"use client";

import { ChevronRight, type LucideIcon } from "lucide-react";

import {
  Collapsible,
  CollapsibleContent,
  CollapsibleTrigger,
} from "@/components/ui/collapsible";
import {
  SidebarGroup,
  SidebarMenu,
  SidebarMenuButton,
  SidebarMenuItem,
  SidebarMenuSub,
  SidebarMenuSubButton,
  SidebarMenuSubItem,
  useSidebar,
} from "@/components/ui/sidebar";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import { usePathname } from "next/navigation";
import Link from "next/link";
import * as React from "react";

export function NavMain({
  items,
}: {
  items: {
    title: string;
    url: string;
    icon?: LucideIcon;
    isActive?: boolean;
    items?: {
      title: string;
      url: string;
    }[];
  }[];
}) {
  const pathname = usePathname();
  const { state } = useSidebar();
  const isCollapsed = state === "collapsed";

  return (
    <SidebarGroup>
      <SidebarMenu>
        {items.map((item) => {
          const hasSubmenu = item.items && item.items.length > 0;
          const isActive = pathname === item.url;
          const hasActiveSubmenu =
            hasSubmenu && item.items!.some((sub) => pathname === sub.url);

          // В свернутом состоянии показываем DropdownMenu для элементов с подменю
          if (isCollapsed && hasSubmenu) {
            return (
              <SidebarMenuItem key={item.title}>
                <DropdownMenu>
                  <DropdownMenuTrigger asChild>
                    <SidebarMenuButton
                      tooltip={item.title}
                      isActive={isActive || hasActiveSubmenu}
                    >
                      {item.icon && <item.icon />}
                      <span>{item.title}</span>
                    </SidebarMenuButton>
                  </DropdownMenuTrigger>
                  <DropdownMenuContent
                    side="right"
                    align="start"
                    className="min-w-[200px]"
                  >
                    {item.items!.map((subItem) => {
                      const isSubActive = pathname === subItem.url;
                      return (
                        <DropdownMenuItem key={subItem.title} asChild>
                          <Link
                            href={subItem.url}
                            className={
                              isSubActive
                                ? "bg-accent text-accent-foreground"
                                : ""
                            }
                          >
                            {subItem.title}
                          </Link>
                        </DropdownMenuItem>
                      );
                    })}
                  </DropdownMenuContent>
                </DropdownMenu>
              </SidebarMenuItem>
            );
          }

          // Обычное отображение для развернутого состояния
          return (
            <Collapsible
              key={item.title}
              asChild
              defaultOpen={isActive || hasActiveSubmenu}
              className="group/collapsible"
            >
              <SidebarMenuItem>
                {hasSubmenu ? (
                  <>
                    <CollapsibleTrigger asChild>
                      <SidebarMenuButton
                        tooltip={item.title}
                        isActive={isActive || hasActiveSubmenu}
                      >
                        {item.icon && <item.icon />}
                        <span>{item.title}</span>
                        <ChevronRight className="ml-auto transition-transform duration-200 group-data-[state=open]/collapsible:rotate-90" />
                      </SidebarMenuButton>
                    </CollapsibleTrigger>
                    <CollapsibleContent>
                      <SidebarMenuSub>
                        {item.items!.map((subItem) => {
                          const isSubActive = pathname === subItem.url;
                          return (
                            <SidebarMenuSubItem key={subItem.title}>
                              <SidebarMenuSubButton
                                asChild
                                isActive={isSubActive}
                              >
                                <Link href={subItem.url}>
                                  <span>{subItem.title}</span>
                                </Link>
                              </SidebarMenuSubButton>
                            </SidebarMenuSubItem>
                          );
                        })}
                      </SidebarMenuSub>
                    </CollapsibleContent>
                  </>
                ) : (
                  <SidebarMenuButton
                    asChild
                    tooltip={item.title}
                    isActive={isActive}
                  >
                    <Link href={item.url}>
                      {item.icon && <item.icon />}
                      <span>{item.title}</span>
                    </Link>
                  </SidebarMenuButton>
                )}
              </SidebarMenuItem>
            </Collapsible>
          );
        })}
      </SidebarMenu>
    </SidebarGroup>
  );
}