import { t as tslibExports, e as eventsExports } from "./tslib-5ac78e72.js";
import { e as commonjsGlobal, j as getDefaultExportFromCjs } from "./_page-a627ea7d.js";
const PARSE_ERROR = "PARSE_ERROR";
const INVALID_REQUEST = "INVALID_REQUEST";
const METHOD_NOT_FOUND = "METHOD_NOT_FOUND";
const INVALID_PARAMS = "INVALID_PARAMS";
const INTERNAL_ERROR = "INTERNAL_ERROR";
const SERVER_ERROR = "SERVER_ERROR";
const RESERVED_ERROR_CODES = [-32700, -32600, -32601, -32602, -32603];
const STANDARD_ERROR_MAP = {
  [PARSE_ERROR]: { code: -32700, message: "Parse error" },
  [INVALID_REQUEST]: { code: -32600, message: "Invalid Request" },
  [METHOD_NOT_FOUND]: { code: -32601, message: "Method not found" },
  [INVALID_PARAMS]: { code: -32602, message: "Invalid params" },
  [INTERNAL_ERROR]: { code: -32603, message: "Internal error" },
  [SERVER_ERROR]: { code: -32e3, message: "Server error" }
};
const DEFAULT_ERROR = SERVER_ERROR;
function isReservedErrorCode(code) {
  return RESERVED_ERROR_CODES.includes(code);
}
function getError(type) {
  if (!Object.keys(STANDARD_ERROR_MAP).includes(type)) {
    return STANDARD_ERROR_MAP[DEFAULT_ERROR];
  }
  return STANDARD_ERROR_MAP[type];
}
function getErrorByCode(code) {
  const match = Object.values(STANDARD_ERROR_MAP).find((e) => e.code === code);
  if (!match) {
    return STANDARD_ERROR_MAP[DEFAULT_ERROR];
  }
  return match;
}
function parseConnectionError(e, url, type) {
  return e.message.includes("getaddrinfo ENOTFOUND") || e.message.includes("connect ECONNREFUSED") ? new Error(`Unavailable ${type} RPC url at ${url}`) : e;
}
var cjs = {};
var crypto = {};
var hasRequiredCrypto;
function requireCrypto() {
  if (hasRequiredCrypto)
    return crypto;
  hasRequiredCrypto = 1;
  Object.defineProperty(crypto, "__esModule", { value: true });
  crypto.isBrowserCryptoAvailable = crypto.getSubtleCrypto = crypto.getBrowerCrypto = void 0;
  function getBrowerCrypto() {
    return (commonjsGlobal === null || commonjsGlobal === void 0 ? void 0 : commonjsGlobal.crypto) || (commonjsGlobal === null || commonjsGlobal === void 0 ? void 0 : commonjsGlobal.msCrypto) || {};
  }
  crypto.getBrowerCrypto = getBrowerCrypto;
  function getSubtleCrypto() {
    const browserCrypto = getBrowerCrypto();
    return browserCrypto.subtle || browserCrypto.webkitSubtle;
  }
  crypto.getSubtleCrypto = getSubtleCrypto;
  function isBrowserCryptoAvailable() {
    return !!getBrowerCrypto() && !!getSubtleCrypto();
  }
  crypto.isBrowserCryptoAvailable = isBrowserCryptoAvailable;
  return crypto;
}
var env = {};
var hasRequiredEnv;
function requireEnv() {
  if (hasRequiredEnv)
    return env;
  hasRequiredEnv = 1;
  Object.defineProperty(env, "__esModule", { value: true });
  env.isBrowser = env.isNode = env.isReactNative = void 0;
  function isReactNative() {
    return typeof document === "undefined" && typeof navigator !== "undefined" && navigator.product === "ReactNative";
  }
  env.isReactNative = isReactNative;
  function isNode() {
    return typeof process !== "undefined" && typeof process.versions !== "undefined" && typeof process.versions.node !== "undefined";
  }
  env.isNode = isNode;
  function isBrowser() {
    return !isReactNative() && !isNode();
  }
  env.isBrowser = isBrowser;
  return env;
}
(function(exports) {
  Object.defineProperty(exports, "__esModule", { value: true });
  const tslib_1 = tslibExports;
  tslib_1.__exportStar(requireCrypto(), exports);
  tslib_1.__exportStar(requireEnv(), exports);
})(cjs);
function payloadId() {
  const date = Date.now() * Math.pow(10, 3);
  const extra = Math.floor(Math.random() * Math.pow(10, 3));
  return date + extra;
}
function formatJsonRpcRequest(method, params, id) {
  return {
    id: id || payloadId(),
    jsonrpc: "2.0",
    method,
    params
  };
}
function formatJsonRpcResult(id, result) {
  return {
    id,
    jsonrpc: "2.0",
    result
  };
}
function formatJsonRpcError(id, error, data) {
  return {
    id,
    jsonrpc: "2.0",
    error: formatErrorMessage(error, data)
  };
}
