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import { esbuild, fromFileUrl } from "../deps.ts";import * as deno from "./deno.ts";
export interface LoadOptions {  importMapFile?: string;}
export async function load(  infoCache: Map<string, deno.ModuleEntry>,  url: URL,  options: LoadOptions,): Promise<esbuild.OnLoadResult | null> {  switch (url.protocol) {    case "http:":    case "https:":    case "data:":      return await loadFromCLI(infoCache, url, options);    case "file:": {      const res = await loadFromCLI(infoCache, url, options);      res.watchFiles = [fromFileUrl(url.href)];      return res;    }  }  return null;}
async function loadFromCLI(  infoCache: Map<string, deno.ModuleEntry>,  specifier: URL,  options: LoadOptions,): Promise<esbuild.OnLoadResult> {  const specifierRaw = specifier.href;  if (!infoCache.has(specifierRaw)) {    const { modules } = await deno.info(specifier, {      importMap: options.importMapFile,    });    for (const module of modules) {      infoCache.set(module.specifier, module);    }  }  const module = infoCache.get(specifierRaw);  if (!module) {    throw new TypeError("Unreachable.");  }
  if (module.error) throw new Error(module.error);  if (!module.local) throw new Error("Module not downloaded yet.");  let loader: esbuild.Loader;  switch (module.mediaType) {    case "JavaScript":      loader = "js";      break;    case "JSX":      loader = "jsx";      break;    case "TypeScript":      loader = "ts";      break;    case "TSX":      loader = "tsx";      break;    default:      throw new Error(`Unhandled media type ${module.mediaType}.`);  }  const contents = await Deno.readFile(module.local);  return { contents, loader };}