"use client";

import {
  BadgeCheckIcon,
  BellIcon,
  ChevronsUpDownIcon,
  CreditCardIcon,
  LogOutIcon,
  SparklesIcon,
} from "lucide-react";
import Link from "next/link";
import { useTranslations } from "next-intl";
import { LanguageSelector } from "@/components/i18n/language-selector";
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuGroup,
  DropdownMenuItem,
  DropdownMenuLabel,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import {
  SidebarMenu,
  SidebarMenuButton,
  SidebarMenuItem,
  useSidebar,
} from "@/components/ui/sidebar";
import { authClient } from "@/lib/auth-client";
import { planRank } from "@/lib/billing/plans";

export function NavUser({
  user,
  currentPlan = null,
}: {
  user: {
    name: string;
    email: string;
    avatar: string;
  };
  /** The active org's current plan name (null = no subscription). */
  currentPlan?: string | null;
}) {
  const { isMobile } = useSidebar();
  const t = useTranslations("Nav");
  // "Upgrade to Pro" only makes sense below the Pro tier — hide it once the org
  // is already on Pro or Agency so the upsell matches the current plan.
  const showProUpgrade = planRank(currentPlan) < planRank("pro");
  const initials =
    user.name
      ?.trim()
      .split(/\s+/)
      .map((w) => w[0])
      .slice(0, 2)
      .join("")
      .toUpperCase() || "?";

  async function logout() {
    await authClient.signOut();
    window.location.href = "/login";
  }

  return (
    <SidebarMenu>
      <SidebarMenuItem>
        <DropdownMenu>
          <DropdownMenuTrigger asChild>
            <SidebarMenuButton
              size="lg"
              className="data-[state=open]:bg-sidebar-accent data-[state=open]:text-sidebar-accent-foreground"
            >
              <Avatar className="h-8 w-8 rounded-lg">
                <AvatarImage src={user.avatar} alt={user.name} />
                <AvatarFallback className="rounded-lg">
                  {initials}
                </AvatarFallback>
              </Avatar>
              <div className="grid flex-1 text-left text-sm leading-tight">
                <span className="truncate font-medium">{user.name}</span>
                <span className="truncate text-xs">{user.email}</span>
              </div>
              <ChevronsUpDownIcon className="ml-auto size-4" />
            </SidebarMenuButton>
          </DropdownMenuTrigger>
          <DropdownMenuContent
            className="w-fit"
            side={isMobile ? "bottom" : "right"}
            align="end"
            sideOffset={4}
          >
            <DropdownMenuLabel className="p-0 font-normal">
              <div className="flex items-center gap-2 px-1 py-1.5 text-left text-sm">
                <Avatar className="h-8 w-8 rounded-lg">
                  <AvatarImage src={user.avatar} alt={user.name} />
                  <AvatarFallback className="rounded-lg">
                    {initials}
                  </AvatarFallback>
                </Avatar>
                <div className="grid flex-1 text-left text-sm leading-tight">
                  <span className="truncate font-medium">{user.name}</span>
                  <span className="truncate text-xs">{user.email}</span>
                </div>
              </div>
            </DropdownMenuLabel>
            <DropdownMenuSeparator />
            {showProUpgrade ? (
              <>
                <DropdownMenuGroup>
                  <DropdownMenuItem asChild>
                    <Link href="/settings/billing">
                      <SparklesIcon />
                      {t("upgradeToPro")}
                    </Link>
                  </DropdownMenuItem>
                </DropdownMenuGroup>
                <DropdownMenuSeparator />
              </>
            ) : null}
            <DropdownMenuGroup>
              <DropdownMenuItem asChild>
                <Link href="/settings/account">
                  <BadgeCheckIcon />
                  {t("account")}
                </Link>
              </DropdownMenuItem>
              <DropdownMenuItem asChild>
                <Link href="/settings/billing">
                  <CreditCardIcon />
                  {t("billing")}
                </Link>
              </DropdownMenuItem>
              <DropdownMenuItem>
                <BellIcon />
                {t("notifications")}
              </DropdownMenuItem>
            </DropdownMenuGroup>
            <DropdownMenuSeparator />
            <DropdownMenuLabel className="font-normal text-muted-foreground text-xs">
              Langue / Language
            </DropdownMenuLabel>
            <div className="px-1 pb-1">
              <LanguageSelector className="w-full" />
            </div>
            <DropdownMenuSeparator />
            <DropdownMenuItem onClick={logout}>
              <LogOutIcon />
              {t("signOut")}
            </DropdownMenuItem>
          </DropdownMenuContent>
        </DropdownMenu>
      </SidebarMenuItem>
    </SidebarMenu>
  );
}