cfc/cfc-frontend/pages/parent/invite/index.vue

<template>
  <view class="container">
    <view class="header">
      <text class="title">邀请家人加入</text>
      <text class="desc">分享给好友，好友注册后自动成为家庭成员</text>
    </view>

    <!-- 邀请码展示 -->
    <view class="invite-card" v-if="inviteCode">
      <view class="invite-code">{{ inviteCode }}</view>
      <text class="invite-tip">好友也可输入邀请码加入</text>
    </view>

    <!-- 分享按钮区域 -->
    <view class="share-section">
      <button class="btn-share-large" open-type="share">
        <text class="share-icon">📤</text>
        <text class="share-text">发送给好友</text>
      </button>
      <text class="share-hint">点击上方按钮，分享到微信好友</text>
    </view>

    <!-- 其他方式 -->
    <view class="other-methods">
      <view class="method-title">其他方式</view>
      <view class="method-item" @click="copyCode">
        <text class="method-icon">📋</text>
        <text class="method-text">复制邀请码</text>
      </view>
      <view class="method-item" @click="generatePoster">
        <text class="method-icon">🖼️</text>
        <text class="method-text">生成邀请海报</text>
      </view>
    </view>

    <!-- 成长规划师邀请说明 -->
    <view class="guide-tip" v-if="role === 'teacher'">
      <text class="tip-title">成长规划师权限说明</text>
      <text class="tip-text">通过邀请码绑定家庭后，您将获得：</text>
      <text class="tip-item">• 查看家庭成员任务完成情况</text>
      <text class="tip-item">• 审核任务执行</text>
      <text class="tip-item">• 制定任务</text>
    </view>

    <!-- 成长规划师绑定家庭 -->
    <view class="section" v-if="role === 'teacher'">
      <view class="section-title">绑定已有家庭</view>
      <input 
        class="input" 
        v-model="familyCode" 
        placeholder="输入家庭邀请码" 
      />
      <button class="btn-primary" @click="bindFamily">绑定家庭</button>
    </view>

    <!-- 海报弹窗 -->
    <view class="poster-mask" v-if="showPoster" @click="showPoster = false">
      <view class="poster-content" @click.stop>
        <canvas canvas-id="posterCanvas" class="poster-canvas"></canvas>
        <button class="btn-save" @click="savePoster">保存到相册</button>
        <text class="poster-hint">保存图片后发送给好友</text>
      </view>
    </view>
  </view>
</template>

<script>
import { getInviteCode, generateFamilyInviteCode, bindGuideFamily, generateQrCodeFromText } from '@/utils/api.js'

export default {
  data() {
    return {
      inviteCode: '',
      familyCode: '',
      role: 'parent',
      showPoster: false,
      familyName: ''
    }
  },
  onLoad() {
    this.role = uni.getStorageSync('role') || 'parent'
    this.loadInviteCode()
    this.loadFamilyName()
  },
  onShareAppMessage() {
    var code = this.inviteCode || ''
    var path = '/pages/invite/join'
    if (code) {
      path = path + '?inviteCode=' + code
    }
    return {
      title: '我在浠艾福发现了好用的家庭成长工具，快来加入！',
      path: path,
      imageUrl: ''
    }
  },
  methods: {
    async loadInviteCode() {
      try {
        const res = await getInviteCode()
        if (res.data) {
          this.inviteCode = res.data
        } else {
          const genRes = await generateFamilyInviteCode()
          this.inviteCode = genRes.data
        }
      } catch (e) {
        console.error('获取邀请码失败', e)
      }
    },
    async loadFamilyName() {
      try {
        const userInfo = uni.getStorageSync('userInfo')
        if (userInfo && userInfo.nickname) {
          this.familyName = userInfo.nickname + '的家庭'
        } else {
          this.familyName = '我的家庭'
        }
      } catch (e) {
        this.familyName = '我的家庭'
      }
    },
    copyCode() {
      uni.setClipboardData({
        data: this.inviteCode,
        success: () => {
          uni.showToast({ title: '已复制邀请码', icon: 'success' })
        }
      })
    },
    async generatePoster() {
      this.showPoster = true

      // 先获取二维码
      var qrTempPath = ''
      if (this.inviteCode) {
        var invitePath = '/pages/invite/join?inviteCode=' + this.inviteCode
        try {
          var res = await generateQrCodeFromText(invitePath)
          if (res.code === 200 && res.data) {
            var rawBase64 = res.data.qrCodeBase64
            if (rawBase64.indexOf('base64,') >= 0) {
              rawBase64 = rawBase64.split('base64,')[1]
            }
            var fsm = uni.getFileSystemManager()
            var path = wx.env.USER_DATA_PATH + '/qr_poster_' + Date.now() + '.png'
            fsm.writeFileSync(path, rawBase64, 'base64')
            qrTempPath = path
          }
        } catch (e) {
          console.error('生成二维码失败', e)
        }
      }

      this.$nextTick(function() {
        this.drawPoster(qrTempPath)
      }.bind(this))
    },
    drawPoster(qrTempPath) {
      const ctx = uni.createCanvasContext('posterCanvas')
      const width = 300
      const height = 450
      var self = this
      
      // 背景
      ctx.setFillStyle('#667eea')
      ctx.fillRect(0, 0, width, height)
      
