first import

.gitignore

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+node_modules
+
+# Output
+.output
+.vercel
+.netlify
+.wrangler
+/.svelte-kit
+/build
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Env
+.env
+.env.*
+!.env.example
+!.env.test
+
+# Vite
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*

.npmrc

@@ -0,0 +1 @@
+engine-strict=true

.prettierignore

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+# Package Managers
+package-lock.json
+pnpm-lock.yaml
+yarn.lock
+bun.lock
+bun.lockb

.prettierrc

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+{
+	"useTabs": true,
+	"singleQuote": true,
+	"trailingComma": "none",
+	"printWidth": 100,
+	"plugins": ["prettier-plugin-svelte", "prettier-plugin-tailwindcss"],
+	"overrides": [
+		{
+			"files": "*.svelte",
+			"options": {
+				"parser": "svelte"
+			}
+		}
+	]
+}

README.md

@@ -1,39 +1 @@
-# sv
-
-Everything you need to build a Svelte project, powered by [`sv`](https://github.com/sveltejs/cli).
-
-## Creating a project
-
-If you're seeing this, you've probably already done this step. Congrats!
-
-```bash
-# create a new project in the current directory
-npx sv create
-
-# create a new project in my-app
-npx sv create my-app
-```
-
-## Developing
-
-Once you've created a project and installed dependencies with `npm install` (or `pnpm install` or `yarn`), start a development server:
-
-```bash
-npm run dev
-
-# or start the server and open the app in a new browser tab
-npm run dev -- --open
-```
-
-## Building
-
-To create a production version of your app:
-
-```bash
-npm run build
-```
-
-You can preview the production build with `npm run preview`.
-
-> To deploy your app, you may need to install an [adapter](https://svelte.dev/docs/kit/adapters) for your target environment.
 # huggingface-fast

eslint.config.js

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+import prettier from 'eslint-config-prettier';
+import js from '@eslint/js';
+import { includeIgnoreFile } from '@eslint/compat';
+import svelte from 'eslint-plugin-svelte';
+import globals from 'globals';
+import { fileURLToPath } from 'node:url';
+import ts from 'typescript-eslint';
+import svelteConfig from './svelte.config.js';
+
+const gitignorePath = fileURLToPath(new URL('./.gitignore', import.meta.url));
+
+export default ts.config(
+	includeIgnoreFile(gitignorePath),
+	js.configs.recommended,
+	...ts.configs.recommended,
+	...svelte.configs.recommended,
+	prettier,
+	...svelte.configs.prettier,
+	{
+		languageOptions: {
+			globals: { ...globals.browser, ...globals.node }
+		},
+		rules: { 'no-undef': 'off' }
+	},
+	{
+		files: ['**/*.svelte', '**/*.svelte.ts', '**/*.svelte.js'],
+		languageOptions: {
+			parserOptions: {
+				projectService: true,
+				extraFileExtensions: ['.svelte'],
+				parser: ts.parser,
+				svelteConfig
+			}
+		}
+	}
+);

package.json

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+{
+	"name": "huggingface-fast",
+	"private": true,
+	"version": "0.0.1",
+	"type": "module",
+	"scripts": {
+		"dev": "vite dev",
+		"build": "vite build",
+		"preview": "vite preview",
+		"prepare": "svelte-kit sync || echo ''",
+		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
+		"format": "prettier --write .",
+		"lint": "prettier --check . && eslint ."
+	},
+	"devDependencies": {
+		"@eslint/compat": "^1.2.5",
+		"@eslint/js": "^9.18.0",
+		"@sveltejs/adapter-auto": "^6.0.0",
+		"@sveltejs/kit": "^2.16.0",
+		"@sveltejs/vite-plugin-svelte": "^5.0.0",
+		"@tailwindcss/typography": "^0.5.15",
+		"@tailwindcss/vite": "^4.0.0",
+		"eslint": "^9.18.0",
+		"eslint-config-prettier": "^10.0.1",
+		"eslint-plugin-svelte": "^3.0.0",
+		"globals": "^16.0.0",
+		"prettier": "^3.4.2",
+		"prettier-plugin-svelte": "^3.3.3",
+		"prettier-plugin-tailwindcss": "^0.6.11",
+		"svelte": "^5.0.0",
+		"svelte-check": "^4.0.0",
+		"tailwindcss": "^4.0.0",
+		"typescript": "^5.0.0",
+		"typescript-eslint": "^8.20.0",
+		"vite": "^6.2.6"
+	},
+	"dependencies": {
+		"@fortawesome/fontawesome-free": "^6.7.2",
+		"chart.js": "^4.4.9"
+	}
+}

src/app.css

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+@import 'tailwindcss';
+@plugin '@tailwindcss/typography';

