13 files changed, 335 insertions, 145 deletions
diff --git a/client/src/App.css b/client/src/App.css
deleted file mode 100644
index b9d355d..0000000
--- a/client/src/App.css
+++ /dev/null
@@ -1,42 +0,0 @@
-#root {
-  max-width: 1280px;
-  margin: 0 auto;
-  padding: 2rem;
-  text-align: center;
-}
-
-.logo {
-  height: 6em;
-  padding: 1.5em;
-  will-change: filter;
-  transition: filter 300ms;
-}
-.logo:hover {
-  filter: drop-shadow(0 0 2em #646cffaa);
-}
-.logo.react:hover {
-  filter: drop-shadow(0 0 2em #61dafbaa);
-}
-
-@keyframes logo-spin {
-  from {
-    transform: rotate(0deg);
-  }
-  to {
-    transform: rotate(360deg);
-  }
-}
-
-@media (prefers-reduced-motion: no-preference) {
-  a:nth-of-type(2) .logo {
-    animation: logo-spin infinite 20s linear;
-  }
-}
-
-.card {
-  padding: 2em;
-}
-
-.read-the-docs {
-  color: #888;
-}
diff --git a/client/src/App.jsx b/client/src/App.jsx
deleted file mode 100644
index f67355a..0000000
--- a/client/src/App.jsx
+++ /dev/null
@@ -1,35 +0,0 @@
-import { useState } from 'react'
-import reactLogo from './assets/react.svg'
-import viteLogo from '/vite.svg'
-import './App.css'
-
-function App() {
-  const [count, setCount] = useState(0)
-
-  return (
-    <>
-      <div>
-        <a href="https://vite.dev" target="_blank">
-          <img src={viteLogo} className="logo" alt="Vite logo" />
-        </a>
-        <a href="https://react.dev" target="_blank">
-          <img src={reactLogo} className="logo react" alt="React logo" />
-        </a>
-      </div>
-      <h1>Vite + React</h1>
-      <div className="card">
-        <button onClick={() => setCount((count) => count + 1)}>
-          count is {count}
-        </button>
-        <p>
-          Edit <code>src/App.jsx</code> and save to test HMR
-        </p>
-      </div>
-      <p className="read-the-docs">
-        Click on the Vite and React logos to learn more
-      </p>
-    </>
-  )
-}
-
-export default App
diff --git a/client/src/assets/react.svg b/client/src/assets/react.svg
deleted file mode 100644
index 6c87de9..0000000
--- a/client/src/assets/react.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="35.93" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 228"><path fill="#00D8FF" d="M210.483 73.824a171.49 171.49 0 0 0-8.24-2.597c.465-1.9.893-3.777 1.273-5.621c6.238-30.281 2.16-54.676-11.769-62.708c-13.355-7.7-35.196.329-57.254 19.526a171.23 171.23 0 0 0-6.375 5.848a155.866 155.866 0 0 0-4.241-3.917C100.759 3.829 77.587-4.822 63.673 3.233C50.33 10.957 46.379 33.89 51.995 62.588a170.974 170.974 0 0 0 1.892 8.48c-3.28.932-6.445 1.924-9.474 2.98C17.309 83.498 0 98.307 0 113.668c0 15.865 18.582 31.778 46.812 41.427a145.52 145.52 0 0 0 6.921 2.165a167.467 167.467 0 0 0-2.01 9.138c-5.354 28.2-1.173 50.591 12.134 58.266c13.744 7.926 36.812-.22 59.273-19.855a145.567 145.567 0 0 0 5.342-4.923a168.064 168.064 0 0 0 6.92 6.314c21.758 18.722 43.246 26.282 56.54 18.586c13.731-7.949 18.194-32.003 12.4-61.268a145.016 145.016 0 0 0-1.535-6.842c1.62-.48 3.21-.974 4.76-1.488c29.348-9.723 48.443-25.443 48.443-41.52c0-15.417-17.868-30.326-45.517-39.844Zm-6.365 70.984c-1.4.463-2.836.91-4.3 1.345c-3.24-10.257-7.612-21.163-12.963-32.432c5.106-11 9.31-21.767 12.459-31.957c2.619.758 5.16 1.557 7.61 2.4c23.69 8.156 38.14 20.213 38.14 29.504c0 9.896-15.606 22.743-40.946 