function formatErrorMessage(error, data) {
  if (typeof error === "undefined") {
    return getError(INTERNAL_ERROR);
  }
  if (typeof error === "string") {
    error = Object.assign(Object.assign({}, getError(SERVER_ERROR)), { message: error });
  }
  if (typeof data !== "undefined") {
    error.data = data;
  }
  if (isReservedErrorCode(error.code)) {
    error = getErrorByCode(error.code);
  }
  return error;
}
class IEvents {
}
class IJsonRpcConnection extends IEvents {
  constructor(opts) {
    super();
  }
}
class IBaseJsonRpcProvider extends IEvents {
  constructor() {
    super();
  }
}
class IJsonRpcProvider extends IBaseJsonRpcProvider {
  constructor(connection) {
    super();
  }
}
const HTTP_REGEX = "^https?:";
const WS_REGEX = "^wss?:";
function getUrlProtocol(url) {
  const matches = url.match(new RegExp(/^\w+:/, "gi"));
  if (!matches || !matches.length)
    return;
  return matches[0];
}
function matchRegexProtocol(url, regex) {
  const protocol = getUrlProtocol(url);
  if (typeof protocol === "undefined")
    return false;
  return new RegExp(regex).test(protocol);
}
function isHttpUrl(url) {
  return matchRegexProtocol(url, HTTP_REGEX);
}
function isWsUrl(url) {
  return matchRegexProtocol(url, WS_REGEX);
}
function isLocalhostUrl(url) {
  return new RegExp("wss?://localhost(:d{2,5})?").test(url);
}
function isJsonRpcPayload(payload) {
  return typeof payload === "object" && "id" in payload && "jsonrpc" in payload && payload.jsonrpc === "2.0";
}
function isJsonRpcRequest(payload) {
  return isJsonRpcPayload(payload) && "method" in payload;
}
function isJsonRpcResponse(payload) {
  return isJsonRpcPayload(payload) && (isJsonRpcResult(payload) || isJsonRpcError(payload));
}
function isJsonRpcResult(payload) {
  return "result" in payload;
}
function isJsonRpcError(payload) {
  return "error" in payload;
}
class JsonRpcProvider extends IJsonRpcProvider {
  constructor(connection) {
    super(connection);
    this.events = new eventsExports.EventEmitter();
    this.hasRegisteredEventListeners = false;
    this.connection = this.setConnection(connection);
    if (this.connection.connected) {
      this.registerEventListeners();
    }
  }
  async connect(connection = this.connection) {
    await this.open(connection);
  }
  async disconnect() {
    await this.close();
  }
  on(event, listener) {
    this.events.on(event, listener);
  }
  once(event, listener) {
    this.events.once(event, listener);
  }
  off(event, listener) {
    this.events.off(event, listener);
  }
  removeListener(event, listener) {
    this.events.removeListener(event, listener);
  }
  async request(request, context) {
    return this.requestStrict(formatJsonRpcRequest(request.method, request.params || []), context);
  }
  async requestStrict(request, context) {
    return new Promise(async (resolve, reject) => {
      if (!this.connection.connected) {
        try {
          await this.open();
        } catch (e) {
          reject(e);
        }
      }
      this.events.on(`${request.id}`, (response) => {
        if (isJsonRpcError(response)) {
          reject(response.error);
        } else {
          resolve(response.result);
        }
      });
      try {
        await this.connection.send(request, context);
      } catch (e) {
        reject(e);
      }
    });
  }
  setConnection(connection = this.connection) {
    return connection;
  }
  onPayload(payload) {
    this.events.emit("payload", payload);
    if (isJsonRpcResponse(payload)) {
      this.events.emit(`${payload.id}`, payload);
    } else {
      this.events.emit("message", {
        type: payload.method,
        data: payload.params
      });
    }
  }
  async open(connection = this.connection) {
    if (this.connection === connection && this.connection.connected)
      return;
    if (this.connection.connected)
      this.close();
    if (typeof connection === "string") {
      await this.connection.open(connection);
      connection = this.connection;
    }
    this.connection = this.setConnection(connection);
    await this.connection.open();