src/app.d.ts

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+// See https://svelte.dev/docs/kit/types#app.d.ts
+// for information about these interfaces
+declare global {
+	namespace App {
+		// interface Error {}
+		// interface Locals {}
+		// interface PageData {}
+		// interface PageState {}
+		// interface Platform {}
+	}
+}
+
+export {};

src/app.html

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+<!doctype html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8" />
+		<link rel="icon" href="%sveltekit.assets%/favicon.png" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		%sveltekit.head%
+	</head>
+	<body data-sveltekit-preload-data="hover" class="bg-gray-50 min-h-screen">
+		<div class="container mx-auto px-4 py-8">%sveltekit.body%</div>
+	</body>
+</html>

src/lib/index.ts

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+// place files you want to import through the `$lib` alias in this folder.
+
+interface BandwidthCallback {
+	(
+		elapsedMs: number,
+		loadedBytes: number,
+		totalBytes: number,
+		bytesPerSecond: number,
+		done: boolean
+	): void;
+}
+
+export async function bandwidthTest(
+	onProgress: BandwidthCallback,
+	onLatency: (latency: number) => void
+) {
+	performance.setResourceTimingBufferSize(100);
+	performance.clearResourceTimings();
+	// start timer
+	const startTime = performance.now();
+	// const url = 'https://cdn-test-cloudfront.hf.co/140gb.safetensors';
+	const url = 'https://cdn-test-cloudfront.hf.co/15mb.json';
+	const response = await fetch(url);
+	if (!response.ok) {
+		throw new Error(`Network response was not ok: ${response.status}`);
+	}
+	// setTimeout(() => {
+	// 	const entries = performance.getEntriesByType('resource');
+	// 	const resourceEntry = entries.find((e) => e.name === url);
+	// 	if (!resourceEntry) {
+	// 		return
+	// 	}
+	// 	console.log(resourceEntry);
+	// 	const { requestStart, responseStart } = resourceEntry;
+	// 	const latency = responseStart - requestStart;
+	// 	onLatency(latency);
+	// }, 2000);
+	const latency = performance.now() - startTime;
+	onLatency(latency);
+	const contentLengthHeader = response.headers.get('Content-Length');
+	const totalBytes = contentLengthHeader ? parseInt(contentLengthHeader, 10) : 0;
+	const reader = response.body.getReader();
+	let loadedBytes = 0;
+	let lastTimestamp = performance.now();
+	let lastLoaded = 0;
+	const REPORT_INTERVAL_MS = 500;
+	onProgress(latency, loadedBytes, totalBytes, 0, false);
+	let bytesPerSecond= 0;
+	while (true) {
+		const { done, value } = await reader.read();
+		if (done) {
+			// stream is finished
+			const elapsedMs = performance.now() - startTime;
+			onProgress(elapsedMs, loadedBytes, totalBytes, bytesPerSecond, true);
+			break;
+		}
+
+		// `value` is a Uint8Array for this chunk
+		loadedBytes += value.byteLength;
+
+		// Current time
+		const now = performance.now();
+		const deltaMs = now - lastTimestamp;
+
+		if (deltaMs >= REPORT_INTERVAL_MS) {
+			// compute bytes downloaded since last report
+			const deltaBytes = loadedBytes - lastLoaded;
+			// convert ms to seconds
+			const deltaSeconds = deltaMs / 1000;
+			bytesPerSecond = deltaBytes / deltaSeconds;
+
+			// Invoke callback
+			const elapsedMs = performance.now() - startTime;
+			onProgress(elapsedMs, loadedBytes, totalBytes, bytesPerSecond, false);
+
+			// Reset our “last” markers
+			lastLoaded = loadedBytes;
+			lastTimestamp = now;
+		}
+	}
+}
+
+export async function counter(callback: BandwidthCallback) {
+	// start timer
+	const startTime = performance.now();
+	let counter = 0;
+	// set a random value between 50 and 150
+	const interval = setInterval(() => {
+		counter = Math.floor(Math.random() * 100) + 50;
+		// Calculate elapsed time in milliseconds
+		const elapsedMs = performance.now() - startTime;
+		callback(elapsedMs, 100, 100, counter, false);
+	}, 1000);
+	// Stop the counter after 3600 seconds
+	setTimeout(() => {
+		clearInterval(interval);
+		const elapsedMs = performance.now() - startTime;
+		callback(elapsedMs, 100, 100, counter, true);
+	}, 3600 * 1000);
+}

src/routes/+layout.svelte

@@ -0,0 +1,19 @@
+<script lang="ts">
+	import '../app.css';
+	import '@fortawesome/fontawesome-free/css/all.min.css'
+
+	let { children } = $props();
+</script>
+
+<div class="max-w-4xl mx-auto">
+	<header class="text-center mb-10">
+		<div class="flex justify-center items-center mb-4">
+			<img src="https://huggingface.co/front/assets/huggingface_logo-noborder.svg" alt="Hugging Face Logo" class="h-12 mr-3">
+			<h1 class="text-3xl md:text-4xl font-bold text-gray-800">Bandwidth Monitor</h1>
+		</div>
+		<p class="text-gray-600 max-w-2xl mx-auto">
+			Measure your connection speed to Hugging Face's servers in real-time
+		</p>
+	</header>
+	{@render children()}
+</div>

