.dockerignore

@@ -0,0 +1,5 @@
+.svelte-kit/
+.vscode/
+
+node_modules/
+test-results/

.gitignore

@@ -0,0 +1,24 @@
+node_modules
+
+# Output
+.output
+.vercel
+/.svelte-kit
+/build
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Env
+.env
+.env.*
+!.env.example
+!.env.test
+
+# Vite
+vite.config.js.timestamp-*
+vite.config.ts.timestamp-*
+
+# tests
+test-results

.npmrc

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

.prettierignore

@@ -0,0 +1,4 @@
+# Package Managers
+package-lock.json
+pnpm-lock.yaml
+yarn.lock

.prettierrc

@@ -0,0 +1,8 @@
+{
+  "useTabs": false,
+  "singleQuote": true,
+  "trailingComma": "all",
+  "printWidth": 100,
+  "plugins": ["prettier-plugin-svelte"],
+  "overrides": [{ "files": "*.svelte", "options": { "parser": "svelte" } }]
+}

.vscode/settings.json

@@ -0,0 +1,29 @@
+{
+  "cSpell.words": [
+    "devcontainers",
+    "doctypes",
+    "esbenp",
+    "iconify",
+    "pandoc",
+    "pdoc",
+    "rehype",
+    "resumarkdown",
+    "résumé",
+    "spacebar",
+    "tablist",
+    "testid",
+    "texlive",
+    "textbox"
+  ],
+  "editor.formatOnSave": true,
+  "editor.insertSpaces": true,
+  "editor.tabSize": 2,
+  "files.insertFinalNewline": true,
+  "svelte.enable-ts-plugin": true,
+  "[javascript][json][jsonc][typescript]": {
+    "editor.defaultFormatter": "esbenp.prettier-vscode"
+  },
+  "[svelte]": {
+    "editor.defaultFormatter": "svelte.svelte-vscode"
+  }
+}

Dockerfile

@@ -0,0 +1,17 @@
+# This Source Code Form is subject to the terms of the Mozilla Public License,
+# v. 2.0. If a copy of the MPL was not distributed with this file, You can
+# obtain one at https://mozilla.org/MPL/2.0/.
+
+FROM node:22.11.0-bookworm-slim AS builder
+WORKDIR /app
+COPY . .
+RUN npm install && npm run build
+
+FROM node:22.11.0-bookworm-slim AS runner
+LABEL maintainer="Nicola Clark <nicola@slottedspoon.dev>"
+EXPOSE 3000
+WORKDIR /app
+COPY package.json package-lock.json ./
+COPY --from=builder /app/build ./build
+RUN npm ci --omit dev
+CMD ["node", "build"]

LICENSE

@@ -35,7 +35,7 @@ Mozilla Public License Version 2.0
     means any form of the work other than Source Code Form.
 
 1.7. "Larger Work"
-    means a work that combines Covered Software with other material, in 
+    means a work that combines Covered Software with other material, in
     a separate file or files, that is not Covered Software.
 
 1.8. "License"

LICENSE.up-to-ea30f9

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Nicola Clark
+
+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.

README.md

@@ -1,3 +1,23 @@
 # resumarkdown
 
-Create a résumé with Markdown and CSS
+Create a resume with Markdown and CSS
+
+## Previous location
+
+This repository was previously hosted on
+[GitHub](https://github.com/tweakdeveloper/resumarkdown). Due to GitHub's
+expansion of Copilot (see [the License section](#license) for further details),
+it has been moved to this self-hosted repository.
+
+## License
+
+This repository's code was licensed under the terms of
+[the MIT license](LICENSE.up-to-ea30f9) up to and including commit ea30f9. You
+may apply this license's terms to all work that appears in the repository prior
+to this commit ("this commit" referring to the commit immediately following
+ea30f9).
+
+From this commit forward, the code in this repo is licensed under the terms of
+the [Mozilla Public License 2.0](https://mozilla.org/MPL/2.0/). This change was
+made due to GitHub's lack of transparency vis-à-vis Copilot's use of public
+repositories for the purposes of training their LLM.

