"use client";

import { useState } from 'react';
import Link from 'next/link';
import { usePathname } from 'next/navigation';
import { LayoutDashboard, Newspaper, Folders, Building2, MapPin, BadgeDollarSign, FileText, LogOut, ChevronDown, ChevronRight, Image as ImageIcon, Settings, Calendar } from 'lucide-react';
import { logout } from '@/app/actions/auth';

export const Sidebar = ({ user }: { user: any }) => {
  const pathname = usePathname();
  const [openSections, setOpenSections] = useState<Record<string, boolean>>({
      directorio: true,
      geografia: false,
      comercial: false,
      sistema: false
  });

  const toggleSection = (section: string) => {
      setOpenSections(prev => ({ ...prev, [section]: !prev[section] }));
  };

  const sections = [
      {
          id: 'directorio',
          title: 'Directorio',
          items: [
              { name: 'Clientes', href: '/dashboard/clients', icon: Building2 },
              { name: 'Tipos de Cliente', href: '/dashboard/client_types', icon: Building2 },
          ]
      },
      {
          id: 'geografia',
          title: 'Geografía',
          items: [
              { name: 'Países', href: '/dashboard/countries', icon: MapPin },
              { name: 'Departamentos', href: '/dashboard/departments', icon: MapPin },
              { name: 'Ciudades', href: '/dashboard/cities', icon: MapPin },
          ]
      },
      {
          id: 'comercial',
          title: 'Comercial',
          items: [
              { name: 'Contratos', href: '/dashboard/contracts', icon: FileText },
              { name: 'Formas de Pago', href: '/dashboard/payment_methods', icon: BadgeDollarSign },
          ]
      },
      {
          id: 'archivos',
          title: 'Contenido Multimedia',
          items: [
              { name: 'Biblioteca de Medios', href: '/dashboard/media', icon: ImageIcon },
          ]
      },
      {
          id: 'sistema',
          title: 'Sistema y Motor',
          items: [
              { name: 'Perfil de Entidad', href: '/dashboard/entity', icon: Building2 },
              { name: 'Parrilla Programación', href: '/dashboard/programming', icon: Calendar },
              { name: 'Configuración Global', href: '/dashboard/settings', icon: Settings },
          ]
      }
  ];

  return (
    <aside className="w-64 border-r border-slate-800 bg-slate-900 overflow-y-auto hidden md:flex flex-col h-full shrink-0">
      <div className="p-4 border-b border-slate-800 flex justify-between items-center bg-slate-950/50 sticky top-0 z-10">
        <div>
          <h2 className="text-xl font-black font-outfit uppercase tracking-tighter bg-clip-text text-transparent bg-gradient-to-r from-blue-400 to-cyan-400">
            Almeira CMS
          </h2>
          <p className="text-xs font-bold text-slate-400 mt-1 truncate max-w-[140px]" title={user.email}>
             {user.name || user.email}
          </p>
        </div>
        <form action={logout}>
          <button title="Cerrar sesión" className="text-slate-500 hover:text-red-400 p-2 rounded-lg hover:bg-slate-800 transition-colors border border-transparent hover:border-red-500/30">
            <LogOut size={16} />
          </button>
        </form>
      </div>
      
      <nav className="p-4 space-y-2 flex-grow">
        {/* Core items (No collapsible) */}
        <div className="space-y-1 mb-6">
            <Link href="/dashboard" className={`flex items-center gap-3 px-3 py-2.5 text-sm font-medium rounded-lg transition-colors ${pathname === '/dashboard' ? 'bg-cyan-500/10 text-cyan-400 border border-cyan-500/30' : 'text-slate-300 hover:bg-slate-800/80 hover:text-white'}`}>
                <LayoutDashboard size={18} />
                Inicio Dashboard
            </Link>
            <Link href="/dashboard/posts" className={`flex items-center gap-3 px-3 py-2.5 text-sm font-medium rounded-lg transition-colors ${pathname.includes('posts') ? 'bg-cyan-500/10 text-cyan-400 border border-cyan-500/30' : 'text-slate-300 hover:bg-slate-800/80 hover:text-white'}`}>
                <Newspaper size={18} />
                Publicaciones
            </Link>
            <Link href="/dashboard/categories" className={`flex items-center gap-3 px-3 py-2.5 text-sm font-medium rounded-lg transition-colors ${pathname.includes('categories') ? 'bg-cyan-500/10 text-cyan-400 border border-cyan-500/30' : 'text-slate-300 hover:bg-slate-800/80 hover:text-white'}`}>
                <Folders size={18} />
                Categorías
            </Link>
        </div>

        {/* Expandable Sections */}
        {sections.map((section) => {
            const isOpen = openSections[section.id];
            // Check if any child is active
            const hasActiveChild = section.items.some(item => pathname.includes(item.href));
            
            return (
                <div key={section.id} className="pt-2">
                    <button 
                        onClick={() => toggleSection(section.id)}
                        className={`flex items-center justify-between w-full px-3 py-2 text-xs font-black uppercase tracking-widest rounded-lg transition-colors ${hasActiveChild && !isOpen ? 'text-cyan-400 bg-cyan-500/5' : 'text-slate-500 hover:text-slate-300 hover:bg-slate-800/50'}`}
                    >
                        {section.title}
                        {isOpen ? <ChevronDown size={14} /> : <ChevronRight size={14} />}
                    </button>
                    
                    <div className={`mt-1 space-y-1 overflow-hidden transition-all duration-300 ease-in-out ${isOpen ? 'max-h-64 opacity-100' : 'max-h-0 opacity-0'}`}>
                        {section.items.map(item => {
                            const isActive = pathname.includes(item.href);
                            return (
                                <Link 
                                    key={item.href} 
                                    href={item.href} 
                                    className={`flex items-center gap-3 pl-8 pr-3 py-2.5 text-sm font-medium rounded-lg transition-colors ${isActive ? 'bg-cyan-500/10 text-cyan-400 border border-cyan-500/30' : 'text-slate-400 hover:bg-slate-800/80 hover:text-white'}`}
                                >
                                    <item.icon size={16} className={isActive ? 'text-cyan-400' : 'opacity-70'} />
                                    {item.name}
                                </Link>
                            );
                        })}
                    </div>
                </div>
            )
        })}
      </nav>
      <div className="p-4 border-t border-slate-800 text-center text-xs font-bold text-slate-600 uppercase tracking-widest pb-6">
          Almeira CMS 1.0
      </div>
    </aside>
  );
};