import { t as y } from "./dist-2eHC7DTD.mjs";
import { KNOWN_ASSET_RE } from "./constants.mjs";
import { findNearestPackageData, isNodeBuiltin, normalizeModuleId, slash, toArray, toFilePath, withTrailingSlash } from "./utils.mjs";
import { r as withInlineSourcemap } from "./source-map-BFKsz_pY.mjs";
import assert from "node:assert";
import { existsSync, promises } from "node:fs";
import { performance } from "node:perf_hooks";
import process from "node:process";
import { pathToFileURL } from "node:url";
import { createDebug } from "obug";
import { dirname, extname, join, normalize, relative, resolve } from "pathe";
import { version } from "vite";
import * as esModuleLexer from "es-module-lexer";
//#region src/debug.ts
function hashCode(s) {
	return s.split("").reduce((a, b) => {
		a = (a << 5) - a + b.charCodeAt(0);
		return a & a;
	}, 0);
}
var Debugger = class {
	dumpDir;
	initPromise;
	externalizeMap = /* @__PURE__ */ new Map();
	constructor(root, options) {
		this.options = options;
		if (options.dumpModules) this.dumpDir = resolve(root, options.dumpModules === true ? ".vite-node/dump" : options.dumpModules);
		if (this.dumpDir) if (options.loadDumppedModules) console.info(y.gray(`[vite-node] [debug] load modules from ${this.dumpDir}`));
		else console.info(y.gray(`[vite-node] [debug] dump modules to ${this.dumpDir}`));
		this.initPromise = this.clearDump();
	}
	async clearDump() {
		if (!this.dumpDir) return;
		if (!this.options.loadDumppedModules && existsSync(this.dumpDir)) await promises.rm(this.dumpDir, {
			recursive: true,
			force: true
		});
		await promises.mkdir(this.dumpDir, { recursive: true });
	}
	encodeId(id) {
		return `${id.replace(/[^\w@\-]/g, "_").replace(/_+/g, "_")}-${hashCode(id)}.js`;
	}
	async recordExternalize(id, path) {
		if (!this.dumpDir) return;
		this.externalizeMap.set(id, path);
		await this.writeInfo();
	}
	async dumpFile(id, result) {
		if (!result || !this.dumpDir) return;
		await this.initPromise;
		const name = this.encodeId(id);
		return await promises.writeFile(join(this.dumpDir, name), `// ${id.replace(/\0/g, "\\0")}\n${result.code}`, "utf-8");
	}
	async loadDump(id) {
		if (!this.dumpDir) return null;
		await this.initPromise;
		const name = this.encodeId(id);
		const path = join(this.dumpDir, name);
		if (!existsSync(path)) return null;
		return {
			code: (await promises.readFile(path, "utf-8")).replace(/^\/\/.*\n/, ""),
			map: void 0
		};
	}
	async writeInfo() {
		if (!this.dumpDir) return;
		const info = JSON.stringify({
			time: (/* @__PURE__ */ new Date()).toLocaleString(),
			externalize: Object.fromEntries(this.externalizeMap.entries())
		}, null, 2);
		return promises.writeFile(join(this.dumpDir, "info.json"), info, "utf-8");
	}
};
//#endregion
//#region src/externalize.ts
const BUILTIN_EXTENSIONS = new Set([
	".mjs",
	".cjs",
	".node",
	".wasm"
]);
const ESM_EXT_RE = /\.(es|esm|esm-browser|esm-bundler|es6|module)\.js$/;
const ESM_FOLDER_RE = /\/(es|esm)\/(.*\.js)$/;
const defaultInline = [
	/virtual:/,
	/\.[mc]?ts$/,
	/[?&](init|raw|url|inline)\b/,
	KNOWN_ASSET_RE
];
const depsExternal = [/\/node_modules\/.*\.cjs\.js$/, /\/node_modules\/.*\.mjs$/];
function guessCJSversion(id) {
	if (ESM_EXT_RE.test(id)) {
		for (const i of [
			id.replace(ESM_EXT_RE, ".mjs"),
			id.replace(ESM_EXT_RE, ".umd.js"),
			id.replace(ESM_EXT_RE, ".cjs.js"),
			id.replace(ESM_EXT_RE, ".js")
		]) if (existsSync(i)) return i;
	}
	if (ESM_FOLDER_RE.test(id)) {
		for (const i of [
			id.replace(ESM_FOLDER_RE, "/umd/$1"),
			id.replace(ESM_FOLDER_RE, "/cjs/$1"),
			id.replace(ESM_FOLDER_RE, "/lib/$1"),
			id.replace(ESM_FOLDER_RE, "/$1")