    this.registerEventListeners();
    this.events.emit("connect");
  }
  async close() {
    await this.connection.close();
  }
  registerEventListeners() {
    if (this.hasRegisteredEventListeners)
      return;
    this.connection.on("payload", (payload) => this.onPayload(payload));
    this.connection.on("close", () => this.events.emit("disconnect"));
    this.connection.on("error", (error) => this.events.emit("error", error));
    this.hasRegisteredEventListeners = true;
  }
}
var browserPonyfillExports = {};
var browserPonyfill = {
  get exports() {
    return browserPonyfillExports;
  },
  set exports(v) {
    browserPonyfillExports = v;
  }
};
(function(module, exports) {
  var global = typeof self !== "undefined" ? self : commonjsGlobal;
  var __self__ = function() {
    function F() {
      this.fetch = false;
      this.DOMException = global.DOMException;
    }
    F.prototype = global;
    return new F();
  }();
  (function(self2) {
    (function(exports2) {
      var support = {
        searchParams: "URLSearchParams" in self2,
        iterable: "Symbol" in self2 && "iterator" in Symbol,
        blob: "FileReader" in self2 && "Blob" in self2 && function() {
          try {
            new Blob();
            return true;
          } catch (e) {
            return false;
          }
        }(),
        formData: "FormData" in self2,
        arrayBuffer: "ArrayBuffer" in self2
      };
      function isDataView(obj) {
        return obj && DataView.prototype.isPrototypeOf(obj);
      }
      if (support.arrayBuffer) {
        var viewClasses = [
          "[object Int8Array]",
          "[object Uint8Array]",
          "[object Uint8ClampedArray]",
          "[object Int16Array]",
          "[object Uint16Array]",
          "[object Int32Array]",
          "[object Uint32Array]",
          "[object Float32Array]",
          "[object Float64Array]"
        ];
        var isArrayBufferView = ArrayBuffer.isView || function(obj) {
          return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1;
        };
      }
      function normalizeName(name) {
        if (typeof name !== "string") {
          name = String(name);
        }
        if (/[^a-z0-9\-#$%&'*+.^_`|~]/i.test(name)) {
          throw new TypeError("Invalid character in header field name");
        }
        return name.toLowerCase();
      }
      function normalizeValue(value) {
        if (typeof value !== "string") {
          value = String(value);
        }
        return value;
      }
      function iteratorFor(items) {
        var iterator = {
          next: function() {
            var value = items.shift();
            return { done: value === void 0, value };
          }
        };
        if (support.iterable) {
          iterator[Symbol.iterator] = function() {
            return iterator;
          };
        }
        return iterator;
      }
      function Headers(headers) {
        this.map = {};
        if (headers instanceof Headers) {
          headers.forEach(function(value, name) {
            this.append(name, value);
          }, this);
        } else if (Array.isArray(headers)) {
          headers.forEach(function(header) {
            this.append(header[0], header[1]);
          }, this);
        } else if (headers) {
          Object.getOwnPropertyNames(headers).forEach(function(name) {
            this.append(name, headers[name]);
          }, this);
        }
      }
      Headers.prototype.append = function(name, value) {
        name = normalizeName(name);
        value = normalizeValue(value);
        var oldValue = this.map[name];
        this.map[name] = oldValue ? oldValue + ", " + value : value;
      };
      Headers.prototype["delete"] = function(name) {
        delete this.map[normalizeName(name)];
      };
      Headers.prototype.get = function(name) {
        name = normalizeName(name);
        return this.has(name) ? this.map[name] : null;
      };
      Headers.prototype.has = function(name) {
        return this.map.hasOwnProperty(normalizeName(name));
