import { a as withoutTrailingSlash, g as getQuery$1, b as withoutBase } from '../shared/nuxi.af709901.mjs';
import { d as destr } from '../shared/nuxi.e90bf846.mjs';

const NODE_TYPES = {
  NORMAL: 0,
  WILDCARD: 1,
  PLACEHOLDER: 2
};

function createRouter$1(options = {}) {
  const ctx = {
    options,
    rootNode: createRadixNode(),
    staticRoutesMap: {}
  };
  const normalizeTrailingSlash = (p) => options.strictTrailingSlash ? p : p.replace(/\/$/, "") || "/";
  if (options.routes) {
    for (const path in options.routes) {
      insert(ctx, normalizeTrailingSlash(path), options.routes[path]);
    }
  }
  return {
    ctx,
    lookup: (path) => lookup(ctx, normalizeTrailingSlash(path)),
    insert: (path, data) => insert(ctx, normalizeTrailingSlash(path), data),
    remove: (path) => remove(ctx, normalizeTrailingSlash(path))
  };
}
function lookup(ctx, path) {
  const staticPathNode = ctx.staticRoutesMap[path];
  if (staticPathNode) {
    return staticPathNode.data;
  }
  const sections = path.split("/");
  const params = {};
  let paramsFound = false;
  let wildcardNode = null;
  let node = ctx.rootNode;
  let wildCardParam = null;
  for (let i = 0; i < sections.length; i++) {
    const section = sections[i];
    if (node.wildcardChildNode !== null) {
      wildcardNode = node.wildcardChildNode;
      wildCardParam = sections.slice(i).join("/");
    }
    const nextNode = node.children.get(section);
    if (nextNode !== void 0) {
      node = nextNode;
    } else {
      node = node.placeholderChildNode;
      if (node !== null) {
        params[node.paramName] = section;
        paramsFound = true;
      } else {
        break;
      }
    }
  }
  if ((node === null || node.data === null) && wildcardNode !== null) {
    node = wildcardNode;
    params[node.paramName || "_"] = wildCardParam;
    paramsFound = true;
  }
  if (!node) {
    return null;
  }
  if (paramsFound) {
    return {
      ...node.data,
      params: paramsFound ? params : void 0
    };
  }
  return node.data;
}
function insert(ctx, path, data) {
  let isStaticRoute = true;
  const sections = path.split("/");
  let node = ctx.rootNode;
  let _unnamedPlaceholderCtr = 0;
  for (let i = 0; i < sections.length; i++) {
    const section = sections[i];
    let childNode;
    if (childNode = node.children.get(section)) {
      node = childNode;
    } else {
      const type = getNodeType(section);
      childNode = createRadixNode({ type, parent: node });
      node.children.set(section, childNode);
      if (type === NODE_TYPES.PLACEHOLDER) {
        childNode.paramName = section === "*" ? `_${_unnamedPlaceholderCtr++}` : section.slice(1);
        node.placeholderChildNode = childNode;
        isStaticRoute = false;
      } else if (type === NODE_TYPES.WILDCARD) {
        node.wildcardChildNode = childNode;
        childNode.paramName = section.substring(3) || "_";
        isStaticRoute = false;
      }
      node = childNode;
    }
  }
  node.data = data;
  if (isStaticRoute === true) {
    ctx.staticRoutesMap[path] = node;
  }
  return node;
}
function remove(ctx, path) {
  let success = false;
  const sections = path.split("/");
  let node = ctx.rootNode;
  for (let i = 0; i < sections.length; i++) {
    const section = sections[i];
    node = node.children.get(section);
    if (!node) {
      return success;
    }
  }
  if (node.data) {
    const lastSection = sections[sections.length - 1];
    node.data = null;
    if (Object.keys(node.children).length === 0) {
      const parentNode = node.parent;
      delete parentNode[lastSection];
      parentNode.wildcardChildNode = null;
      parentNode.placeholderChildNode = null;
    }
    success = true;
  }
  return success;
}
function createRadixNode(options = {}) {
  return {
    type: options.type || NODE_TYPES.NORMAL,
    parent: options.parent || null,
    children: /* @__PURE__ */ new Map(),
    data: options.data || null,
    paramName: options.paramName || null,
    wildcardChildNode: null,
    placeholderChildNode: null
  };
}
function getNodeType(str) {
  if (str.startsWith("**")) {
    return NODE_TYPES.WILDCARD;
  }
  if (str[0] === ":" || str === "*") {
    return NODE_TYPES.PLACEHOLDER;
  }
  return NODE_TYPES.NORMAL;
}

