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import { esbuild, importmap, resolve, toFileUrl } from "./deps.ts";import { load } from "./src/loader.ts";import { ModuleEntry } from "./src/deno.ts";
interface DenoPluginOptions {  /**   * Specify the path to an import map file to use when resolving import   * specifiers.   */  importMapFile?: string;}
export function denoPlugin(options: DenoPluginOptions = {}): esbuild.Plugin {  return {    name: "deno",    setup(build) {      const infoCache = new Map<string, ModuleEntry>();      let importMap: importmap.ParsedImportMap | null = null;      build.onStart(async function onStart() {        if (options.importMapFile !== undefined) {          const url = toFileUrl(resolve(options.importMapFile));          const txt = await Deno.readTextFile(url);          importMap = importmap.parseFromString(txt, url);        } else {          importMap = null;        }      });      build.onResolve({ filter: /.*/ }, function onResolve(        args: esbuild.OnResolveArgs,      ): esbuild.OnResolveResult | null | undefined {        const resolveDir = args.resolveDir          ? `${toFileUrl(args.resolveDir).href}/`          : "";        const referrer = args.importer || resolveDir;        let resolved: URL;        if (importMap !== null) {          const res = importmap.resolve(            args.path,            importMap,            new URL(referrer) || undefined,          );          resolved = res.resolvedImport;        } else {          resolved = new URL(args.path, referrer);        }        return { path: resolved.href, namespace: "deno" };      });      build.onLoad({ filter: /.*/ }, function onLoad(        args: esbuild.OnLoadArgs,      ): Promise<esbuild.OnLoadResult | null> {        const url = new URL(args.path);        return load(infoCache, url, options);      });    },  };}