Added concurrent sync, added search page. Other small changes

.gitignore

@@ -1 +1,3 @@
 tmp
+.DS_Store
+.idea

Dockerfile

@@ -3,6 +3,7 @@ FROM golang:1.22.2-alpine as build_go
 COPY go.* /music-server/
 COPY ./cmd/*.go /music-server/cmd/
 COPY ./cmd/swagger /music-server/cmd/swagger
+COPY ./cmd/search /music-server/cmd/search
 COPY ./pkg /music-server/pkg/
 
 #WORKDIR /music-server/

cmd/main.go

@@ -8,10 +8,14 @@ import (
 //go:embed swagger
 var swagger embed.FS
 
+
+//go:embed search
+var search embed.FS
+
 func main() {
 	conf.SetupDb()
 
-	conf.SetupRestServer(swagger)
+	conf.SetupRestServer(swagger, search)
 
 	conf.CloseDb()
 }

cmd/search/index.144x144.png.import

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+uid="uid://b6bierb3v4yoq"
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+metadata={
+"vram_texture": false
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+
+[deps]
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+roughness/mode=0
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+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

cmd/search/index.180x180.png.import

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+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
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cmd/search/index.512x512.png.import

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+roughness/mode=0
+roughness/src_normal=""
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+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

cmd/search/index.apple-touch-icon.png.import

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+uid="uid://d0tny2k1tdlnq"
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+}
+
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+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

cmd/search/index.audio.worklet.js

@@ -0,0 +1,213 @@
+/**************************************************************************/
+/*  audio.worklet.js                                                      */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+class RingBuffer {
+	constructor(p_buffer, p_state, p_threads) {
+		this.buffer = p_buffer;
+		this.avail = p_state;
+		this.threads = p_threads;
+		this.rpos = 0;
+		this.wpos = 0;
+	}
+
+	data_left() {
+		return this.threads ? Atomics.load(this.avail, 0) : this.avail;
+	}
+
+	space_left() {
+		return this.buffer.length - this.data_left();
+	}
+
+	read(output) {
+		const size = this.buffer.length;
+		let from = 0;
+		let to_write = output.length;
+		if (this.rpos + to_write > size) {
+			const high = size - this.rpos;
+			output.set(this.buffer.subarray(this.rpos, size));
+			from = high;
+			to_write -= high;
+			this.rpos = 0;
+		}
+		if (to_write) {
+			output.set(this.buffer.subarray(this.rpos, this.rpos + to_write), from);
+		}
+		this.rpos += to_write;
+		if (this.threads) {
+			Atomics.add(this.avail, 0, -output.length);
+			Atomics.notify(this.avail, 0);
+		} else {
+			this.avail -= output.length;
+		}
+	}
+
+	write(p_buffer) {
+		const to_write = p_buffer.length;
+		const mw = this.buffer.length - this.wpos;
+		if (mw >= to_write) {
+			this.buffer.set(p_buffer, this.wpos);
+			this.wpos += to_write;
+			if (mw === to_write) {
+				this.wpos = 0;
+			}
+		} else {
+			const high = p_buffer.subarray(0, mw);
+			const low = p_buffer.subarray(mw);
+			this.buffer.set(high, this.wpos);
+			this.buffer.set(low);
+			this.wpos = low.length;
+		}
+		if (this.threads) {
+			Atomics.add(this.avail, 0, to_write);
+			Atomics.notify(this.avail, 0);
+		} else {
+			this.avail += to_write;
+		}
+	}
+}
+
+class GodotProcessor extends AudioWorkletProcessor {
+	constructor() {
+		super();
+		this.threads = false;
+		this.running = true;
+		this.lock = null;
+		this.notifier = null;
+		this.output = null;
+		this.output_buffer = new Float32Array();
+		this.input = null;
+		this.input_buffer = new Float32Array();
+		this.port.onmessage = (event) => {
+			const cmd = event.data['cmd'];
+			const data = event.data['data'];
+			this.parse_message(cmd, data);
+		};
+	}
+
+	process_notify() {
+		if (this.notifier) {
+			Atomics.add(this.notifier, 0, 1);
+			Atomics.notify(this.notifier, 0);
+		}
+	}
+
+	parse_message(p_cmd, p_data) {
+		if (p_cmd === 'start' && p_data) {
+			const state = p_data[0];
+			let idx = 0;
+			this.threads = true;
+			this.lock = state.subarray(idx, ++idx);
+			this.notifier = state.subarray(idx, ++idx);
+			const avail_in = state.subarray(idx, ++idx);
+			const avail_out = state.subarray(idx, ++idx);
+			this.input = new RingBuffer(p_data[1], avail_in, true);
+			this.output = new RingBuffer(p_data[2], avail_out, true);
+		} else if (p_cmd === 'stop') {
+			this.running = false;
+			this.output = null;
+			this.input = null;
+			this.lock = null;
+			this.notifier = null;
+		} else if (p_cmd === 'start_nothreads') {
+			this.output = new RingBuffer(p_data[0], p_data[0].length, false);
+		} else if (p_cmd === 'chunk') {
+			this.output.write(p_data);
+		}
+	}
+
+	static array_has_data(arr) {
+		return arr.length && arr[0].length && arr[0][0].length;
+	}
+
+	process(inputs, outputs, parameters) {
+		if (!this.running) {
+			return false; // Stop processing.
+		}
+		if (this.output === null) {
+			return true; // Not ready yet, keep processing.
+		}
+		const process_input = GodotProcessor.array_has_data(inputs);
+		if (process_input) {
+			const input = inputs[0];
+			const chunk = input[0].length * input.length;
+			if (this.input_buffer.length !== chunk) {
+				this.input_buffer = new Float32Array(chunk);
+			}
+			if (!this.threads) {
+				GodotProcessor.write_input(this.input_buffer, input);
+				this.port.postMessage({ 'cmd': 'input', 'data': this.input_buffer });
+			} else if (this.input.space_left() >= chunk) {
+				GodotProcessor.write_input(this.input_buffer, input);
+				this.input.write(this.input_buffer);
+			} else {
+				// this.port.postMessage('Input buffer is full! Skipping input frame.'); // Uncomment this line to debug input buffer.
+			}
+		}
+		const process_output = GodotProcessor.array_has_data(outputs);
+		if (process_output) {
+			const output = outputs[0];
+			const chunk = output[0].length * output.length;
+			if (this.output_buffer.length !== chunk) {
+				this.output_buffer = new Float32Array(chunk);
+			}
+			if (this.output.data_left() >= chunk) {
+				this.output.read(this.output_buffer);
+				GodotProcessor.write_output(output, this.output_buffer);
+				if (!this.threads) {
+					this.port.postMessage({ 'cmd': 'read', 'data': chunk });
+				}
+			} else {
+				// this.port.postMessage('Output buffer has not enough frames! Skipping output frame.'); // Uncomment this line to debug output buffer.
+			}
+		}
+		this.process_notify();
+		return true;
+	}
+
+	static write_output(dest, source) {
+		const channels = dest.length;
+		for (let ch = 0; ch < channels; ch++) {
+			for (let sample = 0; sample < dest[ch].length; sample++) {
+				dest[ch][sample] = source[sample * channels + ch];
+			}
+		}
+	}
+
+	static write_input(dest, source) {
+		const channels = source.length;
+		for (let ch = 0; ch < channels; ch++) {
+			for (let sample = 0; sample < source[ch].length; sample++) {
+				dest[sample * channels + ch] = source[ch][sample];
+			}
+		}
+	}
+}
+
+registerProcessor('godot-processor', GodotProcessor);

