Breadcrumb

"use client";

import * as React from "react";
import { IconFolder, IconHome, IconFile } from "@tabler/icons-react";
import { Breadcrumb, BreadcrumbItem } from "@/components/ui/breadcrumb";

import { clsx, type ClassValue } from "clsx";
import { twMerge } from "tailwind-merge";

function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

const primitivePreviewCardSurfaceFrameClass = cn(
  "relative isolate overflow-hidden rounded-2xl",
  "border",
);

const primitivePreviewCardSurfaceLightClass = cn(
  "border-black/[0.08] bg-[#f4f4f5]",
  "[box-shadow:0_1px_2px_rgba(0,0,0,.06),0_8px_24px_-12px_rgba(0,0,0,.08)]",
);

const primitivePreviewCardSurfaceClass = cn(
  primitivePreviewCardSurfaceFrameClass,
  primitivePreviewCardSurfaceLightClass,
  // Full static `dark:bg-[#0a0a0b]` kept for Tailwind content scan - same as
  // PRIMITIVE_PREVIEW_CANVAS_DARK_BG / PRIMITIVE_PREVIEW_CANVAS_DARK.
  "dark:border-white/[0.06] dark:bg-[#0a0a0b] dark:[box-shadow:0_1px_2px_rgba(0,0,0,.4),0_8px_24px_-12px_rgba(0,0,0,.6)]",
);

const wensityCardSurfaceClass = primitivePreviewCardSurfaceClass;

function PreviewPanel({
  children,
  className,
  title,
  subtitle,
}: {
  children: React.ReactNode;
  className?: string;
  title?: string;
  subtitle?: string;
}) {
  return (
    <div
      className={cn(
        wensityCardSurfaceClass,
        "w-full max-w-lg p-5 sm:p-6",
        className,
      )}
    >
      {title ? (
        <div className="mb-5 border-b border-[var(--border)] pb-4">
          <p className="text-sm font-semibold tracking-[-0.015em] text-[var(--foreground)]">
            {title}
          </p>
          {subtitle ? (
            <p className="mt-1 text-[12px] leading-[1.5] text-[var(--muted-foreground)]">
              {subtitle}
            </p>
          ) : null}
        </div>
      ) : null}
      {children}
    </div>
  );
}

/* ── Main Preview ─────────────────────────────────────────── */

export function BreadcrumbPreview() {
  return (
    <PreviewPanel
      title="Breadcrumb"
      subtitle="Wayfinding trail with hover underline animations and smart collapsing."
    >
      <div className="space-y-6">
        {/* Default */}
        <div>
          <p className="mb-3 text-xs font-semibold text-[var(--muted-foreground)] opacity-60">
            Default
          </p>
          <Breadcrumb variant="default">
            <BreadcrumbItem href="#">Home</BreadcrumbItem>
            <BreadcrumbItem href="#">Projects</BreadcrumbItem>
            <BreadcrumbItem href="#">Wensity</BreadcrumbItem>
            <BreadcrumbItem isCurrentPage>Settings</BreadcrumbItem>
          </Breadcrumb>
        </div>

        {/* With Icons */}
        <div>
          <p className="mb-3 text-xs font-semibold text-[var(--muted-foreground)] opacity-60">
            With Icons
          </p>
          <Breadcrumb variant="with-icons">
            <BreadcrumbItem href="#" icon={<IconHome />}>
              Home
            </BreadcrumbItem>
            <BreadcrumbItem href="#" icon={<IconFolder />}>
              Documents
            </BreadcrumbItem>
            <BreadcrumbItem isCurrentPage icon={<IconFile />}>
              report.pdf
            </BreadcrumbItem>
          </Breadcrumb>
        </div>

        {/* Collapsed */}
        <div>
          <p className="mb-3 text-xs font-semibold text-[var(--muted-foreground)] opacity-60">
            Collapsed
          </p>
          <Breadcrumb variant="collapsed" maxItems={3}>
            <BreadcrumbItem href="#">Home</BreadcrumbItem>
            <BreadcrumbItem href="#">Projects</BreadcrumbItem>
            <BreadcrumbItem href="#">Wensity</BreadcrumbItem>
            <BreadcrumbItem href="#">Settings</BreadcrumbItem>
            <BreadcrumbItem href="#">Integrations</BreadcrumbItem>
            <BreadcrumbItem isCurrentPage>OAuth</BreadcrumbItem>
          </Breadcrumb>
        </div>

        {/* Dropdown */}
        <div>
          <p className="mb-3 text-xs font-semibold text-[var(--muted-foreground)] opacity-60">
            Dropdown
          </p>
          <Breadcrumb variant="dropdown" maxItems={3}>
            <BreadcrumbItem href="#">Home</BreadcrumbItem>
            <BreadcrumbItem href="#">Projects</BreadcrumbItem>
            <BreadcrumbItem href="#">Wensity</BreadcrumbItem>
            <BreadcrumbItem href="#">Settings</BreadcrumbItem>
            <BreadcrumbItem isCurrentPage>API Keys</BreadcrumbItem>
          </Breadcrumb>
        </div>
      </div>
    </PreviewPanel>
  );
}

/* ── Card Preview (compact) ──────────────────────────────────── */

/* ── Example: Default ────────────────────────────────────── */

/* ── Example: With Icons ──────────────────────────────────── */

/* ── Example: Collapsed ───────────────────────────────────── */

/* ── Example: Dropdown ────────────────────────────────────── */

/* ── Example: Custom Separator ────────────────────────────── */

export default function Demo() {
  return <BreadcrumbPreview />;
}