import { Layout, Menu, Button, Popconfirm, Avatar, theme } from 'antd'
import { MenuFoldOutlined, MenuUnfoldOutlined, LogoutOutlined, UserOutlined } from '@ant-design/icons'
import { useNavigate, useLocation, Outlet } from 'react-router-dom'
import { routes } from '@/router/routes'
import { useAppStore } from '@/store/app'
import { useUserStore } from '@/store/user'
import type { MenuProps } from 'antd'

const { Sider, Header, Content } = Layout

const SIDER_WIDTH = 220
const SIDER_COLLAPSED_WIDTH = 64
const HEADER_HEIGHT = 64

// 将 RouteConfig 转换为 antd Menu 的 items 格式
const menuItems: MenuProps['items'] = routes
  .filter(r => !r.hideInMenu)
  .map(r => ({
    key: r.path,
    icon: r.icon,
    label: r.label,
    children: r.children
      ?.filter(c => !c.hideInMenu)
      .map(c => ({
        key: c.path,
        icon: c.icon,
        label: c.label,
      })),
  }))

function BasicLayout() {
  const navigate = useNavigate()
  const location = useLocation()
  const { token } = theme.useToken()

  // app store：侧边栏折叠状态
  const collapsed = useAppStore(s => s.siderCollapsed)
  const setSiderCollapsed = useAppStore(s => s.setSiderCollapsed)
  const toggleSider = useAppStore(s => s.toggleSider)

  // user store：登出、用户信息
  const logout = useUserStore(s => s.logout)
  const userInfo = useUserStore(s => s.userInfo)

  const siderWidth = collapsed ? SIDER_COLLAPSED_WIDTH : SIDER_WIDTH

  const handleMenuClick: MenuProps['onClick'] = ({ key }) => {
    navigate(key)
  }

  const handleLogout = () => {
    logout()
    navigate('/login', { replace: true })
  }

  return (
    <Layout style={{ minHeight: '100vh' }}>
      {/* 固定侧边栏 */}
      <Sider
        collapsed={collapsed}
        width={SIDER_WIDTH}
        collapsedWidth={SIDER_COLLAPSED_WIDTH}
        breakpoint="md"
        onBreakpoint={broken => setSiderCollapsed(broken)}
        theme="light"
        style={{
          position: 'fixed',
          insetInlineStart: 0,
          top: 0,
          bottom: 0,
          overflowY: 'auto',
          overflowX: 'hidden',
          borderInlineEnd: `1px solid ${token.colorBorderSecondary}`,
          zIndex: 100,
        }}
      >
        {/* Logo 区域 */}
        <div
          style={{
            height: HEADER_HEIGHT,
            display: 'flex',
            alignItems: 'center',
            justifyContent: collapsed ? 'center' : 'flex-start',
            padding: collapsed ? 0 : '0 16px',
            overflow: 'hidden',
            borderBlockEnd: `1px solid ${token.colorBorderSecondary}`,
            flexShrink: 0,
          }}
        >
          <span
            style={{
              fontSize: 18,
              fontWeight: 700,
              color: token.colorPrimary,
              whiteSpace: 'nowrap',
            }}
          >
            {collapsed ? 'S' : 'SmartServe'}
          </span>
        </div>

        <Menu
          mode="inline"
          selectedKeys={[location.pathname]}
          items={menuItems}
          onClick={handleMenuClick}
          style={{ borderInlineEnd: 'none', paddingTop: 8 }}
        />
      </Sider>

      {/* 右侧主区域，留出侧边栏宽度 */}
      <Layout
        style={{
          marginInlineStart: siderWidth,
          transition: 'margin-inline-start 0.2s',
        }}
      >
        {/* 固定顶部标题栏 */}
        <Header
          style={{
            position: 'fixed',
            top: 0,
            insetInlineStart: siderWidth,
            insetInlineEnd: 0,
            height: HEADER_HEIGHT,
            display: 'flex',
            alignItems: 'center',
            gap: 12,
            padding: '0 24px 0 16px',
            background: token.colorBgContainer,
            borderBlockEnd: `1px solid ${token.colorBorderSecondary}`,
            zIndex: 99,
            transition: 'inset-inline-start 0.2s',
          }}
        >
          {/* 收起/展开按钮 */}
          <Button
            type="text"
            icon={collapsed ? <MenuUnfoldOutlined /> : <MenuFoldOutlined />}
            onClick={toggleSider}
            style={{ fontSize: 16, width: 36, height: 36 }}
          />

          {/* 当前页面标题 */}
          <span style={{ fontSize: 16, fontWeight: 600, color: token.colorText }}>
            {routes.find(r => r.path === location.pathname)?.label ?? ''}
          </span>

          {/* 右侧操作区 */}
          <div style={{ marginInlineStart: 'auto', display: 'flex', alignItems: 'center', gap: 8 }}>
            {/* 用户昵称 */}
            <Avatar
              size="small"
              src={userInfo?.avatar}
              icon={!userInfo?.avatar && <UserOutlined />}
              style={{ background: token.colorPrimary }}
            />
            <span style={{ color: token.colorText, fontSize: 14 }}>
              {userInfo?.nickname ?? ''}
            </span>

            <Popconfirm
              title="确认退出登录？"
              onConfirm={handleLogout}
              okText="退出"
              cancelText="取消"
              placement="bottomRight"
            >
              <Button type="text" icon={<LogoutOutlined />} style={{ color: token.colorTextSecondary }}>
                退出登录
              </Button>
            </Popconfirm>
          </div>
        </Header>

        {/* 内容区，撑开顶部空间 */}
        <Content
          style={{
            marginBlockStart: HEADER_HEIGHT,
            padding: 24,
            minHeight: `calc(100vh - ${HEADER_HEIGHT}px)`,
            background: token.colorBgLayout,
          }}
        >
          <Outlet />
        </Content>
      </Layout>
    </Layout>
  )
}

export default BasicLayout