refactoring stuff to make sure the right responsibility is fullfilled in the right place

src/components/tabs.tsx

@@ -19,19 +19,23 @@ const useTabs = () => {
 
 export const Tabs: ParentComponent<{ active?: Setter<string | undefined> }> = (props) => {
     const [active, setActive] = createSignal<string | undefined>(undefined);
-    const [tabs, setTabs] = createSignal<{ id: string, label: string }[]>([]);
+    const [tabs, setTabs] = createSignal<Map<string, string>>(new Map());
 
     createEffect(() => {
         props.active?.(active());
     });
 
     createEffect(() => {
-        setActive(tabs().at(-1)?.id);
+        setActive(tabs().keys().toArray().at(-1));
     });
 
     const ctx = {
         register(id: string, label: string) {
-            setTabs(tabs => [...tabs, { id, label }]);
+            setTabs(tabs => {
+                tabs.set(id, label);
+
+                return new Map(tabs);
+            });
 
             return createMemo(() => active() === id);
         },
@@ -40,8 +44,8 @@ export const Tabs: ParentComponent<{ active?: Setter<string | undefined> }> = (p
     return <TabsContext.Provider value={ctx}>
         <div class={css.tabs}>
             <header>
-                <For each={tabs()}>{
-                    tab => <button onpointerdown={() => setActive(tab.id)} classList={{ [css.active]: active() === tab.id }}>{tab.label}</button>
+                <For each={tabs().entries().toArray()}>{
+                    ([id, label]) => <button onpointerdown={() => setActive(id)} classList={{ [css.active]: active() === id }}>{label}</button>
                 }</For>
             </header>
 

src/features/file/index.tsx

@@ -1,38 +1,68 @@
 import Dexie, { EntityTable } from "dexie";
-import { createContext, ParentComponent, useContext } from "solid-js";
+import { Accessor, createContext, createMemo, onMount, ParentComponent, useContext } from "solid-js";
+import { createStore } from "solid-js/store";
 import { isServer } from "solid-js/web";
 import * as json from './parser/json';
 
 interface FileEntity {
-    name: string;
+    key: string;
     handle: FileSystemDirectoryHandle;
 }
 
 type Store = Dexie & {
-    files: EntityTable<FileEntity, 'name'>;
+    files: EntityTable<FileEntity, 'key'>;
 };
 
-interface FilesContextType {
-    set(name: string, handle: FileSystemDirectoryHandle): Promise<void>;
-    get(name: string): Promise<FileSystemDirectoryHandle | undefined>;
+interface InternalFilesContextType {
+    onChange(hook: (key: string, handle: FileSystemDirectoryHandle) => any): void;
+    set(key: string, handle: FileSystemDirectoryHandle): Promise<void>;
+    get(key: string): Promise<FileSystemDirectoryHandle | undefined>;
+    remove(key: string): Promise<void>;
+    keys(): Promise<string[]>;
+    entries(): Promise<FileEntity[]>;
     list(): Promise<FileSystemDirectoryHandle[]>;
 }
 
+interface FilesContextType {
+    readonly files: Accessor<FileEntity[]>,
+
+    get(key: string): Accessor<FileSystemDirectoryHandle | undefined>
+    set(key: string, handle: FileSystemDirectoryHandle): Promise<void>;
+    remove(key: string): Promise<void>;
+}
+
 const FilesContext = createContext<FilesContextType>();
 
-const clientContext = (): FilesContextType => {
+const clientContext = (): InternalFilesContextType => {
     const db = new Dexie('Files') as Store;
 
     db.version(1).stores({
-        files: 'name, handle'
+        files: 'key, handle'
     });
 
     return {
-        async set(name: string, handle: FileSystemDirectoryHandle) {
-            await db.files.put({ name, handle });
+        onChange(hook: (key: string, handle: FileSystemDirectoryHandle) => any) {
+            const callHook = (key: string, handle: FileSystemDirectoryHandle) => setTimeout(() => hook(key, handle), 1);
+
+            db.files.hook('creating', (_: string, { key, handle }: FileEntity) => { callHook(key, handle); });
+            db.files.hook('deleting', (_: string, { key, handle }: FileEntity) => callHook(key, handle));
+            db.files.hook('updating', (_1: Object, _2: string, { key, handle }: FileEntity) => callHook(key, handle));
         },
-        async get(name: string) {
-            return (await db.files.get(name))?.handle;
+
+        async set(key: string, handle: FileSystemDirectoryHandle) {
+            await db.files.put({ key, handle });
+        },
+        async get(key: string) {
+            return (await db.files.get(key))?.handle;
+        },
+        async remove(key: string) {
+            return (await db.files.delete(key));
+        },
+        async keys() {
+            return (await db.files.toArray()).map(f => f.key);
+        },
+        async entries() {
+            return await db.files.toArray();
         },
         async list() {
             const files = await db.files.toArray();
@@ -42,25 +72,69 @@ const clientContext = (): FilesContextType => {
     }
 };
 