const decode = decodeURIComponent;
const encode = encodeURIComponent;
const pairSplitRegExp = /; */;
const fieldContentRegExp = /^[\u0009\u0020-\u007e\u0080-\u00ff]+$/;
function parse(str, options) {
  if (typeof str !== "string") {
    throw new TypeError("argument str must be a string");
  }
  let obj = {};
  let opt = options || {};
  let pairs = str.split(pairSplitRegExp);
  let dec = opt.decode || decode;
  for (let i = 0; i < pairs.length; i++) {
    let pair = pairs[i];
    let eq_idx = pair.indexOf("=");
    if (eq_idx < 0) {
      continue;
    }
    let key = pair.substr(0, eq_idx).trim();
    let val = pair.substr(++eq_idx, pair.length).trim();
    if (val[0] == '"') {
      val = val.slice(1, -1);
    }
    if (obj[key] == void 0) {
      obj[key] = tryDecode(val, dec);
    }
  }
  return obj;
}
function serialize(name, value, options) {
  let opt = options || {};
  let enc = opt.encode || encode;
  if (typeof enc !== "function") {
    throw new TypeError("option encode is invalid");
  }
  if (!fieldContentRegExp.test(name)) {
    throw new TypeError("argument name is invalid");
  }
  let encodedValue = enc(value);
  if (encodedValue && !fieldContentRegExp.test(encodedValue)) {
    throw new TypeError("argument val is invalid");
  }
  let str = name + "=" + encodedValue;
  if (opt.maxAge != null) {
    let maxAge = opt.maxAge - 0;
    if (isNaN(maxAge) || !isFinite(maxAge)) {
      throw new TypeError("option maxAge is invalid");
    }
    str += "; Max-Age=" + Math.floor(maxAge);
  }
  if (opt.domain) {
    if (!fieldContentRegExp.test(opt.domain)) {
      throw new TypeError("option domain is invalid");
    }
    str += "; Domain=" + opt.domain;
  }
  if (opt.path) {
    if (!fieldContentRegExp.test(opt.path)) {
      throw new TypeError("option path is invalid");
    }
    str += "; Path=" + opt.path;
  }
  if (opt.expires) {
    if (typeof opt.expires.toUTCString !== "function") {
      throw new TypeError("option expires is invalid");
    }
    str += "; Expires=" + opt.expires.toUTCString();
  }
  if (opt.httpOnly) {
    str += "; HttpOnly";
  }
  if (opt.secure) {
    str += "; Secure";
  }
  if (opt.sameSite) {
    let sameSite = typeof opt.sameSite === "string" ? opt.sameSite.toLowerCase() : opt.sameSite;
    switch (sameSite) {
      case true:
        str += "; SameSite=Strict";
        break;
      case "lax":
        str += "; SameSite=Lax";
        break;
      case "strict":
        str += "; SameSite=Strict";
        break;
      case "none":
        str += "; SameSite=None";
        break;
      default:
        throw new TypeError("option sameSite is invalid");
    }
  }
  return str;
}
function tryDecode(str, decode2) {
  try {
    return decode2(str);
  } catch (e) {
    return str;
  }
}

function useBase(base, handler) {
  base = withoutTrailingSlash(base);
  if (!base) {
    return handler;
  }
  return eventHandler((event) => {
    event.node.req.originalUrl = event.node.req.originalUrl || event.node.req.url || "/";
    event.node.req.url = withoutBase(event.node.req.url || "/", base);
    return handler(event);
  });
}

