'use client';

import Link from 'next/link';
import { usePathname } from 'next/navigation';
import { 
  Video, 
  FolderOpen, 
  Plus, 
  Settings, 
  LogOut, 
  User,
  Menu
} from 'lucide-react';
import { Button } from '@/components/ui/button';
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from '@/components/ui/dropdown-menu';
import { Avatar, AvatarFallback, AvatarImage } from '@/components/ui/avatar';
import { Sheet, SheetContent, SheetTrigger } from '@/components/ui/sheet';
import { ThemeToggle } from '@/components/theme-toggle';
import { cn } from '@/lib/utils';

interface NavItem {
  href: string;
  label: string;
  icon: React.ComponentType<{ className?: string }>;
}

const navItems: NavItem[] = [
  { href: '/dashboard', label: 'Projects', icon: FolderOpen },
];

interface HeaderProps {
  user?: {
    name?: string | null;
    email?: string | null;
    image?: string | null;
  } | null;
}

export function Header({ user }: HeaderProps) {
  const pathname = usePathname();

  return (
    <header className="sticky top-0 z-50 w-full border-b bg-background/95 backdrop-blur supports-[backdrop-filter]:bg-background/60">
      <div className="px-6 lg:px-8 flex h-14 items-center w-full">
        {/* Mobile menu */}
        <Sheet>
          <SheetTrigger asChild>
            <Button variant="ghost" size="icon" className="md:hidden mr-2">
              <Menu className="h-5 w-5" />
              <span className="sr-only">Toggle menu</span>
            </Button>
          </SheetTrigger>
          <SheetContent side="left" className="w-64">
            <nav className="flex flex-col gap-2 mt-4">
              {navItems.map((item) => (
                <Link
                  key={item.href}
                  href={item.href}
                  className={cn(
                    'flex items-center gap-2 px-3 py-2 text-sm font-medium rounded-md transition-colors',
                    pathname === item.href
                      ? 'bg-accent text-accent-foreground'
                      : 'hover:bg-accent hover:text-accent-foreground'
                  )}
                >
                  <item.icon className="h-4 w-4" />
                  {item.label}
                </Link>
              ))}
            </nav>
          </SheetContent>
        </Sheet>

        {/* Logo */}
        <Link href="/" className="flex items-center gap-2 mr-6">
          <Video className="h-6 w-6 text-primary" />
          <span className="font-bold text-lg hidden sm:inline-block">OpenFrame</span>
        </Link>

        {/* Desktop nav */}
        <nav className="hidden md:flex items-center gap-1">
          {navItems.map((item) => (
            <Link
              key={item.href}
              href={item.href}
              className={cn(
                'flex items-center gap-2 px-3 py-2 text-sm font-medium rounded-md transition-colors',
                pathname === item.href
                  ? 'bg-accent text-accent-foreground'
                  : 'hover:bg-accent/50'
              )}
            >
              <item.icon className="h-4 w-4" />
              {item.label}
            </Link>
          ))}
        </nav>

        {/* Right side */}
        <div className="flex items-center gap-2 ml-auto">
          <Button asChild size="sm" className="hidden sm:flex">
            <Link href="/projects/new">
              <Plus className="h-4 w-4 mr-1" />
              New Project
            </Link>
          </Button>
          
          <Button asChild size="icon" variant="ghost" className="sm:hidden">
            <Link href="/projects/new">
              <Plus className="h-5 w-5" />
            </Link>
          </Button>

          <ThemeToggle />

          {user ? (
            <DropdownMenu>
              <DropdownMenuTrigger asChild>
                <Button variant="ghost" className="relative h-8 w-8 rounded-full">
                  <Avatar className="h-8 w-8">
                    <AvatarImage src={user.image ?? undefined} alt={user.name ?? ''} />
                    <AvatarFallback>
                      {user.name?.charAt(0).toUpperCase() ?? 'U'}
                    </AvatarFallback>
                  </Avatar>
                </Button>
              </DropdownMenuTrigger>
              <DropdownMenuContent align="end" className="w-56">
                <div className="flex items-center justify-start gap-2 p-2">
                  <div className="flex flex-col space-y-1 leading-none">
                    {user.name && <p className="font-medium">{user.name}</p>}
                    {user.email && (
                      <p className="w-[200px] truncate text-sm text-muted-foreground">
                        {user.email}
                      </p>
                    )}
                  </div>
                </div>
                <DropdownMenuSeparator />
                <DropdownMenuItem asChild>
                  <Link href="/settings">
                    <Settings className="h-4 w-4 mr-2" />
                    Settings
                  </Link>
                </DropdownMenuItem>
                <DropdownMenuSeparator />
                <DropdownMenuItem asChild>
                  <Link href="/api/auth/signout">
                    <LogOut className="h-4 w-4 mr-2" />
                    Sign out
                  </Link>
                </DropdownMenuItem>
              </DropdownMenuContent>
            </DropdownMenu>
          ) : (
            <Button asChild variant="outline" size="sm">
              <Link href="/login">
                <User className="h-4 w-4 mr-1" />
                Sign in
              </Link>
            </Button>
          )}
        </div>
      </div>
    </header>
  );
}