-const serverContext = (): FilesContextType => ({
-    set() {
+const serverContext = (): InternalFilesContextType => ({
+    onChange(hook: (key: string, handle: FileSystemDirectoryHandle) => any) {
+
+    },
+    set(key: string, handle: FileSystemDirectoryHandle) {
         return Promise.resolve();
     },
-    get(name: string) {
+    get(key: string) {
         return Promise.resolve(undefined);
     },
+    remove(key: string) {
+        return Promise.resolve(undefined);
+    },
+    keys() {
+        return Promise.resolve([]);
+    },
+    entries() {
+        return Promise.resolve([]);
+    },
     list() {
-        return Promise.resolve<FileSystemDirectoryHandle[]>([]);
+        return Promise.resolve([]);
     },
 });
 
 export const FilesProvider: ParentComponent = (props) => {
-    const ctx = isServer ? serverContext() : clientContext();
+    const internal = isServer ? serverContext() : clientContext();
 
-    return <FilesContext.Provider value={ctx}>{props.children}</FilesContext.Provider>;
+    const [state, setState] = createStore<{ files: FileEntity[] }>({ files: [] });
+
+    const updateFilesInState = async () => {
+        const entities = await internal.entries();
+
+        setState('files', entities);
+    };
+
+    internal.onChange((key: string, handle: FileSystemDirectoryHandle) => {
+        updateFilesInState();
+    });
+
+    onMount(() => {
+        updateFilesInState();
+    });
+
+    const context: FilesContextType = {
+        files: createMemo(() => state.files),
+
+        get(key: string): Accessor<FileSystemDirectoryHandle | undefined> {
+            return createMemo(() => state.files.find(entity => entity.key === key)?.handle);
+        },
+
+        async set(key: string, handle: FileSystemDirectoryHandle) {
+            await internal.set(key, handle);
+        },
+
+        async remove(key: string) {
+            await internal.remove(key);
+        },
+    };
+
+    return <FilesContext.Provider value={context}>{props.children}</FilesContext.Provider>;
 }
 
-export const useFiles = () => useContext(FilesContext);
+export const useFiles = () => useContext(FilesContext)!;
 
 export const load = (file: File): Promise<Map<string, string> | undefined> => {
     switch (file.type) {

src/routes/(editor)/edit.tsx

@@ -62,18 +62,14 @@ interface ContentTabType {
 
 export default function Edit(props: ParentProps) {
     const filesContext = useFiles();
-    const [root, { refetch: getRoot, mutate: updateRoot }] = createResource(() => filesContext?.get('__root__'));
-    const [tabs, { refetch: getTabs }] = createResource<ContentTabType[]>(async () => {
-        const handles = (await filesContext?.list()) ?? [];
 
-        return await Promise.all(handles.map(handle => {
+    const root = filesContext.get('__root__');
+    const tabs = createMemo(() => filesContext.files().map(({ key, handle }) => {
         const [api, setApi] = createSignal<GridApi>();
         const [entries, setEntries] = createSignal<Entries>(new Map());
-            const files = handle.entries()
 
         return ({ handle, api, setApi, entries, setEntries });
     }));
-    }, { initialValue: [], ssrLoadFrom: 'initial' });
     const [active, setActive] = createSignal<string>();
     const [contents, setContents] = createSignal<Map<string, Map<string, string>>>(new Map());
     const [tree, setFiles] = createSignal<FolderEntry>(emptyFolder);
@@ -152,22 +148,16 @@ export default function Edit(props: ParentProps) {
         }).toArray();
     });
 
-    // Since the files are stored in indexedDb we need to refetch on the client in order to populate on page load
-    onMount(() => {
-        getRoot();
-        getTabs();
-    });
-
     createEffect(() => {
         const directory = root();
 
-        if (root.state === 'ready' && directory?.kind === 'directory') {
+        if (directory === undefined) {
+            return;
+        }
 
         (async () => {
             const contents = await Array.fromAsync(walk(directory));
 
