init commit

.gitignore

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+/node_modules/
+/public/build/
+
+.DS_Store

README.md

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+*Psst — looking for a more complete solution? Check out [SvelteKit](https://kit.svelte.dev), the official framework for building web applications of all sizes, with a beautiful development experience and flexible filesystem-based routing.*
+
+*Looking for a shareable component template instead? You can [use SvelteKit for that as well](https://kit.svelte.dev/docs#packaging) or the older [sveltejs/component-template](https://github.com/sveltejs/component-template)*
+
+---
+
+# svelte app
+
+This is a project template for [Svelte](https://svelte.dev) apps. It lives at https://github.com/sveltejs/template.
+
+To create a new project based on this template using [degit](https://github.com/Rich-Harris/degit):
+
+```bash
+npx degit sveltejs/template svelte-app
+cd svelte-app
+```
+
+*Note that you will need to have [Node.js](https://nodejs.org) installed.*
+
+
+## Get started
+
+Install the dependencies...
+
+```bash
+cd svelte-app
+npm install
+```
+
+...then start [Rollup](https://rollupjs.org):
+
+```bash
+npm run dev
+```
+
+Navigate to [localhost:8080](http://localhost:8080). You should see your app running. Edit a component file in `src`, save it, and reload the page to see your changes.
+
+By default, the server will only respond to requests from localhost. To allow connections from other computers, edit the `sirv` commands in package.json to include the option `--host 0.0.0.0`.
+
+If you're using [Visual Studio Code](https://code.visualstudio.com/) we recommend installing the official extension [Svelte for VS Code](https://marketplace.visualstudio.com/items?itemName=svelte.svelte-vscode). If you are using other editors you may need to install a plugin in order to get syntax highlighting and intellisense.
+
+## Building and running in production mode
+
+To create an optimised version of the app:
+
+```bash
+npm run build
+```
+
+You can run the newly built app with `npm run start`. This uses [sirv](https://github.com/lukeed/sirv), which is included in your package.json's `dependencies` so that the app will work when you deploy to platforms like [Heroku](https://heroku.com).
+
+
+## Single-page app mode
+
+By default, sirv will only respond to requests that match files in `public`. This is to maximise compatibility with static fileservers, allowing you to deploy your app anywhere.
+
+If you're building a single-page app (SPA) with multiple routes, sirv needs to be able to respond to requests for *any* path. You can make it so by editing the `"start"` command in package.json:
+
+```js
+"start": "sirv public --single"
+```
+
+## Using TypeScript
+
+This template comes with a script to set up a TypeScript development environment, you can run it immediately after cloning the template with:
+
+```bash
+node scripts/setupTypeScript.js
+```
+
+Or remove the script via:
+
+```bash
+rm scripts/setupTypeScript.js
+```
+
+If you want to use `baseUrl` or `path` aliases within your `tsconfig`, you need to set up `@rollup/plugin-alias` to tell Rollup to resolve the aliases. For more info, see [this StackOverflow question](https://stackoverflow.com/questions/63427935/setup-tsconfig-path-in-svelte).
+
+## Deploying to the web
+
+### With [Vercel](https://vercel.com)
+
+Install `vercel` if you haven't already:
+
+```bash
+npm install -g vercel
+```
+
+Then, from within your project folder:
+
+```bash
+cd public
+vercel deploy --name my-project
+```
+
+### With [surge](https://surge.sh/)
+
+Install `surge` if you haven't already:
+
+```bash
+npm install -g surge
+```
+
+Then, from within your project folder:
+
+```bash
+npm run build
+surge public my-project.surge.sh
+```

package.json

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+{
+  "name": "svelte-app",
+  "version": "1.0.0",
+  "private": true,
+  "scripts": {
+    "build": "rollup -c",
+    "dev": "rollup -c -w",
+    "start": "sirv public --no-clear"
+  },
+  "devDependencies": {
+    "@rollup/plugin-commonjs": "^17.0.0",
+    "@rollup/plugin-node-resolve": "^11.0.0",
+    "attractions": "^3.7.0",
+    "postcss": "^8.4.7",
+    "rollup": "^2.3.4",
+    "rollup-plugin-css-only": "^3.1.0",
+    "rollup-plugin-livereload": "^2.0.0",
+    "rollup-plugin-svelte": "^7.0.0",
+    "rollup-plugin-terser": "^7.0.0",
+    "sass": "^1.49.9",
+    "svelte": "^3.0.0",
+    "svelte-preprocess": "^4.10.4"
+  },
+  "dependencies": {
+    "sirv-cli": "^2.0.0"
+  }
+}