cmd/search/index.html

@@ -0,0 +1,200 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+		<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0">
+		<title>MusicSearch</title>
+		<style>
+html, body, #canvas {
+	margin: 0;
+	padding: 0;
+	border: 0;
+}
+
+body {
+	color: white;
+	background-color: black;
+	overflow: hidden;
+	touch-action: none;
+}
+
+#canvas {
+	display: block;
+}
+
+#canvas:focus {
+	outline: none;
+}
+
+#status, #status-splash, #status-progress {
+	position: absolute;
+	left: 0;
+	right: 0;
+}
+
+#status, #status-splash {
+	top: 0;
+	bottom: 0;
+}
+
+#status {
+	background-color: #242424;
+	display: flex;
+	flex-direction: column;
+	justify-content: center;
+	align-items: center;
+	visibility: hidden;
+}
+
+#status-splash {
+	max-height: 100%;
+	max-width: 100%;
+	margin: auto;
+}
+
+#status-progress, #status-notice {
+	display: none;
+}
+
+#status-progress {
+	bottom: 10%;
+	width: 50%;
+	margin: 0 auto;
+}
+
+#status-notice {
+	background-color: #5b3943;
+	border-radius: 0.5rem;
+	border: 1px solid #9b3943;
+	color: #e0e0e0;
+	font-family: 'Noto Sans', 'Droid Sans', Arial, sans-serif;
+	line-height: 1.3;
+	margin: 0 2rem;
+	overflow: hidden;
+	padding: 1rem;
+	text-align: center;
+	z-index: 1;
+}
+		</style>
+		<link id="-gd-engine-icon" rel="icon" type="image/png" href="index.icon.png" />
+<link rel="apple-touch-icon" href="index.apple-touch-icon.png"/>
+<link rel="manifest" href="index.manifest.json">
+
+	</head>
+	<body>
+		<canvas id="canvas">
+			Your browser does not support the canvas tag.
+		</canvas>
+
+		<noscript>
+			Your browser does not support JavaScript.
+		</noscript>
+
+		<div id="status">
+			<img id="status-splash" src="index.png" alt="">
+			<progress id="status-progress"></progress>
+			<div id="status-notice"></div>
+		</div>
+
+		<script src="index.js"></script>
+		<script>
+const GODOT_CONFIG = {"args":[],"canvasResizePolicy":2,"ensureCrossOriginIsolationHeaders":false,"executable":"index","experimentalVK":false,"fileSizes":{"index.pck":86816,"index.wasm":35376909},"focusCanvas":true,"gdextensionLibs":[],"serviceWorker":"index.service.worker.js"};
+const GODOT_THREADS_ENABLED = false;
+const engine = new Engine(GODOT_CONFIG);
+
+(function () {
+	const statusOverlay = document.getElementById('status');
+	const statusProgress = document.getElementById('status-progress');
+	const statusNotice = document.getElementById('status-notice');
+
+	let initializing = true;
+	let statusMode = '';
+
+	function setStatusMode(mode) {
+		if (statusMode === mode || !initializing) {
+			return;
+		}
+		if (mode === 'hidden') {
+			statusOverlay.remove();
+			initializing = false;
+			return;
+		}
+		statusOverlay.style.visibility = 'visible';
+		statusProgress.style.display = mode === 'progress' ? 'block' : 'none';
+		statusNotice.style.display = mode === 'notice' ? 'block' : 'none';
+		statusMode = mode;
+	}
+
+	function setStatusNotice(text) {
+		while (statusNotice.lastChild) {
+			statusNotice.removeChild(statusNotice.lastChild);
+		}
+		const lines = text.split('\n');
+		lines.forEach((line) => {
+			statusNotice.appendChild(document.createTextNode(line));
+			statusNotice.appendChild(document.createElement('br'));
+		});
+	}
+
+	function displayFailureNotice(err) {
+		console.error(err);
+		if (err instanceof Error) {
+			setStatusNotice(err.message);
+		} else if (typeof err === 'string') {
+			setStatusNotice(err);
+		} else {
+			setStatusNotice('An unknown error occured');
+		}
+		setStatusMode('notice');
+		initializing = false;
+	}
+
+	const missing = Engine.getMissingFeatures({
+		threads: GODOT_THREADS_ENABLED,
+	});
+
+	if (missing.length !== 0) {
+		if (GODOT_CONFIG['serviceWorker'] && GODOT_CONFIG['ensureCrossOriginIsolationHeaders'] && 'serviceWorker' in navigator) {
+			// There's a chance that installing the service worker would fix the issue
+			Promise.race([
+				navigator.serviceWorker.getRegistration().then((registration) => {
+					if (registration != null) {
+						return Promise.reject(new Error('Service worker already exists.'));
+					}
+					return registration;
+				}).then(() => engine.installServiceWorker()),
+				// For some reason, `getRegistration()` can stall
+				new Promise((resolve) => {
+					setTimeout(() => resolve(), 2000);
+				}),
+			]).catch((err) => {
+				console.error('Error while registering service worker:', err);
+			}).then(() => {
+				window.location.reload();
+			});
+		} else {
+			// Display the message as usual
+			const missingMsg = 'Error\nThe following features required to run Godot projects on the Web are missing:\n';
+			displayFailureNotice(missingMsg + missing.join('\n'));
+		}
+	} else {
+		setStatusMode('progress');
+		engine.startGame({
+			'onProgress': function (current, total) {
+				if (current > 0 && total > 0) {
+					statusProgress.value = current;
+					statusProgress.max = total;
+				} else {
+					statusProgress.removeAttribute('value');
+					statusProgress.removeAttribute('max');
+				}
+			},
+		}).then(() => {
+			setStatusMode('hidden');
+		}, displayFailureNotice);
+	}
+}());
+		</script>
+	</body>
+</html>
+

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+
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+
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+dest_files=["res://.godot/imported/index.icon.png-c615af856eabc03ca93d51f6a8f07b60.ctex"]
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+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

