue
Block a user