package.json

@@ -0,0 +1,51 @@
+{
+  "name": "resumarkdown",
+  "version": "0.0.1",
+  "private": true,
+  "license": "MPL-2.0",
+  "scripts": {
+    "dev": "vite dev --host",
+    "build": "vite build",
+    "preview": "vite preview",
+    "test": "npm run test:integration && npm run test:unit",
+    "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+    "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
+    "test:integration": "playwright test",
+    "test:unit": "vitest",
+    "lint": "prettier --check .",
+    "format": "prettier --write ."
+  },
+  "dependencies": {
+    "hast": "^0.0.2",
+    "hastscript": "^9.0.0",
+    "iconify-icon": "^2.1.0",
+    "rehype-document": "^7.0.3",
+    "rehype-sanitize": "^6.0.0",
+    "rehype-stringify": "^10.0.1",
+    "remark-parse": "^11.0.0",
+    "remark-rehype": "^11.1.1",
+    "ua-parser-js": "^1.0.39",
+    "unified": "^11.0.5"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.28.1",
+    "@sveltejs/adapter-auto": "^3.0.0",
+    "@sveltejs/adapter-node": "^5.2.9",
+    "@sveltejs/kit": "^2.5.27",
+    "@sveltejs/vite-plugin-svelte": "^4.0.0-next.0",
+    "@types/node": "^22.9.0",
+    "@types/ua-parser-js": "^0.7.39",
+    "@types/user-agents": "^1.0.4",
+    "less": "^4.2.0",
+    "prettier": "^3.1.1",
+    "prettier-plugin-svelte": "^3.2.6",
+    "svelte": "^5.0.0-next.0",
+    "svelte-check": "^4.0.0",
+    "svelte-preprocess": "^6.0.3",
+    "typescript": "^5.5.0",
+    "user-agents": "^1.1.325",
+    "vite": "^5.4.4",
+    "vitest": "^2.0.0"
+  },
+  "type": "module"
+}

playwright.config.ts

@@ -0,0 +1,28 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import type { PlaywrightTestConfig } from '@playwright/test';
+
+const config: PlaywrightTestConfig = {
+  webServer: {
+    command: 'npm run build && npm run preview',
+    port: 4173,
+  },
+  expect: {
+    timeout: 2.5 * 1000,
+  },
+  testDir: 'tests',
+  testMatch: /(.+\.)?(test|spec)\.[jt]s/,
+  timeout: 5 * 1000,
+  use: {
+    viewport: {
+      height: 900,
+      width: 1600,
+    },
+  },
+};
+
+export default config;

src/app.d.ts

@@ -0,0 +1,19 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+// See https://kit.svelte.dev/docs/types#app
+// for information about these interfaces
+declare global {
+  namespace App {
+    // interface Error {}
+    // interface Locals {}
+    // interface PageData {}
+    // interface PageState {}
+    // interface Platform {}
+  }
+}
+
+export {};

src/app.html

@@ -0,0 +1,17 @@
+<!doctype html>
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+<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">
+    <div style="display: contents">%sveltekit.body%</div>
+  </body>
+</html>

src/app.less

@@ -0,0 +1,25 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+@import 'styles.less';
+
+@import (css) url('https://fonts.googleapis.com/css2?family=Rubik:wght@400..700&display=swap');
+
+html,
+body {
+  height: 100%;
+}
+
+body {
+  font-family: @fonts-sans;
+  margin: 0;
+}
+
+h1 {
+  font-weight: @font-w-bold;
+  margin: 0;
+  padding: 0;
+}

src/index.test.ts

@@ -0,0 +1,13 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { describe, it, expect } from 'vitest';
+
+describe('sum test', () => {
+  it('adds 1 + 2 to equal 3', () => {
+    expect(1 + 2).toBe(3);
+  });
+});

src/lib/components/code-input.svelte

@@ -0,0 +1,23 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  interface Props {
+    code: string;
+  }
+
+  let { code = $bindable() }: Props = $props();
+</script>
+
+<textarea bind:value={code}></textarea>
+
+<style lang="less">
+  textarea {
+    .container-content();
+
+    resize: none;
+  }
+</style>

src/lib/components/editor.svelte

@@ -0,0 +1,42 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  import { type Snippet } from 'svelte';
+
+  import { pane as navStore, type Pane } from '$lib/stores/nav.js';
+
+  interface Props {
+    pane: Pane;
+    testid?: string;
+    children?: Snippet;
+  }
+
+  let { pane, testid, children }: Props = $props();
+
+  // don't show pane if we're not the current pane
+  let hidden: boolean = $derived(pane !== $navStore);
+</script>
+
+<div id={`pane-${pane}`} data-testid={testid} role="tabpanel" class:hidden>
+  {@render children?.()}
+</div>
+
+<style lang="less">
+  div {
+    .container();
+
+    grid-area: editor;
+
+    &.hidden {
+      display: none;
+    }
+
+    @media screen and (min-width: @sizes[lg]) {
+      border-right: 2px solid @color-dark;
+    }
+  }
+</style>