      // 标题
      ctx.setFillStyle('#ffffff')
      ctx.setFontSize(20)
      ctx.setTextAlign('center')
      ctx.fillText('邀请加入家庭', width / 2, 40)
      
      // 家庭名
      ctx.setFontSize(14)
      ctx.fillText(self.familyName, width / 2, 70)
      
      // 邀请码
      ctx.setFillStyle('#ffffff')
      ctx.setFontSize(32)
      ctx.setTextAlign('center')
      ctx.fillText(self.inviteCode, width / 2, 130)
      
      // 提示
      ctx.setFontSize(12)
      ctx.setFillStyle('rgba(255,255,255,0.8)')
      ctx.setTextAlign('center')
      ctx.fillText('输入邀请码加入家庭', width / 2, 170)
      
      // 二维码区域
      if (qrTempPath) {
        ctx.drawImage(qrTempPath, 75, 210, 150, 150)
      } else {
        ctx.setFillStyle('#ffffff')
        ctx.fillRect(75, 210, 150, 150)
        ctx.setFillStyle('#667eea')
        ctx.setFontSize(12)
        ctx.setTextAlign('center')
        ctx.fillText('扫码注册', width / 2, 300)
      }
      
      ctx.draw()
    },
    savePoster() {
      uni.canvasToTempFilePath({
        canvasId: 'posterCanvas',
        success: (res) => {
          uni.saveImageToPhotosAlbum({
            filePath: res.tempFilePath,
            success: () => {
              uni.showToast({ title: '已保存到相册', icon: 'success' })
              this.showPoster = false
            },
            fail: () => {
              uni.showToast({ title: '保存失败', icon: 'none' })
            }
          })
        },
        fail: () => {
          uni.showToast({ title: '生成失败', icon: 'none' })
        }
      })
    },
    async bindFamily() {
      if (!this.familyCode) {
        uni.showToast({ title: '请输入家庭邀请码', icon: 'none' })
        return
      }
      try {
        await bindGuideFamily(this.familyCode)
        uni.showToast({ title: '绑定成功', icon: 'success' })
      } catch (e) {
        uni.showToast({ title: e.message || '绑定失败', icon: 'none' })
      }
    }
  }
}
</script>

<style scoped>
.container { padding: 30rpx; min-height: 100vh; background: #f5f5f5; }
.header { text-align: center; padding: 40rpx 0; }
.title { font-size: 40rpx; font-weight: bold; display: block; margin-bottom: 16rpx; color: #333; }
.desc { font-size: 28rpx; color: #666; }
.invite-card { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); border-radius: 20rpx; padding: 50rpx; text-align: center; margin: 30rpx 0; }
.invite-code { font-size: 56rpx; font-weight: bold; color: #fff; letter-spacing: 8rpx; margin-bottom: 16rpx; }
.invite-tip { font-size: 24rpx; color: rgba(255,255,255,0.8); }

.share-section { background: #fff; border-radius: 20rpx; padding: 40rpx; margin: 30rpx 0; text-align: center; }
.btn-share-large { background: #07c160; color: #fff; border-radius: 60rpx; padding: 24rpx 60rpx; display: inline-flex; align-items: center; justify-content: center; }
.btn-share-large::after { border: none; }
.share-icon { font-size: 36rpx; margin-right: 16rpx; }
.share-text { font-size: 32rpx; font-weight: bold; }
.share-hint { display: block; margin-top: 20rpx; font-size: 24rpx; color: #999; }

.other-methods { background: #fff; border-radius: 20rpx; padding: 30rpx; margin: 30rpx 0; }
.method-title { font-size: 28rpx; color: #999; margin-bottom: 20rpx; }
.method-item { display: flex; align-items: center; padding: 20rpx 0; border-bottom: 1rpx solid #f0f0f0; }
.method-item:last-child { border-bottom: none; }
.method-icon { font-size: 40rpx; margin-right: 20rpx; }
.method-text { font-size: 28rpx; color: #333; }

.guide-tip { background: #fff3e0; border-radius: 16rpx; padding: 30rpx; margin: 30rpx 0; }
.tip-title { font-size: 28rpx; font-weight: bold; color: #ff9800; display: block; margin-bottom: 16rpx; }
.tip-text { font-size: 24rpx; color: #666; display: block; margin-bottom: 12rpx; }
.tip-item { font-size: 24rpx; color: #666; display: block; margin-left: 20rpx; line-height: 1.8; }

.section { background: #fff; border-radius: 20rpx; padding: 30rpx; margin: 30rpx 0; }
.section-title { font-size: 28rpx; font-weight: bold; margin-bottom: 20rpx; }
.input { border: 1rpx solid #ddd; border-radius: 10rpx; padding: 20rpx; margin-bottom: 20rpx; font-size: 28rpx; }

.poster-mask { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.8); display: flex; align-items: center; justify-content: center; z-index: 999; }
.poster-content { background: #fff; border-radius: 20rpx; padding: 30rpx; text-align: center; }
.poster-canvas { width: 300px; height: 450px; margin: 0 auto; }
.btn-save { background: #07c160; color: #fff; border-radius: 40rpx; padding: 20rpx; margin: 20rpx 0; }
.poster-hint { font-size: 24rpx; color: #999; display: block; }
</style>