<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="100px">
      <el-form-item label="轮播图名称" prop="bannerName">
        <el-input
            v-model="queryParams.bannerName"
            placeholder="请输入轮播图名称"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>
<!--      <el-form-item label="跳转链接" prop="linkUrl">
        <el-input
            v-model="queryParams.linkUrl"
            placeholder="请输入跳转链接"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>-->
      <el-form-item label="状态" prop="isActive">
        <el-select v-model="queryParams.isActive" placeholder="请选择状态" clearable>
          <el-option
              v-for="dict in banner_status"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="系统类型" prop="sysType">
        <el-select v-model="queryParams.sysType" placeholder="请选择系统类型" clearable>
          <el-option
              v-for="dict in banner_sys_type"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
          />
        </el-select>
      </el-form-item>
<!--      <el-form-item label="部门id" prop="deptId">
        <el-input
            v-model="queryParams.deptId"
            placeholder="请输入部门id"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="用户id" prop="userId">
        <el-input
            v-model="queryParams.userId"
            placeholder="请输入用户id"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>-->
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="Plus"
            @click="handleAdd"
            v-hasPermi="['logistics:banner:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="Edit"
            :disabled="single"
            @click="handleUpdate"
            v-hasPermi="['logistics:banner:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete"
            :disabled="multiple"
            @click="handleDelete"
            v-hasPermi="['logistics:banner:remove']"
        >删除</el-button>
      </el-col>
<!--      <el-col :span="1.5">
        <el-button
            type="warning"
            plain
            icon="Download"
            @click="handleExport"
            v-hasPermi="['logistics:banner:export']"
        >导出</el-button>
      </el-col>-->
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="bannerList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
<!--      <el-table-column label="轮播图id" align="center" prop="bannerId" />-->
      <el-table-column label="轮播图名称" align="center" prop="bannerName" />
      <el-table-column label="轮播图" align="center" prop="imageUrl" width="100">
        <template #default="scope">
          <img :src="scope.row.imageBase64 || ''" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="跳转链接" align="center" prop="linkUrl"  width="150" :show-overflow-tooltip="true"/>
<!--      <el-table-column label="排序" align="center" prop="sortOrder" />-->
      <el-table-column label="状态" align="center" prop="isActive">
        <template #default="scope">
          <dict-tag :options="banner_status" :value="scope.row.isActive"/>
        </template>
      </el-table-column>
      <el-table-column label="系统类型" align="center" prop="sysType">
        <template #default="scope">
          <dict-tag :options="banner_sys_type" :value="scope.row.sysType"/>
        </template>
      </el-table-column>
<!--      <el-table-column label="备注" align="center" prop="remark" />-->
<!--      <el-table-column label="部门id" align="center" prop="deptId" />-->
<!--      <el-table-column label="用户id" align="center" prop="userId" />-->
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.createTime) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['logistics:banner:edit']">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['logistics:banner:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
        v-show="total>0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
    />

    <!-- 添加或修改轮播图对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="bannerRef" :model="form" :rules="rules" label-width="120px">
        <el-form-item label="轮播图名称" prop="bannerName">
          <el-input v-model="form.bannerName" placeholder="请输入轮播图名称" />
        </el-form-item>
        <el-form-item label="轮播图" prop="imageUrl">
          <image-upload
              v-model="form.imageUrl"
              :limit="1"
              :preview-base64="form.imagePreviewBase64"
              @update:preview-base64="val => form.imagePreviewBase64 = val"
          />
        </el-form-item>
<!--        <el-form-item label="排序值" prop="sortOrder">
          <el-input v-model="form.sortOrder" placeholder="请输入排序值" />
        </el-form-item>-->
        <el-form-item label="状态" prop="isActive">
          <el-radio-group v-model="form.isActive">
            <el-radio
                v-for="dict in banner_status"
                :key="dict.value"
                :label="dict.value"
            >{{dict.label}}</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="系统类型" prop="sysType">
          <el-radio-group v-model="form.sysType">
            <el-radio
                v-for="dict in banner_sys_type"
                :key="dict.value"
                :label="dict.value"
            >{{dict.label}}</el-radio>
          </el-radio-group>
        </el-form-item>