31.14Zm-10.514 20.834c2.562 12.94 2.927 24.64 1.23 33.787c-1.524 8.219-4.59 13.698-8.382 15.893c-8.067 4.67-25.32-1.4-43.927-17.412a156.726 156.726 0 0 1-6.437-5.87c7.214-7.889 14.423-17.06 21.459-27.246c12.376-1.098 24.068-2.894 34.671-5.345a134.17 134.17 0 0 1 1.386 6.193ZM87.276 214.515c-7.882 2.783-14.16 2.863-17.955.675c-8.075-4.657-11.432-22.636-6.853-46.752a156.923 156.923 0 0 1 1.869-8.499c10.486 2.32 22.093 3.988 34.498 4.994c7.084 9.967 14.501 19.128 21.976 27.15a134.668 134.668 0 0 1-4.877 4.492c-9.933 8.682-19.886 14.842-28.658 17.94ZM50.35 144.747c-12.483-4.267-22.792-9.812-29.858-15.863c-6.35-5.437-9.555-10.836-9.555-15.216c0-9.322 13.897-21.212 37.076-29.293c2.813-.98 5.757-1.905 8.812-2.773c3.204 10.42 7.406 21.315 12.477 32.332c-5.137 11.18-9.399 22.249-12.634 32.792a134.718 134.718 0 0 1-6.318-1.979Zm12.378-84.26c-4.811-24.587-1.616-43.134 6.425-47.789c8.564-4.958 27.502 2.111 47.463 19.835a144.318 144.318 0 0 1 3.841 3.545c-7.438 7.987-14.787 17.08-21.808 26.988c-12.04 1.116-23.565 2.908-34.161 5.309a160.342 160.342 0 0 1-1.76-7.887Zm110.427 27.268a347.8 347.8 0 0 0-7.785-12.803c8.168 1.033 15.994 2.404 23.343 4.08c-2.206 7.072-4.956 14.465-8.193 22.045a381.151 381.151 0 0 0-7.365-13.322Zm-45.032-43.861c5.044 5.465 10.096 11.566 15.065 18.186a322.04 322.04 0 0 0-30.257-.006c4.974-6.559 10.069-12.652 15.192-18.18ZM82.802 87.83a323.167 323.167 0 0 0-7.227 13.238c-3.184-7.553-5.909-14.98-8.134-22.152c7.304-1.634 15.093-2.97 23.209-3.984a321.524 321.524 0 0 0-7.848 12.897Zm8.081 65.352c-8.385-.936-16.291-2.203-23.593-3.793c2.26-7.3 5.045-14.885 8.298-22.6a321.187 321.187 0 0 0 7.257 13.246c2.594 4.48 5.28 8.868 8.038 13.147Zm37.542 31.03c-5.184-5.592-10.354-11.779-15.403-18.433c4.902.192 9.899.29 14.978.29c5.218 0 10.376-.117 15.453-.343c-4.985 6.774-10.018 12.97-15.028 18.486Zm52.198-57.817c3.422 7.8 6.306 15.345 8.596 22.52c-7.422 1.694-15.436 3.058-23.88 4.071a382.417 382.417 0 0 0 7.859-13.026a347.403 347.403 0 0 0 7.425-13.565Zm-16.898 8.101a358.557 358.557 0 0 1-12.281 19.815a329.4 329.4 0 0 1-23.444.823c-7.967 0-15.716-.248-23.178-.732a310.202 310.202 0 0 1-12.513-19.846h.001a307.41 307.41 0 0 1-10.923-20.627a310.278 310.278 0 0 1 10.89-20.637l-.001.001a307.318 307.318 0 0 1 12.413-19.761c7.613-.576 15.42-.876 23.31-.876H128c7.926 0 15.743.303 23.354.883a329.357 329.357 0 0 1 12.335 19.695a358.489 358.489 0 0 1 11.036 20.54a329.472 329.472 0 0 1-11 20.722Zm22.56-122.124c8.572 4.944 11.906 24.881 6.52 51.026c-.344 1.668-.73 3.367-1.15 5.09c-10.622-2.452-22.155-4.275-34.23-5.408c-7.034-10.017-14.323-19.124-21.64-27.008a160.789 160.789 0 0 1 5.888-5.4c18.9-16.447 36.564-22.941 44.612-18.3ZM128 90.808c12.625 0 22.86 10.235 22.86 22.86s-10.235 22.86-22.86 22.86s-22.86-10.235-22.86-22.86s10.235-22.86 22.86-22.86Z"></path></svg>
-\ No newline at end of file
diff --git a/client/src/components/entry.css b/client/src/components/entry.css
new file mode 100644
index 0000000..e76d6a9
--- /dev/null
+++ b/client/src/components/entry.css
@@ -0,0 +1,44 @@
+.entry {
+	display: flex;
+	width: 100%;
+	gap: 5px;
+
+	button {
+		display: 0;
+		background: none;
+		border: none;
+		cursor: pointer;
+		font-weight: bold;
+
+		opacity: 0;
+	}
+
+	.text {
+	white-space: pre-wrap;
+		border: 0;
+		width: 100%;
+		padding: 5px;
+	}
+	.text:focus {
+		border: 0;
