chore: update deno.json

https://elysiajs.com/
Reviewed-on: pinks/eris#25
Co-authored-by: pinks <lisq@cock.li>
Co-committed-by: pinks <lisq@cock.li>

.gitignore

@@ -1,3 +1,4 @@
 .env
 *.db
 *.db-*
+deno.lock

README.md

@@ -1,5 +1,11 @@
 # Eris the Bot
 
+[![Website](https://img.shields.io/website?url=https%3A%2F%2Feris.lisq.eu%2F)](https://eris.lisq.eu/)
+![Unique users](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Feris.lisq.eu%2Fapi%2Fstats&query=%24.userCount&label=unique%20users)
+![Generated images](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Feris.lisq.eu%2Fapi%2Fstats&query=%24.imageCount&label=images%20generated)
+![Processed steps](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Feris.lisq.eu%2Fapi%2Fstats&query=%24.stepCount&label=steps%20processed)
+![Painted pixels](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Feris.lisq.eu%2Fapi%2Fstats&query=%24.pixelCount&label=pixels%20painted)
+
 Telegram bot for generating images from text.
 
 ## Requirements

api/adminsRoute.ts

@@ -1,129 +1,128 @@
-import { Model } from "indexed_kv";
 import { info } from "std/log/mod.ts";
-import { createEndpoint, createMethodFilter, createPathFilter } from "t_rest/server";
+import { Elysia, Static, t } from "elysia";
 import { Admin, adminSchema, adminStore } from "../app/adminStore.ts";
-import { getUser, withAdmin, withUser } from "./withUser.ts";
+import { getUser, withSessionAdmin, withSessionUser } from "./getUser.ts";
+import { TkvEntry } from "../utils/Tkv.ts";
 
-export type AdminData = Admin & { id: string };
+const adminDataSchema = t.Intersect([adminSchema, t.Object({ tgUserId: t.Number() })]);
 
-function getAdminData(adminEntry: Model<Admin>): AdminData {
-  return { id: adminEntry.id, ...adminEntry.value };
+export type AdminData = Static<typeof adminDataSchema>;
+
+function getAdminData(adminEntry: TkvEntry<["admins", number], Admin>): AdminData {
+  return { tgUserId: adminEntry.key[1], ...adminEntry.value };
 }
 
