<template>
  <div class="page-container">
    <n-card>
      <!-- 搜索表单 -->
      <div class="search-form">
        <n-form inline :model="searchForm" label-placement="left">
          <n-form-item label="质检项名称">
            <n-input v-model:value="searchForm.name" placeholder="请输入质检项名称" clearable />
          </n-form-item>
          <n-form-item>
            <n-space>
              <n-button type="primary" @click="handleSearch">
                <template #icon><n-icon><SearchOutline /></n-icon></template>
                搜索
              </n-button>
              <n-button @click="handleReset">
                <template #icon><n-icon><RefreshOutline /></n-icon></template>
                重置
              </n-button>
            </n-space>
          </n-form-item>
        </n-form>
      </div>

      <!-- 工具栏 -->
      <div class="table-toolbar">
        <n-space>
          <n-button type="primary" @click="handleAdd">
            <template #icon><n-icon><AddOutline /></n-icon></template>
            新增
          </n-button>
          <n-button @click="importModalVisible = true">
            <template #icon><n-icon><CloudUploadOutline /></n-icon></template>
            导入
          </n-button>
          <n-button @click="handleExport">
            <template #icon><n-icon><DownloadOutline /></n-icon></template>
            导出{{ selectedIds.length > 0 ? `(${selectedIds.length})` : '' }}
          </n-button>
          <n-button type="error" :disabled="selectedIds.length === 0" @click="handleBatchDelete">
            <template #icon><n-icon><TrashOutline /></n-icon></template>
            删除
          </n-button>
        </n-space>
      </div>

      <!-- 表格 -->
      <n-data-table
        :columns="columns"
        :data="tableData"
        :loading="loading"
        :row-key="(row) => row.id"
        :scroll-x="1200"
      />

      <div class="pagination-container" style="display: flex; justify-content: flex-end; margin-top: 12px">
        <n-pagination
          v-model:page="pagination.page"
          v-model:page-size="pagination.pageSize"
          :item-count="pagination.itemCount"
          :page-sizes="[10, 20, 50, 100]"
          show-size-picker
          show-quick-jumper
          @update:page="handlePageChange"
          @update:page-size="handlePageSizeChange"
          @update:checked-row-keys="handleCheck"
        >
          <template #prefix>
            共 {{ pagination.itemCount }} 条
          </template>
        </n-pagination>
      </div>

    </n-card>

    <!-- 新增/编辑弹窗 -->
    <n-modal v-model:show="modalVisible" preset="card" :title="modalTitle" style="width: 600px">
      <n-form ref="formRef" :model="formData" :rules="formRules" label-placement="left" label-width="100px">
        <n-form-item label="质检名称" path="name">
          <n-input v-model:value="formData.name" placeholder="请输入质检项名称" />
        </n-form-item>
        <n-form-item label="质检规格" path="spec">
          <n-input v-model:value="formData.spec" placeholder="请输入质检规格" />
        </n-form-item>
        <n-form-item label="质检方案" path="plans">
            <n-upload
                multiple
                directory-dnd
                auto-upload="false"
                :max="5"
                v-model:file-list="fileList"
                @before-upload ="handleBeforeUpload"
                @remove="handleRemove"
            >
                <n-upload-dragger>
                <div style="margin-bottom: 12px">
                    <n-icon size="48" :depth="3">
                    <ArchiveIcon />
                    </n-icon>
                </div>
                <n-text style="font-size: 16px">
                    点击或者拖动文件到该区域来上传
                </n-text>
                <n-p depth="3" style="margin: 8px 0 0 0">
                    文件上传，PDF或Word;文件大小20MB以内
                </n-p>
                </n-upload-dragger>
            </n-upload>
        </n-form-item>
        <n-form-item label="质检描述" path="description">
          <n-input v-model:value="formData.description" type="textarea" placeholder="请输入质检描述" />
        </n-form-item>
      </n-form>
      <template #footer>
        <n-space justify="end">
          <n-button @click="modalVisible = false">取消</n-button>
          <n-button type="primary" @click="handleSubmit">确定</n-button>
        </n-space>
      </template>
    </n-modal>

