import { redirect } from "next/navigation";
import { headers } from "next/headers";
import { auth } from "@/lib/auth/server";
import { db, users, eq } from "@epicure/db";
import Link from "next/link";
import { Shield, Users, BookOpen, Settings, BarChart3, ClipboardList, HardDrive, Bot, ArrowLeft, Gauge, Mail, Flag } from "lucide-react";
import { cn } from "@/lib/utils";

const adminNav = [
  { href: "/admin", label: "Overview", icon: BarChart3 },
  { href: "/admin/users", label: "Users", icon: Users },
  { href: "/admin/invites", label: "Invites", icon: Mail },
  { href: "/admin/recipes", label: "Recipes", icon: BookOpen },
  { href: "/admin/reports", label: "Reports", icon: Flag },
  { href: "/admin/tiers", label: "Tier Limits", icon: Gauge },
  { href: "/admin/audit-logs", label: "Audit Logs", icon: ClipboardList },
  { href: "/admin/storage", label: "Storage", icon: HardDrive },
  { href: "/admin/ai-config", label: "AI Config", icon: Bot },
  { href: "/admin/settings", label: "Settings", icon: Settings },
];

export default async function AdminLayout({ children }: { children: React.ReactNode }) {
  const session = await auth.api.getSession({ headers: await headers() });
  if (!session) redirect("/login");

  const [dbUser] = await db.select({ role: users.role }).from(users).where(eq(users.id, session.user.id));
  if (dbUser?.role !== "admin") redirect("/recipes");

  return (
    <div className="flex min-h-screen">
      <aside className="w-56 border-r bg-muted/30 flex flex-col sticky top-0 h-screen">
        <div className="flex items-center gap-2 p-4 border-b font-semibold">
          <Shield className="h-4 w-4 text-destructive" />
          Admin
        </div>
        <nav className="flex flex-col gap-1 p-2 flex-1">
          {adminNav.map(({ href, label, icon: Icon }) => (
            <Link
              key={href}
              href={href}
              className={cn(
                "flex items-center gap-2 rounded-md px-3 py-2 text-sm transition-colors",
                "hover:bg-accent hover:text-accent-foreground"
              )}
            >
              <Icon className="h-4 w-4" />
              {label}
            </Link>
          ))}
        </nav>
        <div className="p-2 border-t">
          <Link
            href="/recipes"
            className="flex items-center gap-2 rounded-md px-3 py-2 text-sm text-muted-foreground hover:text-foreground hover:bg-accent transition-colors"
          >
            <ArrowLeft className="h-4 w-4" />
            Back to app
          </Link>
        </div>
      </aside>
      <main className="flex-1 p-8 overflow-auto">{children}</main>
    </div>
  );
}
