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import {	esbuildNative,	esbuildWASM,	dirname,	toFileUrl,	DenoConfigurationFile,	ErrorStackParser,	resolveModuleSpecifier,	denoPlugin,	stripShebang,} from './deps.ts'
export type Module = Record<string, unknown>
export interface ImportModuleOptions {	/** Force the use of the ponyfill even when native dynamic import could be used. */	force?: boolean}
export interface ImportStringOptions {	/** The URL to use as a base for imports and exports in the string. */	base?: URL | string}
const posibleDenoConfigurationFilepaths = [	new URL(`${toFileUrl(Deno.cwd()).href}/deno.json`),	new URL(`${toFileUrl(Deno.cwd()).href}/deno.jsonc`),] as const
const isDeno = navigator.userAgent === `Deno/${Deno.version.deno}`const isDenoCLI = isDeno && Deno.runconst isDenoCompiled = isDenoCLI && dirname(Deno.execPath()) === Deno.cwd()const isDenoDeploy = isDeno && !isDenoCLI && Deno.env.get('DENO_REGION')const esbuild = isDenoCLI ? esbuildNative : esbuildWASMconst AsyncFunction = async function () {}.constructor
const compilerOptions = isDeno ? await getDenoCompilerOptions() : null
const sharedEsbuildOptions: esbuildWASM.BuildOptions = {	jsx: ({		'preserve': 'preserve',		'react': 'transform',		'react-jsx': 'automatic',		'react-jsxdev': 'automatic',		'react-native': 'preserve',	}[compilerOptions?.jsx ?? 'react'] ??		'transform') as esbuildNative.BuildOptions['jsx'],	jsxDev: compilerOptions?.jsx === 'react-jsxdev',	jsxFactory: compilerOptions?.jsxFactory ?? 'h',	jsxFragment: compilerOptions?.jsxFragmentFactory ?? 'Fragment',	jsxImportSource: compilerOptions?.jsxImportSource,	bundle: true,	platform: 'neutral',	write: false,	logLevel: 'silent',	plugins: [denoPlugin({ useActiveImportMap: true })],}
async function readTextFile(filepath: URL | string) {	const base = ErrorStackParser.parse(new Error())[1].fileName	const url = new URL(filepath, base)
	return await (await fetch(url)).text()}
async function getDenoCompilerOptions() {	for (const posibleDenoConfigurationFilepath of posibleDenoConfigurationFilepaths) {		try {			return (				(					JSON.parse(						await readTextFile(posibleDenoConfigurationFilepath),					) as DenoConfigurationFile				).compilerOptions ?? null			)		} catch {}	}
	return null}
async function buildAndEvaluate(options: Record<string, unknown>) {	!isDenoCLI && esbuild.initialize({ worker: !!Worker })
	const buildResult = await esbuild.build(		Object.assign(options, sharedEsbuildOptions),	)
	isDenoCLI && esbuild.stop()
	const { text = '' } = buildResult.outputFiles?.[0] ?? {}	const [before, after = '}'] = text.split('export {')	const body =		stripShebang(before).replaceAll('import.meta', '{}') +		'return {' +		after.replaceAll(			/(?<local>\w+) (?:as) (?<exported>\w+)/gi,			'$<exported>: $<local>',		)
	return AsyncFunction(body)()}
export async function importModule(	moduleName: string,	{ force = false }: ImportModuleOptions = {},): Promise<Module> {	try {		if (force) throw new Error('Forced')
		return await import(moduleName)	} catch (error) {		if (!isDenoCompiled && !isDenoDeploy && error.message !== 'Forced')			throw error
		const base = ErrorStackParser.parse(new Error())[1].fileName		const entryPoint = resolveModuleSpecifier(moduleName, base, {			useActiveImportMap: true,		})
		return await buildAndEvaluate({			entryPoints: [entryPoint],		})	}}
export async function importString(	moduleString: string,
	{		base = ErrorStackParser.parse(new Error())[0].fileName,	}: ImportStringOptions = {},) {	return await buildAndEvaluate({		stdin: {			contents: moduleString,			loader: 'tsx',			sourcefile: base instanceof URL ? base.href : base,		},	})}