Integrate backend into storywriter

backend/src/auth.ts

@@ -2,6 +2,16 @@ import { db } from "./db.ts";
 
 export const TOKEN_TTL_DAYS = parseInt(process.env.TOKEN_TTL_DAYS ?? "30");
 
+export const issueToken = async (userId: number): Promise<string> => {
+    const token = crypto.randomUUID();
+    const expiresAt = new Date(Date.now() + TOKEN_TTL_DAYS * 86_400_000)
+        .toISOString()
+        .replace("T", " ")
+        .slice(0, 19);
+    await db`INSERT INTO auth_tokens (user_id, token, expires_at) VALUES (${userId}, ${token}, ${expiresAt})`;
+    return token;
+};
+
 export const validateToken = async (token: string): Promise<number | null> => {
     const [row] = await db`
         SELECT user_id FROM auth_tokens

backend/src/login.ts

@@ -0,0 +1,18 @@
+import { db } from "./db.ts";
+import { issueToken } from "./auth.ts";
+
+const [username, password] = process.argv.slice(2);
+
+if (!username || !password) {
+    console.error("Usage: bun run login <username> <password>");
+    process.exit(1);
+}
+
+const [user] = await db`SELECT id, password_hash FROM users WHERE username = ${username}`;
+
+if (!user || !await Bun.password.verify(password, user.password_hash as string)) {
+    console.error("Invalid credentials");
+    process.exit(1);
+}
+
+console.log(await issueToken(user.id as number));

backend/src/routes/login.ts

@@ -1,5 +1,5 @@
 import { db } from "../db.ts";
-import { TOKEN_TTL_DAYS } from "../auth.ts";
+import { issueToken } from "../auth.ts";
 
 export const handleLogin = async (req: Request): Promise<Response> => {
     if (req.method !== "POST") {
@@ -30,16 +30,6 @@ export const handleLogin = async (req: Request): Promise<Response> => {
         return Response.json({ error: "Invalid credentials" }, { status: 401 });
     }
 
-    const token = crypto.randomUUID();
+    const token = await issueToken(user.id as number);
-    const expiresAt = new Date(Date.now() + TOKEN_TTL_DAYS * 86_400_000)
-        .toISOString()
-        .replace("T", " ")
-        .slice(0, 19);
-
-    await db`
-        INSERT INTO auth_tokens (user_id, token, expires_at)
-        VALUES (${user.id}, ${token}, ${expiresAt})
-    `;
-
     return Response.json({ token });
 };

build/assets/global.css

@@ -7,6 +7,8 @@
     --border: #3e3d32;
     --accent: #f92672;
     --accent-alt: #a6e22e;
+    --danger: #c4265e;
+    --danger-alt: #f92672;
     --text: #f8f8f2;
     --text-muted: #75715e;
     --text-dim: #cfcfc2;

package.json

@@ -10,6 +10,7 @@
     "backend": "bun backend/src/index.ts",
     "backend:dev": "bun --hot backend/src/index.ts",
     "register": "bun backend/src/register.ts",
+    "login": "bun backend/src/login.ts",
     "docker:build": "docker build -t git.pabloader.ru/pabloid/tsgames:latest backend/",
     "docker:push": "docker push git.pabloader.ru/pabloid/tsgames:latest",
     "docker:update": "docker service update --force --image git.pabloader.ru/pabloid/tsgames:latest tsgames_backend",

src/common/assets/login.module.css

@@ -0,0 +1,4 @@
+.error {
+    color: var(--danger);
+    font-size: 13px;
+}

src/common/assets/ui.module.css

@@ -58,6 +58,7 @@ button {
     background: transparent;
     transition: all var(--transition);
     color: var(--text);
+    width: fit-content;
 }
 