    <!-- 导入弹窗 -->
    <n-modal v-model:show="importModalVisible" preset="card" title="导入质检项表" style="width: 500px">
      <n-space vertical>
        <n-alert type="info">
          <template #header>导入说明</template>
          <ul style="margin: 0; padding-left: 16px; line-height: 1.8">
            <li>请先下载导入模板，按模板格式填写数据</li>
            <li>支持 .xlsx 或 .xls 格式</li>
          </ul>
        </n-alert>
        <n-space>
          <n-button type="primary" @click="handleDownloadTemplate">
            <template #icon><n-icon><DownloadOutline /></n-icon></template>
            下载模板
          </n-button>
        </n-space>
        <n-upload :max="1" accept=".xlsx,.xls" :show-file-list="true" :custom-request="handleImportUpload">
          <n-upload-dragger>
            <div style="margin-bottom: 12px">
              <n-icon size="48" :depth="3"><CloudUploadOutline /></n-icon>
            </div>
            <n-text style="font-size: 16px">点击或拖拽文件到此处上传</n-text>
            <n-p depth="3" style="margin: 8px 0 0 0">支持 .xlsx 或 .xls 格式</n-p>
          </n-upload-dragger>
        </n-upload>
      </n-space>
      <template #footer>
        <n-button @click="importModalVisible = false">关闭</n-button>
      </template>
    </n-modal>

    <!--质检方案显示抽屉-->
    <n-drawer v-model:show="plansShow" :width="502">
        <n-drawer-content :title="title" closable>
            <n-virtual-list
            ref="virtualListInst"
            style="max-height: 240px"
            :item-size="42"
            :items="sysFileList"
            >
            <template #default="{ item, index }">
                <div :key="item.key" class="item" style="height: 42px">
                     <n-grid x-gap="22">
                        <n-gi span="12">
                           <n-icon v-if="item.fileSuffix == '.pdf'"><DocumentOutline /> </n-icon>
                           <n-icon v-if="item.fileSuffix == '.docx'"><NewspaperOutline /> </n-icon>
                           {{ item.originalName }}
                        </n-gi>
                        <n-gi span="6">
                            {{ calculateSize(item.fileSize)  }}
                        </n-gi>
                        <n-gi span="4">
                            <Button @click="downloadPlans(item)"><n-icon><DownloadOutline /></n-icon></Button>
                        </n-gi>
                     </n-grid>
                </div>
            </template>
            </n-virtual-list>   
        </n-drawer-content>
    </n-drawer>
    <!--关联工序抽屉-->
    <n-drawer v-model:show="processModel" :width="800" >
        <n-drawer-content title="工序列表">
                  <!-- 全选栏 -->
      <n-space justify="space-between" class="mb-3">
        <n-checkbox v-model:checked="isAllCheck" @update:checked="handleAllCheck">
          全选当前筛选工序
        </n-checkbox>
        <n-tag type="info">已勾选 {{ selectedProcessIds.length }} 道工序</n-tag>
      </n-space>

      <!-- 工序表格，带复选框 -->
      <n-data-table
        :columns="processColumns"
        :data="processList"
        max-height="700"
        v-model:checked-row-keys="selectedProcessIds"
        :row-key="rowKey"
        :scroll-x="1200"
        :loading="relateLoading"
        @update:checked-row-keys="handleUpateCheck"
      />
      <div class="pagination-container" style="display: flex; justify-content: flex-end; margin-top: 12px">
        <n-pagination
          v-model:page="relatePagination.page"
          v-model:page-size="relatePagination.pageSize"
          :item-count="relatePagination.itemCount"
          :page-sizes="[10, 20, 50, 100]"
          show-size-picker
          show-quick-jumper
          @update:page="handleRelatePageChange"
          @update:page-size="handleRelatePageSizeChange"
        >
          <template #prefix>
            共 {{ relatePagination.itemCount }} 条
          </template>
        </n-pagination>
      </div>