cmd/search/index.js

@@ -0,0 +1,908 @@
+
+var Godot = (() => {
+  var _scriptName = typeof document != 'undefined' ? document.currentScript?.src : undefined;
+  
+  return (
+function(moduleArg = {}) {
+  var moduleRtn;
+
+var Module=moduleArg;var readyPromiseResolve,readyPromiseReject;var readyPromise=new Promise((resolve,reject)=>{readyPromiseResolve=resolve;readyPromiseReject=reject});["_memory","__Z14godot_web_mainiPPc","__emwebxr_on_input_event","__emwebxr_on_simple_event","___indirect_function_table","_main","onRuntimeInitialized"].forEach(prop=>{if(!Object.getOwnPropertyDescriptor(readyPromise,prop)){Object.defineProperty(readyPromise,prop,{get:()=>abort("You are getting "+prop+" on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js"),set:()=>abort("You are setting "+prop+" on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js")})}});var ENVIRONMENT_IS_WEB=typeof window=="object";var ENVIRONMENT_IS_WORKER=typeof importScripts=="function";var ENVIRONMENT_IS_NODE=typeof process=="object"&&typeof process.versions=="object"&&typeof process.versions.node=="string";var ENVIRONMENT_IS_SHELL=!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_NODE&&!ENVIRONMENT_IS_WORKER;if(Module["ENVIRONMENT"]){throw new Error("Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)")}var moduleOverrides=Object.assign({},Module);var arguments_=[];var thisProgram="./this.program";var quit_=(status,toThrow)=>{throw toThrow};var scriptDirectory="";function locateFile(path){if(Module["locateFile"]){return Module["locateFile"](path,scriptDirectory)}return scriptDirectory+path}var readAsync,readBinary;if(ENVIRONMENT_IS_SHELL){if(typeof process=="object"&&typeof require==="function"||typeof window=="object"||typeof importScripts=="function")throw new Error("not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)")}else if(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER){if(ENVIRONMENT_IS_WORKER){scriptDirectory=self.location.href}else if(typeof document!="undefined"&&document.currentScript){scriptDirectory=document.currentScript.src}if(_scriptName){scriptDirectory=_scriptName}if(scriptDirectory.startsWith("blob:")){scriptDirectory=""}else{scriptDirectory=scriptDirectory.substr(0,scriptDirectory.replace(/[?#].*/,"").lastIndexOf("/")+1)}if(!(typeof window=="object"||typeof importScripts=="function"))throw new Error("not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)");{if(ENVIRONMENT_IS_WORKER){readBinary=url=>{var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.responseType="arraybuffer";xhr.send(null);return new Uint8Array(xhr.response)}}readAsync=url=>{assert(!isFileURI(url),"readAsync does not work with file:// URLs");return fetch(url,{credentials:"same-origin"}).then(response=>{if(response.ok){return response.arrayBuffer()}return Promise.reject(new Error(response.status+" : "+response.url))})}}}else{throw new Error("environment detection error")}var out=Module["print"]||console.log.bind(console);var err=Module["printErr"]||console.error.bind(console);Object.assign(Module,moduleOverrides);moduleOverrides=null;checkIncomingModuleAPI();if(Module["arguments"])arguments_=Module["arguments"];legacyModuleProp("arguments","arguments_");if(Module["thisProgram"])thisProgram=Module["thisProgram"];legacyModuleProp("thisProgram","thisProgram");if(Module["quit"])quit_=Module["quit"];legacyModuleProp("quit","quit_");assert(typeof Module["memoryInitializerPrefixURL"]=="undefined","Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead");assert(typeof Module["pthreadMainPrefixURL"]=="undefined","Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead");assert(typeof Module["cdInitializerPrefixURL"]=="undefined","Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead");assert(typeof Module["filePackagePrefixURL"]=="undefined","Module.filePackagePrefixURL option was removed, use Module.locateFile instead");assert(typeof Module["read"]=="undefined","Module.read option was removed");assert(typeof Module["readAsync"]=="undefined","Module.readAsync option was removed (modify readAsync in JS)");assert(typeof Module["readBinary"]=="undefined","Module.readBinary option was removed (modify readBinary in JS)");assert(typeof Module["setWindowTitle"]=="undefined","Module.setWindowTitle option was removed (modify emscripten_set_window_title in JS)");assert(typeof Module["TOTAL_MEMORY"]=="undefined","Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY");legacyModuleProp("asm","wasmExports");legacyModuleProp("readAsync","readAsync");legacyModuleProp("readBinary","readBinary");legacyModuleProp("setWindowTitle","setWindowTitle");assert(!ENVIRONMENT_IS_NODE,"node environment detected buLine truncated
+
+
+  return moduleRtn;
+}
+);
+})();
+if (typeof exports === 'object' && typeof module === 'object')
+  module.exports = Godot;
+else if (typeof define === 'function' && define['amd'])
+  define([], () => Godot);
+
+const Features = {
+	/**
+	 * Check whether WebGL is available. Optionally, specify a particular version of WebGL to check for.
+	 *
+	 * @param {number=} [majorVersion=1] The major WebGL version to check for.
+	 * @returns {boolean} If the given major version of WebGL is available.
+	 * @function Engine.isWebGLAvailable
+	 */
+	isWebGLAvailable: function (majorVersion = 1) {
+		try {
+			return !!document.createElement('canvas').getContext(['webgl', 'webgl2'][majorVersion - 1]);
+		} catch (e) { /* Not available */ }
+		return false;
+	},
+
+	/**
+	 * Check whether the Fetch API available and supports streaming responses.
+	 *
+	 * @returns {boolean} If the Fetch API is available and supports streaming responses.
+	 * @function Engine.isFetchAvailable
+	 */
+	isFetchAvailable: function () {
+		return 'fetch' in window && 'Response' in window && 'body' in window.Response.prototype;
+	},
+
+	/**
+	 * Check whether the engine is running in a Secure Context.
+	 *
+	 * @returns {boolean} If the engine is running in a Secure Context.
+	 * @function Engine.isSecureContext
+	 */
+	isSecureContext: function () {
+		return window['isSecureContext'] === true;
+	},
+
+	/**
+	 * Check whether the engine is cross origin isolated.
+	 * This value is dependent on Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy headers sent by the server.
+	 *
+	 * @returns {boolean} If the engine is running in a Secure Context.
+	 * @function Engine.isSecureContext
+	 */
+	isCrossOriginIsolated: function () {
+		return window['crossOriginIsolated'] === true;
+	},
+
+	/**
+	 * Check whether SharedBufferArray is available.
+	 *
+	 * Most browsers require the page to be running in a secure context, and the
+	 * the server to provide specific CORS headers for SharedArrayBuffer to be available.
+	 *
+	 * @returns {boolean} If SharedArrayBuffer is available.
+	 * @function Engine.isSharedArrayBufferAvailable
+	 */
+	isSharedArrayBufferAvailable: function () {
+		return 'SharedArrayBuffer' in window;
+	},
+
+	/**
+	 * Check whether the AudioContext supports AudioWorkletNodes.
+	 *
+	 * @returns {boolean} If AudioWorkletNode is available.
+	 * @function Engine.isAudioWorkletAvailable
+	 */
+	isAudioWorkletAvailable: function () {
+		return 'AudioContext' in window && 'audioWorklet' in AudioContext.prototype;
+	},
+
+	/**
+	 * Return an array of missing required features (as string).
+	 *
+	 * @returns {Array<string>} A list of human-readable missing features.
+	 * @function Engine.getMissingFeatures
+	 * @param {{threads: (boolean|undefined)}} supportedFeatures
+	 */
+	getMissingFeatures: function (supportedFeatures = {}) {
+		const {
+			// Quotes are needed for the Closure compiler.
+			'threads': supportsThreads = true,
+		} = supportedFeatures;
+
+		const missing = [];
+		if (!Features.isWebGLAvailable(2)) {
+			missing.push('WebGL2 - Check web browser configuration and hardware support');
+		}
+		if (!Features.isFetchAvailable()) {
+			missing.push('Fetch - Check web browser version');
+		}
+		if (!Features.isSecureContext()) {
+			missing.push('Secure Context - Check web server configuration (use HTTPS)');
+		}
+
+		if (supportsThreads) {
+			if (!Features.isCrossOriginIsolated()) {
+				missing.push('Cross-Origin Isolation - Check that the web server configuration sends the correct headers.');
+			}
+			if (!Features.isSharedArrayBufferAvailable()) {
+				missing.push('SharedArrayBuffer - Check that the web server configuration sends the correct headers.');
+			}
+		}
+
+		// Audio is normally optional since we have a dummy fallback.
+		return missing;
+	},
+};
+
+const Preloader = /** @constructor */ function () { // eslint-disable-line no-unused-vars
+	function getTrackedResponse(response, load_status) {
+		function onloadprogress(reader, controller) {
+			return reader.read().then(function (result) {
+				if (load_status.done) {
+					return Promise.resolve();
+				}
+				if (result.value) {
+					controller.enqueue(result.value);
+					load_status.loaded += result.value.length;
+				}
+				if (!result.done) {
+					return onloadprogress(reader, controller);
+				}
+				load_status.done = true;
+				return Promise.resolve();
+			});
+		}
+		const reader = response.body.getReader();
+		return new Response(new ReadableStream({
+			start: function (controller) {
+				onloadprogress(reader, controller).then(function () {
+					controller.close();
+				});
+			},
+		}), { headers: response.headers });
+	}
+
+	function loadFetch(file, tracker, fileSize, raw) {
+		tracker[file] = {
+			total: fileSize || 0,
+			loaded: 0,
+			done: false,
+		};
+		return fetch(file).then(function (response) {
+			if (!response.ok) {
+				return Promise.reject(new Error(`Failed loading file '${file}'`));
+			}
+			const tr = getTrackedResponse(response, tracker[file]);
+			if (raw) {
+				return Promise.resolve(tr);
+			}
+			return tr.arrayBuffer();
+		});
+	}
+
+	function retry(func, attempts = 1) {
+		function onerror(err) {
+			if (attempts <= 1) {
+				return Promise.reject(err);
+			}
+			return new Promise(function (resolve, reject) {
+				setTimeout(function () {
+					retry(func, attempts - 1).then(resolve).catch(reject);
+				}, 1000);
+			});
+		}
+		return func().catch(onerror);
+	}
+
+	const DOWNLOAD_ATTEMPTS_MAX = 4;
+	const loadingFiles = {};
+	const lastProgress = { loaded: 0, total: 0 };
+	let progressFunc = null;
+
+	const animateProgress = function () {
+		let loaded = 0;
+		let total = 0;
+		let totalIsValid = true;
+		let progressIsFinal = true;
+
+		Object.keys(loadingFiles).forEach(function (file) {
+			const stat = loadingFiles[file];
+			if (!stat.done) {
+				progressIsFinal = false;
+			}
+			if (!totalIsValid || stat.total === 0) {
+				totalIsValid = false;
+				total = 0;
+			} else {
+				total += stat.total;
+			}
+			loaded += stat.loaded;
+		});
+		if (loaded !== lastProgress.loaded || total !== lastProgress.total) {
+			lastProgress.loaded = loaded;
+			lastProgress.total = total;
+			if (typeof progressFunc === 'function') {
+				progressFunc(loaded, total);
+			}
+		}
+		if (!progressIsFinal) {
+			requestAnimationFrame(animateProgress);
+		}
+	};
+
+	this.animateProgress = animateProgress;
+
+	this.setProgressFunc = function (callback) {
+		progressFunc = callback;
+	};
+
+	this.loadPromise = function (file, fileSize, raw = false) {
+		return retry(loadFetch.bind(null, file, loadingFiles, fileSize, raw), DOWNLOAD_ATTEMPTS_MAX);