 .buttonPrimary {

src/common/components/LoginForm.tsx

@@ -0,0 +1,65 @@
+import { useState } from "preact/hooks";
+import clsx from "clsx";
+
+import { login } from "@common/storage";
+import { useInputState } from "@common/hooks/useInputState";
+import ui from "../assets/ui.module.css";
+import styles from "../assets/login.module.css";
+
+interface IProps {
+    onLogin?: () => void;
+    class?: string;
+    className?: string;
+}
+
+export const LoginForm = ({ onLogin, ['class']: cls, className }: IProps) => {
+    const [username, handleUsername] = useInputState();
+    const [password, handlePassword] = useInputState();
+    const [error, setError] = useState<string | null>(null);
+    const [loading, setLoading] = useState(false);
+
+    const handleSubmit = async (e: Event) => {
+        e.preventDefault();
+        setError(null);
+        setLoading(true);
+        try {
+            await login(username, password);
+            onLogin?.();
+        } catch (err) {
+            setError(err instanceof Error ? err.message : 'Login failed');
+        } finally {
+            setLoading(false);
+        }
+    };
+
+    return (
+        <form class={clsx(ui.form, cls, className)} onSubmit={handleSubmit}>
+            <div class={ui.formGroup}>
+                <label class={ui.label}>Username</label>
+                <input
+                    class={ui.input}
+                    type="text"
+                    value={username}
+                    onInput={handleUsername}
+                    autocomplete="username"
+                    required
+                />
+            </div>
+            <div class={ui.formGroup}>
+                <label class={ui.label}>Password</label>
+                <input
+                    class={ui.input}
+                    type="password"
+                    value={password}
+                    onInput={handlePassword}
+                    autocomplete="current-password"
+                    required
+                />
+            </div>
+            {error && <span class={styles.error}>{error}</span>}
+            <button class={ui.buttonPrimary} type="submit" disabled={loading}>
+                {loading ? 'Logging in…' : 'Log in'}
+            </button>
+        </form>
+    );
+};

src/common/hooks/useRemote.ts

@@ -1,10 +1,12 @@
 import { useEffect, useReducer, useState, type Dispatch, type Reducer, type StateUpdater } from "preact/hooks";
 import { loadObject, saveObject } from "@common/storage";
+import { storedStateKey, storedReducerKey } from "@common/hooks/useStored";
 
-declare const GAME: string;
+export const remoteStateKey = (key: string) => `useRemoteState.${GAME}.${key}`;
+export const remoteReducerKey = (key: string) => `useRemoteReducer.${GAME}.${key}`;
 
 export const useRemoteState = <T>(key: string, initialValue: T) => {
-    const storedKey = `useRemoteState.${GAME}.${key}`;
+    const storedKey = remoteStateKey(key);
 
     const [value, setValue] = useState<T>(initialValue);
 
@@ -34,10 +36,35 @@ const wrapReducer = <T, A>(reducer: Reducer<T, A>): Reducer<T, A | HydrateAction
         return reducer(state, action);
     };
 
-export const useRemoteReducer = <T, A>(key: string, reducer: Reducer<T, A>, initialValue: T) => {
+/** Copies a useStoredState value into the useRemoteState slot and syncs it remotely. */
-    const storedKey = `useRemoteReducer.${GAME}.${key}`;
+export const importStoredState = <T>(key: string): boolean => {
+    const raw = localStorage.getItem(storedStateKey(key));
+    if (!raw) return false;
+    saveObject(remoteStateKey(key), JSON.parse(raw) as T);
+    return true;
+};
 
-    const [state, dispatch] = useReducer(wrapReducer(reducer), initialValue);
+/** Copies a useStoredReducer value into the useRemoteReducer slot and syncs it remotely. */
+export const importStoredReducer = <T>(key: string): boolean => {
+    const raw = localStorage.getItem(storedReducerKey(key));
+    if (!raw) return false;
+    saveObject(remoteReducerKey(key), JSON.parse(raw) as T);
+    return true;
+};
+
+export const useRemoteReducer = <T, A>(key: string, reducer: Reducer<T, A>, initialValue: T) => {
+    const storedKey = remoteReducerKey(key);
+
+    const getInitialValue = (): T => {
+        try {
+            const storedValue = localStorage.getItem(storedKey);
+            return storedValue ? JSON.parse(storedValue) : initialValue;
+        } catch {
+            return initialValue;
+        }
+    };
+
+    const [state, dispatch] = useReducer(wrapReducer(reducer), undefined, getInitialValue);
 
     useEffect(() => {
         loadObject<T>(storedKey, initialValue).then((loaded) => {

src/common/hooks/useStored.ts

@@ -1,9 +1,10 @@
 import { useEffect, useReducer, useState, type Dispatch, type Reducer, type StateUpdater } from "preact/hooks";
 
