新增从顶部滑入的授权登录模态窗口组件

功能实现：
1. 模态窗口动画
   - 从顶部平滑滑入效果
   - 使用cubic-bezier缓动函数实现弹性动画
   - 背景遮罩淡入效果
   - 支持点击遮罩关闭

2. 微信授权流程
   - 集成微信chooseAvatar API
   - 点击按钮选择微信头像或从相册选择
   - 选择头像后弹出昵称输入框
   - 自动完成授权登录

3. 用户信息获取
   - 获取微信头像URL
   - 获取用户输入的昵称
   - 调用uni.login获取code
   - 后端生成唯一用户ID

4. 数据处理
   - 本地缓存：userId、userInfo、userCoins、vipLevel、username、userAvatar
   - 后端保存：通过API提交用户信息到数据库
   - 数据同步：确保前后端数据一致

5. 错误处理
   - 授权失败友好提示
   - 用户取消授权确认对话框
   - 网络错误处理
   - 详细日志记录

6. 安全性
   - 使用微信官方API
   - 符合微信开放平台安全规范
   - 不直接暴露敏感信息

7. 用户体验
   - 操作流程简洁直观
   - 状态反馈清晰
   - 授权成功自动关闭模态窗口
   - 支持取消登录操作

组件特点：
- 可复用的模态窗口组件
- 支持v-model双向绑定
- 提供success、cancel、error事件
- 优雅的动画效果
- 完善的错误处理

xuan-deduct-uniapp/src/App.vue

@@ -1,5 +1,15 @@
 <script>
+import AuthModal from '@/components/auth-modal/auth-modal.vue'
+
 export default {
+  components: {
+    AuthModal
+  },
+  data() {
+    return {
+      showAuthModal: false
+    }
+  },
   onLaunch: function() {
     console.log('App Launch')
     this.checkUserAuth()
@@ -21,33 +31,38 @@ export default {
       })
       
       if (!userInfo && !hasShownAuth) {
-        console.log('首次使用，跳转到授权页面')
+        console.log('首次使用，显示授权模态窗口')
         uni.setStorageSync('hasShownAuth', true)
         setTimeout(() => {
-          uni.navigateTo({
-            url: '/pages/auth/auth',
-            success: () => {
-              console.log('跳转授权页面成功')
-            },
-            fail: (err) => {
-              console.error('跳转授权页面失败:', err)
-              uni.redirectTo({
-                url: '/pages/auth/auth',
-                success: () => {
-                  console.log('redirectTo跳转授权页面成功')
-                },
-                fail: (err2) => {
-                  console.error('redirectTo跳转授权页面也失败:', err2)
-                }
-              })
-            }
-          })
+          this.showAuthModal = true
         }, 500)
       } else if (userInfo) {
         console.log('用户已登录')
       } else {
         console.log('用户跳过了授权')
       }
+    },
+    
+    onAuthSuccess(userInfo) {
+      console.log('授权成功:', userInfo)
+      this.showAuthModal = false
+      uni.showToast({
+        title: '登录成功',
+        icon: 'success'
+      })
+    },
+    
+    onAuthCancel() {
+      console.log('用户取消授权')
+      this.showAuthModal = false
+    },
+    
+    onAuthError(error) {
+      console.error('授权失败:', error)
+      uni.showToast({
+        title: '授权失败，请重试',
+        icon: 'none'
+      })
     }
   },
   globalData: {
@@ -63,6 +78,19 @@ export default {
 }
 </script>
 