class H3Error extends Error {
  constructor() {
    super(...arguments);
    this.statusCode = 500;
    this.fatal = false;
    this.unhandled = false;
    this.statusMessage = void 0;
  }
  toJSON() {
    const obj = {
      message: this.message,
      statusCode: this.statusCode
    };
    if (this.statusMessage) {
      obj.statusMessage = this.statusMessage;
    }
    if (this.data !== void 0) {
      obj.data = this.data;
    }
    return obj;
  }
}
H3Error.__h3_error__ = true;
function createError(input) {
  if (typeof input === "string") {
    return new H3Error(input);
  }
  if (isError(input)) {
    return input;
  }
  const err = new H3Error(input.message ?? input.statusMessage, input.cause ? { cause: input.cause } : void 0);
  if ("stack" in input) {
    try {
      Object.defineProperty(err, "stack", { get() {
        return input.stack;
      } });
    } catch {
      try {
        err.stack = input.stack;
      } catch {
      }
    }
  }
  if (input.data) {
    err.data = input.data;
  }
  if (input.statusCode) {
    err.statusCode = input.statusCode;
  } else if (input.status) {
    err.statusCode = input.status;
  }
  if (input.statusMessage) {
    err.statusMessage = input.statusMessage;
  } else if (input.statusText) {
    err.statusMessage = input.statusText;
  }
  if (input.fatal !== void 0) {
    err.fatal = input.fatal;
  }
  if (input.unhandled !== void 0) {
    err.unhandled = input.unhandled;
  }
  return err;
}
function sendError(event, error, debug) {
  if (event.node.res.writableEnded) {
    return;
  }
  const h3Error = isError(error) ? error : createError(error);
  const responseBody = {
    statusCode: h3Error.statusCode,
    statusMessage: h3Error.statusMessage,
    stack: [],
    data: h3Error.data
  };
  if (debug) {
    responseBody.stack = (h3Error.stack || "").split("\n").map((l) => l.trim());
  }
  if (event.node.res.writableEnded) {
    return;
  }
  const _code = Number.parseInt(h3Error.statusCode);
  if (_code) {
    event.node.res.statusCode = _code;
  }
  if (h3Error.statusMessage) {
    event.node.res.statusMessage = h3Error.statusMessage;
  }
  event.node.res.setHeader("content-type", MIMES.json);
  event.node.res.end(JSON.stringify(responseBody, void 0, 2));
}
function isError(input) {
  return input?.constructor?.__h3_error__ === true;
}

function getQuery(event) {
  return getQuery$1(event.node.req.url || "");
}
function getRouterParams(event) {
  return event.context.params || {};
}
function getRouterParam(event, name) {
  const params = getRouterParams(event);
  return params[name];
}
function getMethod(event, defaultMethod = "GET") {
  return (event.node.req.method || defaultMethod).toUpperCase();
}
function isMethod(event, expected, allowHead) {
  const method = getMethod(event);
  if (allowHead && method === "HEAD") {
    return true;
  }
  if (typeof expected === "string") {
    if (method === expected) {
      return true;
    }
  } else if (expected.includes(method)) {
    return true;
  }
  return false;
}
function assertMethod(event, expected, allowHead) {
  if (!isMethod(event, expected, allowHead)) {
    throw createError({
      statusCode: 405,
      statusMessage: "HTTP method is not allowed."
    });
  }
}
function getRequestHeaders(event) {
  const _headers = {};
  for (const key in event.node.req.headers) {
    const val = event.node.req.headers[key];
    _headers[key] = Array.isArray(val) ? val.filter(Boolean).join(", ") : val;
  }
  return _headers;
}
const getHeaders = getRequestHeaders;
function getRequestHeader(event, name) {
  const headers = getRequestHeaders(event);
  const value = headers[name.toLowerCase()];
  return value;
}
const getHeader = getRequestHeader;