+		outline: 0;
+
+		background-color: #f9f9f9;
+	}
+
+	.text:empty:focus::before {
+		content: "write something...";
+		opacity: .3;
+		font-style: italic;
+	}
+}
+
+.entry:hover {
+	button {
+		opacity: .3;
+	}
+
+	button:hover {
+		opacity: .5;
+	}
+}
diff --git a/client/src/components/entry.jsx b/client/src/components/entry.jsx
new file mode 100644
index 0000000..637a696
--- /dev/null
+++ b/client/src/components/entry.jsx
@@ -0,0 +1,76 @@
+import {createElement, useLayoutEffect, useRef, useState} from 'react';
+
+import './entry.css';
+
+function TextField({ item, onEnter, onSelect, onRemove, ref }) {
+	const onKeyDown = e => {
+		if (e.keyCode === 38) { // up
+			onSelect(-1);
+			e.preventDefault();
+			return;
+		} else if (e.keyCode === 40) { // down
+			onSelect(+1);
+			e.preventDefault();
+			return;
+		} else if (e.keyCode === 8 && e.target.innerText.length === 0) { // backspace
+			onRemove();
+			e.preventDefault();
+			return;
+		}
+
+		if (e.keyCode !== 13) {
+			return;
+		} else if (e.shiftKey) {
+			return;
+		}
+
+		e.preventDefault();
+
+		onEnter(e.ctrlKey ? 'todo' : 'plain');
+	};
+
+	useLayoutEffect(() => {
+		if (ref.current == null) {
+			return;
+		}
+
+		ref.current.innerText = item.text;
+	}, [item.text]);
+
+	return <div ref={ref} className='text' contentEditable="true" onKeyDown={onKeyDown} onClick={() => onSelect(0)}></div>;
+}
+
+function Plain({ item, onEnter, onSelect, onRemove, ref }) {
+	return <TextField item={item} onEnter={onEnter} onSelect={onSelect} onRemove={onRemove} ref={ref} />;
+}
+
+function Todo({ item, onEnter, onSelect, onRemove, ref }) {
+	return <>
+		<input type="checkbox" />
+		<TextField item={item} onEnter={onEnter} onSelect={onSelect} onRemove={onRemove} ref={ref} />
+	</>;
+}
+
+export default function Entry({ item, onEnter, onSelect, onRemove, isFocused }) {
+	const ref = useRef(null);
+	useLayoutEffect(() => {
+		if (isFocused && ref.current != null && document.activeElement !== ref.current) {
+			ref.current.focus();
+			document.execCommand('selectAll', false, null);
+			document.getSelection().collapseToEnd();
+		}
+	}, [isFocused]);
+
+	const child = createElement(item.type === 'plain' ? Plain : Todo, {
+		ref,
+		item,
+		onEnter,
+		onSelect,
+		onRemove: () => onRemove(true),
+	});
+
+	return <div className={`entry ${isFocused ? 'focus' : ''}`}>
+		<button onClick={() => onRemove(false)}>X</button>
+		{child}
+	</div>
+}
diff --git a/client/src/index.css b/client/src/index.css
index 6119ad9..5edd4fc 100644
--- a/client/src/index.css
+++ b/client/src/index.css
@@ -1,68 +1,8 @@
 :root {
-  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
-  line-height: 1.5;
-  font-weight: 400;
-
-  color-scheme: light dark;
-  color: rgba(255, 255, 255, 0.87);
-  background-color: #242424;
-
-  font-synthesis: none;
-  text-rendering: optimizeLegibility;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-a {
-  font-weight: 500;
-  color: #646cff;
-  text-decoration: inherit;
-}
-a:hover {
-  color: #535bf2;
+	font-family: sans-serif;
+	font-size: 1.1em;
 }
 
 body {
-  margin: 0;
-  display: flex;
-  place-items: center;
-  min-width: 320px;
-  min-height: 100vh;
-}
-
-h1 {
-  font-size: 3.2em;
-  line-height: 1.1;
-}
-
-button {
-  border-radius: 8px;
-  border: 1px solid transparent;
