<template>
  <div class="app-container">
    <!-- <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="标题" prop="bannerTitle">
        <el-input
          v-model="queryParams.bannerTitle"
          placeholder="请输入标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="图片地址" prop="url">
        <el-input
          v-model="queryParams.url"
          placeholder="请输入图片地址"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @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" size="mini" @click="handleAdd" v-hasPermi="['school-paper:banner:add']">新增轮播</el-button>
      </el-col>
      <!-- <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['school-paper:banner:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['school-paper:banner:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['school-paper:banner:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="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="主键id" align="center" prop="id" v-if="true"/> -->
      <el-table-column label="轮播图标题"  prop="bannerTitle" />
      <el-table-column label="轮播图"  prop="url">
        <template slot-scope="scope">
          <el-image style="width: 100px; height: 100px" :src="scope.url" :preview-src-list="scope.url">
        </el-image>
        </template>
      </el-table-column>
      <el-table-column label="是否启用"  prop="remark">
        <template slot-scope="scope">
          <el-switch v-model="scope.remark" active-color="#13ce66" inactive-color="#ff4949">
        </el-switch>
        </template>
    
      </el-table-column>
      <!-- <el-table-column label="状态：0正常，1删除" align="center" prop="status" /> -->
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)"
            v-hasPermi="['school-paper:banner:edit']">编辑</el-button>
          <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)"
            v-hasPermi="['school-paper:banner:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

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

    <!-- 添加或修改轮播图对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="标题" prop="bannerTitle">
          <el-input v-model="form.bannerTitle" placeholder="请输入标题" />
        </el-form-item>
        <el-form-item label="上传" prop="url">
          <imageUpload :limit="1" v-model="form.url" ref="refUpload" placeholder="请上传图片"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer" style="text-align: center;">
        <el-button @click="cancel">取 消</el-button>
        <el-button :loading="buttonLoading" type="primary" @click="submitForm">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listBanner, getBanner, delBanner, addBanner, updateBanner } from "@/api/school-paper/banner";

export default {
  name: "Banner",
  data() {
    return {
      // 按钮loading
      buttonLoading: false,
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 轮播图表格数据
      bannerList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        bannerTitle: undefined,
        url: undefined,
        status: undefined,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        id: [
          { required: true, message: "主键id不能为空", trigger: "blur" }
        ],
        bannerTitle: [
          { required: true, message: "标题不能为空", trigger: "blur" }
        ],
        url: [
          { required: true, message: "图片地址不能为空", trigger: "blur" }
        ],
        remark: [
          { required: true, message: "备注不能为空", trigger: "blur" }
        ],
        status: [
          { required: true, message: "状态：0正常，1删除不能为空", trigger: "change" }
        ],
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询轮播图列表 */
    getList() {
      this.loading = true;
      listBanner(this.queryParams).then(response => {
        this.bannerList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: undefined,
        bannerTitle: undefined,
        url: undefined,
        remark: undefined,
        status: undefined,
        createTime: undefined,
        createBy: undefined,
        updateTime: undefined,
        updateBy: undefined
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加轮播图";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.loading = true;
      this.reset();
      const id = row.id || this.ids
      getBanner(id).then(response => {
        this.loading = false;
        this.form = response.data;
        this.open = true;
        this.title = "修改轮播图";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          this.buttonLoading = true;
          if (this.form.id != null) {
            updateBanner(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            }).finally(() => {
              this.buttonLoading = false;
            });
          } else {
            addBanner(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            }).finally(() => {
              this.buttonLoading = false;
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除轮播图编号为"' + ids + '"的数据项？').then(() => {
        this.loading = true;
        return delBanner(ids);
      }).then(() => {
        this.loading = false;
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      }).finally(() => {
        this.loading = false;
      });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('school-paper/banner/export', {
        ...this.queryParams
      }, `banner_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