const RawBodySymbol = Symbol.for("h3RawBody");
const ParsedBodySymbol = Symbol.for("h3ParsedBody");
const PayloadMethods$1 = ["PATCH", "POST", "PUT", "DELETE"];
function readRawBody(event, encoding = "utf8") {
  assertMethod(event, PayloadMethods$1);
  if (RawBodySymbol in event.node.req) {
    const promise2 = Promise.resolve(event.node.req[RawBodySymbol]);
    return encoding ? promise2.then((buff) => buff.toString(encoding)) : promise2;
  }
  if ("body" in event.node.req) {
    return Promise.resolve(event.node.req.body);
  }
  if (!Number.parseInt(event.node.req.headers["content-length"] || "")) {
    return Promise.resolve(void 0);
  }
  const promise = event.node.req[RawBodySymbol] = new Promise((resolve, reject) => {
    const bodyData = [];
    event.node.req.on("error", (err) => {
      reject(err);
    }).on("data", (chunk) => {
      bodyData.push(chunk);
    }).on("end", () => {
      resolve(Buffer.concat(bodyData));
    });
  });
  return encoding ? promise.then((buff) => buff.toString(encoding)) : promise;
}
async function readBody(event) {
  if (ParsedBodySymbol in event.node.req) {
    return event.node.req[ParsedBodySymbol];
  }
  const body = await readRawBody(event);
  if (event.node.req.headers["content-type"] === "application/x-www-form-urlencoded") {
    const parsedForm = Object.fromEntries(new URLSearchParams(body));
    return parsedForm;
  }
  const json = destr(body);
  event.node.req[ParsedBodySymbol] = json;
  return json;
}

function handleCacheHeaders(event, opts) {
  const cacheControls = ["public", ...opts.cacheControls || []];
  let cacheMatched = false;
  if (opts.maxAge !== void 0) {
    cacheControls.push(`max-age=${+opts.maxAge}`, `s-maxage=${+opts.maxAge}`);
  }
  if (opts.modifiedTime) {
    const modifiedTime = new Date(opts.modifiedTime);
    const ifModifiedSince = event.node.req.headers["if-modified-since"];
    event.node.res.setHeader("last-modified", modifiedTime.toUTCString());
    if (ifModifiedSince && new Date(ifModifiedSince) >= opts.modifiedTime) {
      cacheMatched = true;
    }
  }
  if (opts.etag) {
    event.node.res.setHeader("etag", opts.etag);
    const ifNonMatch = event.node.req.headers["if-none-match"];
    if (ifNonMatch === opts.etag) {
      cacheMatched = true;
    }
  }
  event.node.res.setHeader("cache-control", cacheControls.join(", "));
  if (cacheMatched) {
    event.node.res.statusCode = 304;
    event.node.res.end();
    return true;
  }
  return false;
}

const MIMES = {
  html: "text/html",
  json: "application/json"
};

const defer = typeof setImmediate !== "undefined" ? setImmediate : (fn) => fn();
function send(event, data, type) {
  if (type) {
    defaultContentType(event, type);
  }
  return new Promise((resolve) => {
    defer(() => {
      event.node.res.end(data);
      resolve();
    });
  });
}
function defaultContentType(event, type) {
  if (type && !event.node.res.getHeader("content-type")) {
    event.node.res.setHeader("content-type", type);
  }
}
function sendRedirect(event, location, code = 302) {
  event.node.res.statusCode = code;
  event.node.res.setHeader("location", location);
  const encodedLoc = location.replace(/"/g, "%22");
  const html = `<!DOCTYPE html><html><head><meta http-equiv="refresh" content="0; url=${encodedLoc}"></head></html>`;
  return send(event, html, MIMES.html);
}
function getResponseHeaders(event) {
  return event.node.res.getHeaders();
}
function getResponseHeader(event, name) {
  return event.node.res.getHeader(name);
}
function setResponseHeaders(event, headers) {
  for (const [name, value] of Object.entries(headers)) {
    event.node.res.setHeader(name, value);
  }
}
const setHeaders = setResponseHeaders;
function setResponseHeader(event, name, value) {
  event.node.res.setHeader(name, value);
}
const setHeader = setResponseHeader;
function appendResponseHeaders(event, headers) {
  for (const [name, value] of Object.entries(headers)) {
    appendResponseHeader(event, name, value);
  }
}
const appendHeaders = appendResponseHeaders;
function appendResponseHeader(event, name, value) {
  let current = event.node.res.getHeader(name);
  if (!current) {
    event.node.res.setHeader(name, value);
    return;
  }
  if (!Array.isArray(current)) {
    current = [current.toString()];
  }
  event.node.res.setHeader(name, [...current, value]);
}
const appendHeader = appendResponseHeader;
function isStream(data) {
  return data && typeof data === "object" && typeof data.pipe === "function" && typeof data.on === "function";
}
function sendStream(event, data) {
  return new Promise((resolve, reject) => {
    data.pipe(event.node.res);
    data.on("end", () => resolve());
    data.on("error", (error) => reject(createError(error)));
  });
}
const noop = () => {
};
function writeEarlyHints(event, hints, cb = noop) {
  if (!event.node.res.socket) {
    cb();
    return;
  }
  if (typeof hints === "string" || Array.isArray(hints)) {
    hints = { link: hints };
  }
  if (hints.link) {
    hints.link = Array.isArray(hints.link) ? hints.link : hints.link.split(",");
  }
  const headers = Object.entries(hints).map((e) => [e[0].toLowerCase(), e[1]]);
  if (headers.length === 0) {
    cb();
    return;
  }
  let hint = "HTTP/1.1 103 Early Hints";
  if (hints.link) {
    hint += `\r
Link: ${hints.link.join(", ")}`;
  }
  for (const [header, value] of headers) {
    if (header === "link") {
      continue;
    }
    hint += `\r
${header}: ${value}`;
  }
  event.node.res.socket.write(`${hint}\r
\r
`, "utf8", cb);
}