      <!-- 底部操作按钮 -->
      <template #footer>
        <n-space justify="end">
          <n-button @click="processModel = false">取消</n-button>
        </n-space>
      </template>
    </n-drawer-content>
  </n-drawer>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, h, onMounted,computed  } from 'vue'
import { NButton, NSpace, NIcon, NUpload, useMessage, useDialog, type DataTableColumns,
   type UploadCustomRequestOptions,UploadFileInfo, DataTableRowKey, NTag  } from 'naive-ui'
import { SearchOutline, RefreshOutline, AddOutline,
     TrashOutline, CreateOutline, CloudUploadOutline,NewspaperOutline,DocumentOutline,
      DownloadOutline,ArchiveOutline as ArchiveIcon } from '@vicons/ionicons5'
import { qcItemApi, type QcItem } from '@/api/qcItem'
import { fileApi,SysFile } from '@/api/system'
import Button from 'naive-ui/es/button/src/Button'
import { basicProcessPlanApi,BasicProcessPlan } from '@/api/basicProcessPlan'
import {qcitemProcessApi,QcitemProcess} from '@/api/qcitemProcess'
import { number } from 'echarts'

const message = useMessage()
const dialog = useDialog()


//关联工序
const processModel = ref<Boolean>(false)
const processList = ref<BasicProcessPlan[]>([])
const selectedProcessIds = ref<number[]>([])
const qcProcessRelate =ref<QcitemProcess> ({
  qualityItemId: undefined,
  processId: undefined,
})
const relateLoading = ref<boolean>(false)
const relatePagination  = reactive({
  page: 1,
  pageSize: 2,
  itemCount: 0,
  showSizePicker: true,
  pageSizes: [10, 20, 50]
})



//上传文件
const fileList = ref<UploadFileInfo[]>([])

//质检方案抽屉显示隐藏
const title = ref<string>()
const plansShow = ref<Boolean>(false)
const sysFileList = ref<SysFile>([])


// 搜索表单
const searchForm = reactive({
  name: '',
})

// 表格数据
const tableData = ref<QcItem[]>([])
const loading = ref(false)
const selectedIds = ref<number[]>([])
const pagination = reactive({
  page: 1,
  pageSize: 10,
  itemCount: 0,
  showSizePicker: true,
  pageSizes: [10, 20, 50]
})

// 弹窗
const modalVisible = ref(false)
const modalTitle = ref('')
const importModalVisible = ref(false)
const formRef = ref()
const defaultFormData: QcItem = {
  name: '',
  spec: '',
  plans: '',
  desc: '',
  createby: undefined,
}
const formData = reactive<QcItem>({ ...defaultFormData })

// 字典选项（下拉框/单选框/复选框关联字典时使用）

// 表单校验规则
const formRules = {
}

// 表格列
const columns: DataTableColumns<QcItem> = [
  { type: 'selection' },
  { title: '质检项名称', key: 'name' },
  { title: '质检规格', key: 'spec' },
  { title: '质检方案', key: 'plans',
    render(row) {
        return h(NButton,{size:"small", onClick: () => handlePlans(row)},{
            default: () => ['下载方案']
        })
    }
  },
  { title: '质检描述', key: 'description' },
  { title: '创建人', key: 'userName' },
  { title: '创建时间', key: 'createTime', width: 180 },
  { title: '修改时间', key: 'updateTime', width: 180 },
  {
    title: '操作',
    key: 'actions',
    width: 140,
    fixed: 'right',
    render(row) {
      return h('div', { style: { display: 'flex', alignItems: 'center', gap: '8px', flexWrap: 'nowrap' } }, [
        h(NButton, { size: 'small', quaternary: true, onClick: () => handleEdit(row) }, {
          default: () => [h(NIcon, null, { default: () => h(CreateOutline) }), ' 编辑']
        }),
        h(NButton, { size: 'small', quaternary: true, type: 'error', onClick: () => handleDelete(row) }, {
          default: () => [h(NIcon, null, { default: () => h(TrashOutline) }), ' 删除']
        }),
        h(NButton, { size: 'small', quaternary: true,  onClick: () => handleProccess(row) }, {
          default: () => [' 关联工序']
        })
      ])
    }
  }
]

