<template>
  <div class="profile-page">
    <Navbar />
    <div class="page-container">
      <!-- 个人信息卡片 -->
      <div class="profile-header">
        <div class="user-avatar-section">
          <div class="avatar-container">
            <el-avatar :size="120" :src="userProfile.avatar">
              {{ userProfile.username.charAt(0).toUpperCase() }}
            </el-avatar>
            <el-button 
              type="primary" 
              size="small" 
              class="change-avatar-btn"
              @click="showAvatarDialog = true"
            >
              更换头像
            </el-button>
          </div>
          
          <div class="user-basic-info">
            <h1 class="username">{{ userProfile.username }}</h1>
            <div class="user-title">
              <el-tag :type="getUserTitleType(userProfile.userLevel)" size="large">
                {{ userProfile.userTitle }}
              </el-tag>
            </div>
            <div class="join-info">
              <el-icon><Calendar /></el-icon>
              <span>加入时间：{{ formatDate(userProfile.joinDate) }}</span>
            </div>
            <div class="last-login">
              <el-icon><Clock /></el-icon>
              <span>最后登录：{{ formatTime(userProfile.lastLogin) }}</span>
            </div>
          </div>
        </div>
        
        <div class="user-stats-overview">
          <div class="stats-grid">
            <div class="stat-card">
              <div class="stat-icon upload">
                <el-icon size="32"><Upload /></el-icon>
              </div>
              <div class="stat-info">
                <h3>{{ userProfile.stats.uploaded }}</h3>
                <p>上传量</p>
              </div>
            </div>
            
            <div class="stat-card">
              <div class="stat-icon download">
                <el-icon size="32"><Download /></el-icon>
              </div>
              <div class="stat-info">
                <h3>{{ userProfile.stats.downloaded }}</h3>
                <p>下载量</p>
              </div>
            </div>
            
            <div class="stat-card">
              <div class="stat-icon ratio" :class="getRatioClass(userProfile.stats.ratio)">
                <el-icon size="32"><TrendCharts /></el-icon>
              </div>
              <div class="stat-info">
                <h3>{{ userProfile.stats.ratio }}</h3>
                <p>分享率</p>
              </div>
            </div>
            
            <div class="stat-card">
              <div class="stat-icon points">
                <el-icon size="32"><Star /></el-icon>
              </div>
              <div class="stat-info">
                <h3>{{ userProfile.stats.points }}</h3>
                <p>积分</p>
              </div>
            </div>
          </div>
        </div>
      </div>

      <!-- 详细信息选项卡 -->
      <div class="profile-content">
        <el-tabs v-model="activeTab" type="border-card">
          <!-- 个人信息 -->
          <el-tab-pane label="个人信息" name="info">
            <div class="info-section">
              <el-form
                ref="profileFormRef"
                :model="editProfile"
                :rules="profileRules"
                label-width="120px"
                size="large"
              >
                <div class="form-section">
                  <h3>基本信息</h3>
                  <el-form-item label="用户名">
                    <el-input v-model="editProfile.username" disabled>
                      <template #suffix>
                        <el-tooltip content="用户名不可修改">
                          <el-icon><QuestionFilled /></el-icon>
                        </el-tooltip>
                      </template>
                    </el-input>
                  </el-form-item>
                  
                  <el-form-item label="邮箱地址" prop="email">
                    <el-input v-model="editProfile.email" type="email" />
                  </el-form-item>
                  
                  <el-form-item label="真实姓名" prop="realName">
                    <el-input v-model="editProfile.realName" placeholder="可选填写" />
                  </el-form-item>
                  
                  <el-form-item label="所在地区">
                    <el-cascader
                      v-model="editProfile.location"
                      :options="locationOptions"
                      placeholder="请选择地区"
                      clearable
                    />
                  </el-form-item>
                </div>
              </el-form>
            </div>
          </el-tab-pane>
        </el-tabs>
      </div>
    </div>

    <!-- 更换头像对话框 -->
    <el-dialog v-model="showAvatarDialog" title="更换头像" width="400px">
      <div class="avatar-upload">
        <el-upload
          ref="avatarUploadRef"
          :auto-upload="false"
          :limit="1"
          accept="image/*"
          :on-change="handleAvatarChange"
          list-type="picture-card"
          class="avatar-uploader"
        >
          <el-icon><Plus /></el-icon>
        </el-upload>
        <div class="upload-tips">
          <p>支持 JPG、PNG 格式</p>
          <p>建议尺寸 200x200 像素</p>
          <p>文件大小不超过 2MB</p>
        </div>
      </div>
      
      <template #footer>
        <el-button @click="showAvatarDialog = false">取消</el-button>
        <el-button type="primary" @click="uploadAvatar" :loading="uploadingAvatar">
          上传头像
        </el-button>
      </template>
    </el-dialog>
  </div>
</template>

