<!--
  Copyright © 2026 Qiantong Technology Co., Ltd.
  qModel Model Platform(Open Source Edition)
   *
  License:
  Released under the Apache License, Version 2.0.
  You may use, modify, and distribute this software for commercial purposes
  under the terms of the License.
   *
  Special Notice:
  All derivative versions are strictly prohibited from modifying or removing
  the default system logo and copyright information.
  For brand customization, please apply for brand customization authorization via official channels.
   *
  More information: https://qmodel.qiantong.tech/business.html
   *
  ============================================================================
   *
  版权所有 © 2026 江苏千桐科技有限公司
  qModel 模型平台（开源版）
   *
  许可协议：
  本项目基于 Apache License 2.0 开源协议发布，
  允许在遵守协议的前提下进行商用、修改和分发。
   *
  特别说明：
  所有衍生版本不得修改或移除系统默认的 LOGO 和版权信息；
  如需定制品牌，请通过官方渠道申请品牌定制授权。
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  更多信息请访问：https://qmodel.qiantong.tech/business.html
-->

<template>
  <div v-if="!item.hidden">
    <template v-if="hasOneShowingChild(item.children, item) && (!onlyOneChild.children || onlyOneChild.noShowingChildren) && !item.alwaysShow">
      <app-link v-if="onlyOneChild.meta" :to="resolvePath(onlyOneChild.path, onlyOneChild.query)">
        <el-menu-item :index="resolvePath(onlyOneChild.path)" :class="{ 'submenu-title-noDropdown': !isNest }">
          <svg-icon :icon-class="onlyOneChild.meta.icon || (item.meta && item.meta.icon) || 'null'"/>
          <template #title><span class="menu-title" :title="hasTitle(onlyOneChild.meta.title)">{{ onlyOneChild.meta.title }}</span></template>
        </el-menu-item>
      </app-link>
    </template>

    <el-sub-menu v-else ref="subMenu" :index="resolvePath(item.path)" teleported>
      <template v-if="item.meta" #title>
        <svg-icon :icon-class="item.meta && item.meta.icon"/>
        <span class="menu-title" :title="hasTitle(item.meta.title)">{{ item.meta.title }}</span>
      </template>

      <sidebar-item
        v-for="(child, index) in item.children"
        :key="child.path + index"
        :is-nest="true"
        :item="child"
        :base-path="resolvePath(child.path)"
        class="nest-menu"
      />
    </el-sub-menu>
  </div>
</template>

<script setup>
import { isExternal } from '@/utils/validate'
import AppLink from './Link'
import { getNormalPath } from '@/utils/anivia.js'

const props = defineProps({
  // route object
  item: {
    type: Object,
    required: true
  },
  isNest: {
    type: Boolean,
    default: false
  },
  basePath: {
    type: String,
    default: ''
  }
})

const onlyOneChild = ref({});

function hasOneShowingChild(children = [], parent) {
  if (!children) {
    children = [];
  }
  const showingChildren = children.filter(item => {
    if (item.hidden) {
      return false
    } else {
      // Temp set(will be used if only has one showing child)
      onlyOneChild.value = item
      return true
    }
  })

  // When there is only one child router, the child router is displayed by default
  if (showingChildren.length === 1) {
    return true
  }

  // Show parent if there are no child router to display
  if (showingChildren.length === 0) {
    onlyOneChild.value = { ...parent, path: '', noShowingChildren: true }
    return true
  }

  return false
};

function resolvePath(routePath, routeQuery) {
  if (isExternal(routePath)) {
    return routePath
  }
  if (isExternal(props.basePath)) {
    return props.basePath
  }
  if (routeQuery) {
    let query = JSON.parse(routeQuery);
    return { path: getNormalPath(props.basePath + '/' + routePath), query: query }
  }
  return getNormalPath(props.basePath + '/' + routePath)
}

function hasTitle(title){
  if (title.length > 5) {
    return title;
  } else {
    return "";
  }
}
</script>