+	};
+
+	this.preloadedFiles = [];
+	this.preload = function (pathOrBuffer, destPath, fileSize) {
+		let buffer = null;
+		if (typeof pathOrBuffer === 'string') {
+			const me = this;
+			return this.loadPromise(pathOrBuffer, fileSize).then(function (buf) {
+				me.preloadedFiles.push({
+					path: destPath || pathOrBuffer,
+					buffer: buf,
+				});
+				return Promise.resolve();
+			});
+		} else if (pathOrBuffer instanceof ArrayBuffer) {
+			buffer = new Uint8Array(pathOrBuffer);
+		} else if (ArrayBuffer.isView(pathOrBuffer)) {
+			buffer = new Uint8Array(pathOrBuffer.buffer);
+		}
+		if (buffer) {
+			this.preloadedFiles.push({
+				path: destPath,
+				buffer: pathOrBuffer,
+			});
+			return Promise.resolve();
+		}
+		return Promise.reject(new Error('Invalid object for preloading'));
+	};
+};
+
+/**
+ * An object used to configure the Engine instance based on godot export options, and to override those in custom HTML
+ * templates if needed.
+ *
+ * @header Engine configuration
+ * @summary The Engine configuration object. This is just a typedef, create it like a regular object, e.g.:
+ *
+ * ``const MyConfig = { executable: 'godot', unloadAfterInit: false }``
+ *
+ * @typedef {Object} EngineConfig
+ */
+const EngineConfig = {}; // eslint-disable-line no-unused-vars
+
+/**
+ * @struct
+ * @constructor
+ * @ignore
+ */
+const InternalConfig = function (initConfig) { // eslint-disable-line no-unused-vars
+	const cfg = /** @lends {InternalConfig.prototype} */ {
+		/**
+		 * Whether to unload the engine automatically after the instance is initialized.
+		 *
+		 * @memberof EngineConfig
+		 * @default
+		 * @type {boolean}
+		 */
+		unloadAfterInit: true,
+		/**
+		 * The HTML DOM Canvas object to use.
+		 *
+		 * By default, the first canvas element in the document will be used is none is specified.
+		 *
+		 * @memberof EngineConfig
+		 * @default
+		 * @type {?HTMLCanvasElement}
+		 */
+		canvas: null,
+		/**
+		 * The name of the WASM file without the extension. (Set by Godot Editor export process).
+		 *
+		 * @memberof EngineConfig
+		 * @default
+		 * @type {string}
+		 */
+		executable: '',
+		/**
+		 * An alternative name for the game pck to load. The executable name is used otherwise.
+		 *
+		 * @memberof EngineConfig
+		 * @default
+		 * @type {?string}
+		 */
+		mainPack: null,
+		/**
+		 * Specify a language code to select the proper localization for the game.
+		 *
+		 * The browser locale will be used if none is specified. See complete list of
+		 * :ref:`supported locales <doc_locales>`.
+		 *
+		 * @memberof EngineConfig
+		 * @type {?string}
+		 * @default
+		 */
+		locale: null,
+		/**
+		 * The canvas resize policy determines how the canvas should be resized by Godot.
+		 *
+		 * ``0`` means Godot won't do any resizing. This is useful if you want to control the canvas size from
+		 * javascript code in your template.
+		 *
+		 * ``1`` means Godot will resize the canvas on start, and when changing window size via engine functions.
+		 *
+		 * ``2`` means Godot will adapt the canvas size to match the whole browser window.
+		 *
+		 * @memberof EngineConfig
+		 * @type {number}
+		 * @default
+		 */
+		canvasResizePolicy: 2,
+		/**
+		 * The arguments to be passed as command line arguments on startup.
+		 *
+		 * See :ref:`command line tutorial <doc_command_line_tutorial>`.
+		 *
+		 * **Note**: :js:meth:`startGame <Engine.prototype.startGame>` will always add the ``--main-pack`` argument.
+		 *
+		 * @memberof EngineConfig
+		 * @type {Array<string>}
+		 * @default
+		 */
+		args: [],
+		/**
+		 * When enabled, the game canvas will automatically grab the focus when the engine starts.
+		 *
+		 * @memberof EngineConfig
+		 * @type {boolean}
+		 * @default
+		 */
+		focusCanvas: true,
+		/**
+		 * When enabled, this will turn on experimental virtual keyboard support on mobile.
+		 *
+		 * @memberof EngineConfig
+		 * @type {boolean}
+		 * @default
+		 */
+		experimentalVK: false,
+		/**
+		 * The progressive web app service worker to install.
+		 * @memberof EngineConfig
+		 * @default
+		 * @type {string}
+		 */
+		serviceWorker: '',
+		/**
+		 * @ignore
+		 * @type {Array.<string>}
+		 */
+		persistentPaths: ['/userfs'],
+		/**
+		 * @ignore
+		 * @type {boolean}
+		 */
+		persistentDrops: false,
+		/**
+		 * @ignore
+		 * @type {Array.<string>}
+		 */
+		gdextensionLibs: [],
+		/**
+		 * @ignore
+		 * @type {Array.<string>}
+		 */
+		fileSizes: [],
+		/**
+		 * A callback function for handling Godot's ``OS.execute`` calls.
+		 *
+		 * This is for example used in the Web Editor template to switch between project manager and editor, and for running the game.
+		 *
+		 * @callback EngineConfig.onExecute
+		 * @param {string} path The path that Godot's wants executed.
+		 * @param {Array.<string>} args The arguments of the "command" to execute.
+		 */
+		/**
+		 * @ignore
+		 * @type {?function(string, Array.<string>)}
+		 */
+		onExecute: null,
+		/**
+		 * A callback function for being notified when the Godot instance quits.
+		 *
+		 * **Note**: This function will not be called if the engine crashes or become unresponsive.
+		 *
+		 * @callback EngineConfig.onExit
+		 * @param {number} status_code The status code returned by Godot on exit.
+		 */
+		/**
+		 * @ignore
+		 * @type {?function(number)}
+		 */
+		onExit: null,
+		/**
+		 * A callback function for displaying download progress.
+		 *
+		 * The function is called once per frame while downloading files, so the usage of ``requestAnimationFrame()``
+		 * is not necessary.
+		 *
+		 * If the callback function receives a total amount of bytes as 0, this means that it is impossible to calculate.
+		 * Possible reasons include:
+		 *
+		 * -  Files are delivered with server-side chunked compression
+		 * -  Files are delivered with server-side compression on Chromium
+		 * -  Not all file downloads have started yet (usually on servers without multi-threading)
+		 *
+		 * @callback EngineConfig.onProgress
+		 * @param {number} current The current amount of downloaded bytes so far.
+		 * @param {number} total The total amount of bytes to be downloaded.
+		 */
+		/**
+		 * @ignore
+		 * @type {?function(number, number)}
+		 */
+		onProgress: null,
+		/**
+		 * A callback function for handling the standard output stream. This method should usually only be used in debug pages.
+		 *
+		 * By default, ``console.log()`` is used.
+		 *
+		 * @callback EngineConfig.onPrint
+		 * @param {...*} [var_args] A variadic number of arguments to be printed.
+		 */
+		/**
+		 * @ignore
+		 * @type {?function(...*)}
+		 */
+		onPrint: function () {
+			console.log.apply(console, Array.from(arguments)); // eslint-disable-line no-console
+		},
+		/**
+		 * A callback function for handling the standard error stream. This method should usually only be used in debug pages.
+		 *
+		 * By default, ``console.error()`` is used.
+		 *
+		 * @callback EngineConfig.onPrintError
+		 * @param {...*} [var_args] A variadic number of arguments to be printed as errors.
+		*/
+		/**
+		 * @ignore
+		 * @type {?function(...*)}
+		 */
+		onPrintError: function (var_args) {
+			console.error.apply(console, Array.from(arguments)); // eslint-disable-line no-console
+		},
+	};
+
+	/**
+	 * @ignore
+	 * @struct
+	 * @constructor
+	 * @param {EngineConfig} opts
+	 */
+	function Config(opts) {
+		this.update(opts);
+	}
+
+	Config.prototype = cfg;
+
+	/**
+	 * @ignore
+	 * @param {EngineConfig} opts
+	 */
+	Config.prototype.update = function (opts) {
+		const config = opts || {};
+		// NOTE: We must explicitly pass the default, accessing it via
+		// the key will fail due to closure compiler renames.
+		function parse(key, def) {
+			if (typeof (config[key]) === 'undefined') {
+				return def;
+			}
+			return config[key];
+		}
+		// Module config
+		this.unloadAfterInit = parse('unloadAfterInit', this.unloadAfterInit);
+		this.onPrintError = parse('onPrintError', this.onPrintError);
+		this.onPrint = parse('onPrint', this.onPrint);
+		this.onProgress = parse('onProgress', this.onProgress);
+
+		// Godot config
+		this.canvas = parse('canvas', this.canvas);
+		this.executable = parse('executable', this.executable);
+		this.mainPack = parse('mainPack', this.mainPack);
+		this.locale = parse('locale', this.locale);
+		this.canvasResizePolicy = parse('canvasResizePolicy', this.canvasResizePolicy);
+		this.persistentPaths = parse('persistentPaths', this.persistentPaths);
+		this.persistentDrops = parse('persistentDrops', this.persistentDrops);
+		this.experimentalVK = parse('experimentalVK', this.experimentalVK);
+		this.focusCanvas = parse('focusCanvas', this.focusCanvas);
+		this.serviceWorker = parse('serviceWorker', this.serviceWorker);
+		this.gdextensionLibs = parse('gdextensionLibs', this.gdextensionLibs);
+		this.fileSizes = parse('fileSizes', this.fileSizes);
+		this.args = parse('args', this.args);
+		this.onExecute = parse('onExecute', this.onExecute);
+		this.onExit = parse('onExit', this.onExit);
+	};
+
+	/**
+	 * @ignore
+	 * @param {string} loadPath
+	 * @param {Response} response
+	 */
+	Config.prototype.getModuleConfig = function (loadPath, response) {
+		let r = response;
+		const gdext = this.gdextensionLibs;
+		return {
+			'print': this.onPrint,
+			'printErr': this.onPrintError,
+			'thisProgram': this.executable,
+			'noExitRuntime': false,
+			'dynamicLibraries': [`${loadPath}.side.wasm`].concat(this.gdextensionLibs),
+			'instantiateWasm': function (imports, onSuccess) {
+				function done(result) {
+					onSuccess(result['instance'], result['module']);
+				}
+				if (typeof (WebAssembly.instantiateStreaming) !== 'undefined') {
+					WebAssembly.instantiateStreaming(Promise.resolve(r), imports).then(done);
+				} else {
+					r.arrayBuffer().then(function (buffer) {
+						WebAssembly.instantiate(buffer, imports).then(done);
+					});
+				}
+				r = null;
+				return {};
+			},
+			'locateFile': function (path) {
+				if (!path.startsWith('godot.')) {
+					return path;
+				} else if (path.endsWith('.worker.js')) {
+					return `${loadPath}.worker.js`;
+				} else if (path.endsWith('.audio.worklet.js')) {
+					return `${loadPath}.audio.worklet.js`;
+				} else if (path.endsWith('.js')) {
+					return `${loadPath}.js`;
+				} else if (path in gdext) {
+					return path;
+				} else if (path.endsWith('.side.wasm')) {
+					return `${loadPath}.side.wasm`;
+				} else if (path.endsWith('.wasm')) {
+					return `${loadPath}.wasm`;
+				}
+				return path;
+			},
+		};
+	};
+
+	/**
+	 * @ignore
+	 * @param {function()} cleanup
+	 */
+	Config.prototype.getGodotConfig = function (cleanup) {
+		// Try to find a canvas
+		if (!(this.canvas instanceof HTMLCanvasElement)) {
+			const nodes = document.getElementsByTagName('canvas');
+			if (nodes.length && nodes[0] instanceof HTMLCanvasElement) {
+				const first = nodes[0];
+				this.canvas = /** @type {!HTMLCanvasElement} */ (first);
+			}
+			if (!this.canvas) {
+				throw new Error('No canvas found in page');
+			}
+		}
+		// Canvas can grab focus on click, or key events won't work.
+		if (this.canvas.tabIndex < 0) {
+			this.canvas.tabIndex = 0;
+		}
+
+		// Browser locale, or custom one if defined.
+		let locale = this.locale;
+		if (!locale) {