src/routes/+page.svelte

@@ -0,0 +1,186 @@
+<script lang="ts">
+	import { bandwidthTest, counter } from '$lib';
+	import { Chart, registerables } from 'chart.js';
+	import type { Action } from 'svelte/action';
+
+	Chart.register(...registerables);
+
+	let currentBandwidth = $state("0");
+	let currentLatency = $state(0);
+	let bandwidthMeasurements: number[] = $state([]);
+	let timeMeasurements: string[] = $state([]);
+	let bandwidthCallback = (elapsedMs: number, totalBytes: number, loadedBytes: number, bw: number) => {
+		let mbps = (bw / 1000000 * 8); // convert Bps to Mbps
+		// update the bandwidth state
+		currentBandwidth = mbps.toFixed(2);
+		// update the bandwidth measurements array
+		bandwidthMeasurements.push(mbps); // convert Bps to Mbps
+		timeMeasurements.push((elapsedMs / 1000).toFixed(1)); // convert ms to seconds
+		// only keep the last 20 measurements
+		if (bandwidthMeasurements.length > 20) {
+			bandwidthMeasurements.shift();
+			timeMeasurements.shift();
+		}
+	};
+	let latencyCallback = (latency: number) => {
+		// update the latency state
+		currentLatency = latency;
+		console.log('Latency:', latency);
+	};
+	//counter(callback);
+	bandwidthTest(bandwidthCallback, latencyCallback);
+
+	let canvas: HTMLCanvasElement;
+
+	const chart: Action<
+		HTMLCanvasElement
+	> = (node) => {
+		let speedChart: Chart;
+
+		function dispatch<T>(name: string, detail: T) {
+			node.dispatchEvent(new CustomEvent(name, { detail }));
+		}
+
+		$effect(() => {
+			const ctx = canvas.getContext('2d');
+			if (speedChart) {
+				speedChart.destroy();
+			}
+			speedChart = new Chart(ctx, {
+				type: 'line',
+				data: {
+					labels: $state.snapshot(timeMeasurements),
+					datasets: [
+						{
+							label: 'Download Speed (Mbps)',
+							data: $state.snapshot(bandwidthMeasurements),
+							borderColor: '#4f46e5',
+							backgroundColor: 'rgba(79, 70, 229, 0.1)',
+							tension: 0.4,
+							fill: true
+						}
+					]
+				},
+				options: {
+					animation: false,
+					responsive: true,
+					maintainAspectRatio: false,
+					scales: {
+						y: {
+							beginAtZero: true,
+							title: {
+								display: true,
+								text: 'Speed (Mbps)'
+							}
+						},
+						x: {
+							title: {
+								display: true,
+								text: 'Time (seconds)'
+							}
+						}
+					},
+					plugins: {
+						legend: {
+							position: 'top'
+						},
+						tooltip: {
+							mode: 'index',
+							intersect: false
+						}
+					}
+				}
+			});
+		});
+		dispatch('updated', bandwidthMeasurements);
+		return () => {
+			speedChart.destroy();
+		};
+	};
+</script>
+<!-- Main Card -->
+<div class="bg-white rounded-xl shadow-lg overflow-hidden mb-8 transition-all duration-300 hover:shadow-xl">
+	<div class="p-6 md:p-8">
+		<div class="flex items-center justify-between mb-6">
+			<h2 class="text-xl font-semibold text-gray-800">Connection Statistics</h2>
+			<div id="connection-status" class="flex items-center">
+				<span class="h-3 w-3 rounded-full bg-gray-300 mr-2"></span>
+				<span class="text-sm text-gray-500">Idle</span>
+			</div>
+		</div>
+
+		<!-- Speed Display -->
+		<div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
+			<div class="bg-gray-50 p-4 rounded-lg text-center">
+				<div class="text-gray-500 mb-1 flex justify-center items-center">
+					<i class="fas fa-download mr-2"></i>
+					<span>Download Speed</span>
+				</div>
+				<div id="download-speed" class="text-2xl font-bold text-indigo-600">{currentBandwidth}</div>
+				<div class="text-sm text-gray-400">Mbps</div>
+			</div>
+			<div class="bg-gray-50 p-4 rounded-lg text-center">
+				<div class="text-gray-500 mb-1 flex justify-center items-center">
+					<i class="fas fa-clock mr-2"></i>
+					<span>Latency</span>
+				</div>
+				<div id="latency" class="text-2xl font-bold text-amber-500">{currentLatency}</div>
+				<div class="text-sm text-gray-400">ms</div>
+			</div>
+		</div>
+		<!-- Progress Bar -->
+		<div class="mb-6">
+			<div class="flex justify-between mb-2">
+				<span class="text-sm font-medium text-gray-700">Test Progress</span>
+				<span id="progress-percent" class="text-sm font-medium text-gray-700">0%</span>
+			</div>
+			<div class="w-full bg-gray-200 rounded-full h-2.5">
+				<div id="progress-bar" class="progress-bar h-2.5 rounded-full" style="width: 0%"></div>
+			</div>
+		</div>
+		<!-- Test Controls -->
+		<div class="flex flex-col sm:flex-row justify-center gap-4">
+			<button id="start-test"
+							class="bg-indigo-600 hover:bg-indigo-700 text-white font-medium py-3 px-6 rounded-lg transition-all flex items-center justify-center glow">
+				<i class="fas fa-play mr-2"></i>
+				Start Test
+			</button>
+			<button id="stop-test"
+							class="bg-gray-200 hover:bg-gray-300 text-gray-800 font-medium py-3 px-6 rounded-lg transition-all flex items-center justify-center"
+							disabled>
+				<i class="fas fa-stop mr-2"></i>
+				Stop Test
+			</button>
+		</div>
+	</div>
+</div>
+<!-- Results Graph -->
+<div class="bg-white rounded-xl shadow-lg overflow-hidden mb-8">
+	<div class="p-6 md:p-8">
+		<h2 class="text-xl font-semibold text-gray-800 mb-6">Speed Over Time</h2>
+		<div class="h-64 relative">
+			<canvas id="speed-chart" bind:this={canvas} use:chart></canvas>
+		</div>
+	</div>
+</div>
+<!-- Information Section -->
+<div class="bg-white rounded-xl shadow-lg overflow-hidden">
+	<div class="p-6 md:p-8">
+		<h2 class="text-xl font-semibold text-gray-800 mb-4">About This Test</h2>
+		<div class="prose prose-indigo max-w-none text-gray-600">
+			<p>
+				This bandwidth test measures your connection speed to Hugging Face's servers by downloading and uploading sample
+				files.
+				The test calculates:
+			</p>
+			<ul class="list-disc pl-5 mt-2 space-y-1">
+				<li><strong>Download speed:</strong> How fast data can be transferred from Hugging Face to your device</li>
+				<li><strong>Latency:</strong> The time it takes to establish connection to Hugging Face server</li>
+			</ul>
+			<p class="mt-4">
+				For accurate results, close other bandwidth-intensive applications and ensure you're not on a VPN unless testing
+				through it.
+			</p>
+		</div>
+	</div>
+</div>

