"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_GROUPS } from "../_lib/settings-navigation";
import type { AdminSettingsNavItem } from "../_lib/types";

const ALL_SETTINGS_ITEMS = ADMIN_SETTINGS_NAV_GROUPS.flatMap((group) => group.items);

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-10 w-full min-w-0 justify-center gap-2 rounded-2xl border px-4"
    : "h-9 shrink-0 gap-2 rounded-full border px-3.5";

  if (item.href) {
    return (
      <Button
        asChild
        className={`${layoutClassName} ${className}`}
        size="sm"
        variant="ghost"
      >
        <Link href={item.href}>
          <Icon className="h-4 w-4" />
          <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-4 w-4" />
      <span className={stretched ? "truncate" : ""}>{item.label}</span>
    </Button>
  );
}

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

  return (
    <div className="rounded-2xl border bg-background px-4 py-3 shadow-sm">
      <div className="flex flex-col gap-2 md:hidden">
        <div className="flex items-center gap-2">
          <Select onValueChange={handleSelectChange} value={activeTab}>
            <SelectTrigger className="h-9 flex-1 border-border/70 bg-background shadow-none">
              <SelectValue placeholder={activeItem?.label || "选择设置项"} />
            </SelectTrigger>
            <SelectContent>
              {ALL_SETTINGS_ITEMS.map((item) => (
                <SelectItem key={item.value} value={item.value}>
                  {item.label}
                </SelectItem>
              ))}
            </SelectContent>
          </Select>

          <Button
            asChild
            className="h-9 rounded-full border-border/70 px-3 text-[13px]"
            size="sm"
            variant="outline"
          >
            <Link href="/">
              <ArrowLeft className="h-3.5 w-3.5" />
              返回
            </Link>
          </Button>
        </div>

        <div className="flex flex-wrap gap-1">
          {ALL_SETTINGS_ITEMS.map((item) => (
            <SettingsQuickAction
              activeTab={activeTab}
              item={item}
              key={item.value}
              onTabChange={onTabChange}
            />
          ))}
        </div>
      </div>

      <div className="hidden min-w-0 items-center gap-3 md:flex">
        <div className="flex min-w-0 flex-1 items-center gap-2 overflow-x-auto">
          {ALL_SETTINGS_ITEMS.map((item) => (
            <div className="min-w-[118px] flex-1" key={item.value}>
              <SettingsQuickAction
                activeTab={activeTab}
                item={item}
                onTabChange={onTabChange}
                stretched
              />
            </div>
          ))}
        </div>

        <Button
          asChild
          className="h-9 shrink-0 rounded-full border-border/70 px-3.5 text-[13px]"
          size="sm"
          variant="outline"
        >
          <Link href="/">
            <ArrowLeft className="h-3.5 w-3.5" />
            返回工作台
          </Link>
        </Button>
      </div>
    </div>
  );
}