src/lib/components/headline.svelte

@@ -0,0 +1,33 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  import { type Snippet } from 'svelte';
+
+  interface Props {
+    children: Snippet;
+  }
+
+  let { children }: Props = $props();
+</script>
+
+<header>
+  <h1>{@render children()}</h1>
+</header>
+
+<style lang="less">
+  h1 {
+    background-color: @color-dark;
+    font-size: @font-s-lg;
+    color: @color-light;
+    padding: @padding-md;
+    text-align: center;
+  }
+
+  header {
+    grid-area: headline;
+  }
+</style>

src/lib/components/nav-item.svelte

@@ -0,0 +1,72 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  import { type Snippet } from 'svelte';
+
+  import { pane, type Pane } from '$lib/stores/nav.js';
+
+  interface Props {
+    destination: Pane;
+    children: Snippet;
+  }
+
+  let { destination, children }: Props = $props();
+
+  let selected: boolean = $derived(destination === $pane);
+
+  function handleKey({ key }: KeyboardEvent) {
+    if (key === ' ' || key === 'Enter' || key === 'Spacebar') {
+      navigate();
+    }
+  }
+
+  function navigate() {
+    pane.set(destination);
+  }
+</script>
+
+<li
+  aria-controls={`pane-${destination}`}
+  aria-selected={selected}
+  role="tab"
+  tabindex="0"
+  class:selected
+  onclick={navigate}
+  onkeyup={handleKey}
+>
+  {@render children()}
+</li>
+
+<style lang="less">
+  li {
+    .selectable();
+
+    @separator: 1px solid @color-dark;
+
+    &.selected {
+      background-color: darken(@color-light, 20%);
+    }
+
+    &:focus,
+    &:hover {
+      background-color: darken(@color-light, 10%);
+    }
+
+    &:not(:last-of-type) {
+      border-bottom: @separator;
+    }
+
+    @media screen and (min-width: @sizes[lg]) {
+      flex: 1;
+
+      &:not(:last-of-type) {
+        border-bottom: none;
+        border-right: @separator;
+      }
+    }
+  }
+</style>

src/lib/components/nav-toggle.svelte

@@ -0,0 +1,34 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  interface Props {
+    navOpen: boolean;
+  }
+
+  let { navOpen = $bindable() }: Props = $props();
+
+  // if nav is open, we should "hide" it on press. if not, we should "show" it.
+  let action: string = $derived(navOpen ? 'hide' : 'show');
+
+  function toggle() {
+    navOpen = !navOpen;
+  }
+</script>
+
+<button onclick={toggle}>{action} navigation</button>
+
+<style lang="less">
+  button {
+    background-color: lighten(@color-dark, 10%);
+    border: none;
+    color: @color-light;
+    font-size: @font-s-md;
+    font-weight: @font-w-semibold;
+    padding: @padding-sm;
+    width: 100%;
+  }
+</style>

src/lib/components/nav-tree.svelte

@@ -0,0 +1,56 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  import { type Snippet } from 'svelte';
+  import { slide } from 'svelte/transition';
+
+  import NavToggle from './nav-toggle.svelte';
+
+  interface Props {
+    mobile?: boolean;
+    children: Snippet;
+  }
+
+  let { mobile = true, children }: Props = $props();
+
+  let open: boolean = $state(false);
+</script>
+
+<nav>
+  {#if mobile}
+    <NavToggle bind:navOpen={open} />
+  {/if}
+  {#if open || !mobile}
+    <ul role="tablist" transition:slide={{ duration: 300 }}>
+      {@render children()}
+    </ul>
+  {/if}
+</nav>
+
+<style lang="less">
+  nav {
+    grid-area: navtree;
+  }
+
+  ul {
+    @border: 2px solid @color-dark;
+
+    border-bottom: @border;
+    box-sizing: border-box;
+    list-style-type: none;
+    margin: 0;
+    padding: 0;
+
+    @media screen and (min-width: @sizes[lg]) {
+      align-items: stretch;
+      border-right: @border;
+      display: flex;
+      flex-direction: row;
+      justify-content: space-between;
+    }
+  }
+</style>

