"use client";

import Link from "next/link";
import { ArrowLeft } from "lucide-react";
import { useRouter } from "next/navigation";
import { Button } from "@/components/ui/button";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";
import { ADMIN_SETTINGS_NAV_ITEMS } from "../_lib/settings-navigation";
import type { AdminSettingsNavItem } from "../_lib/types";

function SettingsQuickAction({
  activeTab,
  item,
  onTabChange,
  stretched = false,
}: {
  activeTab: string;
  item: AdminSettingsNavItem;
  onTabChange: (value: string) => void;
  stretched?: boolean;
}) {
  const Icon = item.icon;
  const className =
    item.value === activeTab
      ? "border-foreground/10 bg-foreground text-background shadow-sm hover:!bg-foreground/90 hover:!text-background dark:border-white/20 dark:bg-white dark:text-black dark:hover:!bg-white/90 dark:hover:!text-black"
      : "border-transparent bg-transparent text-muted-foreground hover:!border-border/80 hover:!bg-zinc-100 hover:!text-foreground dark:hover:!bg-zinc-900/50";
  const layoutClassName = stretched
    ? "h-8 w-full min-w-0 justify-center gap-1.5 rounded-md border px-2.5 text-xs"
    : "h-8 shrink-0 gap-1.5 rounded-md border px-2.5 text-xs";

  if (item.href) {
    return (
      <Button
        asChild
        className={`${layoutClassName} ${className}`}
        size="sm"
        variant="ghost"
      >
        <Link href={item.href}>
          <Icon className="h-3.5 w-3.5" />
          <span className={stretched ? "truncate" : ""}>{item.label}</span>
        </Link>
      </Button>
    );
  }

  return (
    <Button
      className={`${layoutClassName} ${className}`}
      onClick={() => onTabChange(item.value)}
      size="sm"
      variant="ghost"
    >
      <Icon className="h-3.5 w-3.5" />
      <span className={stretched ? "truncate" : ""}>{item.label}</span>
    </Button>
  );
}

export function AdminSettingsNavigation({
  activeTab,
  onTabChange,
}: {
  activeTab: string;
  onTabChange: (value: string) => void;
}) {
  const router = useRouter();
  const activeItem = ADMIN_SETTINGS_NAV_ITEMS.find(
    (item) => item.value === activeTab
  );
  const handleSelectChange = (value: string) => {
    const nextItem = ADMIN_SETTINGS_NAV_ITEMS.find(
      (item) => item.value === value
    );
    if (nextItem?.href) {
      router.push(nextItem.href);
      return;
    }
    onTabChange(value);
  };

  return (
    <nav
      aria-label="系统设置导航"
      className="sticky top-2 z-30 rounded-lg border bg-background/95 p-2 shadow-sm backdrop-blur supports-[backdrop-filter]:bg-background/85"
    >
      <div className="md:hidden">
        <div className="flex items-center gap-2">
          <Select onValueChange={handleSelectChange} value={activeTab}>
            <SelectTrigger className="h-8 flex-1 border-border/70 bg-background shadow-none">
              <SelectValue placeholder={activeItem?.label || "选择设置项"} />
            </SelectTrigger>
            <SelectContent>
              {ADMIN_SETTINGS_NAV_ITEMS.map((item) => (
                <SelectItem key={item.value} value={item.value}>
                  {item.label}
                </SelectItem>
              ))}
            </SelectContent>
          </Select>

          <Button
            asChild
            className="h-8 rounded-md border-border/70 px-2.5 text-xs"
            size="sm"
            variant="outline"
          >
            <Link href="/">
              <ArrowLeft className="h-3.5 w-3.5" />
              返回
            </Link>
          </Button>
        </div>

      </div>

      <div className="hidden min-w-0 grid-cols-7 gap-1 md:grid xl:grid-cols-[repeat(13,minmax(78px,1fr))_auto]">
        {ADMIN_SETTINGS_NAV_ITEMS.map((item) => (
          <SettingsQuickAction
            activeTab={activeTab}
            item={item}
            key={item.value}
            onTabChange={onTabChange}
            stretched
          />
        ))}

        <Button
          asChild
          className="h-8 min-w-0 rounded-md border-border/70 px-2.5 text-xs"
          size="sm"
          variant="outline"
        >
          <Link href="/">
            <ArrowLeft className="h-3.5 w-3.5" />
            返回工作台
          </Link>
        </Button>
      </div>
    </nav>
  );
}