import { useState } from 'react'
import { Link, useLocation, useNavigate } from 'react-router-dom'
import { Disc3, LayoutDashboard, Fingerprint, Clock, ListMusic, ListPlus, Compass, Lightbulb, Store, Users, ArrowDownCircle, Heart, Crown, Shield, Menu, X, LogOut, User, Settings } from 'lucide-react'
import { useAuth } from '../lib/auth'

const ADMIN_EMAIL = 'chris.ryan@deepcutsai.com'

const baseNavItems = [
  { path: '/dashboard', label: 'Dashboard', icon: LayoutDashboard },
  { path: '/profile', label: 'My Taste', icon: Fingerprint },
  { path: '/timeline', label: 'Timeline', icon: Clock },
  { path: '/playlists', label: 'Playlists', icon: ListMusic },
  { path: '/discover', label: 'Discover', icon: Compass },
  { path: '/analyze', label: 'Analyze', icon: Lightbulb },
  { path: '/generate-playlist', label: 'Create Playlist', icon: ListPlus },
  { path: '/crate', label: 'Crate Dig', icon: Disc3 },
  { path: '/rabbit-hole', label: 'Rabbit Hole', icon: ArrowDownCircle },
  { path: '/bandcamp', label: 'Bandcamp', icon: Store },
  { path: '/compatibility', label: 'Taste Match', icon: Users },
  { path: '/saved', label: 'Saved', icon: Heart },
  { path: '/billing', label: 'Pro', icon: Crown },
]

export default function Layout({ children }: { children: React.ReactNode }) {
  const [mobileMenuOpen, setMobileMenuOpen] = useState(false)
  const [userMenuOpen, setUserMenuOpen] = useState(false)
  const { user, logout } = useAuth()

  const navItems = user?.email === ADMIN_EMAIL
    ? [...baseNavItems, { path: '/admin', label: 'Admin', icon: Shield }]
    : baseNavItems
  const location = useLocation()
  const navigate = useNavigate()

  const handleLogout = () => {
    logout()
    navigate('/')
  }

  return (
    <div className="min-h-screen bg-cream">
      {/* Navigation */}
      <nav className="bg-white/80 backdrop-blur-md border-b border-purple-100 sticky top-0 z-50">
        <div className="max-w-6xl mx-auto px-4 sm:px-6">
          <div className="flex items-center justify-between h-16">
            {/* Logo */}
            <Link to="/dashboard" className="flex items-center gap-2 no-underline">
              <Disc3 className="w-8 h-8 text-purple" strokeWidth={2.5} />
              <span className="text-2xl font-bold text-charcoal tracking-tight">
                Vynl
              </span>
            </Link>

            {/* Desktop Nav */}
            <div className="hidden md:flex items-center gap-1">
              {navItems.map((item) => {
                const Icon = item.icon
                const isActive = location.pathname === item.path
                return (
                  <Link
                    key={item.path}
                    to={item.path}
                    className={`flex items-center gap-2 px-4 py-2 rounded-lg text-sm font-medium no-underline transition-colors ${
                      isActive
                        ? 'bg-purple text-white'
                        : 'text-charcoal-muted hover:bg-purple-50 hover:text-purple'
                    }`}
                  >
                    <Icon className="w-4 h-4" />
                    {item.label}
                  </Link>
                )
              })}
            </div>

            {/* User Menu */}
            <div className="hidden md:flex items-center gap-3">
              <div className="relative">
                <button
                  onClick={() => setUserMenuOpen(!userMenuOpen)}
                  className="flex items-center gap-2 px-3 py-2 rounded-lg hover:bg-purple-50 transition-colors cursor-pointer bg-transparent border-none text-sm"
                >
                  <div className="w-8 h-8 rounded-full bg-purple-100 flex items-center justify-center">
                    <User className="w-4 h-4 text-purple" />
                  </div>
                  <span className="text-charcoal font-medium">{user?.name}</span>
                </button>
                {userMenuOpen && (
                  <>
                    <div
                      className="fixed inset-0"
                      onClick={() => setUserMenuOpen(false)}
                    />
                    <div className="absolute right-0 mt-2 w-48 bg-white rounded-xl shadow-lg border border-purple-100 py-2 z-50">
                      <div className="px-4 py-2 border-b border-purple-50">
                        <p className="text-sm font-medium text-charcoal">{user?.name}</p>
                        <p className="text-xs text-charcoal-muted">{user?.email}</p>
                      </div>
                      <Link
                        to="/settings"
                        onClick={() => setUserMenuOpen(false)}
                        className="w-full flex items-center gap-2 px-4 py-2 text-sm text-charcoal hover:bg-purple-50 transition-colors no-underline"
                      >
                        <Settings className="w-4 h-4" />
                        Settings
                      </Link>
                      <button
                        onClick={handleLogout}
                        className="w-full flex items-center gap-2 px-4 py-2 text-sm text-red-600 hover:bg-red-50 transition-colors cursor-pointer bg-transparent border-none text-left"
                      >
                        <LogOut className="w-4 h-4" />
                        Sign out
                      </button>
                    </div>
                  </>
                )}
              </div>
            </div>

            {/* Mobile menu button */}
            <button
              onClick={() => setMobileMenuOpen(!mobileMenuOpen)}
              className="md:hidden p-2 rounded-lg hover:bg-purple-50 transition-colors cursor-pointer bg-transparent border-none"
            >
              {mobileMenuOpen ? (
                <X className="w-6 h-6 text-charcoal" />
              ) : (
                <Menu className="w-6 h-6 text-charcoal" />
              )}
            </button>
          </div>
        </div>

        {/* Mobile Nav */}
        {mobileMenuOpen && (
          <div className="md:hidden border-t border-purple-100 bg-white">
            <div className="px-4 py-3 space-y-1">
              {navItems.map((item) => {
                const Icon = item.icon
                const isActive = location.pathname === item.path
                return (
                  <Link
                    key={item.path}
                    to={item.path}
                    onClick={() => setMobileMenuOpen(false)}
                    className={`flex items-center gap-3 px-4 py-3 rounded-lg text-sm font-medium no-underline transition-colors ${
                      isActive
                        ? 'bg-purple text-white'
                        : 'text-charcoal-muted hover:bg-purple-50 hover:text-purple'
                    }`}
                  >
                    <Icon className="w-5 h-5" />
                    {item.label}
                  </Link>
                )
              })}
              <div className="border-t border-purple-50 pt-2 mt-2">
                <div className="px-4 py-2">
                  <p className="text-sm font-medium text-charcoal">{user?.name}</p>
                  <p className="text-xs text-charcoal-muted">{user?.email}</p>
                </div>
                <button
                  onClick={handleLogout}
                  className="w-full flex items-center gap-3 px-4 py-3 text-sm text-red-600 hover:bg-red-50 rounded-lg transition-colors cursor-pointer bg-transparent border-none text-left"
                >
                  <LogOut className="w-5 h-5" />
                  Sign out
                </button>
              </div>
            </div>
          </div>
        )}
      </nav>

      {/* Main Content */}
      <main className="max-w-6xl mx-auto px-3 sm:px-6 py-4 sm:py-8">
        {children}
      </main>
    </div>
  )
}