function parseCookies(event) {
  return parse(event.node.req.headers.cookie || "");
}
function getCookie(event, name) {
  return parseCookies(event)[name];
}
function setCookie(event, name, value, serializeOptions) {
  const cookieStr = serialize(name, value, {
    path: "/",
    ...serializeOptions
  });
  appendHeader(event, "Set-Cookie", cookieStr);
}
function deleteCookie(event, name, serializeOptions) {
  setCookie(event, name, "", {
    ...serializeOptions,
    maxAge: 0
  });
}

const PayloadMethods = /* @__PURE__ */ new Set(["PATCH", "POST", "PUT", "DELETE"]);
const ignoredHeaders = /* @__PURE__ */ new Set([
  "transfer-encoding",
  "connection",
  "keep-alive",
  "upgrade",
  "expect"
]);
async function proxyRequest(event, target, opts = {}) {
  const method = getMethod(event);
  let body;
  if (PayloadMethods.has(method)) {
    body = await readRawBody(event).catch(() => void 0);
  }
  const headers = /* @__PURE__ */ Object.create(null);
  const reqHeaders = getRequestHeaders(event);
  for (const name in reqHeaders) {
    if (!ignoredHeaders.has(name)) {
      headers[name] = reqHeaders[name];
    }
  }
  if (opts.fetchOptions?.headers) {
    Object.assign(headers, opts.fetchOptions.headers);
  }
  if (opts.headers) {
    Object.assign(headers, opts.headers);
  }
  return sendProxy(event, target, {
    ...opts,
    fetchOptions: {
      headers,
      method,
      body,
      ...opts.fetchOptions
    }
  });
}
async function sendProxy(event, target, opts = {}) {
  const _fetch = opts.fetch || globalThis.fetch;
  if (!_fetch) {
    throw new Error("fetch is not available. Try importing `node-fetch-native/polyfill` for Node.js.");
  }
  const response = await _fetch(target, {
    headers: opts.headers,
    ...opts.fetchOptions
  });
  event.node.res.statusCode = response.status;
  event.node.res.statusMessage = response.statusText;
  for (const [key, value] of response.headers.entries()) {
    if (key === "content-encoding") {
      continue;
    }
    if (key === "content-length") {
      continue;
    }
    event.node.res.setHeader(key, value);
  }
  try {
    if (response.body) {
      if (opts.sendStream === false) {
        const data = new Uint8Array(await response.arrayBuffer());
        event.node.res.end(data);
      } else {
        for await (const chunk of response.body) {
          event.node.res.write(chunk);
        }
        event.node.res.end();
      }
    }
  } catch (error) {
    event.node.res.end();
    throw error;
  }
}