<script>
import { ref, reactive, computed, onMounted, nextTick } from 'vue'
import { ElMessage } from 'element-plus'
import {
  Calendar,
  Clock,
  Upload,
  Download,
  TrendCharts,
  Star,
  QuestionFilled,
  Plus
} from '@element-plus/icons-vue'
import Navbar from '@/components/Navbar.vue'

export default {
  name: 'ProfileView',
  components: {
    Navbar
  },
  setup() {
    const activeTab = ref('info')
    const showAvatarDialog = ref(false)
    const saving = ref(false)
    const uploadingAvatar = ref(false)

    const userProfile = ref({
      username: 'MovieExpert',
      email: 'movieexpert@example.com',
      realName: '',
      avatar: '',
      userLevel: 5,
      userTitle: '资深会员',
      joinDate: '2023-01-15T10:00:00',
      lastLogin: '2025-06-03T14:30:00',
      location: ['北京市', '朝阳区'],
      signature: '热爱电影，分享快乐！',
      website: 'https://movieblog.com',
      interests: ['电影', '音乐', '科技', '摄影'],
      emailPublic: false,
      statsPublic: true,
      activityPublic: true,
      stats: {
        uploaded: '256.8 GB',
        downloaded: '89.6 GB',
        ratio: '2.87',
        points: '15,680'
      },
      detailedStats: {
        totalUploaded: '256.8 GB',
        uploadedTorrents: 45,
        avgUploadSize: '5.7 GB',
        totalDownloaded: '89.6 GB',
        downloadedTorrents: 123,
        completedTorrents: 118,
        seeding: 32,
        seedingTime: '1,245 小时',
        seedingRank: 86,
        totalEarnedPoints: '28,940',
        totalSpentPoints: '13,260'
      }
    })

    const editProfile = reactive({
      username: '',
      email: '',
      realName: '',
      location: [],
      signature: '',
      website: '',
      interests: [],
      emailPublic: false,
      statsPublic: true,
      activityPublic: true
    })

    const profileRules = {
      email: [
        { required: true, message: '请输入邮箱地址', trigger: 'blur' },
        { type: 'email', message: '请输入正确的邮箱格式', trigger: 'blur' }
      ]
    }

    const locationOptions = [
      {
        value: '北京市',
        label: '北京市',
        children: [
          { value: '朝阳区', label: '朝阳区' },
          { value: '海淀区', label: '海淀区' },
          { value: '丰台区', label: '丰台区' }
        ]
      },
      {
        value: '上海市',
        label: '上海市',
        children: [
          { value: '浦东新区', label: '浦东新区' },
          { value: '黄浦区', label: '黄浦区' },
          { value: '静安区', label: '静安区' }
        ]
      }
    ]

    onMounted(() => {
      loadUserProfile()
    })

    const loadUserProfile = () => {
      // 加载用户资料到编辑表单
      Object.assign(editProfile, {
        username: userProfile.value.username,
        email: userProfile.value.email,
        realName: userProfile.value.realName,
        location: userProfile.value.location,
        signature: userProfile.value.signature,
        website: userProfile.value.website,
        interests: [...userProfile.value.interests],
        emailPublic: userProfile.value.emailPublic,
        statsPublic: userProfile.value.statsPublic,
        activityPublic: userProfile.value.activityPublic
      })
    }

    const formatDate = (dateString) => {
      const date = new Date(dateString)
      return date.toLocaleDateString('zh-CN')
    }

    const formatTime = (timeString) => {
      const date = new Date(timeString)
      const now = new Date()
      const diff = now - date
      const hours = Math.floor(diff / (1000 * 60 * 60))

      if (hours < 1) return '刚刚'
      if (hours < 24) return `${hours}小时前`
      const days = Math.floor(hours / 24)
      if (days < 7) return `${days}天前`

      return date.toLocaleDateString('zh-CN')
    }

    const getUserTitleType = (level) => {
      if (level >= 8) return 'danger'  // 管理员
      if (level >= 6) return 'warning' // 资深会员
      if (level >= 4) return 'success' // 正式会员
      if (level >= 2) return 'info'    // 初级会员
      return 'default' // 新手
    }

    const getRatioClass = (ratio) => {
      const r = parseFloat(ratio)
      if (r >= 2) return 'excellent'
      if (r >= 1) return 'good'
      return 'warning'
    }

    const saveProfile = async () => {
      try {
        await profileFormRef.value?.validate()
        
        saving.value = true
        
        // 模拟保存过程
        await new Promise(resolve => setTimeout(resolve, 1500))
        
        // 更新用户资料
        Object.assign(userProfile.value, editProfile)
        
        ElMessage.success('个人资料保存成功')
        
      } catch (error) {
        console.error('表单验证失败:', error)
      } finally {
        saving.value = false
      }
    }

    return {
      activeTab,
      showAvatarDialog,
      saving,
      userProfile,
      editProfile,
      profileRules,
      locationOptions,
      formatDate,
      formatTime,
      getUserTitleType,
      getRatioClass,
      saveProfile
    }
  }
}
</script>

<style scoped>
/* 添加相关样式 */
</style>