      };
      Headers.prototype.set = function(name, value) {
        this.map[normalizeName(name)] = normalizeValue(value);
      };
      Headers.prototype.forEach = function(callback, thisArg) {
        for (var name in this.map) {
          if (this.map.hasOwnProperty(name)) {
            callback.call(thisArg, this.map[name], name, this);
          }
        }
      };
      Headers.prototype.keys = function() {
        var items = [];
        this.forEach(function(value, name) {
          items.push(name);
        });
        return iteratorFor(items);
      };
      Headers.prototype.values = function() {
        var items = [];
        this.forEach(function(value) {
          items.push(value);
        });
        return iteratorFor(items);
      };
      Headers.prototype.entries = function() {
        var items = [];
        this.forEach(function(value, name) {
          items.push([name, value]);
        });
        return iteratorFor(items);
      };
      if (support.iterable) {
        Headers.prototype[Symbol.iterator] = Headers.prototype.entries;
      }
      function consumed(body) {
        if (body.bodyUsed) {
          return Promise.reject(new TypeError("Already read"));
        }
        body.bodyUsed = true;
      }
      function fileReaderReady(reader) {
        return new Promise(function(resolve, reject) {
          reader.onload = function() {
            resolve(reader.result);
          };
          reader.onerror = function() {
            reject(reader.error);
          };
        });
      }
      function readBlobAsArrayBuffer(blob) {
        var reader = new FileReader();
        var promise = fileReaderReady(reader);
        reader.readAsArrayBuffer(blob);
        return promise;
      }
      function readBlobAsText(blob) {
        var reader = new FileReader();
        var promise = fileReaderReady(reader);
        reader.readAsText(blob);
        return promise;
      }
      function readArrayBufferAsText(buf) {
        var view = new Uint8Array(buf);
        var chars = new Array(view.length);
        for (var i = 0; i < view.length; i++) {
          chars[i] = String.fromCharCode(view[i]);
        }
        return chars.join("");
      }
      function bufferClone(buf) {
        if (buf.slice) {
          return buf.slice(0);
        } else {
          var view = new Uint8Array(buf.byteLength);
          view.set(new Uint8Array(buf));
          return view.buffer;
        }
      }
      function Body() {
        this.bodyUsed = false;
        this._initBody = function(body) {
          this._bodyInit = body;
          if (!body) {
            this._bodyText = "";
          } else if (typeof body === "string") {
            this._bodyText = body;
          } else if (support.blob && Blob.prototype.isPrototypeOf(body)) {
            this._bodyBlob = body;
          } else if (support.formData && FormData.prototype.isPrototypeOf(body)) {
            this._bodyFormData = body;
          } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
            this._bodyText = body.toString();
          } else if (support.arrayBuffer && support.blob && isDataView(body)) {
            this._bodyArrayBuffer = bufferClone(body.buffer);
            this._bodyInit = new Blob([this._bodyArrayBuffer]);
          } else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) {
            this._bodyArrayBuffer = bufferClone(body);
          } else {
            this._bodyText = body = Object.prototype.toString.call(body);
          }
          if (!this.headers.get("content-type")) {
            if (typeof body === "string") {
              this.headers.set("content-type", "text/plain;charset=UTF-8");
            } else if (this._bodyBlob && this._bodyBlob.type) {
              this.headers.set("content-type", this._bodyBlob.type);
            } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
              this.headers.set("content-type", "application/x-www-form-urlencoded;charset=UTF-8");
            }
          }
