"use client"

import Link from "next/link"
import { useSession, signOut } from "next-auth/react"
import { Button } from "@/components/ui/button"
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar"
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuLabel,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"
import { LogIn, Settings, LogOut } from "lucide-react"
import { ThemeToggle } from "@/components/ThemeToggle"

export default function Navbar() {
  const { data: session, status } = useSession()

  const getInitials = (name: string) => {
    return name
      .split(' ')
      .map(word => word[0])
      .join('')
      .toUpperCase()
      .slice(0, 2)
  }

  return (
    <nav className="border-b bg-background/95 backdrop-blur supports-[backdrop-filter]:bg-background/60">
      <div className="container mx-auto px-4 h-16 flex items-center justify-between">
        <Link href="/" className="flex items-center space-x-2">
          <div className="w-8 h-8 bg-primary rounded-md flex items-center justify-center">
            <span className="text-primary-foreground font-bold text-lg">W</span>
          </div>
          <span className="font-bold text-xl">Widget</span>
        </Link>
        
        <div className="flex items-center space-x-4">
          <ThemeToggle />
          {status === "loading" ? (
            <div className="flex items-center space-x-2">
              <div className="w-16 h-4 bg-muted animate-pulse rounded hidden sm:block" />
              <div className="w-8 h-8 rounded-full bg-muted animate-pulse" />
            </div>
          ) : session ? (
            <DropdownMenu>
              <DropdownMenuTrigger asChild>
                <Button variant="ghost" className="relative h-10 w-auto px-2 rounded-full">
                  <div className="flex items-center space-x-2">
                    <span className="text-sm font-medium hidden sm:block">
                      {session.user?.name}
                    </span>
                    <Avatar className="h-8 w-8">
                      <AvatarImage src={session.user?.image || ""} alt={session.user?.name || ""} />
                      <AvatarFallback className="text-xs">
                        {session.user?.name ? getInitials(session.user.name) : "U"}
                      </AvatarFallback>
                    </Avatar>
                  </div>
                </Button>
              </DropdownMenuTrigger>
              <DropdownMenuContent className="w-56" align="end" forceMount>
                <DropdownMenuLabel className="font-normal">
                  <div className="flex flex-col space-y-1">
                    <p className="text-sm font-medium leading-none">
                      {session.user?.name}
                    </p>
                    <p className="text-xs leading-none text-muted-foreground">
                      {session.user?.email}
                    </p>
                  </div>
                </DropdownMenuLabel>
                <DropdownMenuSeparator />
                <DropdownMenuItem asChild>
                  <Link href="/settings" className="w-full cursor-pointer">
                    <Settings className="mr-2 h-4 w-4" />
                    Settings
                  </Link>
                </DropdownMenuItem>
                <DropdownMenuSeparator />
                <DropdownMenuItem 
                  className="cursor-pointer text-destructive hover:text-destructive focus:text-destructive"
                  onClick={() => signOut()}
                >
                  <LogOut className="mr-2 h-4 w-4 text-destructive" />
                  Log out
                </DropdownMenuItem>
              </DropdownMenuContent>
            </DropdownMenu>
          ) : (
            <Button asChild>
              <Link href="/login">
                <LogIn className="mr-2 h-4 w-4" />
                Sign In
              </Link>
            </Button>
          )}
        </div>
      </div>
    </nav>
  )
}