        <el-form-item label="跳转链接" >
          <el-input v-model="form.linkUrl" placeholder="请输入跳转链接" />
        </el-form-item>
<!--        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" type="textarea" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="删除标志" prop="delFlag">
          <el-input v-model="form.delFlag" placeholder="请输入删除标志" />
        </el-form-item>
        <el-form-item label="部门id" prop="deptId">
          <el-input v-model="form.deptId" placeholder="请输入部门id" />
        </el-form-item>
        <el-form-item label="用户id" prop="userId">
          <el-input v-model="form.userId" placeholder="请输入用户id" />
        </el-form-item>-->
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Banner">
import { listBanner, getBanner, delBanner, addBanner, updateBanner } from "@/api/logistics/banner"
import { getFileBase64 } from "@/api/file" // 新增：下载接口

const { proxy } = getCurrentInstance()
const { banner_status, banner_sys_type } = proxy.useDict('banner_status', 'banner_sys_type')

const bannerList = ref([])
const open = ref(false)
const loading = ref(true)
const showSearch = ref(true)
const ids = ref([])
const single = ref(true)
const multiple = ref(true)
const total = ref(0)
const title = ref("")


const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    bannerName: null,
    imageUrl: null,
    linkUrl: null,
    isActive: null,
    sysType: null,
    deptId: null,
    userId: null
  },
  rules: {
    bannerName: [
      { required: true, message: "轮播图名称不能为空", trigger: "blur" }
    ],
    imageUrl: [
      { required: true, message: "图片路径不能为空", trigger: "blur" }
    ],
    linkUrl: [
      { required: true, message: "跳转链接不能为空", trigger: "blur" }
    ],
    isActive: [
      { required: true, message: "状态不能为空", trigger: "change" }
    ],
    sysType: [
      { required: true, message: "系统类型不能为空", trigger: "change" }
    ],
  }
})

const { queryParams, form, rules } = toRefs(data)

/** 查询轮播图列表 */
/** 查询轮播图列表 */
async function getList() {
  loading.value = true
  const response = await listBanner(queryParams.value)
  const rows = response.rows
  // 并发获取每个图片的 base64
  const promises = rows.map(async (item) => {
    if (item.imageUrl) {
      try {
        const base64 = await getFileBase64(item.imageUrl)
        item.imageBase64 = base64
      } catch (error) {
        console.error('获取图片Base64失败', error)
        item.imageBase64 = '' // 可设置默认图片
      }
    }
    return item
  })
  await Promise.all(promises)
  bannerList.value = rows
  total.value = response.total
  loading.value = false
}

// 取消按钮
function cancel() {
  open.value = false
  reset()
}

// 表单重置
function reset() {
  form.value = {
    bannerId: null,
    bannerName: null,
    imageUrl: null,
    imagePreviewBase64: null, // 重置
    linkUrl: null,
    sortOrder: null,
    isActive: null,
    sysType: null,
    remark: null,
    delFlag: null,
    createTime: null,
    updateTime: null,
    createBy: null,
    updateBy: null,
    deptId: null,
    userId: null
  }
  proxy.resetForm("bannerRef")
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1
  getList()
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef")
  handleQuery()
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.bannerId)
  single.value = selection.length != 1
  multiple.value = !selection.length
}

/** 新增按钮操作 */
function handleAdd() {
  reset()
  open.value = true
  title.value = "添加轮播图"
}

/** 修改按钮操作 */
async function handleUpdate(row) {
  reset()
  const _bannerId = row.bannerId || ids.value
  const response = await getBanner(_bannerId)
  form.value = response.data
  // 如果已有图片，获取其 base64 用于预览
  if (form.value.imageUrl) {
    try {
      const base64 = await getFileBase64(form.value.imageUrl)
      form.value.imagePreviewBase64 = base64
    } catch (error) {
      console.error('获取预览图片失败', error)
    }
  }
  open.value = true
  title.value = "修改轮播图"
}
/** 提交按钮 */
function submitForm() {
  proxy.$refs["bannerRef"].validate(valid => {
    if (valid) {
      if (form.value.bannerId != null) {
        updateBanner(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功")
          open.value = false
          getList()
        })
      } else {
        addBanner(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功")
          open.value = false
          getList()
        })
      }
    }
  })
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _bannerIds = row.bannerId || ids.value
  proxy.$modal.confirm('是否确认删除轮播图编号为"' + _bannerIds + '"的数据项？').then(function() {
    return delBanner(_bannerIds)
  }).then(() => {
    getList()
    proxy.$modal.msgSuccess("删除成功")
  }).catch(() => {})
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download('logistics/banner/export', {
    ...queryParams.value
  }, `banner_${new Date().getTime()}.xlsx`)
}

getList()
</script>