-declare const GAME: string;
+export const storedStateKey = (key: string) => `useStoredState.${GAME}.${key}`;
+export const storedReducerKey = (key: string) => `useStoredReducer.${GAME}.${key}`;
 
 export const useStoredState = <T>(key: string, initialValue: T) => {
-    const storedKey = `useStoredState.${GAME}.${key}`;
+    const storedKey = storedStateKey(key);
 
     const [value, setValue] = useState<T>(() => {
         try {
@@ -22,7 +23,7 @@ export const useStoredState = <T>(key: string, initialValue: T) => {
 };
 
 export const useStoredReducer = <T, A>(key: string, reducer: Reducer<T, A>, initialValue: T) => {
-    const storedKey = `useStoredReducer.${GAME}.${key}`;
+    const storedKey = storedReducerKey(key);
 
     const getInitialValue = (): T => {
         try {

src/common/storage.ts

@@ -1,62 +1,93 @@
-const saveThrottleDelay = 2000;
+const SAVE_THROTTLE_MS = 2000;
+const TOKEN_KEY = '__storage_token__';
+const BASE_URL = '/storage/api';
+
 const pendingSaves = new Map<string, ReturnType<typeof setTimeout>>();
 
+// ─── Auth ────────────────────────────────────────────────────
+
+let token: string | null = localStorage.getItem(TOKEN_KEY);
+
+export const isLoggedIn = () => token !== null;
+
+export const login = async (username: string, password: string): Promise<void> => {
+    const res = await fetch(`${BASE_URL}/login`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ username, password }),
+    });
+    const json = await res.json();
+    if (!res.ok) throw new Error(json.error ?? 'Login failed');
+    token = json.token;
+    localStorage.setItem(TOKEN_KEY, json.token);
+};
+
+export const logout = () => {
+    token = null;
+    localStorage.removeItem(TOKEN_KEY);
+};
+
+// ─── Storage ─────────────────────────────────────────────────
+
 export const loadObject = async <T>(key: string, defaultObject: T): Promise<T> => {
     let localObject: Partial<T> = {};
-
     try {
         const json = localStorage.getItem(key);
-        if (json) {
+        if (json) localObject = JSON.parse(json);
-            localObject = JSON.parse(json);
-        }
     } catch { }
 
     let remoteObject: Partial<T> = {};
-    try {
+    if (token) {
-        // TODO loading from a remote source
+        try {
-        const compressedData = new Blob([]);
+            const res = await fetch(`${BASE_URL}/storage/${key}`, {
-        const decompressedData = await decompressBlob(compressedData);
+                headers: { 'Authorization': `Bearer ${token}` },
-        remoteObject = JSON.parse(await decompressedData.text());
+            });
-    } catch { }
+            if (res.ok) remoteObject = await res.json();
+        } catch { }
+    }
 
     return { ...defaultObject, ...localObject, ...remoteObject };
 }
 
 export const saveObject = <T>(key: string, obj: T) => {
-    const existing = pendingSaves.get(key);
-    if (existing) clearTimeout(existing);
-    pendingSaves.set(key, setTimeout(() => {
-        pendingSaves.delete(key);
-        doSaveObject(key, obj);
-    }, saveThrottleDelay));
-};
-
-const doSaveObject = async <T>(key: string, obj: T) => {
     const saveData = JSON.stringify(obj);
 
     try {
         localStorage.setItem(key, saveData);
     } catch { }
 
-    try {
+    if (token) {
-        const compressedData = await compressBlob(saveData);
+        const existing = pendingSaves.get(key);
-        // TODO saving to remote storage
+        if (existing) clearTimeout(existing);
-        void compressedData;
+        pendingSaves.set(key, setTimeout(() => {
-    } catch {
+            pendingSaves.delete(key);
+            saveRemote(key, saveData);
+        }, SAVE_THROTTLE_MS));
     }
-}
+};
+
+const saveRemote = async (key: string, saveData: string) => {
+    try {
+        await fetch(`${BASE_URL}/storage/${key}`, {
+            method: 'POST',
+            headers: {
+                'Authorization': `Bearer ${token}`,
+                'Content-Type': 'application/json',
+            },
+            body: saveData,
+        });
+    } catch { }
+};
+
+// ─── Compression utils ───────────────────────────────────────
 
 export const compressBlob = async (blob: Blob | string): Promise<Blob> => {
-    if (typeof blob === 'string') {
+    if (typeof blob === 'string') blob = new Blob([blob]);
-        blob = new Blob([blob]);
-    }
     const cs = new CompressionStream("gzip");
-    const compressedStream = blob.stream().pipeThrough(cs);
+    return await new Response(blob.stream().pipeThrough(cs)).blob();
-    return await new Response(compressedStream).blob();
 }
 
