<!--
 * @Date: 2022-09-14 14:44:30
 * @LastEditors: hookehuyr hookehuyr@gmail.com
 * @LastEditTime: 2022-11-21 16:00:36
 * @FilePath: /data-table/src/components/IdentityField/index.vue
 * @Description: 身份证输入控件
-->
<template>
  <div class="identity-page">
    <div class="label">
      {{ item.component_props.label
      }}<span v-if="item.component_props.required">&nbsp;*</span>
    </div>
    <van-field
      v-model="item.value"
      :name="item.name"
      :placeholder="item.component_props.placeholder"
      :rules="rules"
      :required="item.component_props.required"
      readonly
      @touchstart.stop="openKeyboard($event)"
      :border="false"
    >
    </van-field>
    <van-number-keyboard
      v-model="item.value"
      :show="show"
      extra-key="X"
      close-button-text="完成"
      @blur="blurKeyboard()"
      @input="onInput"
      @delete="onDelete"
    />
  </div>
</template>

<script setup>
const props = defineProps({
  item: Object,
});

const show = ref(false);

const openKeyboard = (e) => {
  show.value = true;
  // 键盘上移动
  const target_to_view_height = window.innerHeight - e.target.getBoundingClientRect().y; // 元素到适口高度
  let scroll_height = "";
  if (target_to_view_height < 244) {
    scroll_height =
      window.innerHeight -
      e.target.getBoundingClientRect().y -
      e.target.getBoundingClientRect().height +
      244;
    document.body.style.paddingBottom = scroll_height + "px";
    document.documentElement.scrollTop = scroll_height;
  }
};
const blurKeyboard = () => {
  show.value = false;
  document.body.style.paddingBottom = "0";
};

// 校验函数返回 true 表示校验通过，false 表示不通过
// 身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X
const validator = (val) => {
  if (!props.item.component_props.required) {
    // 非必填
    return true;
  } else {
    return /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(val);
  }
};
// 错误提示文案
const validatorMessage = (val, rule) => {
  if (!val) {
    return "身份证号码不能为空";
  } else if (!/(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(val)) {
    return "请输入正确身份证号码";
  }
};
const rules = [{ validator, message: validatorMessage }];

const onInput = (value) => {};
const onDelete = () => {};
</script>

<style lang="less" scoped>
.identity-page {
  .label {
    padding: 1rem 1rem 0 1rem;
    font-size: 0.9rem;
    font-weight: bold;
    span {
      color: red;
    }
  }
}
</style>