// 加载数据
async function loadData() {
  loading.value = true
  try {
    const res = await qcItemApi.page({
      page: pagination.page,
      pageSize: pagination.pageSize,
      name: searchForm.name || undefined,
    })
    tableData.value = res.list
    pagination.itemCount = res.total
  } finally {
    loading.value = false
  }
}

// 搜索
function handleSearch() {
  pagination.page = 1
  loadData()
}

// 重置
function handleReset() {
  searchForm.name = ''

  handleSearch()
}

// 分页
function handlePageChange(page: number) {
  pagination.page = page
  loadData()
}

function handlePageSizeChange(pageSize: number) {
  pagination.pageSize = pageSize
  pagination.page = 1
  loadData()
}

// 选择
function handleCheck(keys: Array<string | number>) {
  selectedIds.value = keys as number[]
}

// 新增
function handleAdd() {
  modalTitle.value = '新增质检项表'
  Object.assign(formData, defaultFormData)
  modalVisible.value = true
}

// 编辑
async function handleEdit(row: QcItem) {
  
  modalTitle.value = '编辑质检项表'
  const res = await qcItemApi.getPlansFiles({ plans: row.plans }) 
 
    const fileArr = res || []
    
    fileList.value = fileArr.map(item => {
            return {
            id: item.id,
            name: item.originalName,
            file: null, // 回显已有文件，无原生File对象填空
            size: item.fileSize,
            type: item.fileType === 'pdf' 
                ? 'application/pdf' 
                : 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
            status: 'finished', // 固定为已完成
            response: item, // 存储后端完整文件信息，下载时取用
            url: item.url // 文件预览/下载地址
            } as UploadFileInfo
    })  
    

  Object.assign(formData, row)
  if (formData.createTime && typeof formData.createTime === 'string') {
    formData.createTime = new Date(formData.createTime.replace(' ', 'T')).getTime()
  }
  if (formData.updateTime && typeof formData.updateTime === 'string') {
    formData.updateTime = new Date(formData.updateTime.replace(' ', 'T')).getTime()
  }
  modalVisible.value = true
}

// 提交
async function handleSubmit() {
     
  let plans = []
  console.log(fileList.value);
  
  fileList.value.forEach(item=>{
    plans.push(item.url)
  })

  console.log();
  
  formData.plans = plans.join(",")
  
  console.log(formData);
  
  await formRef.value?.validate()
  
  try {
    const submitData = { ...formData } as QcItem
    if (typeof submitData.createTime === 'number') {
      submitData.createTime = new Date(submitData.createTime).toISOString().slice(0, 19).replace('T', ' ')
    }
    if (typeof submitData.updateTime === 'number') {
      submitData.updateTime = new Date(submitData.updateTime).toISOString().slice(0, 19).replace('T', ' ')
    }
    if (submitData.id) {
      await qcItemApi.update(submitData)
      message.success('修改成功')
    } else {
      await qcItemApi.create(submitData)
      message.success('新增成功')
    }
    modalVisible.value = false
    loadData()
  } catch (error) {
    // 错误已在拦截器处理
  }
}

// 删除
function handleDelete(row: QcItem) {
  dialog.warning({
    title: '提示',
    content: '确定要删除该记录吗？',
    positiveText: '确定',
    negativeText: '取消',
    onPositiveClick: async () => {
      try {
        await qcItemApi.delete([row.id!])
        message.success('删除成功')
        loadData()
      } catch (error) {
        // 错误已在拦截器处理
      }
    }
  })
}

// 批量删除
function handleBatchDelete() {
  dialog.warning({
    title: '提示',
    content: `确定要删除选中的 ${selectedIds.value.length} 条记录吗？`,
    positiveText: '确定',
    negativeText: '取消',
    onPositiveClick: async () => {
      try {
        await qcItemApi.delete(selectedIds.value)
        message.success('删除成功')
        selectedIds.value = []
        loadData()
      } catch (error) {
        // 错误已在拦截器处理
      }
    }
  })
}

