<!--
 * @Date: 2022-08-30 11:34:19
 * @LastEditors: hookehuyr hookehuyr@gmail.com
 * @LastEditTime: 2024-07-19 16:55:56
 * @FilePath: /data-table/src/components/CheckboxField/index.vue
 * @Description: 多项选择控件
-->
<template>
  <div v-if="HideShow" class="checkbox-field-page">
    <div class="label">
      <span v-if="item.component_props.required" style="color: red">&nbsp;*</span>
      <span :class="[ReadonlyShow ? 'readonly-show' : '']">{{ item.component_props.label }}</span>
      <span v-if="item.component_props.max" style="color: gray">
        (最多可选数:&nbsp;{{ item.component_props.max }})
      </span>
    </div>
    <div v-if="item.component_props.note" class="note" v-html="item.component_props.note" />
    <van-field :rules="item.rules" :border="false">
      <template #input>
        <van-checkbox-group v-model="checkbox_value" :direction="item.component_props.direction"
          :max="item.component_props.max" style="width: 100%">
          <div v-for="x in item.component_props.options" :key="x.title" class="checkbox-wrapper">
            <div v-if="item.component_props.readonly">
              <div v-if="checkbox_value.includes(x.value)" role="checkbox" class="van-checkbox van-checkbox--vertical" tabindex="0" aria-checked="true" data-v-3722f8ba="" style="margin-bottom: 0.25rem;"><div class="van-checkbox__icon van-checkbox__icon--square van-checkbox__icon--checked" style="font-size: 1rem;"><i class="van-badge__wrapper van-icon van-icon-success" style="border-color: rgb(194, 145, 95); background-color: rgb(194, 145, 95);"><!----><!----><!----></i></div><span class="van-checkbox__label">{{ x.title }}</span></div>
              <div v-else role="checkbox" class="van-checkbox van-checkbox--vertical" tabindex="0" aria-checked="false" data-v-3722f8ba="" style="margin-bottom: 0.25rem;"><div class="van-checkbox__icon van-checkbox__icon--square" style="font-size: 1rem;"><i class="van-badge__wrapper van-icon van-icon-success" style=""><!----><!----><!----></i></div><span class="van-checkbox__label">{{ x.title }}</span></div>
            </div>
            <van-checkbox v-else @click="onClick(x)" :name="x.title" icon-size="1rem" shape="square"
              :checked-color="themeVars.radioColor" style="margin-bottom: 0.25rem">{{ x.title }}</van-checkbox>
            <van-field v-if="checkbox_value.includes(x.value) && x.is_input" @blur="onBlur(x)" v-model="x.affix"
              label=" " label-width="5px" :placeholder="x.input_placeholder" :rules="x.input_required ? rules : ''"
              :required="x.input_required" :readonly="item.component_props.readonly" class="affix-input" />
          </div>
        </van-checkbox-group>
      </template>
    </van-field>
  </div>
</template>

<script setup>
import { styleColor } from "@/constant.js";
import { useRoute } from "vue-router";

const $route = useRoute();

const props = defineProps({
  item: Object,
});
// TAG: 自定义主题颜色
const themeVars = {
  radioColor: styleColor.baseColor,
};
onMounted(() => {
  // 默认值为数组
  props.item.value = props.item.component_props.default;
});
// 隐藏显示
const HideShow = computed(() => {
  return !props.item.component_props.disabled
})
// 只读显示-流程模式
const ReadonlyShow = computed(() => {
  return $route.query.page_type === 'flow' && props.item.component_props.readonly;
});

// 校验函数返回 true 表示校验通过，false 表示不通过
const required = props.item.component_props.required;
const validator = (val) => {
  if (required && !val) {
    return false;
  } else {
    return true;
  }
};
// 错误提示文案
const validatorMessage = (val, rule) => {
  if (required && !val) {
    return "补充信息不能为空";
  }
};
const rules = [{ validator, message: validatorMessage }];

const emit = defineEmits(["active"]);
const checkbox_value = ref(props.item.component_props.default);
const affix_value = ref({});

const onClick = (item) => {
  item.checked = !item.checked;
  handleEmit(item)
}
const onBlur = (item) => {
  handleEmit(item)
}
const handleEmit = (item) => {
  // 选中状态添加属性
  if (item.checked) {
    affix_value.value[item.value] = item.affix ? `${item.title}: ${item.affix}` : '';
  } else {
    // 为选中删除属性
    delete affix_value.value[item.value]
  }
  // 发送自定义数据结构
  props.item.value = { key: props.item.key, value: checkbox_value.value, affix: affix_value.value, type: "checkbox" };
  emit("active", props.item.value);
}
onMounted(() => {
  // TAG：默认值处理
  let arr = props.item.component_props.default;
  let hasColonSome = arr.some(item => item.includes(':')); // 检查是否有元素包含冒号
  if (hasColonSome) { // 带补充信息输入框
    // 提取冒号前的部分生成新的数组
    let titles = arr.map(item => {
      if (item.includes(':')) {
        return item.split(': ')[0]
      } else {
        return item
      }
    });
    // 生成对象
    let obj = {};
    arr.forEach(item => {
      if (item.includes(':')) {
        let parts = item.split(': ');
        obj[parts[0]] = (parts[1]);
      }
    });
    checkbox_value.value = titles;
    //
    props.item.component_props.options.forEach(item => {
      for (const key in obj) {
        if (item.value === key) {
          item.affix = obj[key]
        }
      }
    })
  } else { // 纯多选情况
    checkbox_value.value = arr;
  }

  // 同步数据结构中的checked属性
  props.item.component_props.options.forEach(item => {
    checkbox_value.value.forEach(x => {
      if (item.value === x) {
        item.checked = true;
        affix_value.value[item.value] = item.affix ? `${item.title}: ${item.affix}` : '';
      }
    })
  });

  // 发送自定义数据结构
  props.item.value = { key: props.item.key, value: checkbox_value.value, affix: affix_value.value, type: "checkbox" };
  emit("active", props.item.value);
})
</script>

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

  .note {
    font-size: 0.9rem;
    margin-left: 1rem;
    color: gray;
    padding-bottom: 0.5rem;
    white-space: pre-wrap;
  }

  .checkbox-wrapper {
    border: 1px solid #eaeaea;
    border-radius: 0.25rem;
    padding: 0.25rem 0.5rem;
    margin-bottom: 0.25rem;
  }
  .affix-input {
    border: 1px solid #eaeaea;
    border-radius: 0.25rem;
    padding: 0.25rem 0.5rem;
    margin-top: 0.5rem;
    margin-bottom: 0.25rem;
  }
}

:deep(.van-checkbox) {
  // border: 1px solid #eaeaea;
  // border-radius: 0.25rem;
  // padding: 0.25rem 0.5rem;
}
</style>