"use client";

import { useEffect, useState } from "react";
import { useAuth } from "@/hooks/use-auth";
import { getUser } from "@/lib/usersService"; 

import {
  Sidebar,
  SidebarContent,
  SidebarFooter,
  SidebarGroup,
  SidebarGroupContent,
  SidebarGroupLabel,
  SidebarMenu,
  SidebarMenuButton,
  SidebarMenuItem,
} from "@/components/ui/sidebar";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuLabel,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
import { UserProfileDialog } from "@/components/user-profile";
import { SettingsDialog } from "@/components/settings";
import { 
  Home, 
  FolderKanban, 
  BarChart3, 
  Settings, 
  ChevronUp,
  LogOut,
  User,
  GanttChart,
  Loader2
} from "lucide-react";

// Datos del menú
const items = [
  {
    title: "Dashboard",
    url: "/",
    icon: Home,
  },
  {
    title: "Proyectos",
    url: "/proyectos",
    icon: FolderKanban,
  },
  {
    title: "Estadísticas",
    url: "/estadisticas",
    icon: BarChart3,
  },
  {
    title: "Gantt",
    url: "/gantt",
    icon: GanttChart,
  },
];

export function AppSidebar() {
  const { logout, user: authUser } = useAuth();
  const [user, setUser] = useState({
    name: "Cargando...",
    email: "",
    avatar: "/avatar.jpg",
    initials: "..."
  });
  const [isProfileOpen, setIsProfileOpen] = useState(false);
  const [isSettingsOpen, setIsSettingsOpen] = useState(false);
  const [isLoggingOut, setIsLoggingOut] = useState(false);

  useEffect(() => {
    async function loadUser() {
      try {
        // Si tenemos usuario del auth, usarlo primero
        if (authUser) {
          setUser({
            name: `${authUser.firstname} ${authUser.lastname}`,
            email: authUser.email,
            avatar: "/avatar.jpg",
            initials: `${authUser.firstname.charAt(0)}${authUser.lastname.charAt(0)}`
          });
        }
        
        // Luego intentar cargar datos más completos
        const realUser = await getUser();
        setUser({
          name: `${realUser.firstname} ${realUser.lastname}`,
          email: realUser.email,
          avatar: "/avatar.jpg",
          initials: `${realUser.firstname.charAt(0)}${realUser.lastname.charAt(0)}`
        });
      } catch (error) {
        console.error("Failed to load user:", error);
        // Si falla y tenemos authUser, mantener esos datos
        if (!authUser) {
          setUser(prev => ({ ...prev, name: "Usuario" }));
        }
      }
    }
    loadUser();
  }, [authUser]);

  const handleLogout = async () => {
    setIsLoggingOut(true);
    try {
      await logout();
    } catch (error) {
      console.error("Logout error:", error);
    } finally {
      setIsLoggingOut(false);
    }
  };

  return (
    <Sidebar>
      <SidebarContent>
        {/* Header del Sidebar */}
        <SidebarGroup>
          <div className="px-4 py-6">
            <h2 className="text-xl font-semibold text-foreground">Dolibarr</h2>
            <p className="text-sm text-muted-foreground">Gestión de Proyectos</p>
          </div>
        </SidebarGroup>

        {/* Menú de navegación */}
        <SidebarGroup>
          <SidebarGroupLabel className="text-sm">Menú Principal</SidebarGroupLabel>
          <SidebarGroupContent>
            <SidebarMenu>
              {items.map((item) => (
                <SidebarMenuItem key={item.title}>
                  <SidebarMenuButton asChild size="lg">
                    <a href={item.url} className="text-base">
                      <item.icon className="w-5 h-5" />
                      <span>{item.title}</span>
                    </a>
                  </SidebarMenuButton>
                </SidebarMenuItem>
              ))}
            </SidebarMenu>
          </SidebarGroupContent>
        </SidebarGroup>
      </SidebarContent>

      {/* Footer con Dropdown del Usuario */}
      <SidebarFooter>
        <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 bg-gradient-to-br from-blue-500 to-purple-600 text-white">
                      {user.initials}
                    </AvatarFallback>
                  </Avatar>
                  <div className="grid flex-1 text-left text-sm leading-tight">
                    <span className="truncate font-semibold">{user.name}</span>
                    <span className="truncate text-xs text-muted-foreground">{user.email}</span>
                  </div>
                  <ChevronUp className="ml-auto size-4" />
                </SidebarMenuButton>
              </DropdownMenuTrigger>
              <DropdownMenuContent
                className="w-[--radix-dropdown-menu-trigger-width] min-w-56 rounded-lg"
                side="bottom"
                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 bg-gradient-to-br from-blue-500 to-purple-600 text-white">
                        {user.initials}
                      </AvatarFallback>
                    </Avatar>
                    <div className="grid flex-1 text-left text-sm leading-tight">
                      <span className="truncate font-semibold">{user.name}</span>
                      <span className="truncate text-xs text-muted-foreground">{user.email}</span>
                    </div>
                  </div>
                </DropdownMenuLabel>
                <DropdownMenuSeparator />
                <DropdownMenuItem onClick={() => setIsProfileOpen(true)}>
                  <User className="mr-2 h-4 w-4" />
                  <span>Perfil</span>
                </DropdownMenuItem>
                <DropdownMenuItem onClick={() => setIsSettingsOpen(true)}>
                  <Settings className="mr-2 h-4 w-4" />
                  <span>Ajustes</span>
                </DropdownMenuItem>
                <DropdownMenuSeparator />
                <DropdownMenuItem 
                  className="text-destructive focus:text-destructive"
                  onClick={handleLogout}
                  disabled={isLoggingOut}
                >
                  {isLoggingOut ? (
                    <>
                      <Loader2 className="mr-2 h-4 w-4 animate-spin" />
                      <span>Cerrando sesión...</span>
                    </>
                  ) : (
                    <>
                      <LogOut className="mr-2 h-4 w-4" />
                      <span>Cerrar sesión</span>
                    </>
                  )}
                </DropdownMenuItem>
              </DropdownMenuContent>
            </DropdownMenu>
          </SidebarMenuItem>
        </SidebarMenu>
      </SidebarFooter>

      {/* Dialog de perfil de usuario */}
      <UserProfileDialog 
        open={isProfileOpen} 
        onOpenChange={setIsProfileOpen} 
      />

      {/* Dialog de ajustes */}
      <SettingsDialog
        open={isSettingsOpen}
        onOpenChange={setIsSettingsOpen}
      />
    </Sidebar>
  );
}