"use strict";
const assert = require("assert").strict;
const { Controller, WsServer } = require("@clusterio/controller");
const { ControllerConfig } = require("@clusterio/lib");

describe("controller/src/WsServer", function() {
	describe("class WsServer", function() {
		/** @type {WsServer} */
		let wsServer;
		before(function() {
			let config = new ControllerConfig("controller");
			config.set("controller.trusted_proxies", "127.0.0.0/8, ::1");
			let controller = new Controller({}, [], "", config);
			wsServer = controller.wsServer;
		});
		describe(".remoteAddr()", function() {
			it("should resolve X-Forward-For header for trusted proxies", function() {
				const ipv4 = wsServer.remoteAddr({
					socket: {
						remoteAddress: "127.0.0.1",
						remoteFamily: "IPv4",
					},
					headers: { "x-forwarded-for": "1.2.3.4" },
				});
				assert.equal(ipv4, "1.2.3.4");
				const ipv6 = wsServer.remoteAddr({
					socket: {
						remoteAddress: "::1",
						remoteFamily: "IPv6",
					},
					headers: { "x-forwarded-for": "2000::1" },
				});
				assert.equal(ipv6, "2000::1");
			});
			it("should pick the last address in X-Forward-For header for trusted proxies", function() {
				const ipv4 = wsServer.remoteAddr({
					socket: {
						remoteAddress: "127.0.0.1",
						remoteFamily: "IPv4",
					},
					headers: { "x-forwarded-for": "1.0.0.0, 2.0.0.0, 1.2.3.4" },
				});
				assert.equal(ipv4, "1.2.3.4");
				const ipv6 = wsServer.remoteAddr({
					socket: {
						remoteAddress: "::1",
						remoteFamily: "IPv6",
					},
					headers: { "x-forwarded-for": "2001::, 2002::, 2000::1" },
				});
				assert.equal(ipv6, "2000::1");
			});
			it("should not resolve X-Forward-For header for untrusted proxies", function() {
				const ipv4 = wsServer.remoteAddr({
					socket: {
						remoteAddress: "1.2.3.4",
						remoteFamily: "IPv4",
					},
					headers: { "x-forwarded-for": "127.0.0.1" },
				});
				assert.equal(ipv4, "1.2.3.4");
				const ipv6 = wsServer.remoteAddr({
					socket: {
						remoteAddress: "2000::1",
						remoteFamily: "IPv6",
					},
					headers: { "x-forwarded-for": "::1" },
				});
				assert.equal(ipv6, "2000::1");
			});
		});
	});
});