public/global.css

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+html, body {
+	position: relative;
+	width: 100%;
+	height: 100%;
+}
+
+@import url('https://rsms.me/inter/inter.css');
+html { font-family: 'Inter', sans-serif; }
+@supports (font-variation-settings: normal) {
+  html { font-family: 'Inter var', sans-serif; }
+}
+
+body {
+	color: #333;
+	margin: 0;
+	padding: 8px;
+	box-sizing: border-box;
+}
+
+a {
+	color: rgb(0,100,200);
+	text-decoration: none;
+}
+
+a:hover {
+	text-decoration: underline;
+}
+
+a:visited {
+	color: rgb(0,80,160);
+}
+
+label {
+	display: block;
+}
+
+input, button, select, textarea {
+	font-family: inherit;
+	font-size: inherit;
+	-webkit-padding: 0.4em 0;
+	padding: 0.4em;
+	margin: 0 0 0.5em 0;
+	box-sizing: border-box;
+	border: 1px solid #ccc;
+	border-radius: 2px;
+}
+
+input:disabled {
+	color: #ccc;
+}
+
+button {
+	color: #333;
+	background-color: #f4f4f4;
+	outline: none;
+}
+
+button:disabled {
+	color: #999;
+}
+
+button:not(:disabled):active {
+	background-color: #ddd;
+}
+
+button:focus {
+	border-color: #666;
+}

public/index.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset='utf-8'>
+	<meta name='viewport' content='width=device-width,initial-scale=1'>
+
+	<title>Svelte app</title>
+
+	<link rel='icon' type='image/png' href='/favicon.png'>
+	<link rel='stylesheet' href='/global.css'>
+	<link rel='stylesheet' href='/build/bundle.css'>
+
+	<script defer src='/build/bundle.js'></script>
+</head>
+
+<body>
+</body>
+</html>

rollup.config.js

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+import svelte from 'rollup-plugin-svelte';
+import commonjs from '@rollup/plugin-commonjs';
+import resolve from '@rollup/plugin-node-resolve';
+import livereload from 'rollup-plugin-livereload';
+import { terser } from 'rollup-plugin-terser';
+import css from 'rollup-plugin-css-only';
+const svelteConfig = require('./svelte.config.js');
+
+const production = !process.env.ROLLUP_WATCH;
+
+function serve() {
+	let server;
+
+	function toExit() {
+		if (server) server.kill(0);
+	}
+
+	return {
+		writeBundle() {
+			if (server) return;
+			server = require('child_process').spawn('npm', ['run', 'start', '--', '--dev'], {
+				stdio: ['ignore', 'inherit', 'inherit'],
+				shell: true
+			});
+
+			process.on('SIGTERM', toExit);
+			process.on('exit', toExit);
+		}
+	};
+}
+
+export default {
+	input: 'src/main.js',
+	output: {
+		sourcemap: true,
+		format: 'iife',
+		name: 'app',
+		file: 'public/build/bundle.js'
+	},
+	plugins: [
+		svelte({
+			...svelteConfig,
+			compilerOptions: {
+				// enable run-time checks when not in production
+				dev: !production
+			}
+		}),
+		// we'll extract any component CSS out into
+		// a separate file - better for performance
+		css({ output: 'bundle.css' }),
+
+		// If you have external dependencies installed from
+		// npm, you'll most likely need these plugins. In
+		// some cases you'll need additional configuration -
+		// consult the documentation for details:
+		// https://github.com/rollup/plugins/tree/master/packages/commonjs
+		resolve({
+			browser: true,
+			dedupe: ['svelte']
+		}),
+		commonjs(),
+
+		// In dev mode, call `npm run start` once
+		// the bundle has been generated
+		!production && serve(),
+
+		// Watch the `public` directory and refresh the
+		// browser on changes when not in production
+		!production && livereload('public'),
+
+		// If we're building for production (npm run build
+		// instead of npm run dev), minify
+		production && terser()
+	],
+	watch: {
+		clearScreen: false
+	}
+};

src/App.svelte

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+<script>
+	import { currentChartID } from './stores';
+	import ChartEdit from './ChartEdit.svelte';
+	import ChartCreation from './ChartCreation.svelte';
+</script>
+
+<main>
+	{#if $currentChartID}
+		<ChartEdit/>
+	{:else}
+		<ChartCreation/>
+	{/if}
+</main>
+
+<style>
+</style>

src/ChartCreation.svelte

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+<script>
+  import { Button } from 'attractions';
+</script>
+
+<Button>click me</Button>
+
+<style>
+
+</style>

src/main.js

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+import App from './App.svelte';
+
+const app = new App({
+	target: document.body,
+	props: {
+	}
+});
+
+export default app;

src/stores.js

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+import { writable } from "svelte/store";
+
+export const currentChartID = writable(null);

svelte.config.js

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+const sveltePreprocess = require('svelte-preprocess');
+
+module.exports = {
+  preprocess: [sveltePreprocess()],
+};