 export const decompressBlob = async (blob: Blob): Promise<Blob> => {
     const ds = new DecompressionStream("gzip");
-    const decompressedStream = blob.stream().pipeThrough(ds);
+    return await new Response(blob.stream().pipeThrough(ds)).blob();
-    return await new Response(decompressedStream).blob();
 }

src/games/index/index.tsx

@@ -2,8 +2,6 @@ import { render } from "preact";
 import styles from "./assets/game.module.css";
 import type { Game } from "../../../build/isGame";
 
-declare const GAMES: Game[];
-
 function GameList({ games }: { games: Game[] }) {
     return (
         <div class={styles.games}>

src/games/storywriter/assets/settings-modal.module.css

@@ -71,10 +71,6 @@
     min-height: unset;
 }
 
-.button {
-    composes: button from '@common/assets/ui.module.css';
-}
-
 .buttonSecondary {
     composes: buttonSecondary from '@common/assets/ui.module.css';
 }
@@ -84,6 +80,10 @@
     color: var(--accent-text);
 }
 
+.buttonDanger {
+    composes: buttonDanger from '@common/assets/ui.module.css';
+}
+
 .inputRow {
     composes: inputRow from '@common/assets/ui.module.css';
 }

src/games/storywriter/components/settings-modal.tsx

@@ -10,13 +10,14 @@ import { SamplingSettings } from "./settings/sampling";
 import { SystemInstructionSettings } from "./settings/system-instruction";
 import { ImageSettings } from "./settings/image";
 import { UserSettings } from "./settings/user";
+import { LoginSettings } from "./settings/login";
 
 interface Props {
     open: boolean;
     onClose: () => void;
 }
 
-type Tab = "banned-tokens" | "system-instruction" | "chat-system-instruction" | "continue-prompt" | "connection" | "user" | "sampling" | "image";
+type Tab = "banned-tokens" | "system-instruction" | "chat-system-instruction" | "continue-prompt" | "connection" | "user" | "sampling" | "image" | "login";
 
 const TABS: { id: Tab; label: string }[] = [
     { id: "connection", label: "Connection" },
@@ -27,6 +28,7 @@ const TABS: { id: Tab; label: string }[] = [
     { id: "system-instruction", label: "System Instruction" },
     { id: "continue-prompt", label: "Continue Prompt" },
     { id: "chat-system-instruction", label: "Chat System Instruction" },
+    { id: "login", label: "Login" },
 ];
 
 export const SettingsModal = ({ open, onClose }: Props) => {
@@ -60,6 +62,7 @@ export const SettingsModal = ({ open, onClose }: Props) => {
             {activeTab === "connection" && <ConnectionSettings />}
             {activeTab === "sampling" && <SamplingSettings />}
             {activeTab === "image" && <ImageSettings />}
+            {activeTab === "login" && <LoginSettings />}
         </Modal>
     );
 };

src/games/storywriter/components/settings/connection.tsx

@@ -4,7 +4,7 @@ import { useInputState } from "@common/hooks/useInputState";
 import { useUpdate } from "@common/hooks/useUpdate";
 import { fuzzyMatch } from "@common/utils";
 import clsx from "clsx";
-import { useMemo, useRef } from "preact/hooks";
+import { useEffect, useMemo, useRef } from "preact/hooks";
 import styles from "../../assets/settings-modal.module.css";
 import { useAppState } from "../../contexts/state";
 import LLM from "../../utils/llm";

src/games/storywriter/components/settings/image.tsx

@@ -114,7 +114,7 @@ export const ImageSettings = () => {
                 />
             </div>
             <div>
-                <button class={styles.button} onClick={handleReset}>
+                <button class={styles.buttonSecondary} onClick={handleReset}>
                     Reset to defaults
                 </button>
             </div>

