<!--
 * @Date: 2022-08-30 14:32:11
 * @LastEditors: hookehuyr hookehuyr@gmail.com
 * @LastEditTime: 2024-11-21 13:34:36
 * @FilePath: /data-table/src/components/AreaPickerField/index.vue
 * @Description: 省市区选择控件
-->
<template>
  <div v-if="HideShow" class="area-picker-field">
    <div class="label">
      <span v-if="item.component_props.disabled_show"><van-icon name="https://cdn.ipadbiz.cn/custom_form/icon/closed-eye1.png" /></span>
      <span v-if="item.component_props.required" style="color: red">*&nbsp;</span>
      <span :class="[ReadonlyShow ? 'readonly-show' : '']">{{ item.component_props.label }}</span>
    </div>
    <van-field :name="item.key" :rules="rules" style="padding: 0;">
      <template #input>
        <my-component @active="onActive" />
      </template>
    </van-field>
  </div>
</template>

<script setup>
import { useRoute } from "vue-router";
import MyComponent from './MyComponent.vue';
import _ from 'lodash'
import Cookies from 'js-cookie';

const $route = useRoute();
const props = defineProps({
  item: Object,
});

// 只读显示-流程模式
const ReadonlyShow = computed(() => {
  return ($route.query.page_type === 'flow' || $route.query.page_type === 'edit') && !props.item.component_props.readonly;
});

if (props.item.component_props.default) { // 存在默认值时业务逻辑
  if (!props.item.component_props.default?.city_code) { // 默认值为空
    props.item.component_props.default.picker_value = '';
    props.item.component_props.default.input_value = '';
    props.item.city_code = '';
  } else {
    props.item.component_props.default.picker_value = `${props.item.component_props.default.province} ${props.item.component_props.default.city} ${props.item.component_props.default.district}`;
    props.item.component_props.default.input_value = props.item.component_props.default.street;
    props.item.city_code = props.item.component_props.default.city_code;
  }
} else { // 默认值为空, 处理数据显示问题 - 详细地址不填写可能存在undefined
  props.item.component_props.default = {
    picker_value: '',
    input_value: '',
    city_code: '',
  }
}


// 注入子组件属性
provide('props', props.item);
// 隐藏显示
const HideShow = computed(() => {
  return !props.item.component_props.disabled
});

// 规则校验
const required = props.item.component_props.required;
const show_street = !props.item.component_props.no_street; // 显示详细地址
const validator = (val) => {
  if (required && show_street && (!val.picker_value || !val.input_value)) {
    return false;
  } else if (required && !show_street && !val.picker_value) {
    return false;
  } else {
    return true;
  }
};
// 错误提示文案
const validatorMessage = (val, rule) => {
  if (required && show_street && (!val.picker_value || !val.input_value)) {
    return "必填项不能为空";
  } else if (required && !show_street && !val.picker_value) {
    return "必填项不能为空";
  }
};
const rules = [{ validator, message: validatorMessage }];

const isJSON = (value) => {
  try {
    JSON.parse(value);
    return true;
  } catch (e) {
    return false;
  }
}

// 子组件通信，适配规则触发
const onActive = (val) => {
  // 适配cookie保存未完成表单
  const currentValue = JSON.stringify(val);
  const existingCookie = Cookies.get($route.query.code);

  if (existingCookie) {
    // 如果Cookie存在，更新它
    let obj = JSON.parse(existingCookie);
    if (val.city_code) { // 修改了
      let temp = null;
      if (isJSON(obj[props.item.key])) {
        temp = JSON.parse(obj[props.item.key]);
        temp.city_code = val.city_code;
        temp.province = val.province;
        temp.city = val.city;
        temp.district = val.district;
      } else {
        temp = {
          city_code: val.city_code,
          province: val.province,
          city: val.city,
          district: val.district,
          street: val.street,
        };
      }
      obj[props.item.key] = JSON.stringify(temp); // 替换掉旧值
    } else { // 只修改了地址
      let temp = JSON.parse(obj[props.item.key]);
      temp.street = val.street;
      obj[props.item.key] = JSON.stringify(temp); // 替换掉旧值
    }
    Cookies.set($route.query.code, JSON.stringify(obj), { expires: 1 });
  } else {
    // 如果Cookie不存在，新增它
    Cookies.set($route.query.code, JSON.stringify({ [props.item.key]: currentValue }), { expires: 1 });
  }
};
</script>

<style lang="less" scoped>
.area-picker-field {
  .label {
    padding: 1rem 1rem 0 1rem;
    font-size: 0.9rem;
    font-weight: bold;
  }
}

:deep(.van-field__error-message) {
  padding-left: 1rem;
}

</style>