class H3Headers {
  constructor(init) {
    if (!init) {
      this._headers = {};
    } else if (Array.isArray(init)) {
      this._headers = Object.fromEntries(init.map(([key, value]) => [key.toLowerCase(), value]));
    } else if (init && "append" in init) {
      this._headers = Object.fromEntries(init.entries());
    } else {
      this._headers = Object.fromEntries(Object.entries(init).map(([key, value]) => [key.toLowerCase(), value]));
    }
  }
  [Symbol.iterator]() {
    return this.entries();
  }
  entries() {
    throw Object.entries(this._headers)[Symbol.iterator]();
  }
  keys() {
    return Object.keys(this._headers)[Symbol.iterator]();
  }
  values() {
    throw Object.values(this._headers)[Symbol.iterator]();
  }
  append(name, value) {
    const _name = name.toLowerCase();
    this.set(_name, [this.get(_name), value].filter(Boolean).join(", "));
  }
  delete(name) {
    delete this._headers[name.toLowerCase()];
  }
  get(name) {
    return this._headers[name.toLowerCase()];
  }
  has(name) {
    return name.toLowerCase() in this._headers;
  }
  set(name, value) {
    this._headers[name.toLowerCase()] = String(value);
  }
  forEach(callbackfn) {
    for (const [key, value] of Object.entries(this._headers)) {
      callbackfn(value, key, this);
    }
  }
}

class H3Response {
  constructor(body = null, init = {}) {
    this.body = null;
    this.type = "default";
    this.bodyUsed = false;
    this.headers = new H3Headers(init.headers);
    this.status = init.status ?? 200;
    this.statusText = init.statusText || "";
    this.redirected = !!init.status && [301, 302, 307, 308].includes(init.status);
    this._body = body;
    this.url = "";
    this.ok = this.status < 300 && this.status > 199;
  }
  clone() {
    return new H3Response(this.body, {
      headers: this.headers,
      status: this.status,
      statusText: this.statusText
    });
  }
  arrayBuffer() {
    return Promise.resolve(this._body);
  }
  blob() {
    return Promise.resolve(this._body);
  }
  formData() {
    return Promise.resolve(this._body);
  }
  json() {
    return Promise.resolve(this._body);
  }
  text() {
    return Promise.resolve(this._body);
  }
}

class H3Event {
  constructor(req, res) {
    this["__is_event__"] = true;
    this.context = {};
    this.node = { req, res };
  }
  get path() {
    return this.req.url;
  }
  get req() {
    return this.node.req;
  }
  get res() {
    return this.node.res;
  }
  respondWith(r) {
    Promise.resolve(r).then((_response) => {
      if (this.res.writableEnded) {
        return;
      }
      const response = _response instanceof H3Response ? _response : new H3Response(_response);
      for (const [key, value] of response.headers.entries()) {
        this.res.setHeader(key, value);
      }
      if (response.status) {
        this.res.statusCode = response.status;
      }
      if (response.statusText) {
        this.res.statusMessage = response.statusText;
      }
      if (response.redirected) {
        this.res.setHeader("location", response.url);
      }
      if (!response._body) {
        return this.res.end();
      }
      if (typeof response._body === "string" || "buffer" in response._body || "byteLength" in response._body) {
        return this.res.end(response._body);
      }
      if (!response.headers.has("content-type")) {
        response.headers.set("content-type", MIMES.json);
      }
      this.res.end(JSON.stringify(response._body));
    });
  }
}
function isEvent(input) {
  return "__is_event__" in input;
}
function createEvent(req, res) {
  return new H3Event(req, res);
}

