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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.import db from "./vendor/mime-db.v1.52.0.ts";import { type DBEntry, extensions } from "./_util.ts";
export type KeyOfDb = keyof typeof db;
/** A map of the media type for a given extension */export const types = new Map<string, KeyOfDb>();
/** Internal function to populate the maps based on the Mime DB. */(function populateMaps() {  const preference = ["nginx", "apache", undefined, "iana"];
  for (const type of Object.keys(db) as KeyOfDb[]) {    const mime = db[type] as DBEntry;    const exts = mime.extensions;
    if (!exts || !exts.length) {      continue;    }
    // @ts-ignore work around denoland/dnt#148    extensions.set(type, exts);
    for (const ext of exts) {      const current = types.get(ext);      if (current) {        const from = preference.indexOf((db[current] as DBEntry).source);        const to = preference.indexOf(mime.source);
        if (          current !== "application/octet-stream" &&          (from > to ||            // @ts-ignore work around denoland/dnt#148            (from === to && current.startsWith("application/")))        ) {          continue;        }      }
      types.set(ext, type);    }  }})();
export { db };