src/lib/components/preview.svelte

@@ -0,0 +1,102 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  import 'iconify-icon';
+
+  import { pane } from '$lib/stores/nav.js';
+  import renderPreview from '$lib/render-preview';
+
+  interface Props {
+    mobile?: boolean;
+    markdown: string;
+    stylesheet: string;
+  }
+
+  let { mobile = true, markdown, stylesheet }: Props = $props();
+
+  let hidden: boolean = $derived(mobile ? $pane !== 'preview' : true);
+
+  let output: Promise<string> = $derived(renderPreview(markdown, stylesheet));
+
+  let previewFrame = $state<HTMLIFrameElement | undefined>();
+
+  async function performRender(event: MouseEvent) {
+    event.preventDefault();
+    previewFrame?.contentWindow?.postMessage('print');
+  }
+</script>
+
+<main class:hidden class:mobile data-testid="preview-pane">
+  {#await output}
+    <p>processing...</p>
+  {:then result}
+    <iframe title="résumé preview" srcdoc={result} bind:this={previewFrame}></iframe>
+    <button type="submit" onclick={performRender}>
+      <span>download</span>
+      <iconify-icon icon="ion:download-outline" height="1.25em"></iconify-icon>
+    </button>
+  {:catch err}
+    <p style:color="red">error: {err}!</p>
+  {/await}
+</main>
+
+<style lang="less">
+  main {
+    .container();
+
+    display: flex;
+    flex-flow: column nowrap;
+    gap: @padding-lg-y;
+    grid-area: preview;
+
+    button {
+      .selectable();
+
+      background-color: lighten(@color-dark, 10%);
+      border: 1px solid @color-dark;
+      border-radius: @border-r-xl;
+      color: @color-light;
+      font-size: @font-s-sm;
+      font-weight: @font-w-semibold;
+      padding: @padding-md;
+
+      &:focus {
+        background-color: lighten(@color-dark, 20%);
+      }
+
+      &:hover {
+        background-color: lighten(@color-dark, 15%);
+      }
+
+      & > iconify-icon,
+      & > span {
+        vertical-align: middle;
+      }
+
+      iconify-icon {
+        height: 1.25em;
+        width: 1.25em;
+      }
+    }
+
+    iframe {
+      .container-content();
+    }
+
+    &.mobile {
+      grid-area: editor;
+
+      &.hidden {
+        display: none;
+      }
+    }
+
+    @media screen and (min-width: @sizes[lg]) {
+      gap: @padding-xl-y;
+    }
+  }
+</style>

src/lib/render-preview.ts

@@ -0,0 +1,79 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { type Element as HastElement, type Root as HastRoot } from 'hast';
+import { h } from 'hastscript';
+import rehypeDocument from 'rehype-document';
+import rehypeSanitize, { defaultSchema } from 'rehype-sanitize';
+import rehypeStringify from 'rehype-stringify';
+import remarkParse from 'remark-parse';
+import remarkRehype from 'remark-rehype';
+import { unified, type Plugin } from 'unified';
+
+const printScript = `
+window.addEventListener('message', (evt) => {
+  if (evt.data === 'print') {
+    window.print();
+  }
+});
+`;
+
+const removePrintMarginsStyle = `
+@page {
+  margin-bottom: 0;
+  margin-top: 0;
+}
+`;
+
+const injectPrintScript: Plugin<[], HastRoot> = function () {
+  return (tree) => {
+    const printScriptNode = h('script', printScript);
+    const htmlNode = tree.children.find(
+      (node) => node.type === 'element' && node.tagName === 'html',
+    ) as HastElement;
+    const bodyNode = htmlNode.children.find(
+      (node) => node.type === 'element' && node.tagName === 'body',
+    ) as HastElement;
+    bodyNode.children.push(printScriptNode);
+  };
+};
+
+const injectRemovePrintMarginsStyle: Plugin<[], HastRoot> = function () {
+  return (tree) => {
+    const removePrintMarginsStyleNode = h('style', removePrintMarginsStyle);
+    const htmlNode = tree.children.find(
+      (node) => node.type === 'element' && node.tagName === 'html',
+    ) as HastElement;
+    const headNode = htmlNode.children.find(
+      (node) => node.type === 'element' && node.tagName === 'head',
+    ) as HastElement;
+    headNode.children.push(removePrintMarginsStyleNode);
+  };
+};
+
+const renderPreview = async (markdown: string, stylesheet: string): Promise<string> => {
+  let allowedTags: string[] = ['body', 'head', 'html', 'style'];
+  if (defaultSchema.tagNames) {
+    allowedTags = [...defaultSchema.tagNames, ...allowedTags];
+  }
+  return String(
+    await unified()
+      .use(remarkParse)
+      .use(remarkRehype)
+      .use(rehypeDocument, { style: stylesheet })
+      .use(rehypeSanitize, {
+        ...defaultSchema,
+        allowDoctypes: true,
+        tagNames: allowedTags,
+      })
+      .use(injectRemovePrintMarginsStyle)
+      .use(injectPrintScript)
+      .use(rehypeStringify)
+      .process(markdown),
+  );
+};
+
+export default renderPreview;