        };
        if (support.blob) {
          this.blob = function() {
            var rejected = consumed(this);
            if (rejected) {
              return rejected;
            }
            if (this._bodyBlob) {
              return Promise.resolve(this._bodyBlob);
            } else if (this._bodyArrayBuffer) {
              return Promise.resolve(new Blob([this._bodyArrayBuffer]));
            } else if (this._bodyFormData) {
              throw new Error("could not read FormData body as blob");
            } else {
              return Promise.resolve(new Blob([this._bodyText]));
            }
          };
          this.arrayBuffer = function() {
            if (this._bodyArrayBuffer) {
              return consumed(this) || Promise.resolve(this._bodyArrayBuffer);
            } else {
              return this.blob().then(readBlobAsArrayBuffer);
            }
          };
        }
        this.text = function() {
          var rejected = consumed(this);
          if (rejected) {
            return rejected;
          }
          if (this._bodyBlob) {
            return readBlobAsText(this._bodyBlob);
          } else if (this._bodyArrayBuffer) {
            return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer));
          } else if (this._bodyFormData) {
            throw new Error("could not read FormData body as text");
          } else {
            return Promise.resolve(this._bodyText);
          }
        };
        if (support.formData) {
          this.formData = function() {
            return this.text().then(decode2);
          };
        }
        this.json = function() {
          return this.text().then(JSON.parse);
        };
        return this;
      }
      var methods = ["DELETE", "GET", "HEAD", "OPTIONS", "POST", "PUT"];
      function normalizeMethod(method) {
        var upcased = method.toUpperCase();
        return methods.indexOf(upcased) > -1 ? upcased : method;
      }
      function Request(input, options) {
        options = options || {};
        var body = options.body;
        if (input instanceof Request) {
          if (input.bodyUsed) {
            throw new TypeError("Already read");
          }
          this.url = input.url;
          this.credentials = input.credentials;
          if (!options.headers) {
            this.headers = new Headers(input.headers);
          }
          this.method = input.method;
          this.mode = input.mode;
          this.signal = input.signal;
          if (!body && input._bodyInit != null) {
            body = input._bodyInit;
            input.bodyUsed = true;
          }
        } else {
          this.url = String(input);
        }
        this.credentials = options.credentials || this.credentials || "same-origin";
        if (options.headers || !this.headers) {
          this.headers = new Headers(options.headers);
        }
        this.method = normalizeMethod(options.method || this.method || "GET");
        this.mode = options.mode || this.mode || null;
        this.signal = options.signal || this.signal;
        this.referrer = null;
        if ((this.method === "GET" || this.method === "HEAD") && body) {
          throw new TypeError("Body not allowed for GET or HEAD requests");
        }
        this._initBody(body);
      }
      Request.prototype.clone = function() {
        return new Request(this, { body: this._bodyInit });
      };
      function decode2(body) {
        var form = new FormData();
        body.trim().split("&").forEach(function(bytes) {
          if (bytes) {
            var split = bytes.split("=");
            var name = split.shift().replace(/\+/g, " ");
            var value = split.join("=").replace(/\+/g, " ");
            form.append(decodeURIComponent(name), decodeURIComponent(value));
          }
        });
        return form;
      }
      function parseHeaders(rawHeaders) {
        var headers = new Headers();
        var preProcessedHeaders = rawHeaders.replace(/\r?\n[\t ]+/g, " ");
        preProcessedHeaders.split(/\r?\n/).forEach(function(line) {
