<script setup lang="ts">
import type { StudentInfo } from '@/service/types'
import { useQuery } from '@tanstack/vue-query'
import { whenever } from '@vueuse/core'
import { computed, onMounted, ref } from 'vue'
import StudentListItem from '@/components/student/StudentListItem.vue'
import { teacherAnalysisAttentionStudentUsingPost, teacherAnalysisExportStudentListUsingPost, teacherAnalysisStudentListUsingPost } from '@/service/laoshichengjifenxi'
import { useHomeStore } from '@/store/home'

const homeStore = useHomeStore()
const searchQuery = ref('')

// 检查是否可以加载学生数据
const canLoadStudents = computed(() => {
  return homeStore.selectedClassId && homeStore.selectedExamId && homeStore.selectedSubjectId && homeStore.selectedGradeKey
})

// 使用 TanStack Query 获取学生数据
const {
  data: studentsData,
  isLoading: loading,
  error,
  refetch,
} = useQuery({
  queryKey: computed(() => [
    'students',
    homeStore.selectedClassId,
    homeStore.selectedExamId,
    homeStore.selectedSubjectId,
    homeStore.selectedGradeKey,
    searchQuery.value,
  ]),
  queryFn: async () => {
    const response = await teacherAnalysisStudentListUsingPost({
      body: {
        class_id: homeStore.selectedClassId!,
        exam_subject_id: homeStore.selectedSubjectId!,
        grade_id: homeStore.selectedGradeKey!,
        keyword: searchQuery.value || undefined,
      },
    })

    return response || { attentioned_students: [], other_students: [] }
  },
  enabled: computed(() => !!canLoadStudents.value),
  staleTime: 30000,
  gcTime: 300000,
})

// 计算学生列表
const attentionedStudents = computed(() => studentsData.value?.attentioned_students || [])
const otherStudents = computed(() => studentsData.value?.other_students || [])

// 跳转到学生详情
function goToStudentDetail(student: StudentInfo) {
  uni.navigateTo({
    url: `/pages/student/detail?info_id=${student.info_id}`,
  })
}

// 切换关注状态
async function toggleAttention(student: StudentInfo) {
  if (!student.student_number) {
    return uni.showToast({ title: '学生信息不完整', icon: 'error' })
  }

  uni.showLoading({ title: '处理中...' })

  try {
    await teacherAnalysisAttentionStudentUsingPost({
      body: { student_number: student.student_number, remark: '' },
    })
    uni.showToast({ title: '操作成功', icon: 'success' })
    refetch()
  }
  catch (error) {
    console.error('关注学生失败:', error)
    uni.showToast({ title: '操作失败', icon: 'error' })
  }
  finally {
    uni.hideLoading()
  }
}

// 下载功能
async function handleDownload() {
  try {
    uni.showLoading({ title: '准备下载...' })

    const response = await teacherAnalysisExportStudentListUsingPost({
      body: {
        class_id: homeStore.selectedClassId!,
        exam_subject_id: homeStore.selectedSubjectId!,
        grade_id: homeStore.selectedGradeKey!,
      },
    })

    if (response) {
      // 构建完整的下载URL
      const downloadUrl = `${import.meta.env.VITE_API_BASE_URL || ''}${response}`

      // 在H5环境下直接打开下载链接
      // #ifdef H5
      window.open(downloadUrl, '_blank')
      // #endif

      // 在小程序和APP环境下使用uni.downloadFile
      // #ifndef H5
      uni.downloadFile({
        url: downloadUrl,
        success: (res) => {
          if (res.statusCode === 200) {
            uni.showToast({ title: '下载成功', icon: 'success' })
          }
        },
        fail: () => {
          uni.showToast({ title: '下载失败', icon: 'error' })
        },
      })
      // #endif

      uni.showToast({ title: '开始下载', icon: 'success' })
    }
    else {
      uni.showToast({ title: '获取下载链接失败', icon: 'error' })
    }
  }
  catch (error) {
    console.error('下载学生数据失败:', error)
    uni.showToast({ title: '下载失败', icon: 'error' })
  }
  finally {
    uni.hideLoading()
  }
}

