import type { ReactNode } from 'react';
import { getModuleIcon, type ModuleIconId } from '@/lib/module-identity';

const GLYPHS: Record<ModuleIconId, ReactNode> = {
  radar: (
    <>
      <path d="M19.07 4.93A10 10 0 0 0 6.99 3.34" />
      <path d="M4 6h.01" />
      <path d="M2.29 9.62A10 10 0 1 0 21.31 8.35" />
      <path d="M16.24 7.76A6 6 0 1 0 8.23 16.67" />
      <path d="M12 18h.01" />
      <path d="M17.99 11.66A6 6 0 0 1 15.77 16.67" />
      <circle cx="12" cy="12" r="2" />
      <path d="m13.41 10.59 5.66-5.66" />
    </>
  ),
  fuel: (
    <>
      <line x1="3" x2="15" y1="22" y2="22" />
      <line x1="4" x2="14" y1="9" y2="9" />
      <path d="M14 22V4a2 2 0 0 0-2-2H6a2 2 0 0 0-2 2v18" />
      <path d="M14 13h2a2 2 0 0 1 2 2v2a2 2 0 0 0 2 2a2 2 0 0 0 2-2V9.83a2 2 0 0 0-.59-1.42L18 5" />
    </>
  ),
  certificate: (
    <>
      <path d="M20 13c0 5-3.5 7.5-7.66 8.95a1 1 0 0 1-.67-.01C7.5 20.5 4 18 4 13V6a1 1 0 0 1 1-1c2 0 4.5-1.2 6.24-2.72a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1z" />
      <path d="m9 12 2 2 4-4" />
    </>
  ),
  globe: (
    <>
      <circle cx="12" cy="12" r="10" />
      <path d="M12 2a14.5 14.5 0 0 0 0 20 14.5 14.5 0 0 0 0-20" />
      <path d="M2 12h20" />
    </>
  ),
  server: (
    <>
      <rect x="2" y="2" width="20" height="8" rx="2" />
      <rect x="2" y="14" width="20" height="8" rx="2" />
      <line x1="6" x2="6.01" y1="6" y2="6" />
      <line x1="6" x2="6.01" y1="18" y2="18" />
    </>
  ),
  tile: (
    <>
      <path d="M21 8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16Z" />
      <path d="m3.3 7 8.7 5 8.7-5" />
      <path d="M12 22V12" />
    </>
  ),
};

interface ModuleTileProps {
  slug: string;
  /** Kantenlaenge in Pixeln (Seitenleiste 20, Karten 40, Seitenkopf 36). */
  size?: number;
  /**
   * `neutral` (Vorgabe): graue Flaeche, dunkelgraues Symbol.
   * `accent`: Akzentflaeche mit passender Schrift — fuer das Modul im Fokus.
   */
  tone?: 'neutral' | 'accent';
  className?: string;
}

/**
 * App-Kachel eines Moduls: abgerundetes Quadrat mit Symbol (siehe
 * lib/module-identity.ts). Kontrast Symbol/Flaeche: neutral hell 7,4:1,
 * dunkel 8,9:1; Akzent ueber `--primary-foreground`, das fuer jede
 * persoenliche Akzentfarbe hell oder dunkel gewaehlt wird (lib/color.ts).
 * Rein dekorativ — der Modulname steht immer als Text daneben.
 */
export function ModuleTile({ slug, size = 20, tone = 'neutral', className = '' }: ModuleTileProps) {
  const icon = getModuleIcon(slug);
  const glyph = Math.round(size * 0.6);
  return (
    <span
      aria-hidden="true"
      data-module-tile={slug}
      data-tone={tone}
      className={`inline-flex shrink-0 items-center justify-center ${
        tone === 'accent' ? 'bg-primary text-primary-foreground' : 'bg-tile text-tile-foreground'
      } ${className}`}
      style={{
        width: size,
        height: size,
        borderRadius: Math.max(4, Math.round(size * 0.24)),
      }}
    >
      <svg
        xmlns="http://www.w3.org/2000/svg"
        width={glyph}
        height={glyph}
        viewBox="0 0 24 24"
        fill="none"
        stroke="currentColor"
        strokeWidth={size <= 24 ? 2.2 : 1.9}
        strokeLinecap="round"
        strokeLinejoin="round"
      >
        {GLYPHS[icon]}
      </svg>
    </span>
  );
}