          var parts = line.split(":");
          var key = parts.shift().trim();
          if (key) {
            var value = parts.join(":").trim();
            headers.append(key, value);
          }
        });
        return headers;
      }
      Body.call(Request.prototype);
      function Response(bodyInit, options) {
        if (!options) {
          options = {};
        }
        this.type = "default";
        this.status = options.status === void 0 ? 200 : options.status;
        this.ok = this.status >= 200 && this.status < 300;
        this.statusText = "statusText" in options ? options.statusText : "OK";
        this.headers = new Headers(options.headers);
        this.url = options.url || "";
        this._initBody(bodyInit);
      }
      Body.call(Response.prototype);
      Response.prototype.clone = function() {
        return new Response(this._bodyInit, {
          status: this.status,
          statusText: this.statusText,
          headers: new Headers(this.headers),
          url: this.url
        });
      };
      Response.error = function() {
        var response = new Response(null, { status: 0, statusText: "" });
        response.type = "error";
        return response;
      };
      var redirectStatuses = [301, 302, 303, 307, 308];
      Response.redirect = function(url, status) {
        if (redirectStatuses.indexOf(status) === -1) {
          throw new RangeError("Invalid status code");
        }
        return new Response(null, { status, headers: { location: url } });
      };
      exports2.DOMException = self2.DOMException;
      try {
        new exports2.DOMException();
      } catch (err) {
        exports2.DOMException = function(message, name) {
          this.message = message;
          this.name = name;
          var error = Error(message);
          this.stack = error.stack;
        };
        exports2.DOMException.prototype = Object.create(Error.prototype);
        exports2.DOMException.prototype.constructor = exports2.DOMException;
      }
      function fetch2(input, init) {
        return new Promise(function(resolve, reject) {
          var request = new Request(input, init);
          if (request.signal && request.signal.aborted) {
            return reject(new exports2.DOMException("Aborted", "AbortError"));
          }
          var xhr = new XMLHttpRequest();
          function abortXhr() {
            xhr.abort();
          }
          xhr.onload = function() {
            var options = {
              status: xhr.status,
              statusText: xhr.statusText,
              headers: parseHeaders(xhr.getAllResponseHeaders() || "")
            };
            options.url = "responseURL" in xhr ? xhr.responseURL : options.headers.get("X-Request-URL");
            var body = "response" in xhr ? xhr.response : xhr.responseText;
            resolve(new Response(body, options));
          };
          xhr.onerror = function() {
            reject(new TypeError("Network request failed"));
          };
          xhr.ontimeout = function() {
            reject(new TypeError("Network request failed"));
          };
          xhr.onabort = function() {
            reject(new exports2.DOMException("Aborted", "AbortError"));
          };
          xhr.open(request.method, request.url, true);
          if (request.credentials === "include") {
            xhr.withCredentials = true;
          } else if (request.credentials === "omit") {
            xhr.withCredentials = false;
          }
          if ("responseType" in xhr && support.blob) {
            xhr.responseType = "blob";
          }
          request.headers.forEach(function(value, name) {
            xhr.setRequestHeader(name, value);
          });
          if (request.signal) {
            request.signal.addEventListener("abort", abortXhr);
            xhr.onreadystatechange = function() {
              if (xhr.readyState === 4) {
                request.signal.removeEventListener("abort", abortXhr);
              }
            };
