"use client";

import {
  Bell,
  LogIn,
  LogOut,
  Sparkles,
  BadgeCheck,
  CreditCard,
  ChevronsUpDown,
} from "lucide-react";
import { useMemo } from "react";
import {
  useSidebar,
  SidebarMenu,
  SidebarMenuButton,
  SidebarMenuItem,
} from "@/components/ui/sidebar";
import {
  DropdownMenu,
  DropdownMenuItem,
  DropdownMenuGroup,
  DropdownMenuLabel,
  DropdownMenuContent,
  DropdownMenuTrigger,
  DropdownMenuSeparator,
} from "@/components/ui/dropdown-menu";
import { useSession } from "next-auth/react";
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";

const UserAvatar = ({ src, alt }: { src: string; alt: string }) => (
  <Avatar className="h-8 w-8 rounded-lg">
    <AvatarImage src={src} alt={alt} />
    <AvatarFallback className="rounded-lg">CN</AvatarFallback>
  </Avatar>
);

export const NavUser = ({
  user,
}: {
  user: {
    name: string;
    email: string;
    avatar: string;
  };
}) => {
  const { isMobile } = useSidebar();
  const { data: session } = useSession();

  const currentUser = useMemo(() => {
    if (session?.user) {
      return {
        name: session.user.name ?? "Unknown",
        email: session.user.email ?? "Unknown",
        avatar: session.user.image ?? "/gitea.svg",
      };
    }
    return user;
  }, [session, user]);

  return (
    <SidebarMenu>
      <SidebarMenuItem>
        <DropdownMenu>
          <DropdownMenuTrigger asChild>
            <SidebarMenuButton
              size="lg"
              className="data-[state=open]:bg-sidebar-accent data-[state=open]:text-sidebar-accent-foreground"
            >
              <UserAvatar src={currentUser.avatar} alt={currentUser.name} />
              <div className="grid flex-1 text-left text-sm leading-tight">
                <span className="truncate font-semibold">
                  {currentUser.name}
                </span>
                <span className="truncate text-xs">{currentUser.email}</span>
              </div>
              <ChevronsUpDown className="ml-auto size-4" />
            </SidebarMenuButton>
          </DropdownMenuTrigger>
          <DropdownMenuContent
            className="w-[--radix-dropdown-menu-trigger-width] min-w-56 rounded-lg"
            side={isMobile ? "bottom" : "right"}
            align="end"
            sideOffset={4}
          >
            {session?.user ? (
              <>
                <DropdownMenuLabel className="p-0 font-normal">
                  <div className="flex items-center gap-2 px-1 py-1.5 text-left text-sm">
                    <UserAvatar
                      src={currentUser.avatar}
                      alt={currentUser.name}
                    />
                    <div className="grid flex-1 text-left text-sm leading-tight">
                      <span className="truncate font-semibold">
                        {currentUser.name}
                      </span>
                      <span className="truncate text-xs">
                        {currentUser.email}
                      </span>
                    </div>
                  </div>
                </DropdownMenuLabel>
                <DropdownMenuSeparator />
                <DropdownMenuGroup>
                  <DropdownMenuItem>
                    <Sparkles />
                    Upgrade to Pro
                  </DropdownMenuItem>
                </DropdownMenuGroup>
                <DropdownMenuSeparator />
                <DropdownMenuGroup>
                  <DropdownMenuItem>
                    <BadgeCheck />
                    Account
                  </DropdownMenuItem>
                  <DropdownMenuItem>
                    <CreditCard />
                    Billing
                  </DropdownMenuItem>
                  <DropdownMenuItem>
                    <Bell />
                    Notifications
                  </DropdownMenuItem>
                </DropdownMenuGroup>
                <DropdownMenuSeparator />
                <DropdownMenuGroup>
                  <DropdownMenuItem>
                    <LogOut />
                    Log out
                  </DropdownMenuItem>
                </DropdownMenuGroup>
              </>
            ) : (
              <DropdownMenuGroup>
                <DropdownMenuItem>
                  <LogIn />
                  Log in
                </DropdownMenuItem>
              </DropdownMenuGroup>
            )}
          </DropdownMenuContent>
        </DropdownMenu>
      </SidebarMenuItem>
    </SidebarMenu>
  );
};