"use client";

import { useEffect, useState } from "react";
import Link from "next/link";
import { usePathname } from "next/navigation";
import {
  LayoutDashboard,
  Users,
  CreditCard,
  Video,
  Settings,
  MessageSquareQuote,
  HelpCircle,
  Inbox,
  ChevronLeft,
  ChevronRight,
  LogOut,
  ShieldCheck,
} from "lucide-react";
import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
  DialogDescription,
  DialogFooter,
} from "@/components/ui/dialog";
import { Button } from "@/components/ui/button";
import { cn } from "@/lib/utils";
import { LogoIcon } from "@/components/shared/logo";
import { userApi, type UserResponse } from "@/lib/api";
import { getAdminToken, adminLogout } from "@/lib/admin-store";

const navItems = [
  { href: "/admin", icon: LayoutDashboard, label: "Dashboard" },
  { href: "/admin/users", icon: Users, label: "Users" },
  { href: "/admin/plans", icon: CreditCard, label: "Plans & Subs" },
  { href: "/admin/jobs", icon: Video, label: "Video Jobs" },
  { href: "/admin/contact-submissions", icon: Inbox, label: "Contact" },
  { href: "/admin/testimonials", icon: MessageSquareQuote, label: "Testimonials" },
  { href: "/admin/faqs", icon: HelpCircle, label: "FAQs" },
  { href: "/admin/settings", icon: Settings, label: "Settings" },
];

export function AdminSidebar() {
  const [collapsed, setCollapsed] = useState(false);
  const [admin, setAdmin] = useState<UserResponse | null>(null);
  const [confirmLogout, setConfirmLogout] = useState(false);
  const pathname = usePathname();

  useEffect(() => {
    (async () => {
      const token = await getAdminToken();
      if (!token) return;
      try {
        setAdmin(await userApi.getMe(token));
      } catch {
        // non-critical
      }
    })();
  }, []);

  const avatarLetter = admin?.name ? admin.name[0].toUpperCase() : "A";

  return (
    <>
    <aside
      className={cn(
        "fixed left-0 top-0 bottom-0 z-40 flex flex-col border-r border-white/8 bg-black/60 backdrop-blur-xl transition-all duration-300",
        collapsed ? "w-16" : "w-56"
      )}
    >
      {/* Logo */}
      <div className="flex items-center gap-2.5 h-16 px-4 border-b border-white/8">
        <LogoIcon size={30} />
        {!collapsed && (
          <div>
            <div className="text-sm font-bold gradient-text leading-none">ReelsCutter</div>
            <div className="text-[10px] text-zinc-600 mt-0.5">Admin Panel</div>
          </div>
        )}
      </div>

      {/* Admin user info */}
      {!collapsed && (
        <div className="px-4 py-3 border-b border-white/8">
          <div className="flex items-center gap-3">
            <div className="w-8 h-8 rounded-full bg-gradient-to-br from-violet-600 to-red-500 flex items-center justify-center text-sm font-bold text-white flex-shrink-0">
              {avatarLetter}
            </div>
            <div className="min-w-0">
              <div className="text-xs font-medium text-white truncate">{admin?.name ?? "Admin"}</div>
              <div className="flex items-center gap-1 mt-0.5">
                <ShieldCheck className="w-3 h-3 text-violet-400" />
                <span className="text-[10px] text-violet-400">Administrator</span>
              </div>
            </div>
          </div>
        </div>
      )}

      {/* Nav */}
      <nav className="flex-1 py-4 px-2 space-y-1 overflow-y-auto">
        {navItems.map((item) => {
          const active =
            item.href === "/admin" ? pathname === item.href : pathname.startsWith(item.href);
          return (
            <Link
              key={item.href}
              href={item.href}
              className={cn(
                "flex items-center gap-3 px-3 h-10 rounded-lg text-sm font-medium transition-all",
                active
                  ? "bg-violet-600/20 text-violet-300 border border-violet-500/30"
                  : "text-zinc-400 hover:text-white hover:bg-white/5"
              )}
            >
              <item.icon className="w-4 h-4 flex-shrink-0" />
              {!collapsed && <span>{item.label}</span>}
            </Link>
          );
        })}
      </nav>

      {/* Footer */}
      <div className="px-2 pb-4 border-t border-white/8 pt-4 space-y-1">
        <button
          onClick={() => setConfirmLogout(true)}
          className="flex items-center gap-3 px-3 h-9 rounded-lg text-sm text-zinc-500 hover:text-white hover:bg-white/5 transition-all w-full"
        >
          <LogOut className="w-4 h-4 flex-shrink-0" />
          {!collapsed && <span>Sign Out</span>}
        </button>
        <button
          onClick={() => setCollapsed(!collapsed)}
          className="flex items-center gap-3 px-3 h-9 rounded-lg text-sm text-zinc-600 hover:text-white hover:bg-white/5 transition-all w-full"
        >
          {collapsed ? (
            <ChevronRight className="w-4 h-4" />
          ) : (
            <>
              <ChevronLeft className="w-4 h-4" />
              <span>Collapse</span>
            </>
          )}
        </button>
      </div>
    </aside>

    <Dialog open={confirmLogout} onOpenChange={setConfirmLogout}>
      <DialogContent className="bg-zinc-900 border-white/10 text-white max-w-sm">
        <DialogHeader>
          <DialogTitle>Sign out of admin panel?</DialogTitle>
          <DialogDescription className="text-zinc-400">
            You will be redirected to the admin login page.
          </DialogDescription>
        </DialogHeader>
        <DialogFooter className="gap-2">
          <Button
            variant="outline"
            className="bg-white/5 border-white/10 text-zinc-300 hover:bg-white/10 hover:text-white"
            onClick={() => setConfirmLogout(false)}
          >
            Cancel
          </Button>
          <Button
            onClick={adminLogout}
            className="bg-red-600 hover:bg-red-500 text-white border-0"
          >
            Sign Out
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
    </>
  );
}