finished the menu and started implementing file IO

src/routes/(editor)/index.css

@@ -0,0 +1,8 @@
+section.index {
+    display: grid;
+    grid: 100% / 20% 1fr;
+
+    & > aside {
+        overflow: clip auto;
+    }
+}

src/routes/(editor)/index.tsx

@@ -1,10 +1,102 @@
+import { Component, createEffect, createMemo, createResource, createSignal, For, onMount, Show } from "solid-js";
+import { useFiles } from "~/features/file";
 import { createCommand, Menu, Modifier } from "~/features/menu";
+import { AiFillFile } from "solid-icons/ai";
+import "./index.css";
+
+interface FileEntry {
+  name: string;
+  kind: 'file';
+  meta: File;
+}
+
+interface FolderEntry {
+  name: string;
+  kind: 'folder';
+  entries: Entry[];
+}
+
+type Entry = FileEntry|FolderEntry;
+
+async function* walk(directory: FileSystemDirectoryHandle, filters: RegExp[] = [], depth = 0): AsyncGenerator<Entry, void, never> {
+  if(depth === 5) {
+    return;
+  }
+
+  for await (const handle of directory.values()) {
+
+    if(filters.some(f => f.test(handle.name))){
+      continue;
+    }
+
+    if(handle.kind === 'file') {
+      yield { name: handle.name, kind: 'file', meta: await handle.getFile() };
+    }
+    else {
+      yield { name: handle.name, kind: 'folder', entries: await Array.fromAsync(walk(handle, filters, depth + 1)) };
+    }
+  }
+}
 
 export default function Index() {
+  const files = useFiles();
+  const [ tree, setTree ] = createSignal<FolderEntry>();
+  const [ content, setContent ] = createSignal<string>('');
+  const [ showHiddenFiles, setShowHiddenFiles ] = createSignal<boolean>(false);
+  const filters = createMemo<RegExp[]>(() => showHiddenFiles() ? [/^node_modules$/] : [ /^node_modules$/, /^\..+$/ ]);
+  const [ root, { mutate, refetch } ] = createResource(() => files.get('root'));
+
+  // Since the files are stored in indexedDb we need to refetch on the client in order to populate on page load
+  onMount(() => {
+    refetch();
+  });
+
+  createEffect(async () => {
+    const directory = root();
+
+    if(root.state ==='ready' && directory?.kind === 'directory'){
+      const entries = await Array.fromAsync(walk(directory, filters()));
+
+      setTree({ name: '', kind: 'folder', entries });
+    }
+  });
+
+  const open = async (file: File) => {
+    const text = await file.text();
+
+    console.log({ file, text });
+
+    return setContent(text);
+  };
+
   const commands = {
-    open: createCommand(() => {
-      console.log('Open a file');
+    open: createCommand(async () => {
+      const [fileHandle] = await window.showOpenFilePicker({
+        types: [
+          {
+            description: "JSON File(s)",
+            accept: {
+              "application/json": [ ".json", ".jsonp", ".jsonc" ],
+            },
+          }
+        ],
+        excludeAcceptAllOption: true,
+        multiple: true,
+      });
+      const file = await fileHandle.getFile();
+      const text = await file.text();
+
+      console.log(fileHandle, file, text);
     }, { key: 'o', modifier: Modifier.Control}),
+    openFolder: createCommand(async () => {
+      const directory = await window.showDirectoryPicker({ mode: 'readwrite' });
+      const entries = await Array.fromAsync(walk(directory, filters()));
+
+      files.set('root', directory);
+      mutate(directory);
+
+      setTree({ name: '', kind: 'folder', entries });
+    }),
     save: createCommand(() => {
       console.log('save');
     }, { key: 's', modifier: Modifier.Control }),
@@ -16,12 +108,41 @@ export default function Index() {
     view: createCommand(() => {}),
   } as const;
 
+  const Tree: Component<{ entries: Entry[] }> = (props) => {
+    return <ul style="display: flex; flex-direction: column; list-style: none;">
+      <For each={props.entries}>{
+        (entry, index) => <li style={`order: ${(entry.kind === 'file' ? 200 : 100) + index()}`}>
+          <Show when={entry.kind === 'folder' ? entry : undefined}>{
+            folder => <Folder folder={folder()} />
+          }</Show>
+      
+          <Show when={entry.kind === 'file' ? entry : undefined}>{
+            file => <span on:pointerdown={() => {
+              console.log(`lets open '${file().name}'`);
+  
+              open(file().meta);
+            }}><AiFillFile />{file().name}</span>
+          }</Show>
+        </li>
+      }</For>
+    </ul>
+  }
+  
+  const Folder: Component<{ folder: FolderEntry, open?: true }> = (props) => {
+    return <details open={props.open ?? false}>
+      <summary>{props.folder.name}</summary>
+      <Tree entries={props.folder.entries} />
+    </details>;
+  };
+
   return (
     <>
       <Menu.Root>
         <Menu.Item label="file">
           <Menu.Item label="open" command={commands.open} />
 
+          <Menu.Item label="open folder" command={commands.openFolder} />
+
           <Menu.Item label="save" command={commands.save} />
 
           <Menu.Item label="save all" command={commands.saveAll} />
@@ -33,6 +154,19 @@ export default function Index() {
 
         <Menu.Item label="view" command={commands.view} />
       </Menu.Root>
+
+      <section class="index">
+        <aside>
+          <label><input type="checkbox" on:input={() => setShowHiddenFiles(v => !v)} />Show hidden files</label>
+          <Show when={tree()}>{
+            tree => <Tree entries={tree().entries} />
+          }</Show>
+        </aside>
+
+        <section>
+          <pre>{content()}</pre>
+        </section>
+      </section>
     </>
   );
 }