first

.gitignore

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

README.md

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+*Looking for a shareable component template? Go here --> [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:5000](http://localhost:5000). 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
+```
+
+## 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",
+  "scripts": {
+    "build": "rollup -c",
+    "dev": "rollup -c -w",
+    "start": "HOST=0.0.0.0 sirv public"
+  },
+  "devDependencies": {
+    "@rollup/plugin-commonjs": "^16.0.0",
+    "@rollup/plugin-node-resolve": "^10.0.0",
+    "eslint": "^7.15.0",
+    "rollup": "^2.3.4",
+    "rollup-plugin-css-only": "^3.0.0",
+    "rollup-plugin-livereload": "^2.0.0",
+    "rollup-plugin-svelte": "^7.0.0",
+    "rollup-plugin-terser": "^7.0.0",
+    "svelte": "^3.0.0",
+    "tinro": "^0.4.2"
+  },
+  "dependencies": {
+    "g": "^2.0.1",
+    "sirv-cli": "^1.0.0",
+    "twilio-sync": "^0.12.4"
+  }
+}

public/global.css

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+html, body {
+	position: relative;
+	width: 100%;
+	height: 100%;
+}
+
+body {
+	color: #333;
+	margin: 0;
+	padding: 8px;
+	box-sizing: border-box;
+	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
+}
+
+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 src="//media.twiliocdn.com/sdk/js/sync/v0.8/twilio-sync.min.js"></script>
+	<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 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({
+			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
+	}
+};

scripts/setupTypeScript.js

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+// @ts-check
+
+/** This script modifies the project to support TS code in .svelte files like:
+
+  <script lang="ts">
+  	export let name: string;
+  </script>
+ 
+  As well as validating the code for CI.
+  */
+
+/**  To work on this script:
+  rm -rf test-template template && git clone sveltejs/template test-template && node scripts/setupTypeScript.js test-template
+*/
+
+const fs = require("fs")
+const path = require("path")
+const { argv } = require("process")
+
+const projectRoot = argv[2] || path.join(__dirname, "..")
+
+// Add deps to pkg.json
+const packageJSON = JSON.parse(fs.readFileSync(path.join(projectRoot, "package.json"), "utf8"))
+packageJSON.devDependencies = Object.assign(packageJSON.devDependencies, {
+  "svelte-check": "^1.0.0",
+  "svelte-preprocess": "^4.0.0",
+  "@rollup/plugin-typescript": "^6.0.0",
+  "typescript": "^3.9.3",
+  "tslib": "^2.0.0",
+  "@tsconfig/svelte": "^1.0.0"
+})
+
+// Add script for checking
+packageJSON.scripts = Object.assign(packageJSON.scripts, {
+  "validate": "svelte-check"
+})
+
+// Write the package JSON
+fs.writeFileSync(path.join(projectRoot, "package.json"), JSON.stringify(packageJSON, null, "  "))
+
+// mv src/main.js to main.ts - note, we need to edit rollup.config.js for this too
+const beforeMainJSPath = path.join(projectRoot, "src", "main.js")
+const afterMainTSPath = path.join(projectRoot, "src", "main.ts")
+fs.renameSync(beforeMainJSPath, afterMainTSPath)
+
+// Switch the app.svelte file to use TS
+const appSveltePath = path.join(projectRoot, "src", "App.svelte")
+let appFile = fs.readFileSync(appSveltePath, "utf8")
+appFile = appFile.replace("<script>", '<script lang="ts">')
+appFile = appFile.replace("export let name;", 'export let name: string;')
+fs.writeFileSync(appSveltePath, appFile)
+
+// Edit rollup config
+const rollupConfigPath = path.join(projectRoot, "rollup.config.js")
+let rollupConfig = fs.readFileSync(rollupConfigPath, "utf8")
+
+// Edit imports
+rollupConfig = rollupConfig.replace(`'rollup-plugin-terser';`, `'rollup-plugin-terser';
+import sveltePreprocess from 'svelte-preprocess';
+import typescript from '@rollup/plugin-typescript';`)
+
+// Replace name of entry point
+rollupConfig = rollupConfig.replace(`'src/main.js'`, `'src/main.ts'`)
+
+// Add preprocessor
+rollupConfig = rollupConfig.replace(
+  'compilerOptions:',
+  'preprocess: sveltePreprocess(),\n\t\t\tcompilerOptions:'
+);
+
+// Add TypeScript
+rollupConfig = rollupConfig.replace(
+  'commonjs(),',
+  'commonjs(),\n\t\ttypescript({\n\t\t\tsourceMap: !production,\n\t\t\tinlineSources: !production\n\t\t}),'
+);
+fs.writeFileSync(rollupConfigPath, rollupConfig)
+
+// Add TSConfig
+const tsconfig = `{
+  "extends": "@tsconfig/svelte/tsconfig.json",
+
+  "include": ["src/**/*"],
+  "exclude": ["node_modules/*", "__sapper__/*", "public/*"]
+}`
+const tsconfigPath =  path.join(projectRoot, "tsconfig.json")
+fs.writeFileSync(tsconfigPath, tsconfig)
+
+// Delete this script, but not during testing
+if (!argv[2]) {
+  // Remove the script
+  fs.unlinkSync(path.join(__filename))
+
+  // Check for Mac's DS_store file, and if it's the only one left remove it
+  const remainingFiles = fs.readdirSync(path.join(__dirname))
+  if (remainingFiles.length === 1 && remainingFiles[0] === '.DS_store') {
+    fs.unlinkSync(path.join(__dirname, '.DS_store'))
+  }
+
+  // Check if the scripts folder is empty
+  if (fs.readdirSync(path.join(__dirname)).length === 0) {
+    // Remove the scripts folder
+    fs.rmdirSync(path.join(__dirname))
+  }
+}
+
+// Adds the extension recommendation
+fs.mkdirSync(path.join(projectRoot, ".vscode"))
+fs.writeFileSync(path.join(projectRoot, ".vscode", "extensions.json"), `{
+  "recommendations": ["svelte.svelte-vscode"]
+}
+`)
+
+console.log("Converted to TypeScript.")
+
+if (fs.existsSync(path.join(projectRoot, "node_modules"))) {
+  console.log("\nYou will need to re-run your dependency manager to get started.")
+}