+			locale = navigator.languages ? navigator.languages[0] : navigator.language;
+			locale = locale.split('.')[0];
+		}
+		locale = locale.replace('-', '_');
+		const onExit = this.onExit;
+
+		// Godot configuration.
+		return {
+			'canvas': this.canvas,
+			'canvasResizePolicy': this.canvasResizePolicy,
+			'locale': locale,
+			'persistentDrops': this.persistentDrops,
+			'virtualKeyboard': this.experimentalVK,
+			'focusCanvas': this.focusCanvas,
+			'onExecute': this.onExecute,
+			'onExit': function (p_code) {
+				cleanup(); // We always need to call the cleanup callback to free memory.
+				if (typeof (onExit) === 'function') {
+					onExit(p_code);
+				}
+			},
+		};
+	};
+	return new Config(initConfig);
+};
+
+/**
+ * Projects exported for the Web expose the :js:class:`Engine` class to the JavaScript environment, that allows
+ * fine control over the engine's start-up process.
+ *
+ * This API is built in an asynchronous manner and requires basic understanding
+ * of `Promises <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises>`__.
+ *
+ * @module Engine
+ * @header Web export JavaScript reference
+ */
+const Engine = (function () {
+	const preloader = new Preloader();
+
+	let loadPromise = null;
+	let loadPath = '';
+	let initPromise = null;
+
+	/**
+	 * @classdesc The ``Engine`` class provides methods for loading and starting exported projects on the Web. For default export
+	 * settings, this is already part of the exported HTML page. To understand practical use of the ``Engine`` class,
+	 * see :ref:`Custom HTML page for Web export <doc_customizing_html5_shell>`.
+	 *
+	 * @description Create a new Engine instance with the given configuration.
+	 *
+	 * @global
+	 * @constructor
+	 * @param {EngineConfig} initConfig The initial config for this instance.
+	 */
+	function Engine(initConfig) { // eslint-disable-line no-shadow
+		this.config = new InternalConfig(initConfig);
+		this.rtenv = null;
+	}
+
+	/**
+	 * Load the engine from the specified base path.
+	 *
+	 * @param {string} basePath Base path of the engine to load.
+	 * @param {number=} [size=0] The file size if known.
+	 * @returns {Promise} A Promise that resolves once the engine is loaded.
+	 *
+	 * @function Engine.load
+	 */
+	Engine.load = function (basePath, size) {
+		if (loadPromise == null) {
+			loadPath = basePath;
+			loadPromise = preloader.loadPromise(`${loadPath}.wasm`, size, true);
+			requestAnimationFrame(preloader.animateProgress);
+		}
+		return loadPromise;
+	};
+
+	/**
+	 * Unload the engine to free memory.
+	 *
+	 * This method will be called automatically depending on the configuration. See :js:attr:`unloadAfterInit`.
+	 *
+	 * @function Engine.unload
+	 */
+	Engine.unload = function () {
+		loadPromise = null;
+	};
+
+	/**
+	 * Safe Engine constructor, creates a new prototype for every new instance to avoid prototype pollution.
+	 * @ignore
+	 * @constructor
+	 */
+	function SafeEngine(initConfig) {
+		const proto = /** @lends Engine.prototype */ {
+			/**
+			 * Initialize the engine instance. Optionally, pass the base path to the engine to load it,
+			 * if it hasn't been loaded yet. See :js:meth:`Engine.load`.
+			 *
+			 * @param {string=} basePath Base path of the engine to load.
+			 * @return {Promise} A ``Promise`` that resolves once the engine is loaded and initialized.
+			 */
+			init: function (basePath) {
+				if (initPromise) {
+					return initPromise;
+				}
+				if (loadPromise == null) {
+					if (!basePath) {
+						initPromise = Promise.reject(new Error('A base path must be provided when calling `init` and the engine is not loaded.'));
+						return initPromise;
+					}
+					Engine.load(basePath, this.config.fileSizes[`${basePath}.wasm`]);
+				}
+				const me = this;
+				function doInit(promise) {
+					// Care! Promise chaining is bogus with old emscripten versions.
+					// This caused a regression with the Mono build (which uses an older emscripten version).
+					// Make sure to test that when refactoring.
+					return new Promise(function (resolve, reject) {
+						promise.then(function (response) {
+							const cloned = new Response(response.clone().body, { 'headers': [['content-type', 'application/wasm']] });
+							Godot(me.config.getModuleConfig(loadPath, cloned)).then(function (module) {
+								const paths = me.config.persistentPaths;
+								module['initFS'](paths).then(function (err) {
+									me.rtenv = module;
+									if (me.config.unloadAfterInit) {
+										Engine.unload();
+									}
+									resolve();
+								});
+							});
+						});
+					});
+				}
+				preloader.setProgressFunc(this.config.onProgress);
+				initPromise = doInit(loadPromise);
+				return initPromise;
+			},
+
+			/**
+			 * Load a file so it is available in the instance's file system once it runs. Must be called **before** starting the
+			 * instance.
+			 *
+			 * If not provided, the ``path`` is derived from the URL of the loaded file.
+			 *
+			 * @param {string|ArrayBuffer} file The file to preload.
+			 *
+			 * If a ``string`` the file will be loaded from that path.
+			 *
+			 * If an ``ArrayBuffer`` or a view on one, the buffer will used as the content of the file.
+			 *
+			 * @param {string=} path Path by which the file will be accessible. Required, if ``file`` is not a string.
+			 *
+			 * @returns {Promise} A Promise that resolves once the file is loaded.
+			 */
+			preloadFile: function (file, path) {
+				return preloader.preload(file, path, this.config.fileSizes[file]);
+			},
+
+			/**
+			 * Start the engine instance using the given override configuration (if any).
+			 * :js:meth:`startGame <Engine.prototype.startGame>` can be used in typical cases instead.
+			 *
+			 * This will initialize the instance if it is not initialized. For manual initialization, see :js:meth:`init <Engine.prototype.init>`.
+			 * The engine must be loaded beforehand.
+			 *
+			 * Fails if a canvas cannot be found on the page, or not specified in the configuration.
+			 *
+			 * @param {EngineConfig} override An optional configuration override.
+			 * @return {Promise} Promise that resolves once the engine started.
+			 */
+			start: function (override) {
+				this.config.update(override);
+				const me = this;
+				return me.init().then(function () {
+					if (!me.rtenv) {
+						return Promise.reject(new Error('The engine must be initialized before it can be started'));
+					}
+
+					let config = {};
+					try {
+						config = me.config.getGodotConfig(function () {
+							me.rtenv = null;
+						});
+					} catch (e) {
+						return Promise.reject(e);
+					}
+					// Godot configuration.
+					me.rtenv['initConfig'](config);
+
+					// Preload GDExtension libraries.
+					if (me.config.gdextensionLibs.length > 0 && !me.rtenv['loadDynamicLibrary']) {
+						return Promise.reject(new Error('GDExtension libraries are not supported by this engine version. '
+							+ 'Enable "Extensions Support" for your export preset and/or build your custom template with "dlink_enabled=yes".'));
+					}
+					return new Promise(function (resolve, reject) {
+						for (const file of preloader.preloadedFiles) {
+							me.rtenv['copyToFS'](file.path, file.buffer);
+						}
+						preloader.preloadedFiles.length = 0; // Clear memory
+						me.rtenv['callMain'](me.config.args);
+						initPromise = null;
+						me.installServiceWorker();
+						resolve();
+					});
+				});
+			},
+
+			/**
+			 * Start the game instance using the given configuration override (if any).
+			 *
+			 * This will initialize the instance if it is not initialized. For manual initialization, see :js:meth:`init <Engine.prototype.init>`.
+			 *
+			 * This will load the engine if it is not loaded, and preload the main pck.
+			 *
+			 * This method expects the initial config (or the override) to have both the :js:attr:`executable` and :js:attr:`mainPack`
+			 * properties set (normally done by the editor during export).
+			 *
+			 * @param {EngineConfig} override An optional configuration override.
+			 * @return {Promise} Promise that resolves once the game started.
+			 */
+			startGame: function (override) {
+				this.config.update(override);
+				// Add main-pack argument.
+				const exe = this.config.executable;
+				const pack = this.config.mainPack || `${exe}.pck`;
+				this.config.args = ['--main-pack', pack].concat(this.config.args);
+				// Start and init with execName as loadPath if not inited.
+				const me = this;
+				return Promise.all([
+					this.init(exe),
+					this.preloadFile(pack, pack),
+				]).then(function () {
+					return me.start.apply(me);
+				});
+			},
+
+			/**
+			 * Create a file at the specified ``path`` with the passed as ``buffer`` in the instance's file system.
+			 *
+			 * @param {string} path The location where the file will be created.
+			 * @param {ArrayBuffer} buffer The content of the file.
+			 */
+			copyToFS: function (path, buffer) {
+				if (this.rtenv == null) {
+					throw new Error('Engine must be inited before copying files');
+				}
+				this.rtenv['copyToFS'](path, buffer);
+			},
+
+			/**
+			 * Request that the current instance quit.
+			 *
+			 * This is akin the user pressing the close button in the window manager, and will
+			 * have no effect if the engine has crashed, or is stuck in a loop.
+			 *
+			 */
+			requestQuit: function () {
+				if (this.rtenv) {
+					this.rtenv['request_quit']();
+				}
+			},
+
+			/**
+			 * Install the progressive-web app service worker.
+			 * @returns {Promise} The service worker registration promise.
+			 */
+			installServiceWorker: function () {
+				if (this.config.serviceWorker && 'serviceWorker' in navigator) {
+					return navigator.serviceWorker.register(this.config.serviceWorker);
+				}
+				return Promise.resolve();
+			},
+		};
+
+		Engine.prototype = proto;
+		// Closure compiler exported instance methods.
+		Engine.prototype['init'] = Engine.prototype.init;
+		Engine.prototype['preloadFile'] = Engine.prototype.preloadFile;
+		Engine.prototype['start'] = Engine.prototype.start;
+		Engine.prototype['startGame'] = Engine.prototype.startGame;
+		Engine.prototype['copyToFS'] = Engine.prototype.copyToFS;
+		Engine.prototype['requestQuit'] = Engine.prototype.requestQuit;
+		Engine.prototype['installServiceWorker'] = Engine.prototype.installServiceWorker;
+		// Also expose static methods as instance methods
+		Engine.prototype['load'] = Engine.load;
+		Engine.prototype['unload'] = Engine.unload;
+		return new Engine(initConfig);
+	}
+
+	// Closure compiler exported static methods.
+	SafeEngine['load'] = Engine.load;
+	SafeEngine['unload'] = Engine.unload;
+
+	// Feature-detection utilities.
+	SafeEngine['isWebGLAvailable'] = Features.isWebGLAvailable;
+	SafeEngine['isFetchAvailable'] = Features.isFetchAvailable;
+	SafeEngine['isSecureContext'] = Features.isSecureContext;
+	SafeEngine['isCrossOriginIsolated'] = Features.isCrossOriginIsolated;
+	SafeEngine['isSharedArrayBufferAvailable'] = Features.isSharedArrayBufferAvailable;
+	SafeEngine['isAudioWorkletAvailable'] = Features.isAudioWorkletAvailable;
+	SafeEngine['getMissingFeatures'] = Features.getMissingFeatures;
+
+	return SafeEngine;
+}());
+if (typeof window !== 'undefined') {
+	window['Engine'] = Engine;
+}