src/games/storywriter/components/settings/login.tsx

@@ -0,0 +1,36 @@
+import { useState } from "preact/hooks";
+import { LoginForm } from "@common/components/LoginForm";
+import { isLoggedIn, logout } from "@common/storage";
+import { importStoredReducer } from "@common/hooks/useRemote";
+import { STATE_KEY } from "../../contexts/state";
+import styles from "../../assets/settings-modal.module.css";
+
+export const LoginSettings = () => {
+    const [loggedIn, setLoggedIn] = useState(isLoggedIn);
+    const [imported, setImported] = useState(false);
+
+    const handleLogin = () => setLoggedIn(true);
+
+    const handleLogout = () => {
+        logout();
+        setLoggedIn(false);
+    };
+
+    const handleImport = () => {
+        if (importStoredReducer(STATE_KEY)) setImported(true);
+    };
+
+    if (loggedIn) {
+        return (
+            <div class={styles.form}>
+                <span class={styles.label}>Logged in. Save data is synced to the server.</span>
+                <button class={styles.buttonSecondary} onClick={handleImport} disabled={imported}>
+                    {imported ? 'Imported' : 'Import settings from local storage'}
+                </button>
+                <button class={styles.buttonDanger} onClick={handleLogout}>Log out</button>
+            </div>
+        );
+    }
+
+    return <LoginForm onLogin={handleLogin} class={styles.form} />;
+};

src/games/storywriter/components/settings/sampling.tsx

@@ -14,12 +14,12 @@ interface ParamConfig {
 }
 
 const PARAMS: ParamConfig[] = [
-    { key: "temperature",         label: "Temperature",          min: 0,   max: 4,   step: 0.01 },
+    { key: "temperature", label: "Temperature", min: 0, max: 4, step: 0.01 },
-    { key: "top_p",               label: "Top P",                min: 0,   max: 1,   step: 0.01 },
+    { key: "top_p", label: "Top P", min: 0, max: 1, step: 0.01 },
-    { key: "top_k",               label: "Top K",                min: 0,   max: 200, step: 1    },
+    { key: "top_k", label: "Top K", min: 0, max: 200, step: 1 },
-    { key: "min_p",               label: "Min P",                min: 0,   max: 1,   step: 0.01 },
+    { key: "min_p", label: "Min P", min: 0, max: 1, step: 0.01 },
-    { key: "repetition_penalty",  label: "Repetition Penalty",   min: 1,   max: 3,   step: 0.01 },
+    { key: "repetition_penalty", label: "Repetition Penalty", min: 1, max: 3, step: 0.01 },
-    { key: "frequency_penalty",   label: "Frequency Penalty",    min: -2,  max: 2,   step: 0.01 },
+    { key: "frequency_penalty", label: "Frequency Penalty", min: -2, max: 2, step: 0.01 },
 ];
 
 function ParamRow({ config, initialValue, onChange }: {
@@ -83,7 +83,7 @@ export const SamplingSettings = () => {
                 />
             ))}
             <div>
-                <button class={styles.button} onClick={handleReset}>
+                <button class={styles.buttonSecondary} onClick={handleReset}>
                     Reset to defaults
                 </button>
             </div>

src/games/storywriter/contexts/state.tsx

@@ -1,4 +1,4 @@
-import { useStoredReducer } from "@common/hooks/useStored";
+import { useRemoteReducer } from "@common/hooks/useRemote";
 import { createContext } from "preact";
 import { useContext, useMemo } from "preact/hooks";
 import Chapters from "../utils/chapters";
@@ -695,8 +695,10 @@ export const useAppState = () => useContext(StateContext);
 
 // ─── Provider ────────────────────────────────────────────────────────────────
 
+export const STATE_KEY = 'state';
+
 export const StateContextProvider = ({ children }: { children?: any }) => {
-    const [state, dispatch] = useStoredReducer('state', reducer, DEFAULT_STATE);
+    const [state, dispatch] = useRemoteReducer(STATE_KEY, reducer, DEFAULT_STATE);
 
     const value = useMemo<AppState>(() => {
         const currentWorld = state.worlds.find(w => w.id === state.currentWorldId) ?? null;

src/index.ts

@@ -1,5 +1,3 @@
-declare const GAME: string;
-
 async function main() {
     const { default: runGame }: { default: RunGame } = await import(`./games/${GAME}`);
     await runGame();

src/types.d.ts

@@ -3,6 +3,9 @@ type Rect = [number, number, number, number];
 
 type RunGame = () => Promise<void>;
 
+declare const GAME: string;
+declare const GAMES: Game[];
+
 declare namespace WebAssembly {
     type tc = 'i32' | 'i64' | 'f32' | 'f64';
     export class Function {