src/App.svelte

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+<script>
+    import { Route } from 'tinro'
+    import { onMount } from 'svelte'
+    import { writable } from 'svelte/store'
+    import { fade } from 'svelte/transition'
+
+    let twilioReady = false
+    let mounted = false
+    let syncClient, getList, getItems, pushItem, removeItem, updateItem, chores
+
+    onMount(() => {
+        mounted = true
+        if (twilioReady) {
+            setupTwilioClient()
+        }
+    })
+
+    const twilioLoaded = () => {
+        twilioReady = true
+        if (mounted) {
+            setupTwilioClient()
+        }
+    }
+
+    const setupTwilioClient = async () => {
+        try {
+            const response = await fetch('http://localhost:5001/token')
+            const responseJson = await response.json()
+            const token = responseJson.token
+            syncClient = new Twilio.Sync.Client(token, { logLevel: 'info' })
+        } catch (e) {
+          console.log(e)
+        }
+      
+        syncClient.on('connectionStateChanged', state => {
+            if (state != 'connected') {
+                console.log(`Sync is not live (websocket connection ${state})`)
+            } else {
+                console.log('Sync is live!')
+            }
+        })
+
+        getList = async name => syncClient.list(name)
+
+        getItems = async (listName, from, pageSize, order) => {
+            const list = await getList(listName)
+            const items = await list.getItems({from, pageSize, order})
+            return items.items.map(item => item.data)
+        }
+
+        pushItem = async (listName, item) => {
+            const list = await getList(listName)
+            try { 
+                const result = await list.push(item)
+                return result.data
+            } catch (e) {
+                console.log(e)
+            }
+        }
+
+        removeItem = async (listName, index) => {
+            const list = await getList(listName)
+            try { 
+                await list.remove(index)
+            } catch (e) {
+                console.log(e)
+            }
+        }
+
+        updateItem = async (listName, index, value) => {
+            const list = await getList(listName)
+            try { 
+                await list.set(index, value)
+            } catch (e) {
+                console.log(e)
+            }
+        }
+
+        const createSyncStore = listName => {
+            const { set, subscribe, update } = writable([])
+
+            getItems(listName).then(items => set(items))
+
+            getList(listName).then(choreList => {
+                choreList.on('itemAdded', item => {
+                    update(existing => existing.concat(item.item))
+                })
+                choreList.on('itemRemoved', args => {
+                    update(existing => existing.filter(item => item.index !== args.index))
+                })
+                choreList.on('itemUpdated', args => {
+                    update(existing => existing.map(item => {
+                        if (item.index === args.item.index) {
+                            item.value = args.item.value
+                        }
+                    }))
+                })
+            })
+
+            return {
+                subscribe,
+                add: chore => pushItem(listName, { chore }),
+                delete: index => removeItem(listName, index),
+                update: (index, value) => updateItem(listName, index, value)
+            }
+        }
+
+        chores = createSyncStore('chores')
+    }
+
+    $: console.log($chores)
+
+    let newChore = ''
+    const createChore = () => {
+        chores.add(newChore)
+        newChore = ''
+    }
+
+    const deleteChore = index => chores.delete(index)
+
+    const updateChore = (index, newValue) => {
+        chores.update(index, newValue)
+    }
+
+
+</script>
+
+<svelte:head>
+    <script src="//media.twiliocdn.com/sdk/js/sync/v0.8/twilio-sync.min.js" on:load={twilioLoaded}></script>
+    <script src="http://api.ipify.org?format=jsonp&callback=getIP"></script>
+    <script>function getIP(json) { console.log(json.ip) }</script>
+</svelte:head>
+
+<nav>
+</nav>
+
+<Route path="/">
+    <form on:submit|preventDefault={createChore}>
+        <input bind:value={newChore} type=text>
+        <input style="cursor:pointer" type=submit disabled={newChore === ""}>
+    </form>
+    <div>
+        {#if $chores && $chores.length > 0}
+            {#each $chores as chore}
+                <div in:fade>
+                    {chore.value.chore}
+                    <button style="cursor: pointer" on:click={() => deleteChore(chore.index)}>delete</button>
+                </div>
+            {/each}
+        {/if}
+    </div>
+</Route>
+

src/main.js

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