"use client";

import * as React from "react";
import Link from "next/link";
import { usePathname, useRouter } from "next/navigation";
import {
  LayoutDashboard,
  Users,
  Settings,
  ChevronRight,
  LogOut,
  ChevronsUpDown,
  CloudUpload,
} from "lucide-react";

import {
  Sidebar,
  SidebarContent,
  SidebarGroup,
  SidebarGroupLabel,
  SidebarHeader,
  SidebarMenu,
  SidebarMenuButton,
  SidebarMenuItem,
  SidebarMenuSub,
  SidebarMenuSubButton,
  SidebarMenuSubItem,
  SidebarFooter,
  SidebarRail,
} from "@/components/ui/sidebar";
import {
  Collapsible,
  CollapsibleContent,
  CollapsibleTrigger,
} from "@/components/ui/collapsible";
import {
  Avatar,
  AvatarFallback,
  AvatarImage,
} from "@/components/ui/avatar";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuLabel,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import { authClient } from "@/lib/auth-client";

type NavItem = {
  title: string;
  url: string;
  icon: React.ComponentType<{ className?: string }>;
  items?: { title: string; url: string }[];
};

const navData: NavItem[] = [
  { title: "仪表盘", url: "/admin", icon: LayoutDashboard },
  {
    title: "用户管理",
    url: "/admin/users",
    icon: Users,
    items: [
      { title: "用户列表", url: "/admin/users" },
      { title: "角色管理", url: "/admin/users/roles" },
    ],
  },
  { title: "文件管理", url: "/admin/uploads", icon: CloudUpload },
  { title: "设置", url: "/admin/settings", icon: Settings },
];

type SidebarUser = {
  name: string;
  email: string;
  image?: string | null;
};

export function AppSidebar({
  user,
  ...props
}: React.ComponentProps<typeof Sidebar> & { user?: SidebarUser }) {
  const pathname = usePathname();
  const router = useRouter();

  const isActive = (url: string) =>
    url === "/admin" ? pathname === url : pathname.startsWith(url);

  return (
    <Sidebar collapsible="icon" {...props}>
      <SidebarHeader>
        <SidebarMenu>
          <SidebarMenuItem>
            <SidebarMenuButton
              size="lg"
              tooltip="鼎星管理后台"
              render={<Link href="/admin" />}
            >
              <div className="flex aspect-square size-8 items-center justify-center rounded-lg bg-primary text-primary-foreground">
                <span className="text-sm font-bold">DX</span>
              </div>
              <div className="grid flex-1 text-left text-sm leading-tight">
                <span className="truncate font-semibold">鼎星管理后台</span>
                <span className="truncate text-xs text-muted-foreground">
                  Admin Console
                </span>
              </div>
            </SidebarMenuButton>
          </SidebarMenuItem>
        </SidebarMenu>
      </SidebarHeader>

      <SidebarContent>
        <SidebarGroup>
          <SidebarGroupLabel>管理</SidebarGroupLabel>
          <SidebarMenu>
            {navData.map((item) =>
              item.items ? (
                <Collapsible
                  key={item.title}
                  defaultOpen={item.items.some((sub) => isActive(sub.url))}
                  className="group/collapsible [&[data-open]>li>button>svg:last-child]:rotate-90"
                >
                  <SidebarMenuItem>
                    <CollapsibleTrigger
                      render={<SidebarMenuButton tooltip={item.title} />}
                    >
                      <item.icon className="size-4" />
                      <span>{item.title}</span>
                      <ChevronRight className="ml-auto transition-transform duration-200" />
                    </CollapsibleTrigger>
                    <CollapsibleContent>
                      <SidebarMenuSub>
                        {item.items.map((sub) => (
                          <SidebarMenuSubItem key={sub.url}>
                            <SidebarMenuSubButton
                              render={<Link href={sub.url} />}
                              isActive={isActive(sub.url)}
                            >
                              <span>{sub.title}</span>
                            </SidebarMenuSubButton>
                          </SidebarMenuSubItem>
                        ))}
                      </SidebarMenuSub>
                    </CollapsibleContent>
                  </SidebarMenuItem>
                </Collapsible>
              ) : (
                <SidebarMenuItem key={item.title}>
                  <SidebarMenuButton
                    isActive={isActive(item.url)}
                    tooltip={item.title}
                    render={<Link href={item.url} />}
                  >
                    <item.icon className="size-4" />
                    <span>{item.title}</span>
                  </SidebarMenuButton>
                </SidebarMenuItem>
              )
            )}
          </SidebarMenu>
        </SidebarGroup>
      </SidebarContent>

      <SidebarFooter>
        <SidebarMenu>
          <SidebarMenuItem>
            <DropdownMenu>
              <DropdownMenuTrigger
                render={<SidebarMenuButton size="lg" />}
              >
                <Avatar className="size-8">
                  <AvatarImage src={user?.image ?? ""} alt={user?.name ?? ""} />
                  <AvatarFallback className="text-xs">
                    {user?.name?.charAt(0) ?? "U"}
                  </AvatarFallback>
                </Avatar>
                <div className="grid flex-1 text-left text-sm leading-tight">
                  <span className="truncate font-semibold">
                    {user?.name ?? "用户"}
                  </span>
                  <span className="truncate text-xs text-muted-foreground">
                    {user?.email}
                  </span>
                </div>
                <ChevronsUpDown className="ml-auto size-4" />
              </DropdownMenuTrigger>
              <DropdownMenuContent
                side="top"
                align="start"
                className="w-[--radix-dropdown-menu-trigger-width] min-w-56"
              >
                <DropdownMenuLabel>
                  <div className="flex flex-col">
                    <span className="text-sm font-medium">
                      {user?.name ?? "用户"}
                    </span>
                    <span className="text-xs text-muted-foreground">
                      {user?.email}
                    </span>
                  </div>
                </DropdownMenuLabel>
                <DropdownMenuSeparator />
                <DropdownMenuItem
                  onClick={async () => {
                    await authClient.signOut();
                    router.push("/login");
                    router.refresh();
                  }}
                >
                  <LogOut className="size-4" />
                  退出登录
                </DropdownMenuItem>
              </DropdownMenuContent>
            </DropdownMenu>
          </SidebarMenuItem>
        </SidebarMenu>
      </SidebarFooter>

      <SidebarRail />
    </Sidebar>
  );
}