<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" label-width="68px">
      <el-form-item label="规格名称" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入规格名称"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="规格别名" prop="nickName">
        <el-input
          v-model="queryParams.nickName"
          placeholder="请输入规格别名"
          clearable
          size="small"
          @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"
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['goods:spec:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['goods:spec:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['goods:spec:remove']"
        >删除</el-button>
      </el-col>

    </el-row>

    <el-table v-loading="loading" :data="specList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="主键id" align="center" prop="id" />
      <el-table-column label="规格名称" align="center" prop="name" />
      <el-table-column label="规格别名" align="center" prop="nickName" />
      <el-table-column label="创建者名称" align="center" prop="createName" />

      <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="['goods:spec:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['goods:spec: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"
    />

    <!-- 添加或修改规格对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="800px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="规格名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入规格名称" />
        </el-form-item>
        <el-form-item label="规格别名" prop="nickName">
          <el-input v-model="form.nickName" placeholder="请输入规格别名" />
        </el-form-item>

         <el-form-item>
                  <span slot="label"><span class="labelImportant">*</span>规格值</span>
                  <el-button class="filter-item" size="medium" type="primary" icon="el-icon-plus"
                             @click="addSpecValue(form.id)">
                    添加规格值
                  </el-button>
                </el-form-item>
                <el-form-item>
                  <el-table
                    :data="form.specValues"
                    border
                    fit
                    highlight-current-row
                    style="line-height: 20px"
                  >
                    <el-table-column label="规格值名称">
                      <template slot-scope="scope">
                        <el-input v-model="scope.row.name" size="medium" class="filter-item"/>
                      </template>
                    </el-table-column>
                    <el-table-column label="排序">
                      <template slot-scope="scope">
                        <el-input-number v-model="scope.row.sort" size="small" controls-position="right" :min="1"
                                         :max="99"></el-input-number>
                      </template>
                    </el-table-column>
                    <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
                      <template slot-scope="scope">
                        <el-button type="text" icon="el-icon-delete" size="mini" @click.native.prevent="deleteSpecValue(scope.$index,scope.row.id)">
                          删除
                        </el-button>
                      </template>
                    </el-table-column>
                  </el-table>
                </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listSpec, getSpec, delSpec, addSpec, updateSpec, exportSpec } from "@/api/goods/spec";

export default {
  name: "Spec",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
        specList: null, // 列表数据集合
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 总条数
      total: 0,
      // 规格表格数据
      specList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
       form: { // 提交form表单
                id: '', // 规格id
                name: '', // 规格名称
                nickName: '', // 规格别名
                specValues: [{name: '', sort: ''}] // 规格值数组
              },
      // 查询参数
      queryParams: {
        pageNum: 0,
        pageSize: 10,
        name: undefined,
        nickName: undefined,

      },

      // 表单校验
      rules: {
        name: [
          { required: true, message: "规格名称不能为空", trigger: "blur" }
        ],

      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询规格列表 */
    getList() {
      this.loading = true;
      listSpec(this.queryParams).then(response => {
        this.specList = 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,
        name: undefined,
        nickName: undefined,


      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 0;
      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 = "添加规格";
      console.log(this.form.specValues)
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getSpec(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改规格";
      });
    },
    // 删除规格值
          deleteSpecValue(index, specValueId) {
            // 修改规格时并且specValueId不为空时（意思不是修改时新添加的规格值）才需要判断是否被商品使用
            if (this.DiaSpec != 1 && specValueId) {
              // 修改规格时删除规格值需要判断该规格值是否被商品使用
              isSpecValueCanDelete(specValueId).then(res => {
                if (res) {
                  this.form.specValues.splice(index, 1)
                } else {
                  this.$message({
                    message: '商品已经使用规格值不能删除!',
                    type: 'error'
                  })
                }
              })
            } else {
              this.form.specValues.splice(index, 1)
            }
          },
     // 新增规格值
          addSpecValue(specId) {
            // 修改规格时并且specId不为空时，给规格值赋值specId
            if (this.title == "修改规格" && specId) {
              this.form.specValues.push({name: '', sort: '', specId: specId})
            } else {
              this.form.specValues.push({name: '', sort: ''})
            }
          },
          // 校验商品规格值
                validateSpecValue() {
                  let validateResult = true;
                  let errorMsg = '';
                  if (this.form.specValues.length == 0) {
                    validateResult = false;
                    errorMsg = '至少添加一个规格值';
                  } else {
                    for (var i = 0; i < this.form.specValues.length; i++) {

                      // 没有规格值名称
                      if (!this.form.specValues[i].name) {
                        validateResult = false;
                        errorMsg = '请填写规格值名称';
                        break;
                      }

                      //  校验规格值排序是否为数字
                      if (!(/^\d+$/.test(this.form.specValues[i].sort))) {
                        validateResult = false;
                        errorMsg = '规格值排序请输入数字';
                        break;
                      }
                    }
                  }

                  if (!validateResult) {
                    this.$message({
                      message: errorMsg,
                      type: 'error'
                    })
                  }
                  return validateResult;
                },
    /** 提交按钮 */
    submitForm: function() {
      this.$refs["form"].validate(valid => {
        if (valid && this.validateSpecValue()) {
          if (this.title == "修改规格") {
            updateSpec(this.form).then(response => {
              if (response.code === 200) {
                this.msgSuccess("修改成功");
                this.open = false;
                this.getList();
              }
            });
          } else {
            addSpec(this.form).then(response => {
              if (response.code === 200) {
                this.msgSuccess("新增成功");
                this.open = false;
                this.getList();
              }
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$confirm('是否确认删除规格编号为"' + ids + '"的数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return delSpec(ids);
        }).then(() => {
          this.getList();
          this.msgSuccess("删除成功");
        }).catch(function() {});
    },
    /** 导出按钮操作 */
    handleExport() {
      const queryParams = this.queryParams;
      this.$confirm('是否确认导出所有规格数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return exportSpec(queryParams);
        }).then(response => {
          this.download(response.msg);
        }).catch(function() {});
    }
  }
};
</script>
