<template>
  <div>
    <el-form-item label="占位内容">
      <el-input
        v-model="data.placeholder"
        clearable
        placeholder="占位内容"
      ></el-input>
    </el-form-item>
    <el-form-item label="默认值">
      <el-input v-model="data.value" clearable placeholder="默认值"></el-input>
    </el-form-item>
    <el-form-item label="字典">
      <el-select
        v-model="data.dicType"
        placeholder="选择字典"
        style="width: 100%"
        clearable
        filterable
        @change="dicTypeChange"
      >
        <el-option
          :label="item.name"
          :value="item.type"
          v-for="item in dictList"
          :key="item.id"
        ></el-option>
      </el-select>
    </el-form-item>
    <div class=" el-form-item--small el-form--label-top" style="padding: 13px">
      <strong class="el-form-item__label" style="padding: 0"
        >字典数据示例：</strong
      >
      <div class="el-form-item__content">
        <el-tree
          ref="tree"
          :data="data.dicData"
          default-expand-all
          draggable
          node-key="value"
          :expand-on-click-node="false"
        >
          <span class="custom-tree-node" slot-scope="{ node, data }">
            <span>
              <strong>{{ data.label }}</strong>
              <span> ({{ data.value }})</span>
            </span>
            <span>
              <!-- <el-button
                type="text"
                size="mini"
                icon="el-icon-plus"
                @click="handleNodeAdd(data)"
              ></el-button>
                             <el-button class="warning" type="text" size="mini" icon="el-icon-edit"
                                        @click="handleNodeEdit(data)"></el-button> -->
              <el-button
                class="danger"
                type="text"
                size="mini"
                icon="el-icon-delete"
                @click="handleNodeRemove(node, data)"
              ></el-button>
            </span>
          </span>
        </el-tree>
        <!-- <div style="margin-left: 22px">
          <el-button type="text" @click="handleParentNodeAdd"
            >添加父级
          </el-button>
        </div> -->
      </div>
    </div>
    <!-- <div class="el-form-item el-form-item--small el-form--label-top">
      <label class="el-form-item__label" style="padding: 0"
        >字典key配置：</label
      >
      <div class="el-form-item__content">
        <ul>
          <li v-for="(value, key) in data.props" :key="key">
            <span style="width: 50px">{{ key }}</span>
            <el-input
              size="mini"
              v-model="data.props[key]"
              placeholder="key配置"
            ></el-input>
          </li>
        </ul>
      </div>
    </div>
    <el-form-item v-if="data.dicOption == 'remote'" label="重新请求字典(crud)">
      <el-switch v-model="data.dicFlag"></el-switch>
    </el-form-item>
    <template v-if="data.type == 'tree'">
      <el-form-item label="当有子级时,是否可选择父级" label-width="200px">
        <el-switch v-model="data.parent"></el-switch>
      </el-form-item>
    </template>  -->
    <template v-if="data.type == 'cascader'">
      <el-form-item label="选项分隔符" label-width="100px">
        <el-input
          v-model="data.separator"
          clearable
          placeholder="选项分隔符"
        ></el-input>
      </el-form-item>
      <el-form-item label="是否显示选中值的完整路径" label-width="200px">
        <el-switch v-model="data.showAllLevels"></el-switch>
      </el-form-item>
      <el-form-item label="是否可搜索">
        <el-switch v-model="data.filterable"></el-switch>
      </el-form-item>
    </template>
    <el-form-item label="是否多选">
      <el-switch v-model="data.multiple"></el-switch>
    </el-form-item>
    <el-form-item label="是否禁用">
      <el-switch v-model="data.disabled"></el-switch>
    </el-form-item>
    <el-form-item label="是否可见">
      <el-switch v-model="data.display"></el-switch>
    </el-form-item>
    <el-form-item label="是否必填">
      <el-switch v-model="data.required"></el-switch>
    </el-form-item>

    <el-dialog
      :visible.sync="dialogVisible"
      :rules="dialogRules"
      :before-close="beforeClose"
    >
      <el-form ref="dialogForm" :model="dialogForm" label-width="80px">