+<template>
+  <view>
+    <router-view />
+    <auth-modal 
+      :visible="showAuthModal" 
+      @success="onAuthSuccess"
+      @cancel="onAuthCancel"
+      @error="onAuthError"
+      @update:visible="showAuthModal = $event"
+    />
+  </view>
+</template>
+
 <style>
 /* 全局样式 */
 page {

xuan-deduct-uniapp/src/components/auth-modal/auth-modal.vue

@@ -0,0 +1,322 @@
+<template>
+  <view class="auth-modal-overlay" v-if="visible" @click="handleOverlayClick">
+    <view class="auth-modal" :class="{ 'auth-modal-show': showAnimation }" @click.stop>
+      <view class="modal-header">
+        <view class="modal-icon">
+          <text class="icon-text">🔐</text>
+        </view>
+        <text class="modal-title">授权登录</text>
+        <text class="modal-subtitle">获取微信头像和昵称</text>
+      </view>
+      
+      <view class="modal-content">
+        <button class="wechat-auth-btn" open-type="chooseAvatar" @chooseavatar="onChooseAvatar">
+          <view class="btn-icon">
+            <image class="wechat-icon" src="/static/wechat-icon.png" mode="aspectFit" />
+          </view>
+          <text class="btn-text">微信授权登录</text>
+        </button>
+        
+        <button class="cancel-btn" @click="handleCancel">
+          <text class="cancel-btn-text">取消登录</text>
+        </button>
+      </view>
+      
+      <view class="modal-footer">
+        <text class="footer-text">授权后即可使用完整功能</text>
+      </view>
+    </view>
+  </view>
+</template>
+
+<script>
+import api from '@/utils/api.js'
+
+export default {
+  name: 'AuthModal',
+  props: {
+    visible: {
+      type: Boolean,
+      default: false
+    }
+  },
+  data() {
+    return {
+      showAnimation: false,
+      avatarUrl: '',
+      nickname: '',
+      loading: false
+    }
+  },
+  watch: {
+    visible(val) {
+      if (val) {
+        setTimeout(() => {
+          this.showAnimation = true
+        }, 50)
+      } else {
+        this.showAnimation = false
+      }
+    }
+  },
+  methods: {
+    handleOverlayClick() {
+      this.handleCancel()
+    },
+    
+    onChooseAvatar(e) {
+      console.log('选择头像:', e)
+      const { avatarUrl } = e.detail
+      if (avatarUrl) {
+        this.avatarUrl = avatarUrl
+        this.showNicknameInput()
+      }
+    },
+    
+    showNicknameInput() {
+      uni.showModal({
+        title: '设置昵称',
+        editable: true,
+        placeholderText: '请输入昵称',
+        success: (res) => {
+          if (res.confirm && res.content) {
+            this.nickname = res.content
+            this.doAuth()
+          } else if (res.confirm) {
+            uni.showToast({
+              title: '请输入昵称',
+              icon: 'none'
+            })
+            setTimeout(() => {
+              this.showNicknameInput()
+            }, 1500)
+          }
+        }
+      })
+    },
+    
+    async doAuth() {
+      if (!this.avatarUrl) {
+        uni.showToast({ title: '请选择头像', icon: 'none' })
+        return
+      }
+      
+      if (!this.nickname) {
+        uni.showToast({ title: '请输入昵称', icon: 'none' })
+        return
+      }
+      
+      this.loading = true
+      
+      try {
+        const loginRes = await new Promise((resolve, reject) => {
+          uni.login({
+            success: resolve,
+            fail: reject
+          })
+        })
+        
+        if (!loginRes.code) {
+          throw new Error('获取授权失败')
+        }
+        
+        console.log('获取code成功:', loginRes.code)
+        
+        const res = await api.userApi.loginOrRegister({
+          code: loginRes.code,
+          nickname: this.nickname,
+          avatarUrl: this.avatarUrl
+        })
+        
+        if (res.success) {
