'use client'

import Link from 'next/link'
import { useState } from 'react'
import { NavLink } from './NavLink'
import { UserMenu } from './UserMenu'

// Icon components
const HomeIcon = () => (
  <svg className="w-5 h-5" fill="currentColor" viewBox="0 0 20 20">
    <path d="M10.707 2.293a1 1 0 00-1.414 0l-7 7a1 1 0 001.414 1.414L4 10.414V17a1 1 0 001 1h2a1 1 0 001-1v-2a1 1 0 011-1h2a1 1 0 011 1v2a1 1 0 001 1h2a1 1 0 001-1v-6.586l.293.293a1 1 0 001.414-1.414l-7-7z" />
  </svg>
)

const SearchIcon = () => (
  <svg className="w-5 h-5" fill="currentColor" viewBox="0 0 20 20">
    <path fillRule="evenodd" d="M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z" clipRule="evenodd" />
  </svg>
)

const PlaylistIcon = () => (
  <svg className="w-5 h-5" fill="currentColor" viewBox="0 0 20 20">
    <path d="M3 4a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zm0 4a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zm0 4a1 1 0 011-1h6a1 1 0 110 2H4a1 1 0 01-1-1zm11 3a2 2 0 100-4 2 2 0 000 4z" />
  </svg>
)

const UploadIcon = () => (
  <svg className="w-5 h-5" fill="currentColor" viewBox="0 0 20 20">
    <path fillRule="evenodd" d="M3 17a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM6.293 6.707a1 1 0 010-1.414l3-3a1 1 0 011.414 0l3 3a1 1 0 01-1.414 1.414L11 5.414V13a1 1 0 11-2 0V5.414L7.707 6.707a1 1 0 01-1.414 0z" clipRule="evenodd" />
  </svg>
)

const MenuIcon = () => (
  <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 6h16M4 12h16M4 18h16" />
  </svg>
)

const CloseIcon = () => (
  <svg className="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
  </svg>
)

const navLinks = [
  { href: '/', label: 'Home', icon: <HomeIcon /> },
  { href: '/search', label: 'Search', icon: <SearchIcon /> },
  { href: '/playlists', label: 'Playlists', icon: <PlaylistIcon /> },
  { href: '/upload', label: 'Upload', icon: <UploadIcon /> },
]

export function Header() {
  const [isMobileMenuOpen, setIsMobileMenuOpen] = useState(false)

  return (
    <header className="fixed top-0 left-0 right-0 z-50 bg-zinc-950/95 backdrop-blur-md border-b border-zinc-800">
      <div className="max-w-7xl mx-auto px-4">
        <div className="flex items-center justify-between h-16">
          {/* Logo */}
          <Link href="/" className="flex items-center gap-2">
            <span className="text-2xl font-bold bg-gradient-to-r from-purple-500 to-pink-500 bg-clip-text text-transparent">
              SonicCloud
            </span>
          </Link>

          {/* Desktop Navigation */}
          <nav className="hidden md:flex items-center gap-1">
            {navLinks.map((link) => (
              <NavLink key={link.href} href={link.href} icon={link.icon}>
                {link.label}
              </NavLink>
            ))}
          </nav>

          {/* Desktop User Menu */}
          <div className="hidden md:block">
            <UserMenu />
          </div>

          {/* Mobile Menu Button */}
          <button
            className="md:hidden p-2 text-zinc-400 hover:text-white transition-colors"
            onClick={() => setIsMobileMenuOpen(!isMobileMenuOpen)}
            aria-label={isMobileMenuOpen ? 'Close menu' : 'Open menu'}
          >
            {isMobileMenuOpen ? <CloseIcon /> : <MenuIcon />}
          </button>
        </div>
      </div>

      {/* Mobile Menu */}
      {isMobileMenuOpen && (
        <div className="md:hidden bg-zinc-950 border-b border-zinc-800">
          <nav className="flex flex-col px-4 py-4 gap-2">
            {navLinks.map((link) => (
              <NavLink
                key={link.href}
                href={link.href}
                icon={link.icon}
                className="w-full"
              >
                {link.label}
              </NavLink>
            ))}
          </nav>
          <div className="px-4 py-4 border-t border-zinc-800">
            <UserMenu />
          </div>
        </div>
      )}
    </header>
  )
}