"use client"

import Link from "next/link"
import { usePathname } from "next/navigation"
import { Home, Database, Target, BrainCircuit } from 'lucide-react' // 引入AI智能助手图标

const navItems = [
  { href: "/", icon: Home, label: "首页" },
  { href: "/data-platform", icon: Database, label: "数据中台" },
  { href: "/user-portrait", icon: Target, label: "画像" },
  { href: "/ai-assistant", icon: BrainCircuit, label: "AI助手" },
]

export default function BottomNav() {
  const pathname = usePathname()

  return (
    <nav className="fixed bottom-0 left-0 right-0 glass-nav safe-area-bottom z-50 mx-2 mb-2">
      <div className="flex justify-around items-center py-2">
        {navItems.map((item) => {
          const isActive = pathname === item.href || (item.href !== "/" && pathname.startsWith(item.href))

          return (
            <Link
              key={item.href}
              href={item.href}
              className={`flex flex-col items-center justify-center px-1 py-2 rounded-xl transition-all duration-300 min-w-0 flex-1 ${
                isActive ? "glass-heavy text-blue-600 scale-105" : "text-gray-600 hover:glass-light hover:text-blue-500"
              }`}
            >
              <item.icon className={`h-4 w-4 mb-1 ${isActive ? "text-blue-600" : ""}`} />
              <span className="text-xs font-medium truncate">{item.label}</span>
            </Link>
          )
        })}
      </div>
    </nav>
  )
}