		]) if (existsSync(i)) return i;
	}
}
async function isValidNodeImport(id) {
	const extension = extname(id);
	if (BUILTIN_EXTENSIONS.has(extension)) return true;
	if (extension !== ".js") return false;
	id = id.replace("file:///", "");
	if ((await findNearestPackageData(dirname(id))).type === "module") return true;
	if (/\.(?:\w+-)?esm?(?:-\w+)?\.js$|\/esm?\//.test(id)) return false;
	try {
		await esModuleLexer.init;
		const code = await promises.readFile(id, "utf8");
		const [, , , hasModuleSyntax] = esModuleLexer.parse(code);
		return !hasModuleSyntax;
	} catch {
		return false;
	}
}
const _defaultExternalizeCache = /* @__PURE__ */ new Map();
async function shouldExternalize(id, options, cache = _defaultExternalizeCache) {
	if (!cache.has(id)) cache.set(id, _shouldExternalize(id, options));
	return cache.get(id);
}
async function _shouldExternalize(id, options) {
	if (isNodeBuiltin(id)) return id;
	if (id.startsWith("data:") || /^(?:https?:)?\/\//.test(id)) return id;
	id = patchWindowsImportPath(id);
	const moduleDirectories = options?.moduleDirectories || ["/node_modules/"];
	if (matchExternalizePattern(id, moduleDirectories, options?.inline)) return false;
	if (options?.inlineFiles && options?.inlineFiles.includes(id)) return false;
	if (matchExternalizePattern(id, moduleDirectories, options?.external)) return id;
	if (options?.cacheDir && id.includes(options.cacheDir)) return id;
	const isLibraryModule = moduleDirectories.some((dir) => id.includes(dir));
	id = isLibraryModule && options?.fallbackCJS ? guessCJSversion(id) || id : id;
	if (matchExternalizePattern(id, moduleDirectories, defaultInline)) return false;
	if (matchExternalizePattern(id, moduleDirectories, depsExternal)) return id;
	if (isLibraryModule && await isValidNodeImport(id)) return id;
	return false;
}
function matchExternalizePattern(id, moduleDirectories, patterns) {
	if (patterns == null) return false;
	if (patterns === true) return true;
	for (const ex of patterns) if (typeof ex === "string") {
		if (moduleDirectories.some((dir) => id.includes(join(dir, ex)))) return true;
	} else if (ex.test(id)) return true;
	return false;
}
function patchWindowsImportPath(path) {
	if (/^\w:\\/.test(path)) return `file:///${slash(path)}`;
	else if (/^\w:\//.test(path)) return `file:///${path}`;
	else return path;
}
//#endregion
//#region src/server.ts
const debugRequest = createDebug("vite-node:server:request");
var ViteNodeServer = class {
	fetchPromiseMap = {
		ssr: /* @__PURE__ */ new Map(),
		web: /* @__PURE__ */ new Map()
	};
	transformPromiseMap = {
		ssr: /* @__PURE__ */ new Map(),
		web: /* @__PURE__ */ new Map()
	};
	durations = {
		ssr: /* @__PURE__ */ new Map(),
		web: /* @__PURE__ */ new Map()
	};
	existingOptimizedDeps = /* @__PURE__ */ new Set();
	fetchCaches = {
		ssr: /* @__PURE__ */ new Map(),
		web: /* @__PURE__ */ new Map()
	};
	fetchCache = /* @__PURE__ */ new Map();
	externalizeCache = /* @__PURE__ */ new Map();
	debugger;
	constructor(server, options = {}) {
		this.server = server;
		this.options = options;
		const ssrOptions = server.config.ssr;
		options.deps ??= {};
		options.deps.cacheDir = relative(server.config.root, options.deps.cacheDir || server.config.cacheDir);
		if (ssrOptions) {
			if (ssrOptions.noExternal === true) options.deps.inline ??= true;
			else if (options.deps.inline !== true) {
				options.deps.inline ??= [];
				const inline = options.deps.inline;
				options.deps.inline.push(...toArray(ssrOptions.noExternal).filter((dep) => !inline.includes(dep)));
			}
		}
		if (process.env.VITE_NODE_DEBUG_DUMP) options.debug = Object.assign({
			dumpModules: !!process.env.VITE_NODE_DEBUG_DUMP,