-  padding: 0.6em 1.2em;
-  font-size: 1em;
-  font-weight: 500;
-  font-family: inherit;
-  background-color: #1a1a1a;
-  cursor: pointer;
-  transition: border-color 0.25s;
-}
-button:hover {
-  border-color: #646cff;
-}
-button:focus,
-button:focus-visible {
-  outline: 4px auto -webkit-focus-ring-color;
-}
-
-@media (prefers-color-scheme: light) {
-  :root {
-    color: #213547;
-    background-color: #ffffff;
-  }
-  a:hover {
-    color: #747bff;
-  }
-  button {
-    background-color: #f9f9f9;
-  }
+	padding: 0;
 }
diff --git a/client/src/main.jsx b/client/src/main.jsx
index b9a1a6d..6a23f95 100644
--- a/client/src/main.jsx
+++ b/client/src/main.jsx
@@ -1,10 +1,16 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
 import './index.css'
-import App from './App.jsx'
+import { BrowserRouter, Route, Routes } from 'react-router';
+
+import App from './routes/app/app';
 
 createRoot(document.getElementById('root')).render(
-  <StrictMode>
-    <App />
-  </StrictMode>,
+	<StrictMode>
+		<BrowserRouter>
+			<Routes>
+				<Route path="/file/*" element={<App />} />
+			</Routes>
+		</BrowserRouter>
+	</StrictMode>,
 )
diff --git a/client/src/routes/app/app.css b/client/src/routes/app/app.css
new file mode 100644
index 0000000..bccae8f
--- /dev/null
+++ b/client/src/routes/app/app.css
@@ -0,0 +1,9 @@
+.app {
+	display: flex;
+
+	position: fixed;
+	top: 0;
+	left: 0;
+	right: 0;
+	bottom: 0;
+}
diff --git a/client/src/routes/app/app.jsx b/client/src/routes/app/app.jsx
new file mode 100644
index 0000000..67dcd91
--- /dev/null
+++ b/client/src/routes/app/app.jsx
@@ -0,0 +1,98 @@
+import {useEffect, useRef, useState} from 'react';
+import { useLocation, useParams } from "react-router";
+
+import './app.css';
+
+import Sidebar from './components/sidebar/sidebar';
+import Content from './components/content/content';
+
+const files = [
+	{
+		id: '1',
+		title: 'kaas',
+		items: [
+			{ type: 'plain', text: 'kaas 1' },
+			{ type: 'plain', text: 'kaas 2' },
+			{ type: 'plain', text: 'kaas 3' },
+			{ type: 'plain', text: 'kaas 4' },
+			{ type: 'plain', text: 'kaas 5' },
+		],
+	},
+	{
+		id: '2',
+		title: 'ham',
+		items: [
+			{ type: 'plain', text: 'ham 1' },
+			{ type: 'plain', text: 'ham 2' },
+			{ type: 'plain', text: 'ham 3' },
+			{ type: 'plain', text: 'ham 4' },
+			{ type: 'plain', text: 'ham 5' },
+		],
+	},
+	{
+		id: '3',
+		title: 'vis',
+		items: [
+			{ type: 'plain', text: 'vis 1' },
+			{ type: 'plain', text: 'vis 2' },
+			{ type: 'plain', text: 'vis 3' },
+			{ type: 'plain', text: 'vis 4' },
+			{ type: 'plain', text: 'vis 5' },
+		],
+	},
+	{
+		id: '4',
+		title: 'empty',
+		items: [
+			{ type: 'plain', text: '' },
+		],
+
+		children: [{
+			id: '4/5',
+			title: 'empty 2',
+			items: [
+				{ type: 'plain', text: '' },
+			],
+		}],
+	},
+]
+
+function splitOnce(str, sep) {
+	const idx = str.indexOf(sep);
+	if (idx === -1) return [str, ''];
+
+	return [ str.slice(0, idx), str.slice(idx+1) ];
+}
+
+export default function App() {
+	const e = useLocation();
+	const fullPath = e.pathname.replace('/file/', '');
+	let path = fullPath;
+
+	let cur = { children: files };
+	let builtKey = '';
+	while (path != '') {
+		let key;
+		[key, path] = splitOnce(path, '/');
+		builtKey += `/${key}`;
+
+		console.log(key, path, cur);