cmd/search/index.manifest.json

@@ -0,0 +1 @@
+{"background_color":"#000000","display":"standalone","icons":[{"sizes":"144x144","src":"index.144x144.png","type":"image/png"},{"sizes":"180x180","src":"index.180x180.png","type":"image/png"},{"sizes":"512x512","src":"index.512x512.png","type":"image/png"}],"name":"MusicSearch","orientation":"any","start_url":"./index.html"}

cmd/search/index.offline.html

@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8">
+		<meta http-equiv="X-UA-Compatible" content="IE=edge">
+		<meta name="viewport" content="width=device-width, initial-scale=1">
+		<title>You are offline</title>
+		<style>
+html {
+	background-color: #000000;
+	color: #ffffff;
+}
+
+body {
+	font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+	margin: 2rem;
+}
+
+p {
+	margin-block: 1rem;
+}
+
+button {
+	display: block;
+	padding: 1rem 2rem;
+	margin: 3rem auto 0;
+}
+		</style>
+	</head>
+	<body>
+		<h1>You are offline</h1>
+		<p>This application requires an Internet connection to run for the first time.</p>
+		<p>Press the button below to try reloading:</p>
+		<button type="button">Reload</button>
+		<script>
+document.querySelector('button').addEventListener('click', () => {
+	window.location.reload();
+});
+		</script>
+	</body>
+</html>

cmd/search/index.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bxh15ilo8hoq"
+path="res://.godot/imported/index.png-80964ad67552d78b1e33f58ad16188ff.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://web/index.png"
+dest_files=["res://.godot/imported/index.png-80964ad67552d78b1e33f58ad16188ff.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

cmd/search/index.service.worker.js

@@ -0,0 +1,166 @@
+// This service worker is required to expose an exported Godot project as a
+// Progressive Web App. It provides an offline fallback page telling the user
+// that they need an Internet connection to run the project if desired.
+// Incrementing CACHE_VERSION will kick off the install event and force
+// previously cached resources to be updated from the network.
+/** @type {string} */
+const CACHE_VERSION = '1726998131|1051448710';
+/** @type {string} */
+const CACHE_PREFIX = 'MusicSearch-sw-cache-';
+const CACHE_NAME = CACHE_PREFIX + CACHE_VERSION;
+/** @type {string} */
+const OFFLINE_URL = 'index.offline.html';
+/** @type {boolean} */
+const ENSURE_CROSSORIGIN_ISOLATION_HEADERS = false;
+// Files that will be cached on load.
+/** @type {string[]} */
+const CACHED_FILES = ["index.html","index.js","index.offline.html","index.icon.png","index.apple-touch-icon.png","index.worker.js","index.audio.worklet.js"];
+// Files that we might not want the user to preload, and will only be cached on first load.
+/** @type {string[]} */
+const CACHABLE_FILES = ["index.wasm","index.pck"];
+const FULL_CACHE = CACHED_FILES.concat(CACHABLE_FILES);
+
+self.addEventListener('install', (event) => {
+	event.waitUntil(caches.open(CACHE_NAME).then((cache) => cache.addAll(CACHED_FILES)));
+});
+
+self.addEventListener('activate', (event) => {
+	event.waitUntil(caches.keys().then(
+		function (keys) {
+			// Remove old caches.
+			return Promise.all(keys.filter((key) => key.startsWith(CACHE_PREFIX) && key !== CACHE_NAME).map((key) => caches.delete(key)));
+		}
+	).then(function () {
+		// Enable navigation preload if available.
+		return ('navigationPreload' in self.registration) ? self.registration.navigationPreload.enable() : Promise.resolve();
+	}));
+});
+
+/**
+ * Ensures that the response has the correct COEP/COOP headers
+ * @param {Response} response
+ * @returns {Response}
+ */
+function ensureCrossOriginIsolationHeaders(response) {
+	if (response.headers.get('Cross-Origin-Embedder-Policy') === 'require-corp'
+		&& response.headers.get('Cross-Origin-Opener-Policy') === 'same-origin') {
+		return response;
+	}
+
+	const crossOriginIsolatedHeaders = new Headers(response.headers);
+	crossOriginIsolatedHeaders.set('Cross-Origin-Embedder-Policy', 'require-corp');
+	crossOriginIsolatedHeaders.set('Cross-Origin-Opener-Policy', 'same-origin');
+	const newResponse = new Response(response.body, {
+		status: response.status,
+		statusText: response.statusText,
+		headers: crossOriginIsolatedHeaders,
+	});
+
+	return newResponse;
+}
+
+/**
+ * Calls fetch and cache the result if it is cacheable
+ * @param {FetchEvent} event
+ * @param {Cache} cache
+ * @param {boolean} isCacheable
+ * @returns {Response}
+ */
+async function fetchAndCache(event, cache, isCacheable) {
+	// Use the preloaded response, if it's there
+	/** @type { Response } */
+	let response = await event.preloadResponse;
+	if (response == null) {
+		// Or, go over network.
+		response = await self.fetch(event.request);
+	}
+
+	if (ENSURE_CROSSORIGIN_ISOLATION_HEADERS) {
+		response = ensureCrossOriginIsolationHeaders(response);
+	}
+
+	if (isCacheable) {
+		// And update the cache
+		cache.put(event.request, response.clone());
+	}
+
+	return response;
+}
+
+self.addEventListener(
+	'fetch',
+	/**
+	 * Triggered on fetch
+	 * @param {FetchEvent} event
+	 */
+	(event) => {
+		const isNavigate = event.request.mode === 'navigate';
+		const url = event.request.url || '';
+		const referrer = event.request.referrer || '';
+		const base = referrer.slice(0, referrer.lastIndexOf('/') + 1);
+		const local = url.startsWith(base) ? url.replace(base, '') : '';
+		const isCachable = FULL_CACHE.some((v) => v === local) || (base === referrer && base.endsWith(CACHED_FILES[0]));
+		if (isNavigate || isCachable) {
+			event.respondWith((async () => {
+				// Try to use cache first
+				const cache = await caches.open(CACHE_NAME);
+				if (isNavigate) {
+					// Check if we have full cache during HTML page request.
+					/** @type {Response[]} */
+					const fullCache = await Promise.all(FULL_CACHE.map((name) => cache.match(name)));
+					const missing = fullCache.some((v) => v === undefined);
+					if (missing) {
+						try {
+							// Try network if some cached file is missing (so we can display offline page in case).
+							const response = await fetchAndCache(event, cache, isCachable);
+							return response;
+						} catch (e) {
+							// And return the hopefully always cached offline page in case of network failure.
+							console.error('Network error: ', e); // eslint-disable-line no-console
+							return caches.match(OFFLINE_URL);
+						}
+					}
+				}
+				let cached = await cache.match(event.request);
+				if (cached != null) {
+					if (ENSURE_CROSSORIGIN_ISOLATION_HEADERS) {
+						cached = ensureCrossOriginIsolationHeaders(cached);
+					}
+					return cached;
+				}
+				// Try network if don't have it in cache.
+				const response = await fetchAndCache(event, cache, isCachable);
+				return response;
+			})());
+		} else if (ENSURE_CROSSORIGIN_ISOLATION_HEADERS) {
+			event.respondWith((async () => {
+				let response = await fetch(event.request);
+				response = ensureCrossOriginIsolationHeaders(response);
+				return response;
+			})());
+		}
+	}
+);
+
+self.addEventListener('message', (event) => {
+	// No cross origin
+	if (event.origin !== self.origin) {
+		return;
+	}
+	const id = event.source.id || '';
+	const msg = event.data || '';
+	// Ensure it's one of our clients.
+	self.clients.get(id).then(function (client) {
+		if (!client) {
+			return; // Not a valid client.
+		}
+		if (msg === 'claim') {
+			self.skipWaiting().then(() => self.clients.claim());
+		} else if (msg === 'clear') {
+			caches.delete(CACHE_NAME);
+		} else if (msg === 'update') {
+			self.skipWaiting().then(() => self.clients.claim()).then(() => self.clients.matchAll()).then((all) => all.forEach((c) => c.navigate(c.url)));
+		}
+	});
+});
+

go.mod

@@ -23,6 +23,7 @@ require (
 	github.com/jackc/pgio v1.0.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20231201235250-de7065d80cb9 // indirect
+	github.com/jackc/puddle/v2 v2.2.1 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
@@ -35,6 +36,7 @@ require (
 	golang.org/x/arch v0.8.0 // indirect
 	golang.org/x/crypto v0.23.0 // indirect
 	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sync v0.1.0 // indirect
 	golang.org/x/sys v0.20.0 // indirect
 	golang.org/x/text v0.15.0 // indirect
 	google.golang.org/protobuf v1.34.1 // indirect

go.sum

@@ -93,7 +93,6 @@ github.com/jackc/pgx/v5 v5.5.5/go.mod h1:ez9gk+OAat140fv9ErkZDYFWmXLfV+++K0uAOiw
 github.com/jackc/puddle v0.0.0-20190413234325-e4ced69a3a2b/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jackc/puddle v0.0.0-20190608224051-11cab39313c9/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jackc/puddle v1.1.3/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
-github.com/jackc/puddle v1.3.0 h1:eHK/5clGOatcjX3oWGBO/MpxpbHzSwud5EWTSCI+MX0=
 github.com/jackc/puddle v1.3.0/go.mod h1:m4B5Dj62Y0fbyuIc15OsIqK0+JU8nkqQjsgx7dvjSWk=
 github.com/jackc/puddle/v2 v2.2.1 h1:RhxXJtFG022u4ibrCSMSiu5aOq1i77R3OHKNJj77OAk=
 github.com/jackc/puddle/v2 v2.2.1/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=

pkg/api/sync.go

@@ -19,6 +19,12 @@ func (s *Sync) SyncGames(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, "Games are synced")
 }
 
