/**
 * @file features/layout/components/user-menu.tsx
 * @description 사용자 프로필 드롭다운 메뉴 컴포넌트
 * @remarks
 * - [레이어] Components/UI
 * - [사용자 행동] Avatar 클릭 -> 드롭다운 오픈 -> 프로필/설정 이동 또는 로그아웃
 * - [연관 파일] header.tsx, features/auth/actions.ts (로그아웃)
 */

"use client";

import { signout } from "@/features/auth/actions";
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuLabel,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import { User } from "@supabase/supabase-js";
import { LogOut, Settings, User as UserIcon } from "lucide-react";
import { useRouter } from "next/navigation";

interface UserMenuProps {
  /** Supabase User 객체 */
  user: User | null;
}

/**
 * 사용자 메뉴/프로필 컴포넌트 (로그인 시 헤더 노출)
 * @param user 로그인한 사용자 정보
 * @returns Avatar 버튼 및 드롭다운 메뉴
 */
export function UserMenu({ user }: UserMenuProps) {
  const router = useRouter();

  if (!user) return null;

  return (
    <DropdownMenu modal={false}>
      <DropdownMenuTrigger asChild>
        <button className="flex items-center gap-2 outline-none">
          <Avatar className="h-8 w-8 transition-opacity hover:opacity-80">
            <AvatarImage src={user.user_metadata?.avatar_url} />
            <AvatarFallback className="bg-linear-to-br from-brand-500 to-brand-700 text-white text-xs font-bold">
              {user.email?.charAt(0).toUpperCase()}
            </AvatarFallback>
          </Avatar>
        </button>
      </DropdownMenuTrigger>
      <DropdownMenuContent align="end" className="w-56">
        <DropdownMenuLabel className="font-normal">
          <div className="flex flex-col space-y-1">
            <p className="text-sm font-medium leading-none">
              {user.user_metadata?.full_name ||
                user.user_metadata?.name ||
                "사용자"}
            </p>
            <p className="text-xs leading-none text-muted-foreground">
              {user.email}
            </p>
          </div>
        </DropdownMenuLabel>
        <DropdownMenuSeparator />
        <DropdownMenuItem onClick={() => router.push("/profile")}>
          <UserIcon className="mr-2 h-4 w-4" />
          <span>프로필</span>
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => router.push("/settings")}>
          <Settings className="mr-2 h-4 w-4" />
          <span>설정</span>
        </DropdownMenuItem>
        <DropdownMenuSeparator />
        <form action={signout}>
          <DropdownMenuItem asChild>
            <button className="w-full text-red-600 dark:text-red-400">
              <LogOut className="mr-2 h-4 w-4" />
              <span>로그아웃</span>
            </button>
          </DropdownMenuItem>
        </form>
      </DropdownMenuContent>
    </DropdownMenu>
  );
}