function defineEventHandler(handler) {
  handler.__is_handler__ = true;
  return handler;
}
const eventHandler = defineEventHandler;
function isEventHandler(input) {
  return "__is_handler__" in input;
}
function toEventHandler(input, _, _route) {
  if (!isEventHandler(input)) {
    console.warn(
      "[h3] Implicit event handler conversion is deprecated. Use `eventHandler()` or `fromNodeMiddleware()` to define event handlers.",
      _route && _route !== "/" ? `
     Route: ${_route}` : "",
      `
     Handler: ${input}`
    );
  }
  return input;
}
function dynamicEventHandler(initial) {
  let current = initial;
  const wrapper = eventHandler((event) => {
    if (current) {
      return current(event);
    }
  });
  wrapper.set = (handler) => {
    current = handler;
  };
  return wrapper;
}
function defineLazyEventHandler(factory) {
  let _promise;
  let _resolved;
  const resolveHandler = () => {
    if (_resolved) {
      return Promise.resolve(_resolved);
    }
    if (!_promise) {
      _promise = Promise.resolve(factory()).then((r) => {
        const handler = r.default || r;
        if (typeof handler !== "function") {
          throw new TypeError("Invalid lazy handler result. It should be a function:", handler);
        }
        _resolved = toEventHandler(r.default || r);
        return _resolved;
      });
    }
    return _promise;
  };
  return eventHandler((event) => {
    if (_resolved) {
      return _resolved(event);
    }
    return resolveHandler().then((handler) => handler(event));
  });
}
const lazyEventHandler = defineLazyEventHandler;

function createApp(options = {}) {
  const stack = [];
  const handler = createAppEventHandler(stack, options);
  const app = {
    use: (arg1, arg2, arg3) => use(app, arg1, arg2, arg3),
    handler,
    stack,
    options
  };
  return app;
}
function use(app, arg1, arg2, arg3) {
  if (Array.isArray(arg1)) {
    for (const i of arg1) {
      use(app, i, arg2, arg3);
    }
  } else if (Array.isArray(arg2)) {
    for (const i of arg2) {
      use(app, arg1, i, arg3);
    }
  } else if (typeof arg1 === "string") {
    app.stack.push(normalizeLayer({ ...arg3, route: arg1, handler: arg2 }));
  } else if (typeof arg1 === "function") {
    app.stack.push(normalizeLayer({ ...arg2, route: "/", handler: arg1 }));
  } else {
    app.stack.push(normalizeLayer({ ...arg1 }));
  }
  return app;
}
function createAppEventHandler(stack, options) {
  const spacing = options.debug ? 2 : void 0;
  return eventHandler(async (event) => {
    event.node.req.originalUrl = event.node.req.originalUrl || event.node.req.url || "/";
    const reqUrl = event.node.req.url || "/";
    for (const layer of stack) {
      if (layer.route.length > 1) {
        if (!reqUrl.startsWith(layer.route)) {
          continue;
        }
        event.node.req.url = reqUrl.slice(layer.route.length) || "/";
      } else {
        event.node.req.url = reqUrl;
      }
      if (layer.match && !layer.match(event.node.req.url, event)) {
        continue;
      }
      const val = await layer.handler(event);
      if (event.node.res.writableEnded) {
        return;
      }
      const type = typeof val;
      if (type === "string") {
        return send(event, val, MIMES.html);
      } else if (isStream(val)) {
        return sendStream(event, val);
      } else if (val === null) {
        event.node.res.statusCode = 204;
        return send(event);
      } else if (type === "object" || type === "boolean" || type === "number") {
        if (val.buffer) {
          return send(event, val);
        } else if (val instanceof Error) {
          throw createError(val);
        } else {
          return send(event, JSON.stringify(val, void 0, spacing), MIMES.json);
        }
      }
    }
    if (!event.node.res.writableEnded) {
      throw createError({
        statusCode: 404,
        statusMessage: `Cannot find any route matching ${event.node.req.url || "/"}.`
      });
    }
  });
}
function normalizeLayer(input) {
  let handler = input.handler;
  if (handler.handler) {
    handler = handler.handler;
  }
  if (input.lazy) {
    handler = lazyEventHandler(handler);
  } else if (!isEventHandler(handler)) {
    handler = toEventHandler(handler, void 0, input.route);
  }
  return {
    route: withoutTrailingSlash(input.route),
    match: input.match,
    handler
  };
}