+func (s *Sync) SyncGamesQuick(ctx *gin.Context) {
+	server.SyncGamesQuick()
+	server.Reset()
+	ctx.JSON(http.StatusOK, "Games are synced")
+}
+
 func (s *Sync) ResetGames(ctx *gin.Context) {
 	server.ResetDB()
 	ctx.JSON(http.StatusOK, "Games and songs are deleted from the database")

pkg/conf/conf.go

@@ -3,14 +3,15 @@ package conf
 import (
 	"embed"
 	"fmt"
-	"github.com/gin-contrib/static"
-	"github.com/gin-gonic/gin"
 	"log"
 	"music-server/pkg/api"
 	"music-server/pkg/db"
 	"music-server/pkg/helpers"
 	"os"
 	"strconv"
+
+	"github.com/gin-contrib/static"
+	"github.com/gin-gonic/gin"
 )
 
 func SetupDb() {
@@ -50,7 +51,7 @@ func CloseDb() {
 	defer db.CloseDb()
 }
 
-func SetupRestServer(swagger embed.FS) {
+func SetupRestServer(swagger embed.FS, search embed.FS) {
 
 	router := gin.Default()
 	router.Use(helpers.SetCorsAndNoCacheHeaders())
@@ -59,6 +60,7 @@ func SetupRestServer(swagger embed.FS) {
 	syncGroup := router.Group("/sync")
 	{
 		syncGroup.GET("", sync.SyncGames)
+		syncGroup.GET("/quick", sync.SyncGamesQuick)
 		syncGroup.GET("/reset", sync.ResetGames)
 	}
 
@@ -87,8 +89,10 @@ func SetupRestServer(swagger embed.FS) {
 	router.GET("/version", index.GetVersion)
 	router.GET("/test", index.GetDBTest)
 	router.StaticFS("/swagger", helpers.EmbedFolder(swagger, "swagger", false))
+	router.StaticFS("/search", helpers.EmbedFolder(search, "search", true))
 	router.Use(static.Serve("/", static.LocalFile("/frontend", true)))
 	router.Use(static.Serve("/new", static.LocalFile("/newFrontend", true)))
+	//router.Use(static.Serve("/search", static.LocalFile("/search", true)))
 
 	port := os.Getenv("PORT")
 	if port == "" {

pkg/db/dbHelper.go

@@ -3,11 +3,13 @@ package db
 import (
 	"context"
 	"fmt"
-	"github.com/jackc/pgx/v5"
 	"os"
+
+	"github.com/jackc/pgx/v5/pgxpool"
 )
 
-var pool *pgx.Conn
+var dbpool *pgxpool.Pool
+var ctx = context.Background()
 
 func InitDB(host string, port int, user string, password string, dbname string) {
 
@@ -18,14 +20,14 @@ func InitDB(host string, port int, user string, password string, dbname string)
 	fmt.Println(psqlInfo)
 
 	var err error
-	pool, err = pgx.Connect(context.Background(), psqlInfo)
+	dbpool, err = pgxpool.New(ctx, psqlInfo)
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Unable to connect to database: %v\n", err)
 		os.Exit(1)
 	}
 
 	var success string
-	err = pool.QueryRow(context.Background(), "select 'Successfully connected!'").Scan(&success)
+	err = dbpool.QueryRow(ctx, "select 'Successfully connected!'").Scan(&success)
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
 		os.Exit(1)
@@ -35,14 +37,11 @@ func InitDB(host string, port int, user string, password string, dbname string)
 }
 
 func CloseDb() {
-	err := pool.Close(context.Background())
-	if err != nil {
-		return
-	}
+	dbpool.Close()
 }
 
 func Testf() {
-	rows, dbErr := pool.Query(context.Background(), "select game_name from game")
+	rows, dbErr := dbpool.Query(ctx, "select game_name from game")
 	if dbErr != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", dbErr)
 		os.Exit(1)
@@ -58,7 +57,7 @@ func Testf() {
 }
 
 func resetGameIdSeq() {
-	_, err := pool.Query(context.Background(), "SELECT setval('game_id_seq', (SELECT MAX(id) FROM game)+1);")
+	_, err := dbpool.Query(ctx, "SELECT setval('game_id_seq', (SELECT MAX(id) FROM game)+1);")
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
 	}

pkg/db/game.go

@@ -1,7 +1,6 @@
 package db
 
 import (
-	"context"
 	"errors"
 	"fmt"
 	"music-server/pkg/models"
@@ -13,10 +12,12 @@ import (
 
 func GetGameName(gameId int) string {
 	var gameName = ""
-	err := pool.QueryRow(context.Background(),
+	err := dbpool.QueryRow(ctx,
 		"SELECT game_name FROM game WHERE id = $1", gameId).Scan(&gameName)
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 		return ""
 	}
 	return gameName
@@ -27,11 +28,13 @@ func GetGameById(gameId int) (models.GameData, error) {
 	var numberOfSongs pgtype.Int4
 	var gameName, path string
 	var added, deleted, lastChanged, lastPlayed pgtype.Timestamp
-	err := pool.QueryRow(context.Background(),
+	err := dbpool.QueryRow(ctx,
 		"SELECT id, game_name, added, deleted, last_changed, path, times_played, last_played, number_of_songs "+
 			"FROM game WHERE id = $1 AND deleted IS NULL ", gameId).Scan(&id, &gameName, &added, &deleted, &lastChanged, &path, &timesPlayed, &lastPlayed, &numberOfSongs)
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 		return models.GameData{}, errors.New("Game not found")
 	}
 	return models.GameData{
@@ -48,7 +51,7 @@ func GetGameById(gameId int) (models.GameData, error) {
 }
 
 func SetGameDeletionDate() {
-	_, err := pool.Exec(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		"UPDATE game SET deleted=$1 WHERE deleted IS NULL", time.Now())
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
@@ -56,14 +59,14 @@ func SetGameDeletionDate() {
 }
 
 func ClearGames() {
-	_, err := pool.Exec(context.Background(), "DELETE FROM game")
+	_, err := dbpool.Exec(ctx, "DELETE FROM game")
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
 	}
 }
 
 func UpdateGameName(id int, name string, path string) {
-	_, err := pool.Exec(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		"UPDATE game SET game_name=$1, path=$2, last_changed=$3 WHERE id=$4",
 		name, path, time.Now(), id)
 	if err != nil {
@@ -72,7 +75,7 @@ func UpdateGameName(id int, name string, path string) {
 }
 
 func RemoveDeletionDate(id int) {
-	_, err := pool.Exec(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		"UPDATE game SET deleted=null WHERE id=$1", id)
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
@@ -81,10 +84,12 @@ func RemoveDeletionDate(id int) {
 
 func GetIdByGameName(name string) int {
 	var gameId = -1
-	err := pool.QueryRow(context.Background(),
+	err := dbpool.QueryRow(ctx,
 		"SELECT id FROM game WHERE game_name = $1", name).Scan(&gameId)
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 		return -1
 	}
 	return gameId
@@ -92,17 +97,21 @@ func GetIdByGameName(name string) int {
 
 func InsertGame(name string, path string) int {
 	gameId := -1
-	err := pool.QueryRow(context.Background(),
+	err := dbpool.QueryRow(ctx,
 		"INSERT INTO game(game_name, path, added) VALUES ($1, $2, $3) RETURNING id",
 		name, path, time.Now()).Scan(&gameId)
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 		resetGameIdSeq()
-		err2 := pool.QueryRow(context.Background(),
+		err2 := dbpool.QueryRow(ctx,
 			"INSERT INTO game(game_name, path, added) VALUES ($1, $2, $3) RETURNING id",
 			name, path, time.Now()).Scan(&gameId)
 		if err2 != nil {
-			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+			if compareError.Error() != err2.Error() {
+				_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+			}
 			return -1
 		}
 	}
@@ -110,7 +119,7 @@ func InsertGame(name string, path string) int {
 }
 
 func InsertGameWithExistingId(id int, name string, path string) {
-	_, err := pool.Exec(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		"INSERT INTO game(id, game_name, path, added) VALUES ($1, $2, $3, $4)",
 		id, name, path, time.Now())
 	if err != nil {
@@ -119,12 +128,14 @@ func InsertGameWithExistingId(id int, name string, path string) {
 }
 
 func FindAllGames() []models.GameData {
-	rows, err := pool.Query(context.Background(),
+	rows, err := dbpool.Query(ctx,
 		"SELECT id, game_name, added, deleted, last_changed, path, times_played, last_played, number_of_songs "+
 			"FROM game WHERE deleted IS NULL "+
 			"ORDER BY game_name")
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 	}
 	var gameList []models.GameData
 	for rows.Next() {
@@ -134,7 +145,9 @@ func FindAllGames() []models.GameData {
 		var added, deleted, lastChanged, lastPlayed pgtype.Timestamp
 		err := rows.Scan(&id, &gameName, &added, &deleted, &lastChanged, &path, &timesPlayed, &lastPlayed, &numberOfSongs)
 		if err != nil {
-			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+			if compareError.Error() != err.Error() {
+				_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+			}
 		}
 		gameList = append(gameList, models.GameData{
 			Id:            id,
@@ -152,7 +165,7 @@ func FindAllGames() []models.GameData {
 }
 
 func AddGamePlayed(id int) {
-	_, err := pool.Exec(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		"UPDATE game SET times_played=times_played+1, last_played=now() WHERE id=$1", id)
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)

pkg/db/song.go

@@ -1,21 +1,23 @@
 package db
 
 import (
-	"context"
+	"errors"
 	"fmt"
 	"music-server/pkg/models"
 	"os"
 	"strings"
 )
 