// 分享功能
const handleShare = () => uni.showToast({ title: '分享功能开发中', icon: 'none' })

// 处理查询错误
whenever(() => error.value, (err) => {
  if (err) {
    console.error('加载学生数据失败:', err)
    uni.showToast({ title: '加载失败', icon: 'error' })
  }
})

onMounted(async () => {
  if (homeStore.examOptions.length === 0) {
    await homeStore.fetchOptions()
  }
})
</script>

<template>
  <view class="min-h-screen bg-gray-50">
    <!-- 标题栏 -->
    <view class="flex items-center justify-between border-b border-gray-100 bg-white px-4 py-3">
      <text class="text-lg text-gray-800 font-semibold">学生名单</text>
      <view class="flex items-center gap-3">
        <view class="i-fluent:arrow-download-20-regular text-lg text-gray-600" @click="handleDownload" />
        <view class="i-fluent:share-20-regular text-lg text-gray-600" @click="handleShare" />
      </view>
    </view>

    <!-- 选择器区域 -->
    <view class="border-b border-gray-100 bg-white px-4">
      <wd-drop-menu>
        <wd-drop-menu-item v-model="homeStore.selectedClassId" :options="homeStore.classOptions" />
        <wd-drop-menu-item v-model="homeStore.selectedExamId" :options="homeStore.examOptions" />
        <wd-drop-menu-item v-model="homeStore.selectedSubjectId" :options="homeStore.subjectOptions" />
      </wd-drop-menu>
    </view>

    <!-- 搜索框 -->
    <view class="border-b border-gray-100 bg-white px-4">
      <wd-search v-model="searchQuery" placeholder="请输入学生姓名" hide-cancel />
    </view>

    <!-- 学生列表 -->
    <view v-if="!loading && (attentionedStudents.length > 0 || otherStudents.length > 0)">
      <!-- 重点关注的学生 -->
      <view v-if="attentionedStudents.length > 0">
        <view class="flex items-center bg-white px-4 py-3">
          <view class="i-fluent:star-20-filled mr-2 text-yellow-500" />
          <text class="text-sm text-gray-700 font-medium">重点关注的学生</text>
        </view>

        <StudentListItem
          v-for="(student, index) in attentionedStudents"
          :key="student.info_id"
          :student="student"
          :index="index + 1"
          :is-attentioned="true"
          @click="goToStudentDetail"
          @toggle-attention="toggleAttention"
        />
      </view>

      <!-- 其他学生 -->
      <view v-if="otherStudents.length > 0">
        <view class="mt-2 flex items-center bg-white px-4 py-3">
          <text class="text-sm text-gray-700 font-medium">学生列表</text>
        </view>

        <StudentListItem
          v-for="(student, index) in otherStudents"
          :key="student.info_id"
          :student="student"
          :index="attentionedStudents.length + index + 1"
          :is-attentioned="false"
          @click="goToStudentDetail"
          @toggle-attention="toggleAttention"
        />
      </view>
    </view>

    <!-- 空状态 -->
    <wd-status-tip
      v-if="!loading && !canLoadStudents"
      image="search"
      tip="请选择班级、考试和科目"
    />

    <wd-status-tip
      v-else-if="!loading && canLoadStudents && attentionedStudents.length === 0 && otherStudents.length === 0"
      image="search"
      tip="暂无学生数据"
    />

    <!-- 加载状态 -->
    <view v-if="loading" class="flex items-center justify-center py-20">
      <wd-loading />
      <text class="ml-2 text-gray-500">加载中...</text>
    </view>
  </view>
</template>

<route lang="jsonc" type="home">
{
  "layout": "tabbar",
  "style": {
    "navigationStyle": "custom",
    "navigationBarTitleText": "学生名单"
  }
}
</route>