// 导出
async function handleExport() {
  try {
    const params: Record<string, any> = {}
    if (selectedIds.value.length > 0) params.ids = selectedIds.value
    if (searchForm.id != null) params.id = searchForm.id
    if (searchForm.name) params.name = searchForm.name
    const blob = await qcItemApi.export(params)
    const url = window.URL.createObjectURL(blob)
    const link = document.createElement('a')
    link.href = url
    link.download = '质检项表数据.xlsx'
    link.click()
    window.URL.revokeObjectURL(url)
  } catch (error) {
    // 错误已在拦截器处理
  }
}

// 下载导入模板
async function handleDownloadTemplate() {
  try {
    const blob = await qcItemApi.downloadTemplate()
    const url = window.URL.createObjectURL(blob)
    const link = document.createElement('a')
    link.href = url
    link.download = '质检项表导入模板.xlsx'
    link.click()
    window.URL.revokeObjectURL(url)
  } catch (error) {
    // 错误已在拦截器处理
  }
}

// 导入上传
async function handleImportUpload({ file }: UploadCustomRequestOptions) {
  if (!file.file) return
  try {
    const result = await qcItemApi.importData(file.file)
    if (result.fail > 0) {
      dialog.warning({
        title: '导入结果',
        content: `成功: ${result.success} 条，失败: ${result.fail} 条\n错误信息: ${(result.errors || []).join('\n') || '无'}`,
        positiveText: '确定'
      })
    } else {
      message.success(`导入成功，共 ${result.success} 条数据`)
      importModalVisible.value = false
    }
    loadData()
  } catch (error) {
    // 错误已在拦截器处理
  }
}

// 加载字典选项
async function loadDictOptions() {
}


//文件上传前校验
const handleBeforeUpload = async (data: {
  file: UploadFileInfo
  fileList: UploadFileInfo[]
})=> {
    const file = data.file
    //文件格式校验
    const allowMime = [
        'application/pdf',
        'application/msword',
        'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
    ]
    
    
    if(!allowMime.includes(file.type)){
        message.error(`仅支持上传 PDF、Word（doc/docx）格式文件，当前文件：${file.name}`)
        return false // 拦截上传
    }

    //限制文件大小20MB
    const maxSize = 20 * 1024 *1024
    if(file.file.size > maxSize) {
        message.error(`文件${file.name}超出20MB限制`)
        return false;
    }
    try {
        const res = await qcItemApi.uploadFile(file.file)
        message.success(`${file.name} 上传成功`)
        //保存url路径 
        file.url = res.url    
        return true
    } catch (err) {
        message.error(`${file.name} 上传失败`)
         return false
    }
   
}
//文件清除
const handleRemove = (data: {
  file: UploadFileInfo
  fileList: UploadFileInfo[]
}) =>{
    fileList.value = fileList.value.filter(item => item.id !== data.file.id)
}

//显示抽屉
const handlePlans = async (row) => {
    title.value = row.name + "质检方案"
    plansShow.value = true

    try {
        // 打印入参，确认传给后端的 plans 是否有值
        console.log('请求参数 plans：', row.plans)
        const res = await qcItemApi.getPlansFiles({ plans: row.plans }) 
        sysFileList.value = res
        console.log('接口返回成功数据：', res);
    } catch (err) {
        // 打印完整错误，看是401/404/500/参数问题
        console.error('请求失败详情：', err)
        // 提取后端返回的提示信息
        const msg = err || '获取文件列表接口异常'
        message.error(msg)
    }
    
}

//计算文件大小
function calculateSize(fileSize) {
    if (fileSize === 0) return '0 B'
    const unitArr = ['B', 'KB', 'MB', 'GB']
    let size = fileSize
    let index = 0
    while (size >= 1024 && index < unitArr.length - 1) {
        size /= 1024
        index++
    }
    return size.toFixed(2) + ' ' + unitArr[index]
}

