/**
 * Favicon SVGs based on Material Design Icons (@mdi/svg), Apache License 2.0.
 * https://github.com/Templarian/MaterialDesign
 */

import { extensionOf } from '@/config/app';

export type FaviconKind =
  | 'home'
  | 'pdf'
  | 'word'
  | 'excel'
  | 'powerpoint'
  | 'hwp'
  | 'sketch'
  | 'code'
  | 'diagram'
  | 'cad'
  | 'model3d'
  | 'text'
  | 'csv'
  | 'file';

export const ICON_PATHS: Record<FaviconKind, string> = {
  home: 'M9,13H15V19H18V10L12,5.5L6,10V19H9V13M4,21V9L12,3L20,9V21H4Z',
  pdf: 'M19 3H5C3.9 3 3 3.9 3 5V19C3 20.1 3.9 21 5 21H19C20.1 21 21 20.1 21 19V5C21 3.9 20.1 3 19 3M9.5 11.5C9.5 12.3 8.8 13 8 13H7V15H5.5V9H8C8.8 9 9.5 9.7 9.5 10.5V11.5M14.5 13.5C14.5 14.3 13.8 15 13 15H10.5V9H13C13.8 9 14.5 9.7 14.5 10.5V13.5M18.5 10.5H17V11.5H18.5V13H17V15H15.5V9H18.5V10.5M12 10.5H13V13.5H12V10.5M7 10.5H8V11.5H7V10.5Z',
  word: 'M15.5,17H14L12,9.5L10,17H8.5L6.1,7H7.8L9.34,14.5L11.3,7H12.7L14.67,14.5L16.2,7H17.9M19,3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V5C21,3.89 20.1,3 19,3Z',
  excel:
    'M16.2,17H14.2L12,13.2L9.8,17H7.8L11,12L7.8,7H9.8L12,10.8L14.2,7H16.2L13,12M19,3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V5C21,3.89 20.1,3 19,3Z',
  powerpoint:
    'M9.8,13.4H12.3C13.8,13.4 14.46,13.12 15.1,12.58C15.74,12.03 16,11.25 16,10.23C16,9.26 15.75,8.5 15.1,7.88C14.45,7.29 13.83,7 12.3,7H8V17H9.8V13.4M19,3A2,2 0 0,1 21,5V19A2,2 0 0,1 19,21H5A2,2 0 0,1 3,19V5C3,3.89 3.9,3 5,3H19M9.8,12V8.4H12.1C12.76,8.4 13.27,8.65 13.6,9C13.93,9.35 14.1,9.72 14.1,10.24C14.1,10.8 13.92,11.19 13.6,11.5C13.28,11.81 12.9,12 12.22,12H9.8Z',
  hwp: 'M17,4V10L15,8L13,10V4H9V20H19V4H17M3,7V5H5V4C5,2.89 5.9,2 7,2H19C20.05,2 21,2.95 21,4V20C21,21.05 20.05,22 19,22H7C5.95,22 5,21.05 5,20V19H3V17H5V13H3V11H5V7H3M5,5V7H7V5H5M5,19H7V17H5V19M5,13H7V11H5V13Z',
  sketch: 'M3 17.25V21H6.75L17.81 9.94L14.06 6.19L3 17.25M20.71 7.04C21.1 6.65 21.1 6 20.71 5.63L18.37 3.29C18 2.9 17.35 2.9 16.96 3.29L15.13 5.12L18.88 8.87L20.71 7.04Z',
  code: 'M8 3L6.59 4.41L10.17 8L6.59 11.59L8 13L13 8L8 3M14 11V13H22V11H14M5 19H19V17H5V19Z',
  diagram: 'M4 3H10V9H8V11H16V9H14V3H20V9H18V13H13V15H16V21H8V15H11V13H6V9H4V3M6 5V7H8V5H6M16 5V7H18V5H16M10 17V19H14V17H10Z',
  cad: 'M3 3H21V21H3V3M5 5V19H19V5H5M7 17V15H9V13H11V11H13V9H15V7H17V17H7Z',
  model3d: 'M12 2L21 7V17L12 22L3 17V7L12 2M12 4.3L5.4 8L12 11.7L18.6 8L12 4.3M5 9.7V15.8L11 19.1V13.1L5 9.7M13 19.1L19 15.8V9.7L13 13.1V19.1Z',
  text: 'M6,2A2,2 0 0,0 4,4V20A2,2 0 0,0 6,22H18A2,2 0 0,0 20,20V8L14,2H6M6,4H13V9H18V20H6V4M8,12V14H16V12H8M8,16V18H13V16H8Z',
  csv: 'M14 2H6C4.9 2 4 2.9 4 4V20C4 21.1 4.9 22 6 22H18C19.1 22 20 21.1 20 20V8L14 2M18 20H6V4H13V9H18V20M10 19L12 15H9V10H15V15L13 19H10',
  file: 'M6,2A2,2 0 0,0 4,4V20A2,2 0 0,0 6,22H18A2,2 0 0,0 20,20V8L14,2H6M6,4H13V9H18V20H6V4M8,12V14H16V12H8M8,16V18H13V16H8Z',
};