        <el-form-item label="label">
          <el-input v-model="dialogForm.label" placeholder="label"></el-input>
        </el-form-item>
        <el-form-item label="value">
          <el-input
            v-model="dialogForm.value"
            placeholder="value"
            :type="this.dialogInputType"
          >
            <el-select
              v-model="dialogInputType"
              slot="append"
              placeholder="数据类型"
              style="width: 100px"
            >
              <el-option label="String" value="text"></el-option>
              <el-option label="Number" value="number"></el-option>
            </el-select>
          </el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="handleDialogAdd"
          v-if="dialogStatus == 'add'"
          >确 定</el-button
        >
        <!--        <el-button type="primary" @click="handleDialogUpdate" v-else>确 定</el-button>-->
      </span>
    </el-dialog>
  </div>
</template>
<script>
import { mapGetters } from "vuex"
export default {
  name: "config-tree",
  props: ["data"],
  data() {
    return {
      validator: {
        type: null,
        required: null,
        pattern: null,
        length: null,
      },
      dialogForm: {},
      dialogVisible: false,
      dialogRules: {
        label: { required: true, message: "请输入label" },
        value: { required: true, message: "请输入value" },
      },
      dialogStatus: "add",
      selectData: undefined,
      dialogInputType: "text",
      option: {
        column: [
          {
            type: "input",
            prop: "key",
            label: "key",
          },
          {
            type: "input",
            prop: "value",
            label: "value",
          },
        ],
      },
    }
  },
  computed: {
    ...mapGetters({
      dictList: ["dict/dictSet"],
      dictMap: ["dict/dictMap"],
    }),
  },
  methods: {
    dicTypeChange(type) {
      this.data.dicData = this.deepClone(this.dictMap[type])
    },
    generateRule() {
      const rules = []
      Object.keys(this.validator).forEach((key) => {
        if (this.validator[key]) rules.push(this.validator[key])
      })
      this.data.rules = rules
    },
    handleTabClick({ name }) {
      if (name == "remote" && !this.data.dicQueryConfig)
        this.data.dicQueryConfig = []
    },
    handleParentNodeAdd() {
      this.selectData = undefined
      this.dialogStatus = "add"
      this.dialogVisible = true
    },
    handleNodeAdd(data) {
      this.selectData = data
      this.dialogStatus = "add"
      this.dialogVisible = true
    },
    handleNodeRemove(node, data) {
      const parent = node.parent
      const children = parent.data.children || parent.data
      const index = children.findIndex((d) => d.id === data.id)
      children.splice(index, 1)
    },
    handleDialogAdd() {
      this.$refs.dialogForm.validate((valid) => {
        if (valid) {
          const { label, value } = this.dialogForm
          const node = this.$refs.tree.getNode(value)
          if (node) this.$message.error("value重复")
          else {
            const data = this.selectData
            const newNode = {
              label,
              value:
                this.dialogInputType == "number" ? new Number(value) : value,
            }
            if (data) {
              if (!data.children) this.$set(data, "children", [])
              data.children.push(newNode)
            } else {
              this.$set(this.data.dicData, this.data.dicData.length, newNode)
            }
            this.beforeClose()
          }
        }
      })
    },
    beforeClose() {
      this.$refs.dialogForm.clearValidate()
      this.dialogForm = {}
      this.dialogVisible = false
    },
  },
  watch: {
    "data.required": function (val) {
      if (val)
        this.validator.required = {
          required: true,
          message: `请选择${this.data.label}`,
        }
      else this.validator.required = null

      this.generateRule()
    },
    "data.multiple": function (val) {
      if (val) this.data.defaultValue = []
      else delete this.data.defaultValue
    },
  },
}
</script>
<style lang="scss" scoped>
.custom-tree-node {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  padding-right: 8px;
}
</style>