			loadDumppedModules: process.env.VITE_NODE_DEBUG_DUMP === "load"
		}, options.debug ?? {});
		if (options.debug) this.debugger = new Debugger(server.config.root, options.debug);
		if (options.deps.inlineFiles) options.deps.inlineFiles = options.deps.inlineFiles.flatMap((file) => {
			if (file.startsWith("file://")) return file;
			const resolvedId = resolve(file);
			return [resolvedId, pathToFileURL(resolvedId).href];
		});
		options.deps.moduleDirectories ??= [];
		const customModuleDirectories = (process.env.VITE_NODE_DEPS_MODULE_DIRECTORIES || process.env.npm_config_VITE_NODE_DEPS_MODULE_DIRECTORIES)?.split(",");
		if (customModuleDirectories) options.deps.moduleDirectories.push(...customModuleDirectories);
		options.deps.moduleDirectories = options.deps.moduleDirectories.map((dir) => {
			if (!dir.startsWith("/")) dir = `/${dir}`;
			if (!dir.endsWith("/")) dir += "/";
			return normalize(dir);
		});
		if (!options.deps.moduleDirectories.includes("/node_modules/")) options.deps.moduleDirectories.push("/node_modules/");
	}
	shouldExternalize(id) {
		return shouldExternalize(id, this.options.deps, this.externalizeCache);
	}
	getTotalDuration() {
		const ssrDurations = [...this.durations.ssr.values()].flat();
		const webDurations = [...this.durations.web.values()].flat();
		return [...ssrDurations, ...webDurations].reduce((a, b) => a + b, 0);
	}
	async ensureExists(id) {
		if (this.existingOptimizedDeps.has(id)) return true;
		if (existsSync(id)) {
			this.existingOptimizedDeps.add(id);
			return true;
		}
		return new Promise((resolve) => {
			setTimeout(() => {
				this.ensureExists(id).then(() => {
					resolve(true);
				});
			});
		});
	}
	async resolveId(id, importer, transformMode) {
		if (importer && !importer.startsWith(withTrailingSlash(this.server.config.root))) importer = resolve(this.server.config.root, importer);
		const mode = transformMode ?? (importer && this.getTransformMode(importer) || "ssr");
		return this.server.pluginContainer.resolveId(id, importer, { ssr: mode === "ssr" });
	}
	getSourceMap(source) {
		source = normalizeModuleId(source);
		const fetchResult = this.fetchCache.get(source)?.result;
		if (fetchResult?.map) return fetchResult.map;
		return (this.server.moduleGraph.getModuleById(source)?.ssrTransformResult)?.map || null;
	}
	assertMode(mode) {
		assert(mode === "web" || mode === "ssr", `"transformMode" can only be "web" or "ssr", received "${mode}".`);
	}
	async fetchModule(id, transformMode) {
		const mode = transformMode || this.getTransformMode(id);
		return this.fetchResult(id, mode).then((r) => {
			return this.options.sourcemap !== true ? {
				...r,
				map: void 0
			} : r;
		});
	}
	async fetchResult(id, mode) {
		const moduleId = normalizeModuleId(id);
		this.assertMode(mode);
		const promiseMap = this.fetchPromiseMap[mode];
		if (!promiseMap.has(moduleId)) promiseMap.set(moduleId, this._fetchModule(moduleId, mode).finally(() => {
			promiseMap.delete(moduleId);
		}));
		return promiseMap.get(moduleId);
	}
	async transformRequest(id, filepath = id, transformMode) {
		const mode = transformMode || this.getTransformMode(id);
		this.assertMode(mode);
		const promiseMap = this.transformPromiseMap[mode];
		if (!promiseMap.has(id)) promiseMap.set(id, this._transformRequest(id, filepath, mode).finally(() => {
			promiseMap.delete(id);
		}));
		return promiseMap.get(id);
	}
	async transformModule(id, transformMode) {
		if (transformMode !== "web") throw new Error("`transformModule` only supports `transformMode: \"web\"`.");
		const normalizedId = normalizeModuleId(id);