export const ICON_COLORS: Record<FaviconKind, string> = {
  home: '#0f6cbd',
  pdf: '#e53935',
  word: '#1e88e5',
  excel: '#43a047',
  powerpoint: '#fb8c00',
  hwp: '#00897b',
  sketch: '#7b61a8',
  code: '#d97706',
  diagram: '#2e7d8a',
  cad: '#5c6bc0',
  model3d: '#6d4c41',
  text: '#607d8b',
  csv: '#00838f',
  file: '#546e7a',
};

const EXT_KIND: Record<string, FaviconKind> = {
  pdf: 'pdf',
  doc: 'word',
  docx: 'word',
  odt: 'word',
  rtf: 'word',
  dotx: 'word',
  xls: 'excel',
  xlsx: 'excel',
  ods: 'excel',
  xltx: 'excel',
  csv: 'csv',
  ppt: 'powerpoint',
  pptx: 'powerpoint',
  odp: 'powerpoint',
  potx: 'powerpoint',
  hwp: 'hwp',
  hwpx: 'hwp',
  excalidraw: 'sketch',
  mmd: 'code',
  mermaid: 'code',
  drawio: 'diagram',
  xml: 'diagram',
  dxf: 'cad',
  dwg: 'cad',
  '3dm': 'model3d',
  '3ds': 'model3d',
  '3mf': 'model3d',
  amf: 'model3d',
  bim: 'model3d',
  brp: 'model3d',
  brep: 'model3d',
  dae: 'model3d',
  fbx: 'model3d',
  fcstd: 'model3d',
  glb: 'model3d',
  gltf: 'model3d',
  ifc: 'model3d',
  igs: 'model3d',
  iges: 'model3d',
  stp: 'model3d',
  step: 'model3d',
  stl: 'model3d',
  obj: 'model3d',
  off: 'model3d',
  ply: 'model3d',
  wrl: 'model3d',
  zip: 'model3d',
  txt: 'text',
};

function toDataUri(kind: FaviconKind): string {
  const svg = `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="${ICON_COLORS[kind]}" d="${ICON_PATHS[kind]}"/></svg>`;
  return `data:image/svg+xml,${encodeURIComponent(svg)}`;
}

const CACHE = new Map<FaviconKind, string>();

export function iconKindForExtension(ext: string): FaviconKind {
  return EXT_KIND[ext] ?? 'file';
}

export function faviconHrefFor(filename?: string | null): string {
  const name = filename?.trim();
  let kind: FaviconKind = 'home';
  if (name) {
    const ext = extensionOf(name);
    kind = ext ? (EXT_KIND[ext] ?? 'file') : 'home';
  }
  let href = CACHE.get(kind);
  if (!href) {
    href = toDataUri(kind);
    CACHE.set(kind, href);
  }
  return href;
}

export function setFavicon(href: string) {
  let link = document.querySelector<HTMLLinkElement>("link[rel='icon']");
  if (!link) {
    link = document.createElement('link');
    link.rel = 'icon';
    document.head.appendChild(link);
  }
  link.type = 'image/svg+xml';
  // Bust stubborn tab caches when switching between data URIs
  if (link.href !== href) {
    link.href = href;
  }
}