'use client';

import Link from 'next/link';
import { usePathname } from 'next/navigation';
import { cn } from '@/lib/utils';
import Image from 'next/image';
import { Josefin_Sans } from 'next/font/google';
import { Montserrat } from 'next/font/google';
import {
  LayoutDashboard,
  FolderOpen,
  Users,
  UserCog,
  Settings,
  ChevronLeft,
  ChevronRight,
  ListTodo,
  CalendarRange,
} from 'lucide-react';
import { useState } from 'react';
import { useSession } from 'next-auth/react';
import { Button } from '@/components/ui/button';

const navItems = [
  { href: '/dashboard', label: 'Dashboard', icon: LayoutDashboard },
  { href: '/projects', label: 'Projects', icon: FolderOpen },
  { href: '/tasks', label: 'My Tasks', icon: ListTodo, hideForClient: true },
  { href: '/schedule', label: 'Schedule', icon: CalendarRange, adminOnly: true },
  { href: '/clients', label: 'Clients', icon: Users, adminOnly: true },
  { href: '/users', label: 'Users', icon: UserCog, adminOnly: true, adminStrictOnly: true },
  { href: '/settings', label: 'Settings', icon: Settings },
];

const josefin = Josefin_Sans({
  subsets: ['latin'],
  weight: ['300', '400'],
});
const montserrat = Montserrat({
  subsets: ['latin'],
  weight: ['200', '500', '600'],
});

export function Sidebar() {
  const pathname = usePathname();
  const { data: session } = useSession();
  const [collapsed, setCollapsed] = useState(false);
  const isAdmin = ['ADMIN', 'PRODUCER'].includes(session?.user?.role ?? '');

  return (
    <aside
      className={cn(
        'flex flex-col border-r border-zinc-800 bg-zinc-900 transition-all duration-200',
        collapsed ? 'w-16' : 'w-60',
      )}
    >
      {/* Logo */}
      <div
        className={cn(
          'flex items-center gap-3 px-4 py-5 border-b border-zinc-800',
          collapsed && 'justify-center px-0',
        )}
      >
        <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-md bg-black">
          <Image src="/logo.svg" alt="Logo" width={32} height={32} />
        </div>

        {!collapsed && (
          <div className={montserrat.className}>
            <span className="block text-2xl font-light text-white leading-none">
              TWO TALES
            </span>

            <span className="block text-[11px] tracking-[0.18em]  italic text-zinc-400 leading-none -mt-0.25">
              vfx review
            </span>
          </div>
        )}
      </div>

      {/* Navigation */}
      <nav className="flex-1 px-2 py-4 space-y-1">
        {navItems.map((item) => {
          if (item.adminOnly && !isAdmin) return null;
          if ((item as any).adminStrictOnly && session?.user?.role !== 'ADMIN') return null;
          if ((item as any).hideForClient && session?.user?.role === 'CLIENT')
            return null;
          const Icon = item.icon;
          const isActive =
            pathname === item.href || pathname.startsWith(item.href + '/');

          return (
            <Link
              key={item.href}
              href={item.href}
              className={cn(
                'flex items-center gap-3 rounded-lg px-3 py-2.5 text-sm font-medium transition-colors',
                collapsed && 'justify-center px-0 w-full',
                isActive
                  ? 'bg-amber-500/10 text-amber-400'
                  : 'text-zinc-400 hover:text-white hover:bg-zinc-800',
              )}
              title={collapsed ? item.label : undefined}
            >
              <Icon className="h-4 w-4 shrink-0" />
              {!collapsed && <span>{item.label}</span>}
            </Link>
          );
        })}
      </nav>

      {/* Collapse toggle */}
      <div className="border-t border-zinc-800 p-2">
        <Button
          variant="ghost"
          size="icon-sm"
          className="w-full"
          onClick={() => setCollapsed(!collapsed)}
          title={collapsed ? 'Expand sidebar' : 'Collapse sidebar'}
        >
          {collapsed ? (
            <ChevronRight className="h-4 w-4" />
          ) : (
            <ChevronLeft className="h-4 w-4" />
          )}
        </Button>
      </div>
    </aside>
  );
}