		return { code: (this.server.moduleGraph.getModuleById(normalizedId)?.transformResult || await this.server.transformRequest(normalizedId))?.code };
	}
	getTransformMode(id) {
		const withoutQuery = id.split("?")[0];
		if (this.options.transformMode?.web?.some((r) => withoutQuery.match(r))) return "web";
		if (this.options.transformMode?.ssr?.some((r) => withoutQuery.match(r))) return "ssr";
		if (/\.(?:[cm]?[jt]sx?|json)$/.test(withoutQuery)) return "ssr";
		return "web";
	}
	getChangedModule(id, file) {
		const module = this.server.moduleGraph.getModuleById(id) || this.server.moduleGraph.getModuleById(file);
		if (module) return module;
		const _modules = this.server.moduleGraph.getModulesByFile(file);
		if (!_modules || !_modules.size) return null;
		let mod = [..._modules][0];
		let latestMax = -1;
		for (const m of _modules) {
			const timestamp = Math.max(m.lastHMRTimestamp, m.lastInvalidationTimestamp);
			if (timestamp > latestMax) {
				latestMax = timestamp;
				mod = m;
			}
		}
		return mod;
	}
	async _fetchModule(id, transformMode) {
		let result;
		const cacheDir = this.options.deps?.cacheDir;
		if (cacheDir && id.includes(cacheDir)) {
			if (!id.startsWith(withTrailingSlash(this.server.config.root))) id = join(this.server.config.root, id);
			const timeout = setTimeout(() => {
				throw new Error(`ViteNodeServer: ${id} not found. This is a bug, please report it.`);
			}, 5e3);
			await this.ensureExists(id);
			clearTimeout(timeout);
		}
		const { path: filePath } = toFilePath(id, this.server.config.root);
		const moduleNode = this.getChangedModule(id, filePath);
		const cache = this.fetchCaches[transformMode].get(filePath);
		const timestamp = moduleNode ? Math.max(moduleNode.lastHMRTimestamp, moduleNode.lastInvalidationTimestamp) : 0;
		if (cache && (timestamp === 0 || cache.timestamp >= timestamp)) return cache.result;
		const time = Date.now();
		const externalize = await this.shouldExternalize(filePath);
		let duration;
		if (externalize) {
			result = { externalize };
			this.debugger?.recordExternalize(id, externalize);
		} else {
			const start = performance.now();
			const r = await this._transformRequest(id, filePath, transformMode);
			duration = performance.now() - start;
			result = {
				code: r?.code,
				map: r?.map
			};
		}
		const cacheEntry = {
			duration,
			timestamp: time,
			result
		};
		const durations = this.durations[transformMode].get(filePath) || [];
		this.durations[transformMode].set(filePath, [...durations, duration ?? 0]);
		this.fetchCaches[transformMode].set(filePath, cacheEntry);
		this.fetchCache.set(filePath, cacheEntry);
		return result;
	}
	async processTransformResult(filepath, result) {
		return withInlineSourcemap(result, {
			filepath: this.server.moduleGraph.getModuleById(filepath)?.file || filepath,
			root: this.server.config.root,
			noFirstLineMapping: Number(version.split(".")[0]) >= 6
		});
	}
	async _transformRequest(id, filepath, transformMode) {
		debugRequest(id);
		let result = null;
		if (this.options.debug?.loadDumppedModules) {
			result = await this.debugger?.loadDump(id) ?? null;
			if (result) return result;
		}
		if (transformMode === "web") {
			result = await this.server.transformRequest(id);
			if (result) result = await this.server.ssrTransform(result.code, result.map, id);
		} else result = await this.server.transformRequest(id, { ssr: true });
		if ((this.options.sourcemap ?? "inline") === "inline" && result) result = await this.processTransformResult(filepath, result);
		if (this.options.debug?.dumpModules) await this.debugger?.dumpFile(id, result);
		return result;
	}
};
//#endregion
export { guessCJSversion as n, shouldExternalize as r, ViteNodeServer as t };
