(function (global, factory) {
	typeof exports === "object" && typeof module !== "undefined"
		? factory(exports)
		: typeof define === "function" && define.amd
			? define(["exports"], factory)
			: ((global =
				typeof globalThis !== "undefined" ? globalThis : global || self),
				factory((global.BareMod = {})));
})(this, function (exports) {
	"use strict";

	// The user likely has overwritten all networking functions after importing bare-client
	// It is our responsibility to make sure components of Bare-Client are using native networking functions
	// These exports are provided to plugins by @rollup/plugin-inject
	const fetch = globalThis.fetch;
	const WebSocket = globalThis.WebSocket;
	const WebSocketFields = {
		prototype: {
			send: WebSocket.prototype.send
		},
		CLOSED: WebSocket.CLOSED,
		CLOSING: WebSocket.CLOSING,
		CONNECTING: WebSocket.CONNECTING,
		OPEN: WebSocket.OPEN
	};

	class BareError extends Error {
		status;
		body;
		constructor(status, body) {
			super(body.message || body.code);
			this.status = status;
			this.body = body;
		}
	}
	class Client {
		base;
		/**
		 *
		 * @param version Version provided by extension
		 * @param server Bare Server URL provided by BareClient
		 */
		constructor(version, server) {
			this.base = new URL(`./v${version}/`, server);
		}
	}

	/*
	 * JavaScript MD5
	 * Adopted from https://github.com/blueimp/JavaScript-MD5
	 *
	 * Copyright 2011, Sebastian Tschan
	 * https://blueimp.net
	 *
	 * Licensed under the MIT license:
	 * https://opensource.org/licenses/MIT
	 *
	 * Based on
	 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
	 * Digest Algorithm, as defined in RFC 1321.
	 * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
	 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
	 * Distributed under the BSD License
	 * See http://pajhome.org.uk/crypt/md5 for more info.
	 */
	/**
	 * Add integers, wrapping at 2^32.
	 * This uses 16-bit operations internally to work around bugs in interpreters.
	 *
	 * @param x First integer
	 * @param y Second integer
	 * @returns Sum
	 */
	function safeAdd(x, y) {
		const lsw = (x & 0xffff) + (y & 0xffff);
		const msw = (x >> 16) + (y >> 16) + (lsw >> 16);
		return (msw << 16) | (lsw & 0xffff);
	}
	/**
	 * Bitwise rotate a 32-bit number to the left.
	 *
	 * @param num 32-bit number
	 * @param cnt Rotation count
	 * @returns  Rotated number
	 */
	function bitRotateLeft(num, cnt) {
		return (num << cnt) | (num >>> (32 - cnt));
	}
	/**
	 * Basic operation the algorithm uses.
	 *
	 * @param q q
	 * @param a a
	 * @param b b
	 * @param x x
	 * @param s s
	 * @param t t
	 * @returns Result
	 */
	function md5cmn(q, a, b, x, s, t) {
		return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);
	}
	/**
	 * Basic operation the algorithm uses.
	 *
	 * @param a a
	 * @param b b
	 * @param c c
	 * @param d d
	 * @param x x
	 * @param s s
	 * @param t t
	 * @returns Result
	 */
	function md5ff(a, b, c, d, x, s, t) {
		return md5cmn((b & c) | (~b & d), a, b, x, s, t);
	}
	/**
	 * Basic operation the algorithm uses.
	 *
	 * @param a a
	 * @param b b
	 * @param c c
	 * @param d d
	 * @param x x
	 * @param s s
	 * @param t t
	 * @returns Result
	 */
	function md5gg(a, b, c, d, x, s, t) {
		return md5cmn((b & d) | (c & ~d), a, b, x, s, t);
	}
	/**
	 * Basic operation the algorithm uses.
	 *
	 * @param a a
	 * @param b b
	 * @param c c
	 * @param d d
	 * @param x x
	 * @param s s
	 * @param t t
	 * @returns Result
	 */
	function md5hh(a, b, c, d, x, s, t) {
		return md5cmn(b ^ c ^ d, a, b, x, s, t);
	}
	/**
	 * Basic operation the algorithm uses.
