<template>
  <el-collapse v-model="activeNames" @change="handleChange">
    <el-collapse-item name="1">
      <template slot="title">
        <i class="header-icon el-icon-info"></i>
        <span style="padding-left: 10px">搜索</span>
      </template>
      <transition>
        <el-form
          size="mini"
          :inline="true"
          :model="value"
          class="demo-form-inline">
          <el-row
            :gutter="20"
            v-for="(row, rowIndex) in conditionItems"
            :key="rowIndex">
            <el-col :span="8" v-for="(col, colIndex) in row" :key="colIndex">
              <el-form-item :label="col.label" label-width="100px">
                <keep-alive>
                  <component
                    :is="col.type"
                    v-model="formInline[col.name]"
                    :placeholder="col.placeholder"
                    :multiple="col.multiple"
                    :defaultValue="col.defaultValue"
                    :options="col.options">
                  </component>
                </keep-alive>
              </el-form-item>
            </el-col>
          </el-row>
        </el-form>
      </transition>
      <web-button-group>
        <web-button type="primary" @click="handleQuery">查询</web-button>
        <web-button @click="onSubmit">重置</web-button>
        <web-button v-if="condition.length > 6" type="text" @click="searchMore">+ 更多选项</web-button>
      </web-button-group>
    </el-collapse-item>
  </el-collapse>
</template>
<script>
export default {
  name: "WebSearch",
  props: {
    value: {
      type: Object,
      default: () => {},
    },
    condition: {
      type: Array,
      default: () => [],
    },
  },
  // model: {
  //   props: 'value',
  //   event: 'input'
  // },
  computed: {
    conditionItems() {
      let formItems = [];
      if (this.isShowAll) {
        formItems = this.devideArr(this.condition, 3);
      } else {
        formItems = this.devideArr(this.condition.slice(0, 6), 3);
      }
      return formItems;
    },
  },
  data() {
    return {
      mode: this.value,
      isShowAll: false,
      formInline: {},
      activeNames: ["1"],
    };
  },
  watch: {
    formInline: {
      handler(newVal, oldVal) {
        console.log(newVal);
        this.$emit("input", newVal);
      },
      deep: true,
    },
  },
  created() {
    this.handleInit();
  },
  methods: {
    devideArr(arr, num) {
      let index = 0;
      let items = [];
      // if (arr.length % 2 === 1) {
      //   arr = arr.push({})
      // }
      while (index < arr.length) {
        if (arr[index] && arr[index]["singleFormItem"]) {
          items.push(arr.slice(index, (index += 1)));
        } else {
          items.push(arr.slice(index, (index += num)));
        }
      }
      return items;
    },
    handleInit() {
      // this.condition.forEach(item => {
      //   this.formInline[item.name] = item.defaultValue || ''
      // })
    },
    searchMore() {
      this.isShowAll = !this.isShowAll;
    },
    handleQuery() {
      this.$emit("handleSearch", this.formInline);
    },
    onSubmit() {
      console.log("submit!");
    },
    handleChange(val) {
      console.log(val);
    },
  },
};
</script>
<style lang="scss">
@import url("../index.scss");
</style>