+var compareError = errors.New("no rows in result set")
+
 func ClearSongs(gameId int) {
 	if gameId == -1 {
-		_, err := pool.Exec(context.Background(), "DELETE FROM song")
+		_, err := dbpool.Exec(ctx, "DELETE FROM song")
 		if err != nil {
 			_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
 		}
 	} else {
-		_, err := pool.Exec(context.Background(), "DELETE FROM song where game_id=$1", gameId)
+		_, err := dbpool.Exec(ctx, "DELETE FROM song where game_id=$1", gameId)
 		if err != nil {
 			_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
 		}
@@ -23,7 +25,7 @@ func ClearSongs(gameId int) {
 }
 
 func AddSong(song models.SongData) {
-	_, err := pool.Exec(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		"INSERT INTO song(game_id, song_name, path, file_name) VALUES ($1, $2, $3, $4)",
 		song.GameId, song.SongName, song.Path, song.FileName)
 	if err != nil {
@@ -33,17 +35,18 @@ func AddSong(song models.SongData) {
 
 func CheckSong(songPath string) bool {
 	var path string
-	err := pool.QueryRow(context.Background(),
+	err := dbpool.QueryRow(ctx,
 		"SELECT path FROM song WHERE path = $1", songPath).Scan(&path)
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 	}
-	println("CheckSong path", path)
 	return path != ""
 }
 
 func UpdateSong(songName string, fileName string, path string) {
-	_, err := pool.Exec(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		"UPDATE song SET song_name=$1, file_name=$2 WHERE path = $3",
 		songName, fileName, path)
 	if err != nil {
@@ -52,10 +55,12 @@ func UpdateSong(songName string, fileName string, path string) {
 }
 
 func FindSongsFromGame(id int) []models.SongData {
-	rows, err := pool.Query(context.Background(),
+	rows, err := dbpool.Query(ctx,
 		"SELECT song_name, path, file_name, times_played FROM song WHERE game_id = $1", id)
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 		return nil
 	}
 
@@ -68,7 +73,9 @@ func FindSongsFromGame(id int) []models.SongData {
 
 		err := rows.Scan(&songName, &path, &fileName, &timesPlayed)
 		if err != nil {
-			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+			if compareError.Error() != err.Error() {
+				_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+			}
 		}
 
 		songDataList = append(songDataList, models.SongData{
@@ -83,7 +90,7 @@ func FindSongsFromGame(id int) []models.SongData {
 }
 
 func AddSongPlayed(id int, name string) {
-	_, err := pool.Exec(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		"UPDATE song SET times_played=times_played+1 WHERE game_id=$1 AND song_name=$2", id, name)
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
@@ -91,10 +98,12 @@ func AddSongPlayed(id int, name string) {
 }
 
 func FetchAllSongs() []models.SongData {
-	rows, err := pool.Query(context.Background(),
+	rows, err := dbpool.Query(ctx,
 		"SELECT song_name, path FROM song")
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 		return nil
 	}
 
@@ -105,7 +114,9 @@ func FetchAllSongs() []models.SongData {
 
 		err := rows.Scan(&songName, &path)
 		if err != nil {
-			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+			if compareError.Error() != err.Error() {
+				_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+			}
 		}
 
 		songDataList = append(songDataList, models.SongData{
@@ -117,7 +128,7 @@ func FetchAllSongs() []models.SongData {
 }
 
 func RemoveBrokenSong(song models.SongData) {
-	_, err := pool.Exec(context.Background(), "DELETE FROM song where path=$1", song.Path)
+	_, err := dbpool.Exec(ctx, "DELETE FROM song where path=$1", song.Path)
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
 	}
@@ -130,7 +141,7 @@ func RemoveBrokenSongs(songs []models.SongData) {
 	}
 	joined = strings.TrimSuffix(joined, ",")
 
-	_, err := pool.Exec(context.Background(), "DELETE FROM song where path in ($1)", joined)
+	_, err := dbpool.Exec(ctx, "DELETE FROM song where path in ($1)", joined)
 	if err != nil {
 		_, _ = fmt.Fprintf(os.Stderr, "Exec failed: %v\n", err)
 	}

pkg/db/songList.go

@@ -1,7 +1,6 @@
 package db
 
 import (
-	"context"
 	"fmt"
 	"music-server/pkg/models"
 	"os"
@@ -9,7 +8,7 @@ import (
 )
 
 func InsertSongInList(song models.SongListData) {
-	err := pool.QueryRow(context.Background(),
+	_, err := dbpool.Exec(ctx,
 		`INSERT INTO song_list (match_date, match_id, song_no, game_name, song_name) VALUES ($1, $2, $3, $4, $5)`,
 		song.MatchDate, song.MatchId, song.SongNo, song.GameName, song.SongName)
 	if err != nil {
@@ -18,12 +17,14 @@ func InsertSongInList(song models.SongListData) {
 }
 
 func GetSongList(matchId int) []models.SongListData {
-	rows, err := pool.Query(context.Background(),
+	rows, err := dbpool.Query(ctx,
 		"SELECT match_date, match_id, song_no, game_name, song_name "+
 			"FROM song_list WHERE match_date = $1"+
 			"ORDER BY song_no DESC", matchId)
 	if err != nil {
-		_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		if compareError.Error() != err.Error() {
+			_, _ = fmt.Fprintf(os.Stderr, "QueryRow failed: %v\n", err)
+		}
 	}
 	var songList []models.SongListData
 	for rows.Next() {

pkg/helpers/helpers.go

@@ -3,14 +3,15 @@ package helpers
 import (
 	"embed"
 	"fmt"
-	"github.com/gin-contrib/static"
-	"github.com/gin-gonic/gin"
 	"io"
 	"io/fs"
 	"net/http"
 	"os"
 	"strconv"
 	"time"
+
+	"github.com/gin-contrib/static"
+	"github.com/gin-gonic/gin"
 )
 
 func SetCorsAndNoCacheHeaders() gin.HandlerFunc {

pkg/server/music.go

@@ -7,6 +7,7 @@ import (
 	"music-server/pkg/models"
 	"os"
 	"strconv"
+	"strings"
 )
 
 var currentSong = -1
@@ -232,9 +233,9 @@ func getSongFromList(games []models.GameData) models.SongData {
 	var song models.SongData
 	for !songFound {
 		game := getRandomGame(games)
-		log.Println("game = ", game)
+		//log.Println("game = ", game)
 		songs := db.FindSongsFromGame(game.Id)
-		log.Println("songs = ", songs)
+		//log.Println("songs = ", songs)
 		if len(songs) == 0 {
 			continue
 		}
@@ -243,10 +244,10 @@ func getSongFromList(games []models.GameData) models.SongData {
 
 		//Check if file exists and open
 		openFile, err := os.Open(song.Path)
-		log.Println("game.Path+song.FileName: ", game.Path+song.FileName)
-		log.Println("song.Path: ", song.Path)
-		log.Println("game.Path+song.FileName != song.Path: ", game.Path+song.FileName != song.Path)
-		if err != nil || game.Path+song.FileName != song.Path {
+		//log.Println("game.Path+song.FileName: ", game.Path+song.FileName)
+		//log.Println("song.Path: ", song.Path)
+		//log.Println("game.Path+song.FileName != song.Path: ", game.Path+song.FileName != song.Path)
+		if err != nil || game.Path+song.FileName != song.Path || strings.HasSuffix(song.FileName, ".wav") {
 			//File not found
 			db.RemoveBrokenSong(song)
 			log.Println("Song not found, song '" + song.SongName + "' deleted from game '" + game.GameName + "' FileName: " + song.FileName)

pkg/server/sync.go

@@ -10,9 +10,11 @@ import (
 	"sort"
 	"strconv"
 	"strings"
+	"sync"
 )
 
-// SyncGames TODO: Make sync concurrent
+var wg sync.WaitGroup
+
 func SyncGames() {
 	host := os.Getenv("DB_HOST")
 	var dir string
@@ -33,33 +35,66 @@ func SyncGames() {
 	}
 
 	for _, file := range files {
-		if file.IsDir() && !contains(foldersToSkip, file.Name()) {
-			fmt.Println(file.Name())
-			path := dir + file.Name() + "/"
-			fmt.Println(path)
+		syncGame(file, foldersToSkip, dir)
+	}
+}
 
-			entries, err := os.ReadDir(path)
+func SyncGamesQuick() {
+	host := os.Getenv("DB_HOST")
+	var dir string
+	if host != "" {
+		dir = "/sorted/"
+	} else {
+		dir = "/Users/sebastian/Resilio Sync/Sorterat_test/"
+	}
+	fmt.Printf("dir: %s\n", dir)
+	foldersToSkip := []string{".sync", "dist", "old"}
+	fmt.Println(foldersToSkip)
+	db.SetGameDeletionDate()
+	checkBrokenSongs()
+
+	files, err := os.ReadDir(dir)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, file := range files {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			syncGame(file, foldersToSkip, dir)
+		}()
+	}
+	wg.Wait()
+}
+
+func syncGame(file os.DirEntry, foldersToSkip []string, dir string) {
+	if file.IsDir() && !contains(foldersToSkip, file.Name()) {
+		fmt.Println(file.Name())
+		path := dir + file.Name() + "/"
+		fmt.Println(path)
+
+		entries, err := os.ReadDir(path)
+		if err != nil {
+			log.Println(err)
+		}
+		id := -1
+		for _, entry := range entries {
+			fileInfo, err := entry.Info()
 			if err != nil {
 				log.Println(err)
 			}
-			id := -1
-			for _, entry := range entries {
-				fileInfo, err := entry.Info()
-				if err != nil {
-					log.Println(err)
-				}
-				id = getIdFromFile(fileInfo)
-				if id != -1 {
-					break
-				}
-			}
-			if id == -1 {
-				addNewGame(file.Name(), path)
-			} else {
-				checkIfChanged(id, file.Name(), path)
-				checkSongs(path, id)
+			id = getIdFromFile(fileInfo)
+			if id != -1 {
+				break
 			}
 		}
+		if id == -1 {
+			addNewGame(file.Name(), path)
+		} else {
+			checkIfChanged(id, file.Name(), path)
+			checkSongs(path, id)
+		}
 	}
 }
 
@@ -160,7 +195,7 @@ func checkBrokenSongs() {
 }
 
 func isSong(entry fs.FileInfo) bool {
-	return !entry.IsDir() && strings.HasSuffix(entry.Name(), ".mp3") || strings.HasSuffix(entry.Name(), ".wav")
+	return !entry.IsDir() && strings.HasSuffix(entry.Name(), ".mp3")
 }
 
 func isCoverImage(entry fs.FileInfo) bool {