	 *
	 * @param a a
	 * @param b b
	 * @param c c
	 * @param d d
	 * @param x x
	 * @param s s
	 * @param t t
	 * @returns Result
	 */
	function md5ii(a, b, c, d, x, s, t) {
		return md5cmn(c ^ (b | ~d), a, b, x, s, t);
	}
	/**
	 * Calculate the MD5 of an array of little-endian words, and a bit length.
	 *
	 * @param x Array of little-endian words
	 * @param len Bit length
	 * @returns MD5 Array
	 */
	function binlMD5(x, len) {
		/* append padding */
		x[len >> 5] |= 0x80 << len % 32;
		x[(((len + 64) >>> 9) << 4) + 14] = len;
		let a = 1732584193;
		let b = -271733879;
		let c = -1732584194;
		let d = 271733878;
		for (let i = 0; i < x.length; i += 16) {
			const olda = a;
			const oldb = b;
			const oldc = c;
			const oldd = d;
			a = md5ff(a, b, c, d, x[i], 7, -680876936);
			d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);
			c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);
			b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
			a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);
			d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
			c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
			b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);
			a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
			d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
			c = md5ff(c, d, a, b, x[i + 10], 17, -42063);
			b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
			a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
			d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);
			c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
			b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);
			a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);
			d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
			c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);
			b = md5gg(b, c, d, a, x[i], 20, -373897302);
			a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);
			d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);
			c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);
			b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);
			a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);
			d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
			c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);
			b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
			a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
			d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);
			c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
			b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);
			a = md5hh(a, b, c, d, x[i + 5], 4, -378558);
			d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
			c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
			b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);
			a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
			d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
			c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);
			b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
			a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);
			d = md5hh(d, a, b, c, x[i], 11, -358537222);
			c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);
			b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);
			a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);
			d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);
			c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);
			b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);
			a = md5ii(a, b, c, d, x[i], 6, -198630844);
			d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
			c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
			b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);
			a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
			d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
			c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);
			b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
			a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
			d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);
			c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
			b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
			a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);
			d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
			c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);
			b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);
			a = safeAdd(a, olda);
			b = safeAdd(b, oldb);
			c = safeAdd(c, oldc);
			d = safeAdd(d, oldd);
		}
		return [a, b, c, d];