src/lib/stores/nav.ts

@@ -0,0 +1,11 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { writable } from 'svelte/store';
+
+export type Pane = 'content' | 'style' | 'preview';
+
+export const pane = writable<Pane>('content');

src/routes/+layout.server.ts

@@ -0,0 +1,20 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { type RequestEvent } from '@sveltejs/kit';
+
+import { UAParser } from 'ua-parser-js';
+
+export async function load({ request }: RequestEvent) {
+  const ua = request.headers.get('user-agent');
+
+  if (!ua) {
+    return { mobile: true };
+  }
+
+  const { device } = UAParser(ua);
+  return { mobile: device.type === 'mobile' };
+}

src/routes/+layout.svelte

@@ -0,0 +1,19 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  import { type Snippet } from 'svelte';
+
+  import '../app.less';
+
+  interface Props {
+    children: Snippet;
+  }
+
+  let { children }: Props = $props();
+</script>
+
+{@render children()}

src/routes/+page.svelte

@@ -0,0 +1,143 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+
+<script lang="ts">
+  import { onMount } from 'svelte';
+  import { get } from 'svelte/store';
+
+  import type { PageData } from './$types';
+
+  import { pane } from '$lib/stores/nav.js';
+
+  import CodeInput from '$lib/components/code-input.svelte';
+  import Editor from '$lib/components/editor.svelte';
+  import Headline from '$lib/components/headline.svelte';
+  import NavItem from '$lib/components/nav-item.svelte';
+  import NavTree from '$lib/components/nav-tree.svelte';
+  import Preview from '$lib/components/preview.svelte';
+
+  interface Props {
+    data: PageData;
+  }
+
+  let { data }: Props = $props();
+
+  let mobile: boolean = $state(data.mobile);
+
+  function checkIsDesktop() {
+    // TODO: figure out how to remove hard-coded value here
+    mobile = !window.matchMedia('screen and (min-width: 1280px)').matches;
+
+    if (!mobile && get(pane) === 'preview') {
+      pane.set('content');
+    }
+  }
+
+  onMount(() => {
+    checkIsDesktop();
+
+    window.addEventListener('resize', checkIsDesktop);
+
+    return () => {
+      window.removeEventListener('resize', checkIsDesktop);
+    };
+  });
+
+  let markdown: string = $state('');
+  let stylesheet: string = $state('');
+</script>
+
+<svelte:head>
+  <title>resumarkdown</title>
+</svelte:head>
+<div>
+  <Headline>resumarkdown</Headline>
+  <NavTree {mobile}>
+    <NavItem destination="content">content</NavItem>
+    <NavItem destination="style">style</NavItem>
+    {#if mobile}
+      <NavItem destination="preview">preview</NavItem>
+    {/if}
+  </NavTree>
+  <Editor pane="content" testid="content-pane">
+    <CodeInput bind:code={markdown} />
+  </Editor>
+  <Editor pane="style" testid="style-pane">
+    <CodeInput bind:code={stylesheet} />
+  </Editor>
+  <Preview {mobile} {markdown} {stylesheet} />
+  <footer>
+    <p>
+      made with &#x2764; by
+      <a href="https://github.com/tweakdeveloper" title="my github profile">@tweakdeveloper</a>
+    </p>
+    <a href="/attributions">attributions</a>
+  </footer>
+</div>
+
+<style lang="less">
+  div {
+    align-content: start;
+    display: grid;
+    grid-template-areas:
+      'headline'
+      'navtree'
+      'editor'
+      'footer';
+    grid-template-rows: min-content min-content 1fr;
+    height: 100%;
+
+    @media screen and (min-width: @sizes[lg]) {
+      grid-template-columns: repeat(2, 1fr);
+      grid-template-areas:
+        'headline headline'
+        'navtree preview'
+        'editor preview'
+        'footer footer';
+    }
+  }
+
+  footer {
+    align-items: center;
+    background-color: @color-dark;
+    border-top: 2px solid @color-dark;
+    box-sizing: border-box;
+    color: @color-light;
+    display: flex;
+    flex-flow: column nowrap;
+    gap: @padding-md-y;
+    grid-area: footer;
+    justify-content: space-between;
+    padding: @padding-lg;
+
+    @media screen and (min-width: @sizes[lg]) {
+      flex-flow: row nowrap;
+      gap: @padding-sm-y;
+      padding: @padding-md;
+    }
+  }
+
+  footer a {
+    color: @color-light;
+    transition: color 0.2s;
+
+    &:visited {
+      color: darken(@color-light, 30%);
+    }
+
+    &:hover {
+      color: darken(@color-light, 20%);
+    }
+
+    &:active {
+      color: darken(@color-light, 10%);
+    }
+  }
+
+  footer p {
+    margin: 0;
+  }
+</style>