          }
          xhr.send(typeof request._bodyInit === "undefined" ? null : request._bodyInit);
        });
      }
      fetch2.polyfill = true;
      if (!self2.fetch) {
        self2.fetch = fetch2;
        self2.Headers = Headers;
        self2.Request = Request;
        self2.Response = Response;
      }
      exports2.Headers = Headers;
      exports2.Request = Request;
      exports2.Response = Response;
      exports2.fetch = fetch2;
      Object.defineProperty(exports2, "__esModule", { value: true });
      return exports2;
    })({});
  })(__self__);
  __self__.fetch.ponyfill = true;
  delete __self__.fetch.polyfill;
  var ctx = __self__;
  exports = ctx.fetch;
  exports.default = ctx.fetch;
  exports.fetch = ctx.fetch;
  exports.Headers = ctx.Headers;
  exports.Request = ctx.Request;
  exports.Response = ctx.Response;
  module.exports = exports;
})(browserPonyfill, browserPonyfillExports);
const fetch = /* @__PURE__ */ getDefaultExportFromCjs(browserPonyfillExports);
function safeJsonParse(value) {
  if (typeof value !== "string") {
    throw new Error(`Cannot safe json parse value of type ${typeof value}`);
  }
  try {
    return JSON.parse(value);
  } catch (_a) {
    return value;
  }
}
function safeJsonStringify(value) {
  return typeof value === "string" ? value : JSON.stringify(value);
}
const DEFAULT_HTTP_HEADERS = {
  Accept: "application/json",
  "Content-Type": "application/json"
};
const DEFAULT_HTTP_METHOD = "POST";
const DEFAULT_FETCH_OPTS = {
  headers: DEFAULT_HTTP_HEADERS,
  method: DEFAULT_HTTP_METHOD
};
const EVENT_EMITTER_MAX_LISTENERS_DEFAULT = 10;
class HttpConnection {
  constructor(url) {
    this.url = url;
    this.events = new eventsExports.EventEmitter();
    this.isAvailable = false;
    this.registering = false;
    if (!isHttpUrl(url)) {
      throw new Error(`Provided URL is not compatible with HTTP connection: ${url}`);
    }
    this.url = url;
  }
  get connected() {
    return this.isAvailable;
  }
  get connecting() {
    return this.registering;
  }
  on(event, listener) {
    this.events.on(event, listener);
  }
  once(event, listener) {
    this.events.once(event, listener);
  }
  off(event, listener) {
    this.events.off(event, listener);
  }
  removeListener(event, listener) {
    this.events.removeListener(event, listener);
  }
  async open(url = this.url) {
    await this.register(url);
  }
  async close() {
    if (!this.isAvailable) {
      throw new Error("Connection already closed");
    }
    this.onClose();
  }
  async send(payload, context) {
    if (!this.isAvailable) {
      await this.register();
    }
    try {
      const body = safeJsonStringify(payload);
      const res = await fetch(this.url, Object.assign(Object.assign({}, DEFAULT_FETCH_OPTS), { body }));
      const data = await res.json();
      this.onPayload({ data });
    } catch (e) {
      this.onError(payload.id, e);
    }
  }
  async register(url = this.url) {
    if (!isHttpUrl(url)) {
      throw new Error(`Provided URL is not compatible with HTTP connection: ${url}`);
    }
    if (this.registering) {
      const currentMaxListeners = this.events.getMaxListeners();
      if (this.events.listenerCount("register_error") >= currentMaxListeners || this.events.listenerCount("open") >= currentMaxListeners) {
        this.events.setMaxListeners(currentMaxListeners + 1);
      }
      return new Promise((resolve, reject) => {
        this.events.once("register_error", (error) => {
          this.resetMaxListeners();
          reject(error);
        });
        this.events.once("open", () => {
          this.resetMaxListeners();
          if (typeof this.isAvailable === "undefined") {
            return reject(new Error("HTTP connection is missing or invalid"));
          }
          resolve();
        });
      });
    }
    this.url = url;
    this.registering = true;
    try {
      const body = safeJsonStringify({ id: 1, jsonrpc: "2.0", method: "test", params: [] });
      await fetch(url, Object.assign(Object.assign({}, DEFAULT_FETCH_OPTS), { body }));