const defineNodeListener = (handler) => handler;
const defineNodeMiddleware = (middleware) => middleware;
function fromNodeMiddleware(handler) {
  if (isEventHandler(handler)) {
    return handler;
  }
  if (typeof handler !== "function") {
    throw new TypeError("Invalid handler. It should be a function:", handler);
  }
  return eventHandler((event) => {
    return callNodeListener(handler, event.node.req, event.node.res);
  });
}
function toNodeListener(app) {
  const toNodeHandle = async function(req, res) {
    const event = createEvent(req, res);
    try {
      await app.handler(event);
    } catch (_error) {
      const error = createError(_error);
      if (!isError(_error)) {
        error.unhandled = true;
      }
      if (app.options.onError) {
        await app.options.onError(error, event);
      } else {
        if (error.unhandled || error.fatal) {
          console.error("[h3]", error.fatal ? "[fatal]" : "[unhandled]", error);
        }
        await sendError(event, error, !!app.options.debug);
      }
    }
  };
  return toNodeHandle;
}
function promisifyNodeListener(handler) {
  return function(req, res) {
    return callNodeListener(handler, req, res);
  };
}
function callNodeListener(handler, req, res) {
  const isMiddleware = handler.length > 2;
  return new Promise((resolve, reject) => {
    const next = (err) => {
      if (isMiddleware) {
        res.off("close", next);
        res.off("error", next);
      }
      return err ? reject(createError(err)) : resolve(void 0);
    };
    try {
      const returned = handler(req, res, next);
      if (isMiddleware && returned === void 0) {
        res.once("close", next);
        res.once("error", next);
      } else {
        resolve(returned);
      }
    } catch (error) {
      next(error);
    }
  });
}

const RouterMethods = ["connect", "delete", "get", "head", "options", "post", "put", "trace", "patch"];
function createRouter(opts = {}) {
  const _router = createRouter$1({});
  const routes = {};
  const router = {};
  const addRoute = (path, handler, method) => {
    let route = routes[path];
    if (!route) {
      routes[path] = route = { handlers: {} };
      _router.insert(path, route);
    }
    if (Array.isArray(method)) {
      for (const m of method) {
        addRoute(path, handler, m);
      }
    } else {
      route.handlers[method] = toEventHandler(handler, void 0, path);
    }
    return router;
  };
  router.use = router.add = (path, handler, method) => addRoute(path, handler, method || "all");
  for (const method of RouterMethods) {
    router[method] = (path, handle) => router.add(path, handle, method);
  }
  router.handler = eventHandler((event) => {
    let path = event.node.req.url || "/";
    const qIndex = path.indexOf("?");
    if (qIndex !== -1) {
      path = path.slice(0, Math.max(0, qIndex));
    }
    const matched = _router.lookup(path);
    if (!matched) {
      if (opts.preemtive) {
        throw createError({
          statusCode: 404,
          name: "Not Found",
          statusMessage: `Cannot find any route matching ${event.node.req.url || "/"}.`
        });
      } else {
        return;
      }
    }
    const method = (event.node.req.method || "get").toLowerCase();
    const handler = matched.handlers[method] || matched.handlers.all;
    if (!handler) {
      throw createError({
        statusCode: 405,
        name: "Method Not Allowed",
        statusMessage: `Method ${method} is not allowed on this route.`
      });
    }
    const params = matched.params || {};
    event.context.params = params;
    return handler(event);
  });
  return router;
}

export { H3Error, H3Event, H3Headers, H3Response, MIMES, appendHeader, appendHeaders, appendResponseHeader, appendResponseHeaders, assertMethod, callNodeListener, createApp, createAppEventHandler, createError, createEvent, createRouter, defaultContentType, defineEventHandler, defineLazyEventHandler, defineNodeListener, defineNodeMiddleware, deleteCookie, dynamicEventHandler, eventHandler, fromNodeMiddleware, getCookie, getHeader, getHeaders, getMethod, getQuery, getRequestHeader, getRequestHeaders, getResponseHeader, getResponseHeaders, getRouterParam, getRouterParams, handleCacheHeaders, isError, isEvent, isEventHandler, isMethod, isStream, lazyEventHandler, parseCookies, promisifyNodeListener, proxyRequest, readBody, readRawBody, send, sendError, sendProxy, sendRedirect, sendStream, setCookie, setHeader, setHeaders, setResponseHeader, setResponseHeaders, toEventHandler, toNodeListener, use, useBase, writeEarlyHints };