//下载文件
async function downloadPlans(row: any) {
  try {
    // res 现在是 axios完整响应 { data:Blob, headers }
    const res = await fileApi.downloadPlanFile(row.id)
    const blobData = res // 真实二进制Blob
    let fileName = ''
    let ext = ''

      const nameArr = row.url.split('/')
      const fullName = nameArr.pop()!

      const extMatch = fullName.match(/\.(pdf|doc|docx)$/i)
      if (extMatch) ext = extMatch[1].toLowerCase()
      fileName = `${row.originalName }`

    // 关键：直接使用接口返回的Blob，不要new Blob重复包装
    const url = URL.createObjectURL(blobData)
    const a = document.createElement('a')
    a.href = url
    a.download = fileName
    document.body.appendChild(a)
    a.click()

    // 释放内存
    URL.revokeObjectURL(url)
    document.body.removeChild(a)
    message.success(`${fileName} 下载成功`)
  } catch (err) {
    console.error('下载失败', err)
    message.error('文件下载失败，请重试')
  }
}

//关联工序抽屉
function handleProccess(row) {
  relateLoading.value = true
  processModel.value = true
  qcProcessRelate.qualityItemId  = row.id
  getProcessList(row.id)
}


async function getProcessList(id) {
  
  try {
    const res =   await basicProcessPlanApi.list({
                  id:id,
                  page:relatePagination.page,
                  pageSize:relatePagination.pageSize
    });
    processList.value = res.records
    relatePagination.itemCount = res.total
    //回显 
    selectedProcessIds.value = processList.value.filter(item=> item.isBind).map(item => item.id)    
    relateLoading.value = false
  } catch (error) {
     console.log("异常信息:"+error);
     message.error("获取关联异常")
     relateLoading.value = false
  }
 
  
}

//取消/全选
const isAllCheck = computed({
  get() {
    return processList.value.length > 0 && selectedProcessIds.value.length === processList.value.length
  },
  set(val) {
    if(val) {
      selectedProcessIds.value = processList.value.map(item=> item.id)
    }else{
      selectedProcessIds.value = []
    }
  }
})

const handleAllCheck = (val:boolean) => {
  isAllCheck.value = val
}
function rowKey(row: RowData) {
  return row.id
}

const handleUpateCheck = async (keys: Array<string | number>,) =>{  
  selectedProcessIds.value = keys
 
  qcProcessRelate.processIds = selectedProcessIds.value
  qcProcessRelate.page = relatePagination.page
  qcProcessRelate.pageSize = relateLoading.pageSize
  try{
      await qcitemProcessApi.create(qcProcessRelate);
      message.success("关联成功")
      getProcessList(qcProcessRelate.qualityItemId)
  }catch(error) {
    message.error("关联失败")
  }
}

const processColumns: DataTableColumns<BasicProcessPlan> = [
  { type: 'selection' },
  { title:"工序名称",key:"name"},
  { title: "关联状态",key:"isBind",
     render(row) {
      const val = row.isBind;
      if (val) {
        return h(NTag, { type: "success" }, { default: () => "已关联" });
      } else {
        return h(NTag, { type: "default" }, { default: () => "未关联" });
      }
  }
  }
]

// 分页
function handleRelatePageChange(page: number) {
  relatePagination.page = page
  getProcessList(qcProcessRelate.qualityItemId)
}

function handleRelatePageSizeChange(pageSize: number) {
  relatePagination.pageSize = pageSize
  relatePagination.page = 1
  getProcessList(qcProcessRelate.qualityItemId)
}




onMounted(() => {
  loadData()
  loadDictOptions()
})
</script>

<style scoped>
.search-form {
  margin-bottom: 16px;
}

.table-toolbar {
  margin-bottom: 16px;
}
.menu-tree-wrapper {
  width: 100%;
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid #E5E7EB;
  border-radius: 8px;
  padding: 12px;
}
</style>