src/routes/attributions/+page.svelte

@@ -0,0 +1,6 @@
+<!--
+  This Source Code Form is subject to the terms of the Mozilla Public License,
+  v. 2.0. If a copy of the MPL was not distributed with this file, You can
+  obtain one at https://mozilla.org/MPL/2.0/.
+-->
+

src/styles.less

@@ -0,0 +1,78 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+// colors
+@color-accent-dark: #a8c3b5;
+@color-accent-light: #558b6e;
+@color-danger: #d64933;
+@color-dark: #2e282a;
+@color-light: #fbfbfb;
+
+// fonts
+@fonts-sans: Rubik, Arial, sans-serif;
+@font-s-lg: 2rem;
+@font-s-md: 1.25rem;
+@font-s-sm: 1rem;
+@font-w-bold: 700;
+@font-w-semibold: 600;
+
+// layout
+@border-r-xl: 0.75em;
+@padding-md: @padding-md-y @padding-md-x;
+@padding-md-x: 1em;
+@padding-md-y: 0.5em;
+@padding-lg: @padding-lg-y @padding-lg-x;
+@padding-lg-x: 1.5em;
+@padding-lg-y: 1em;
+@padding-sm: @padding-sm-y @padding-sm-x;
+@padding-sm-x: 0.875em;
+@padding-sm-y: 0.375em;
+@padding-xl: @padding-xl-y @padding-xl-x;
+@padding-xl-x: 2em;
+@padding-xl-y: 1.5em;
+
+// sizes
+@sizes: {
+  lg: 1280px;
+};
+
+// utils
+.full-without-padding(@padding) {
+  @result: calc(100% - @padding * 2);
+}
+
+// shared sizing mixins
+.container() {
+  box-sizing: border-box;
+  padding: @padding-lg;
+
+  @media screen and (min-width: @sizes[lg]) {
+    padding: @padding-xl;
+  }
+}
+
+.container-content() {
+  border: 1px solid @color-dark;
+  border-radius: @border-r-xl;
+  box-sizing: border-box;
+  font-size: @font-s-md;
+  height: 100%;
+  padding: @padding-lg;
+  width: 100%;
+
+  @media screen and (min-width: @sizes[lg]) {
+    font-size: unset;
+  }
+}
+
+// shared interactivity mixins
+.selectable() {
+  font-weight: @font-w-semibold;
+  margin: 0;
+  padding: @padding-md;
+  text-align: center;
+  transition: background-color 0.2s;
+}

svelte.config.js

@@ -0,0 +1,33 @@
+/*                                                                              
+ * This Source Code Form is subject to the terms of the Mozilla Public License, 
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can     
+ * obtain one at https://mozilla.org/MPL/2.0/.                                  
+ */
+
+import adapter from '@sveltejs/adapter-node';
+
+import { sveltePreprocess } from 'svelte-preprocess';
+
+/** @type {import('@sveltejs/kit').Config} */
+const config = {
+  // Consult https://kit.svelte.dev/docs/integrations#preprocessors
+  // for more information about preprocessors
+  preprocess: sveltePreprocess({
+    less: {
+      prependData: `@import 'src/styles.less';`,
+    },
+  }),
+
+  kit: {
+    // adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.
+    // If your environment is not supported, or you settled on a specific environment, switch out the adapter.
+    // See https://kit.svelte.dev/docs/adapters for more information about adapters.
+    adapter: adapter(),
+  },
+
+  compilerOptions: {
+    runes: true,
+  },
+};
+
+export default config;

