import { useState } from 'react'
import { Card, Icon, Menu, Text } from '../../src'
import { Demo } from '../components/Demo'
import { PropsTable } from '../components/PropsTable'
import { Section } from '../components/Section'

const ITEMS = [
  {
    key: 'content',
    label: '内容',
    icon: <Icon name="folder_more_line" />,
    children: [
      { key: 'recommend', label: '常用推荐' },
      { key: 'movie', label: '推荐电影' },
      { key: 'ces', label: 'CES 现场报道' },
    ],
  },
  {
    key: 'system',
    label: '系统',
    icon: <Icon name="settings_1_line" />,
    children: [
      { key: 'profile', label: '资料' },
      { key: 'data', label: '内容库' },
    ],
  },
  { key: 'about', label: '关于', icon: <Icon name="question_line" /> },
]

export function MenuSection() {
  const [active, setActive] = useState('recommend')

  return (
    <Section
      id="menu"
      title="菜单"
      api="Menu"
      desc="侧栏菜单：一层折叠 + 两级结构，数据无关——业务树由页面转成 items。含 activeKey 的父级会自动展开。"
    >
      <Demo
        title="基础用法"
        desc="父级是折叠按钮（aria-expanded），子项是导航项（aria-current=page）。"
        code={`const [active, setActive] = useState('recommend')

<Menu items={ITEMS} activeKey={active} onSelect={setActive} />`}
      >
        <Card padding="sm" style={{ width: 240 }}>
          <Menu items={ITEMS} activeKey={active} onSelect={setActive} />
        </Card>
        <Text size="sm" tone="muted">
          当前：{active}
        </Text>
      </Demo>

      <Demo
        title="默认展开"
        desc="defaultOpenKeys 指定初始展开的父级；用户手动折叠后以用户操作为准。"
        code={`<Menu items={ITEMS} activeKey="data" onSelect={() => {}} defaultOpenKeys={['system']} />`}
      >
        <Card padding="sm" style={{ width: 240 }}>
          <Menu items={ITEMS} activeKey="data" onSelect={() => undefined} defaultOpenKeys={['system']} />
        </Card>
      </Demo>

      <Demo
        title="行高"
        desc="默认 36px；需要更松的密度（如资料较多、点击目标更大）时传 itemHeight。"
        layout="column"
        code={`<Menu items={ITEMS} activeKey="data" onSelect={() => {}} itemHeight={44} />`}
      >
        <Card padding="sm" style={{ width: 240 }}>
          <Menu
            items={ITEMS}
            activeKey="data"
            onSelect={() => undefined}
            defaultOpenKeys={['system']}
            itemHeight={44}
          />
        </Card>
      </Demo>

      <PropsTable
        rows={[
          { name: 'items', type: 'MenuItem[]', required: true, desc: '{ key, label, icon?, children? }' },
          { name: 'activeKey', type: 'string', desc: '当前选中项' },
          { name: 'onSelect', type: '(key: string) => void', required: true, desc: '选中回调' },
          { name: 'defaultOpenKeys', type: 'string[]', desc: '初始展开的父级 key' },
          { name: 'itemHeight', type: 'number', defaultValue: '36', desc: '一级菜单行高（px）' },
        ]}
      />
    </Section>
  )
}