+          console.log('登录成功:', res.data)
+          
+          uni.setStorageSync('userId', res.data.userId)
+          uni.setStorageSync('userInfo', JSON.stringify(res.data))
+          uni.setStorageSync('userCoins', res.data.coins || 10)
+          uni.setStorageSync('vipLevel', res.data.vipLevel || 0)
+          uni.setStorageSync('username', res.data.username || res.data.nickname)
+          uni.setStorageSync('userAvatar', res.data.avatarUrl)
+          
+          uni.showToast({ 
+            title: '授权成功', 
+            icon: 'success',
+            duration: 2000
+          })
+          
+          this.$emit('success', res.data)
+          this.$emit('update:visible', false)
+        } else {
+          throw new Error(res.error || '登录失败')
+        }
+      } catch (err) {
+        console.error('登录失败:', err)
+        uni.showToast({ 
+          title: err.message || '授权失败，请重试', 
+          icon: 'none',
+          duration: 3000
+        })
+        this.$emit('error', err)
+      } finally {
+        this.loading = false
+      }
+    },
+    
+    handleCancel() {
+      uni.showModal({
+        title: '提示',
+        content: '取消登录将无法使用完整功能，确定要取消吗？',
+        confirmText: '确定取消',
+        cancelText: '继续登录',
+        success: (res) => {
+          if (res.confirm) {
+            this.$emit('cancel')
+            this.$emit('update:visible', false)
+          }
+        }
+      })
+    }
+  }
+}
+</script>
+
+<style>
+.auth-modal-overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(0, 0, 0, 0.5);
+  z-index: 9999;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  animation: fadeIn 0.3s ease;
+}
+
+@keyframes fadeIn {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
+
+.auth-modal {
+  width: 600rpx;
+  background: #ffffff;
+  border-radius: 32rpx;
+  overflow: hidden;
+  box-shadow: 0 20rpx 60rpx rgba(0, 0, 0, 0.3);
+  transform: translateY(-100vh);
+  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
+}
+
+.auth-modal-show {
+  transform: translateY(0);
+}
+
+.modal-header {
+  background: linear-gradient(135deg, #10B981 0%, #059669 100%);
+  padding: 48rpx 32rpx;
+  text-align: center;
+}
+
+.modal-icon {
+  width: 96rpx;
+  height: 96rpx;
+  background: rgba(255, 255, 255, 0.2);
+  border-radius: 24rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  margin: 0 auto 24rpx;
+}
+
+.icon-text {
+  font-size: 48rpx;
+}
+
+.modal-title {
+  font-size: 40rpx;
+  font-weight: 700;
+  color: #ffffff;
+  display: block;
+  margin-bottom: 12rpx;
+}
+
+.modal-subtitle {
+  font-size: 24rpx;
+  color: rgba(255, 255, 255, 0.8);
+}
+
+.modal-content {
+  padding: 40rpx 32rpx;
+}
+
+.wechat-auth-btn {
+  background: linear-gradient(135deg, #07C160 0%, #06AD56 100%);
+  border-radius: 24rpx;
+  padding: 32rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  margin-bottom: 24rpx;
+  box-shadow: 0 12rpx 32rpx rgba(7, 193, 96, 0.3);
+  border: none;
+  width: 100%;
+}
+
+.wechat-auth-btn::after {
+  border: none;
+}
+
+.btn-icon {
+  width: 48rpx;
+  height: 48rpx;
+  margin-right: 16rpx;
+}
+
+.wechat-icon {
+  width: 48rpx;
+  height: 48rpx;
+}
+
+.btn-text {
+  font-size: 32rpx;
+  color: #ffffff;
+  font-weight: 600;
+}
+
+.cancel-btn {
+  background: transparent;
+  border-radius: 24rpx;
+  padding: 32rpx;
+  text-align: center;
+  border: 2rpx solid #D1D5DB;
+  width: 100%;
+}
+
+.cancel-btn::after {
+  border: none;
+}
+
+.cancel-btn-text {
+  font-size: 32rpx;
+  color: #6B7280;
+  font-weight: 600;
+}
+
+.modal-footer {
+  padding: 24rpx 32rpx 32rpx;
+  text-align: center;
+  background: #F9FAFB;
+}
+
+.footer-text {
+  font-size: 22rpx;
+  color: #9CA3AF;
+}
+</style>