tests/desktop.test.ts

@@ -0,0 +1,28 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { expect, test } from '@playwright/test';
+
+test('desktop page has nav tree', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByRole('navigation')).toBeVisible();
+});
+
+test('desktop page does not have nav toggle', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByRole('navigation').getByRole('button')).toBeHidden();
+});
+
+test('desktop page has two-column layout', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByTestId('content-pane')).toBeVisible();
+  await expect(page.getByTestId('preview-pane')).toBeVisible();
+});
+
+test('desktop page has no "preview" nav item', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByRole('tab').filter({ hasText: 'preview' })).toBeHidden();
+});

tests/general.test.ts

@@ -0,0 +1,41 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { expect, test } from '@playwright/test';
+
+test('page has headline', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByRole('banner')).toHaveText('resumarkdown');
+});
+
+test('nav items work', async ({ page }) => {
+  await page.goto('/');
+
+  for (const tab of await page.getByRole('tab').all()) {
+    await tab.click();
+    await expect(page.getByTestId(`${await tab.textContent()}-pane`)).toBeVisible();
+  }
+});
+
+test('preview accepts content', async ({ page }) => {
+  await page.goto('/');
+  await page.getByText('content').click();
+  await page.getByRole('textbox').fill('# résumé');
+
+  const previewFrame = page.getByTitle('résumé preview').contentFrame();
+  await expect(previewFrame.getByRole('heading')).toHaveText('résumé');
+});
+
+test('preview accepts styles', async ({ page }) => {
+  await page.goto('/');
+  await page.getByText('content').click();
+  await page.getByRole('textbox').fill('# blah');
+  await page.getByText('style', { exact: true }).click();
+  await page.getByRole('textbox').fill('h1 { color: red; }');
+
+  const previewFrame = page.getByTitle('résumé preview').contentFrame();
+  await expect(previewFrame.getByRole('heading')).toHaveCSS('color', 'rgb(255, 0, 0)');
+});

tests/mobile.test.ts

@@ -0,0 +1,44 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public License,
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can
+ * obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { expect, test } from '@playwright/test';
+
+import UserAgent from 'user-agents';
+
+test.use({
+  viewport: { height: 2556, width: 1179 },
+  userAgent: new UserAgent({ deviceCategory: 'mobile' }).toString(),
+});
+
+test('mobile page has nav tree hidden by default', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByRole('navigation').getByRole('tablist')).toBeHidden();
+});
+
+test('mobile page has nav toggle', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByRole('navigation').getByRole('button')).toBeVisible();
+});
+
+test('nav toggle works', async ({ page }) => {
+  await page.goto('/');
+  await page.getByText('show navigation').click();
+  await expect(page.getByRole('navigation').getByRole('tablist')).toBeVisible();
+  await page.getByText('hide navigation').click();
+  await expect(page.getByRole('navigation').getByRole('tablist')).toBeHidden();
+});
+
+test('mobile page has single-column layout', async ({ page }) => {
+  await page.goto('/');
+  await expect(page.getByTestId('content-pane')).toBeVisible();
+  await expect(page.getByTestId('preview-pane')).toBeHidden();
+});
+
+test('mobile page has preview nav item', async ({ page }) => {
+  await page.goto('/');
+  await page.getByText('show navigation').click();
+  await expect(page.getByRole('tab').filter({ hasText: 'preview' })).toBeVisible();
+});

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://kit.svelte.dev/docs/configuration#alias
+  // except $lib which is handled by https://kit.svelte.dev/docs/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 +1,15 @@
+/*                                                                              
+ * This Source Code Form is subject to the terms of the Mozilla Public License, 
+ * v. 2.0. If a copy of the MPL was not distributed with this file, You can     
+ * obtain one at https://mozilla.org/MPL/2.0/.                                  
+ */
+
+import { sveltekit } from '@sveltejs/kit/vite';
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  plugins: [sveltekit()],
+  test: {
+    include: ['src/**/*.{test,spec}.{js,ts}'],
+  },
+});