	}
	/**
	 * Convert an array of little-endian words to a string
	 *
	 * @param input MD5 Array
	 * @returns MD5 string
	 */
	function binl2rstr(input) {
		let output = "";
		const length32 = input.length * 32;
		for (let i = 0; i < length32; i += 8) {
			output += String.fromCharCode((input[i >> 5] >>> i % 32) & 0xff);
		}
		return output;
	}
	/**
	 * Convert a raw string to an array of little-endian words
	 * Characters >255 have their high-byte silently ignored.
	 *
	 * @param input Raw input string
	 * @returns Array of little-endian words
	 */
	function rstr2binl(input) {
		const output = [];
		const outputLen = input.length >> 2;
		for (let i = 0; i < outputLen; i += 1) {
			output[i] = 0;
		}
		const length8 = input.length * 8;
		for (let i = 0; i < length8; i += 8) {
			output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << i % 32;
		}
		return output;
	}
	/**
	 * Calculate the MD5 of a raw string
	 *
	 * @param s Input string
	 * @returns Raw MD5 string
	 */
	function rstrMD5(s) {
		return binl2rstr(binlMD5(rstr2binl(s), s.length * 8));
	}
	/**
	 * Calculates the HMAC-MD5 of a key and some data (raw strings)
	 *
	 * @param key HMAC key
	 * @param data Raw input string
	 * @returns Raw MD5 string
	 */
	function rstrHMACMD5(key, data) {
		let bkey = rstr2binl(key);
		const ipad = [];
		const opad = [];
		if (bkey.length > 16) {
			bkey = binlMD5(bkey, key.length * 8);
		}
		for (let i = 0; i < 16; i += 1) {
			ipad[i] = bkey[i] ^ 0x36363636;
			opad[i] = bkey[i] ^ 0x5c5c5c5c;
		}
		const hash = binlMD5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);
		return binl2rstr(binlMD5(opad.concat(hash), 512 + 128));
	}
	/**
	 * Convert a raw string to a hex string
	 *
	 * @param input Raw input string
	 * @returns Hex encoded string
	 */
	function rstr2hex(input) {
		const hexTab = "0123456789abcdef";
		let output = "";
		for (let i = 0; i < input.length; i += 1) {
			const x = input.charCodeAt(i);
			output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f);
		}
		return output;
	}
	/**
	 * Encode a string as UTF-8
	 *
	 * @param input Input string
	 * @returns UTF8 string
	 */
	function str2rstrUTF8(input) {
		return unescape(encodeURIComponent(input));
	}
	/**
	 * Encodes input string as raw MD5 string
	 *
	 * @param s Input string
	 * @returns Raw MD5 string
	 */
	function rawMD5(s) {
		return rstrMD5(str2rstrUTF8(s));
	}
	/**
	 * Encodes input string as Hex encoded string
	 *
	 * @param s Input string
	 * @returns Hex encoded string
	 */
	function hexMD5(s) {
		return rstr2hex(rawMD5(s));
	}
	/**
	 * Calculates the raw HMAC-MD5 for the given key and data
	 *
	 * @param k HMAC key
	 * @param d Input string
	 * @returns Raw MD5 string
	 */
	function rawHMACMD5(k, d) {
		return rstrHMACMD5(str2rstrUTF8(k), str2rstrUTF8(d));
	}
	/**
	 * Calculates the Hex encoded HMAC-MD5 for the given key and data
	 *
	 * @param k HMAC key
	 * @param d Input string
	 * @returns Raw MD5 string
	 */
	function hexHMACMD5(k, d) {
		return rstr2hex(rawHMACMD5(k, d));
	}
	/**
	 * Calculates MD5 value for a given string.
	 * If a key is provided, calculates the HMAC-MD5 value.
	 * Returns a Hex encoded string unless the raw argument is given.
	 *
	 * @param string Input string
	 * @param key HMAC key
	 * @param raw Raw output switch
	 * @returns MD5 output
	 */
	function md5(string, key, raw) {
		if (!key) {
			if (!raw) {
				return hexMD5(string);
			}
			return rawMD5(string);
		}
		if (!raw) {
			return hexHMACMD5(key, string);
		}
		return rawHMACMD5(key, string);
	}

	const MAX_HEADER_VALUE = 3072;
	/**
	 *
	 * Splits headers according to spec
	 * @param headers
	 * @returns Split headers
	 */
	function splitHeaders(headers) {
		const output = new Headers(headers);
		if (headers.has("x-bare-headers")) {
			const value = headers.get("x-bare-headers");
			if (value.length > MAX_HEADER_VALUE) {
				output.delete("x-bare-headers");
				let split = 0;
				for (let i = 0; i < value.length; i += MAX_HEADER_VALUE) {
					const part = value.slice(i, i + MAX_HEADER_VALUE);
					const id = split++;
					output.set(`x-bare-headers-${id}`, `;${part}`);
				}
			}
		}
		return output;
	}
	/**
	 * Joins headers according to spec
	 * @param headers
	 * @returns Joined headers
	 */
	function joinHeaders(headers) {
		const output = new Headers(headers);
		const prefix = "x-bare-headers";
		if (headers.has(`${prefix}-0`)) {
			const join = [];
			for (const [header, value] of headers) {
				if (!header.startsWith(prefix)) {
					continue;
				}
				if (!value.startsWith(";")) {