      this.onOpen();
    } catch (e) {
      const error = this.parseError(e);
      this.events.emit("register_error", error);
      this.onClose();
      throw error;
    }
  }
  onOpen() {
    this.isAvailable = true;
    this.registering = false;
    this.events.emit("open");
  }
  onClose() {
    this.isAvailable = false;
    this.registering = false;
    this.events.emit("close");
  }
  onPayload(e) {
    if (typeof e.data === "undefined")
      return;
    const payload = typeof e.data === "string" ? safeJsonParse(e.data) : e.data;
    this.events.emit("payload", payload);
  }
  onError(id, e) {
    const error = this.parseError(e);
    const message = error.message || error.toString();
    const payload = formatJsonRpcError(id, message);
    this.events.emit("payload", payload);
  }
  parseError(e, url = this.url) {
    return parseConnectionError(e, url, "HTTP");
  }
  resetMaxListeners() {
    if (this.events.getMaxListeners() > EVENT_EMITTER_MAX_LISTENERS_DEFAULT) {
      this.events.setMaxListeners(EVENT_EMITTER_MAX_LISTENERS_DEFAULT);
    }
  }
}
var strictUriEncode = (str) => encodeURIComponent(str).replace(/[!'()*]/g, (x) => `%${x.charCodeAt(0).toString(16).toUpperCase()}`);
var token = "%[a-f0-9]{2}";
var singleMatcher = new RegExp("(" + token + ")|([^%]+?)", "gi");
var multiMatcher = new RegExp("(" + token + ")+", "gi");
function decodeComponents(components, split) {
  try {
    return [decodeURIComponent(components.join(""))];
  } catch (err) {
  }
  if (components.length === 1) {
    return components;
  }
  split = split || 1;
  var left = components.slice(0, split);
  var right = components.slice(split);
  return Array.prototype.concat.call([], decodeComponents(left), decodeComponents(right));
}
function decode(input) {
  try {
    return decodeURIComponent(input);
  } catch (err) {
    var tokens = input.match(singleMatcher) || [];
    for (var i = 1; i < tokens.length; i++) {
      input = decodeComponents(tokens, i).join("");
      tokens = input.match(singleMatcher) || [];
    }
    return input;
  }
}
function customDecodeURIComponent(input) {
  var replaceMap = {
    "%FE%FF": "��",
    "%FF%FE": "��"
  };
  var match = multiMatcher.exec(input);
  while (match) {
    try {
      replaceMap[match[0]] = decodeURIComponent(match[0]);
    } catch (err) {
      var result = decode(match[0]);
      if (result !== match[0]) {
        replaceMap[match[0]] = result;
      }
    }
    match = multiMatcher.exec(input);
  }
  replaceMap["%C2"] = "�";
  var entries = Object.keys(replaceMap);
  for (var i = 0; i < entries.length; i++) {
    var key = entries[i];
    input = input.replace(new RegExp(key, "g"), replaceMap[key]);
  }
  return input;
}
var decodeUriComponent = function(encodedURI) {
  if (typeof encodedURI !== "string") {
    throw new TypeError("Expected `encodedURI` to be of type `string`, got `" + typeof encodedURI + "`");
  }
  try {
    encodedURI = encodedURI.replace(/\+/g, " ");
    return decodeURIComponent(encodedURI);
  } catch (err) {
    return customDecodeURIComponent(encodedURI);
  }
};
var splitOnFirst = (string, separator) => {
  if (!(typeof string === "string" && typeof separator === "string")) {
    throw new TypeError("Expected the arguments to be of type `string`");
  }
  if (separator === "") {
    return [string];
  }
  const separatorIndex = string.indexOf(separator);
  if (separatorIndex === -1) {
    return [string];
  }
  return [
    string.slice(0, separatorIndex),
    string.slice(separatorIndex + separator.length)
  ];
};
export {
  HttpConnection as H,
  IJsonRpcConnection as I,
  JsonRpcProvider as J,
  strictUriEncode as a,
  safeJsonStringify as b,
  cjs as c,
  decodeUriComponent as d,
  isLocalhostUrl as e,
  formatJsonRpcError as f,
  safeJsonParse as g,
  parseConnectionError as h,
  isWsUrl as i,
  isJsonRpcRequest as j,
  formatJsonRpcResult as k,
  isJsonRpcResult as l,
  isJsonRpcError as m,
  isJsonRpcResponse as n,
  formatJsonRpcRequest as o,
  payloadId as p,
  splitOnFirst as s
};