+		cur = (cur.children ?? []).find(p => p.id === builtKey.slice(1));
+	}
+
+	const file = cur;
+	const [title, setTitle] = useState(() => file.title);
+	const [items, setItems] = useState(() => file.items);
+
+	useEffect(() => {
+		setTitle(() => file.title);
+		setItems(() => file.items);
+
+		document.title = '🧀🥜 ' + file.title;
+	}, [fullPath]);
+
+	return <div className='app'>
+		<Sidebar files={files} />
+		<Content title={title} items={items} setTitle={setTitle} setItems={setItems} />
+	</div>
+}
diff --git a/client/src/routes/app/components/content/content.css b/client/src/routes/app/components/content/content.css
new file mode 100644
index 0000000..196fb96
--- /dev/null
+++ b/client/src/routes/app/components/content/content.css
@@ -0,0 +1,20 @@
+.content {
+	display: flex;
+	flex-direction: column;
+
+	flex-grow: 1;
+	padding: 10px;
+
+	overflow-y: scroll;
+
+	.title {
+		border: 0;
+		padding: 10px;
+		margin-left: 15px;
+		margin-bottom: 50px;
+	}
+	.title:focus {
+		border: 0;
+		outline: 0;
+	}
+}
diff --git a/client/src/routes/app/components/content/content.jsx b/client/src/routes/app/components/content/content.jsx
new file mode 100644
index 0000000..42ecb8a
--- /dev/null
+++ b/client/src/routes/app/components/content/content.jsx
@@ -0,0 +1,32 @@
+import {useLayoutEffect, useRef, useState} from 'react';
+
+import './content.css';
+
+import Entry from '../../../../components/entry';
+
+export default function Content({ title, setTitle, items, setItems }) {
+	const [focused, setFocused] = useState(null);
+
+	const children = items.map((item, i) => {
+		return <Entry
+			item={item}
+			isFocused={i === focused}
+			onSelect={delta => setFocused(i + delta)}
+			onRemove={refocus => setItems(a => {
+				if (refocus) {
+					setFocused(i-1);
+				}
+				return [...a.slice(0, i), ...a.slice(i + 1)]
+			})}
+			onEnter={type => setItems(a => {
+				setFocused(i+1);
+				return a.toSpliced(i+1, 0, { type, text: '' });
+			})}
+		/>;
+	});
+
+	return <div className="content">
+		<h1 className='title' contentEditable="true">{title}</h1>
+		{children}
+	</div>;
+}
diff --git a/client/src/routes/app/components/sidebar/sidebar.css b/client/src/routes/app/components/sidebar/sidebar.css
new file mode 100644
index 0000000..515117a
--- /dev/null
+++ b/client/src/routes/app/components/sidebar/sidebar.css
@@ -0,0 +1,24 @@
+.sidebar {
+	width: 200px;
+	background-color: #f2f2f2;
+
+	flex-shrink: 0;
+
+	h1 {
+		margin-left: 10px;
+		margin-top: 10px;
+	}
+
+	.file {
+		display: block;
+
+		color: black;
+		text-decoration: none;
+
+		padding: 5px;
+	}
+
+	.file:hover {
+		background-color: #e4e4e4;
+	}
+}
diff --git a/client/src/routes/app/components/sidebar/sidebar.jsx b/client/src/routes/app/components/sidebar/sidebar.jsx
new file mode 100644
index 0000000..1ce7d2b
--- /dev/null
+++ b/client/src/routes/app/components/sidebar/sidebar.jsx
@@ -0,0 +1,19 @@
+import { useNavigate } from "react-router";
+import { RichTreeView } from '@mui/x-tree-view/RichTreeView';
+
+import './sidebar.css';
+
+
+export default function Sidebar({ files }) {
+	const navigate = useNavigate();
+
+	const onSelect = (_, i) => {
+		navigate(`/file/${i}`);
+	};
+
+	return <div className="sidebar">
+		<h1>🧀🥜</h1>
+		<hr/>
+		<RichTreeView items={files} onItemClick={onSelect} getItemLabel={p => p.title} />
+	</div>;
+}