					throw new BareError(400, {
						code: "INVALID_BARE_HEADER",
						id: `request.headers.${header}`,
						message: `Value didn't begin with semi-colon.`
					});
				}
				const id = parseInt(header.slice(prefix.length + 1));
				join[id] = value.slice(1);
				output.delete(header);
			}
			output.set(prefix, join.join(""));
		}
		return output;
	}

	class ClientV3 extends Client {
		ws;
		http;
		meta() {
			return {};
		}
		constructor(server) {
			super(3, server);
			this.ws = new URL(this.base);
			this.http = new URL(this.base);
			if (this.ws.protocol === "https:") {
				this.ws.protocol = "wss:";
			} else {
				this.ws.protocol = "ws:";
			}
		}
		ready = true;
		async init() {
			this.ready = true;
		}
		connect(
			url,
			origin,
			protocols,
			requestHeaders,
			onopen,
			onmessage,
			onclose,
			onerror
		) {
			const ws = new WebSocket(this.ws);
			const cleanup = () => {
				ws.removeEventListener("close", closeListener);
				ws.removeEventListener("message", messageListener);
			};
			const closeListener = () => {
				cleanup();
			};
			const messageListener = (event) => {
				cleanup();
				// ws.binaryType is irrelevant when sending text
				if (typeof event.data !== "string")
					throw new TypeError(
						"the first websocket message was not a text frame"
					);
				const message = JSON.parse(event.data);
				// finally
				if (message.type !== "open")
					throw new TypeError("message was not of open type");
				// onMeta({
				// 	protocol: message.protocol,
				// 	setCookies: message.setCookies,
				// });
				onopen(message.protocol);
				// TODO
				ws.addEventListener("message", (ev) => {
					onmessage(ev.data);
				});
			};
			ws.addEventListener("close", closeListener);
			ws.addEventListener("message", messageListener);
			// CONNECTED TO THE BARE SERVER, NOT THE REMOTE
			ws.addEventListener(
				"open",
				(event) => {
					// getRequestHeaders().then((headers:any) =>
					WebSocketFields.prototype.send.call(
						ws,
						JSON.stringify({
							type: "connect",
							remote: url.toString(),
							protocols,
							headers: requestHeaders,
							forwardHeaders: []
						})
					);
					// );
				},
				// only block the open event once
				{ once: true }
			);
			return ws.send.bind(ws);
		}
		async request(remote, method, body, headers, signal) {
			const options = {
				credentials: "omit",
				method: method,
				signal
			};
			if (body !== undefined) {
				options.body = body;
			}
			options.headers = this.createBareHeaders(remote, headers);
			const response = await fetch(
				this.http + "?cache=" + md5(remote.toString()),
				options
			);
			const readResponse = await this.readBareResponse(response);
			// const result: Response & Partial<BareResponse> = new Response(
			// 	statusEmpty.includes(readResponse.status!) ? undefined : response.body,
			// 	{
			// 		status: readResponse.status,
			// 		statusText: readResponse.statusText ?? undefined,
			// 		headers: new Headers(readResponse.headers as HeadersInit),
			// 	}
			// );
			//
			// result.rawHeaders = readResponse.headers;
			// result.rawResponse = response;
			return {
				body: response.body,
				headers: readResponse.headers,
				status: readResponse.status,
				statusText: readResponse.statusText
			};
		}
		async readBareResponse(response) {
			if (!response.ok) {
				throw new BareError(response.status, await response.json());
			}
			const responseHeaders = joinHeaders(response.headers);
			const result = {};
			const xBareStatus = responseHeaders.get("x-bare-status");
			if (xBareStatus !== null) result.status = parseInt(xBareStatus);
			const xBareStatusText = responseHeaders.get("x-bare-status-text");
			if (xBareStatusText !== null) result.statusText = xBareStatusText;
			const xBareHeaders = responseHeaders.get("x-bare-headers");
			if (xBareHeaders !== null) result.headers = JSON.parse(xBareHeaders);
			return result;
		}
		createBareHeaders(
			remote,
			bareHeaders,
			forwardHeaders = [],
			passHeaders = [],
			passStatus = []
		) {
			const headers = new Headers();
			headers.set("x-bare-url", remote.toString());
			headers.set("x-bare-headers", JSON.stringify(bareHeaders));
			for (const header of forwardHeaders) {
				headers.append("x-bare-forward-headers", header);
			}
			for (const header of passHeaders) {
				headers.append("x-bare-pass-headers", header);
			}
			for (const status of passStatus) {
				headers.append("x-bare-pass-status", status.toString());
			}
			splitHeaders(headers);
			return headers;
		}
	}

	exports.BareClient = ClientV3;
});