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import { splitBy, trimPrefix } from "./util.ts";
// MIME types for webconst mimeTypes: Record<string, string[]> = {  // application  "application/javascript": ["js", "mjs"],  "application/typescript": ["ts", "mts"],  "application/wasm": ["wasm"],  "application/json": ["json", "map"],  "application/jsonc": ["jsonc"],  "application/json5": ["json5"],  "application/pdf": ["pdf"],  "application/xml": ["xml", "plist", "tmLanguage", "tmTheme"],  "application/zip": ["zip"],  "application/gzip": ["gz"],  "application/tar": ["tar"],  "application/tar+gzip": ["tar.gz", "tgz"],  // text  "text/html": ["html", "htm"],  "text/markdown": ["md", "markdown"],  "text/mdx": ["mdx"],  "text/jsx": ["jsx"],  "text/tsx": ["tsx"],  "text/css": ["css"],  "text/csv": ["csv"],  "text/yaml": ["yaml", "yml"],  "text/plain": [    "txt",    "glsl",    "vue",    "less",    "sass",    "scss",    "stylus",    "styl",  ],  // font  "font/ttf": ["ttf"],  "font/otf": ["otf"],  "font/woff": ["woff"],  "font/woff2": ["woff2"],  "font/collection": ["ttc"],  // image  "image/jpeg": ["jpg", "jpeg"],  "image/png": ["png"],  "image/apng": ["apng"],  "image/gif": ["gif"],  "image/webp": ["webp"],  "image/avif": ["avif"],  "image/svg+xml": ["svg", "svgz"],  "image/x-icon": ["ico"],  // audio  "audio/mp4": ["m4a"],  "audio/mpeg": ["mp3", "m3a"],  "audio/ogg": ["ogg", "oga"],  "audio/wav": ["wav"],  "audio/webm": ["weba"],  // video  "video/mp4": ["mp4", "m4v"],  "video/ogg": ["ogv"],  "video/webm": ["webm"],  "video/x-matroska": ["mkv"],  // shader  "x-shader/x-fragment": ["frag"],  "x-shader/x-vertex": ["vert"],};
const typesMap = Object.entries(mimeTypes).reduce(  (map, [contentType, exts]) => {    exts.forEach((ext) => map.set(ext, contentType));    return map;  },  new Map<string, string>(),);
/** register a new type */export function registerType(ext: string, contentType: string) {  typesMap.set(trimPrefix(ext, "."), contentType);}
/** get the content type by file name */export function getContentType(filename: string): string | undefined {  let [prefix, ext] = splitBy(filename, ".", true);  if (ext === "gz" && prefix.endsWith(".tar")) {    ext = "tar.gz";  }  return typesMap.get(ext);}