-                console.log(contents);
-
             setContents(new Map(contents.map(({ id, entries }) => [id, entries] as const)))
 
             const template = contents.map(({ lang, handle }) => [lang, { handle, value: '' }]);
@@ -189,82 +179,25 @@ export default function Edit(props: ParentProps) {
             setFiles({ name: directory.name, id: '', kind: 'folder', handle: directory, entries: await Array.fromAsync(fileTreeWalk(directory)) });
             setEntries(merged);
         })();
-        }
     });
 
     const commands = {
-        open: createCommand('open', 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('open folder', async () => {
+        open: createCommand('open folder', async () => {
             const directory = await window.showDirectoryPicker({ mode: 'readwrite' });
 
             filesContext.set('__root__', directory);
-            updateRoot(directory);
+        }, { key: 'o', modifier: Modifier.Control }),
+        close: createCommand('close folder', async () => {
+            filesContext.remove('__root__');
         }),
         save: createCommand('save', async () => {
-            const results = await Promise.allSettled(mutatedData().map(async ([handle, data]) => {
+            await Promise.allSettled(mutatedData().map(async ([handle, data]) => {
                 const stream = await handle.createWritable({ keepExistingData: false });
 
                 stream.write(JSON.stringify(data, null, 4));
                 stream.write('\n');
                 stream.close();
             }));
-
-            console.log(results);
-
-            // const fileMutations = await Promise.all(mutations.map(async (mutation) => {
-            //     const [k, lang] = splitAt(mutation.key, mutation.key.lastIndexOf('.'));
-            //     const entry = _entries.get(k);
-            //     const localEntry = entry?.[lang];
-
-            //     if (!localEntry) {
-            //         throw new Error('invalid edge case???');
-            //     }
-
-            //     const createNewFile = async () => {
-            //         const [, alternativeLocalEntry] = Object.entries(entry).find(([l, e]) => l !== lang && e.id !== undefined) ?? [];
-            //         const { directory, path } = alternativeLocalEntry ? findFile(tree(), alternativeLocalEntry.id) ?? {} : {};
-
-            //         const handle = await window.showSaveFilePicker({
-            //             suggestedName: `${lang}.json`,
-            //             startIn: directory,
-            //             excludeAcceptAllOption: true,
-            //             types: [
-            //                 { accept: { 'application/json': ['.json'] }, description: 'JSON' },
-            //             ]
-            //         });
-
-            //         // TODO :: patch the tree with this new entry
-            //         // console.log(localEntry, tree());
-
-            //         return { handle, path };
-            //     };
-
-            //     const { handle, path } = findFile(tree(), localEntry.id) ?? (mutation.kind !== MutarionKind.Delete ? await createNewFile() : {});
-            //     const id = await handle?.getUniqueId();
-            //     const key = path ? k.slice(path.join('.').length + 1) : k;
-            //     const value = rows[k][lang];
-
-            //     return { action: mutation.kind, key, id, value, handle };
-            // }));
-
-            // console.log(rows, entries(), Object.groupBy(fileMutations, m => m.id ?? 'undefined'))
         }, { key: 's', modifier: Modifier.Control }),
         saveAs: createCommand('save as', (handle?: FileSystemFileHandle) => {
             console.log('save as ...', handle);
@@ -301,7 +234,9 @@ export default function Edit(props: ParentProps) {
                 <Menu.Item label="file">
                     <Menu.Item command={commands.open} />
 
-                    <Menu.Item command={commands.openFolder} />
+                    <Menu.Item command={commands.close} />
+
+                    <Menu.Separator />
 
                     <Menu.Item command={commands.save} />
                 </Menu.Item>
@@ -326,12 +261,11 @@ export default function Edit(props: ParentProps) {
             </Menu.Root>
 
             <Sidebar as="aside" label={tree().name} class={css.sidebar}>
-                <Show when={!root.loading && root()} fallback={<button onpointerdown={() => commands.openFolder()}>open a folder</button>}>
+                <Show when={root()} fallback={<button onpointerdown={() => commands.open()}>open a folder</button>}>
                     <Tree entries={tree().entries}>{[
                         folder => {
                             return <span onDblClick={() => {
                                 filesContext?.set(folder().name, folder().handle);
-                                getTabs();
                             }}>{folder().name}</span>;
                         },
                         file => {
@@ -340,7 +274,6 @@ export default function Edit(props: ParentProps) {
                             return <Context.Handle classList={{ [css.mutated]: mutated() }} onDblClick={() => {
                                 const folder = file().directory;
                                 filesContext?.set(folder.name, folder);
-                                getTabs();
                             }}>{file().name}</Context.Handle>;
                         },
                     ] as const}</Tree>
@@ -349,7 +282,7 @@ export default function Edit(props: ParentProps) {
 
             <Tabs active={setActive}>
                 <For each={tabs()}>{
-                    ({ handle, setApi, setEntries }) => <Tab id={handle.name} label={handle.name}><Content directory={handle} api={setApi} entries={setEntries} /></Tab>
+                    ({ handle, setApi, setEntries }) => <Tab id={handle.name} label={handle.name} ><Content directory={handle} api={setApi} entries={setEntries} /></Tab>
                 }</For>
             </Tabs>
         </Context.Root>