src/routes/+page.ts

@@ -0,0 +1,6 @@
+import type { PageLoad } from './$types';
+export const ssr = false;
+
+export const load: PageLoad = ({ params }) => {
+	return {};
+};

svelte.config.js

@@ -0,0 +1,18 @@
+import adapter from '@sveltejs/adapter-auto';
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
+
+/** @type {import('@sveltejs/kit').Config} */
+const config = {
+	// Consult https://svelte.dev/docs/kit/integrations
+	// for more information about preprocessors
+	preprocess: vitePreprocess(),
+
+	kit: {
+		// adapter-auto only supports some environments, see https://svelte.dev/docs/kit/adapter-auto for a list.
+		// If your environment is not supported, or you settled on a specific environment, switch out the adapter.
+		// See https://svelte.dev/docs/kit/adapters for more information about adapters.
+		adapter: adapter()
+	}
+};
+
+export default config;

tsconfig.json

@@ -0,0 +1,19 @@
+{
+	"extends": "./.svelte-kit/tsconfig.json",
+	"compilerOptions": {
+		"allowJs": true,
+		"checkJs": true,
+		"esModuleInterop": true,
+		"forceConsistentCasingInFileNames": true,
+		"resolveJsonModule": true,
+		"skipLibCheck": true,
+		"sourceMap": true,
+		"strict": true,
+		"moduleResolution": "bundler"
+	}
+	// Path aliases are handled by https://svelte.dev/docs/kit/configuration#alias
+	// except $lib which is handled by https://svelte.dev/docs/kit/configuration#files
+	//
+	// If you want to overwrite includes/excludes, make sure to copy over the relevant includes/excludes
+	// from the referenced tsconfig.json - TypeScript does not merge them in
+}

vite.config.ts

@@ -0,0 +1,7 @@
+import tailwindcss from '@tailwindcss/vite';
+import { sveltekit } from '@sveltejs/kit/vite';
+import { defineConfig } from 'vite';
+
+export default defineConfig({
+	plugins: [tailwindcss(), sveltekit()]
+});