-export const adminsRoute = createPathFilter({
-  "": createMethodFilter({
-    GET: createEndpoint(
-      {},
-      async () => {
-        const adminEntries = await adminStore.getAll();
-        const admins = adminEntries.map(getAdminData);
-        return {
-          status: 200,
-          body: { type: "application/json", data: admins satisfies AdminData[] },
-        };
+export const adminsRoute = new Elysia()
+  .get(
+    "",
+    async () => {
+      const adminEntries = await Array.fromAsync(adminStore.list({ prefix: ["admins"] }));
+      const admins = adminEntries.map(getAdminData);
+      return admins;
+    },
+    {
+      response: t.Array(adminDataSchema),
+    },
+  )
+  .post(
+    "",
+    async ({ query, body, set }) => {
+      return withSessionAdmin({ query, set }, async (sessionUser, sessionAdminEntry) => {
+        const newAdminUser = await getUser(body.tgUserId);
+        const newAdminKey = ["admins", body.tgUserId] as const;
+        const newAdminValue = { promotedBy: sessionAdminEntry.key[1] };
+        const newAdminResult = await adminStore.atomicSet(newAdminKey, null, newAdminValue);
+        if (!newAdminResult.ok) {
+          set.status = 409;
+          return "User is already an admin";
+        }
+        info(`User ${sessionUser.first_name} promoted user ${newAdminUser.first_name} to admin`);
+        return getAdminData({ ...newAdminResult, key: newAdminKey, value: newAdminValue });
+      });
+    },
+    {
+      query: t.Object({ sessionId: t.String() }),
+      body: t.Object({
+        tgUserId: t.Number(),
+      }),
+      response: {
+        200: adminDataSchema,
+        401: t.Literal("Must be logged in"),
+        403: t.Literal("Must be an admin"),
+        409: t.Literal("User is already an admin"),
       },
-    ),
-    POST: createEndpoint(
-      {
-        query: {
-          sessionId: { type: "string" },
-        },
-        body: {
-          type: "application/json",
-          schema: {
-            type: "object",
-            properties: {
-              tgUserId: adminSchema.properties.tgUserId,
-            },
-            required: ["tgUserId"],
-          },
-        },
+    },
+  )
+  .post(
+    "/promote_self",
+    // if there are no admins, allow any user to promote themselves
+    async ({ query, set }) => {
+      return withSessionUser({ query, set }, async (sessionUser) => {
+        const adminEntries = await Array.fromAsync(adminStore.list({ prefix: ["admins"] }));
+        if (adminEntries.length !== 0) {
+          set.status = 409;
+          return "You are not allowed to promote yourself";
+        }
+        const newAdminKey = ["admins", sessionUser.id] as const;
+        const newAdminValue = { promotedBy: null };
+        const newAdminResult = await adminStore.set(newAdminKey, newAdminValue);
+        info(`User ${sessionUser.first_name} promoted themselves to admin`);
+        return getAdminData({ ...newAdminResult, key: newAdminKey, value: newAdminValue });
+      });
+    },
+    {
+      query: t.Object({ sessionId: t.String() }),
+      response: {
+        200: adminDataSchema,
+        401: t.Literal("Must be logged in"),
+        403: t.Literal("Must be an admin"),
+        409: t.Literal("You are not allowed to promote yourself"),
       },
-      async ({ query, body }) => {
-        return withAdmin(query, async (user, adminEntry) => {
-          const newAdminUser = await getUser(body.data.tgUserId);
-          const newAdminEntry = await adminStore.create({
-            tgUserId: body.data.tgUserId,
-            promotedBy: adminEntry.id,
-          });
-          info(`User ${user.first_name} promoted user ${newAdminUser.first_name} to admin`);
-          return {
-            status: 200,
-            body: { type: "application/json", data: getAdminData(newAdminEntry) },
-          };
-        });
+    },
+  )
+  .get(
+    "/:adminId",
+    async ({ params, set }) => {
+      const adminEntry = await adminStore.get(["admins", Number(params.adminId)]);
+      if (!adminEntry.versionstamp) {
+        set.status = 404;
+        return "Admin not found";
+      }
+      return getAdminData(adminEntry);
+    },
+    {
+      params: t.Object({ adminId: t.String() }),
+      response: {
+        200: adminDataSchema,
+        404: t.Literal("Admin not found"),
       },
-    ),
-  }),
-
-  "promote_self": createMethodFilter({
-    POST: createEndpoint(
-      {
-        query: {
-          sessionId: { type: "string" },
-        },
+    },
+  )
+  .delete(
+    "/:adminId",
+    async ({ params, query, set }) => {
+      return withSessionAdmin({ query, set }, async (sessionUser) => {
+        const deletedAdminEntry = await adminStore.get(["admins", Number(params.adminId)]);
+        if (!deletedAdminEntry.versionstamp) {
+          set.status = 404;
+          return "Admin not found";
+        }
+        const deletedAdminUser = await getUser(deletedAdminEntry.key[1]);
+        await adminStore.delete(["admins", Number(params.adminId)]);
+        info(
+          `User ${sessionUser.first_name} demoted user ${deletedAdminUser.first_name} from admin`,
+        );
+        return null;
+      });
+    },
+    {
+      params: t.Object({ adminId: t.String() }),
+      query: t.Object({ sessionId: t.String() }),
+      response: {
+        200: t.Null(),
+        401: t.Literal("Must be logged in"),
+        403: t.Literal("Must be an admin"),
+        404: t.Literal("Admin not found"),
       },
-      // if there are no admins, allow any user to promote themselves
-      async ({ query }) => {
-        return withUser(query, async (user) => {
-          const adminEntries = await adminStore.getAll();
-          if (adminEntries.length === 0) {
-            const newAdminEntry = await adminStore.create({
-              tgUserId: user.id,
-              promotedBy: null,
-            });
-            info(`User ${user.first_name} promoted themselves to admin`);
-            return {
-              status: 200,
-              body: { type: "application/json", data: getAdminData(newAdminEntry) },
-            };
-          }
-          return {
-            status: 403,
-            body: { type: "text/plain", data: `You are not allowed to promote yourself` },
-          };
-        });
-      },
-    ),
-  }),
-
-  "{adminId}": createPathFilter({
-    "": createMethodFilter({
-      GET: createEndpoint(
-        {},
-        async ({ params }) => {
-          const adminEntry = await adminStore.getById(params.adminId!);
-          if (!adminEntry) {
-            return { status: 404, body: { type: "text/plain", data: `Admin not found` } };
-          }
-          return {
-            status: 200,
-            body: { type: "application/json", data: getAdminData(adminEntry) },
-          };
-        },
-      ),
-      DELETE: createEndpoint(
-        {
-          query: {
-            sessionId: { type: "string" },
-          },
-        },
-        async ({ params, query }) => {
-          const deletedAdminEntry = await adminStore.getById(params.adminId!);
-          if (!deletedAdminEntry) {
-            return { status: 404, body: { type: "text/plain", data: `Admin not found` } };
-          }
-          const deletedAdminUser = await getUser(deletedAdminEntry.value.tgUserId);
-          return withUser(query, async (chat) => {
-            await deletedAdminEntry.delete();
-            info(`User ${chat.first_name} demoted user ${deletedAdminUser.first_name} from admin`);
-            return {
-              status: 200,
-              body: { type: "application/json", data: null },
-            };
-          });
-        },
-      ),
-    }),
-  }),
-});
+    },
+  );

api/botRoute.ts

@@ -1,9 +1,14 @@
-import { createEndpoint, createMethodFilter } from "t_rest/server";
+import { Elysia, t } from "elysia";
 import { bot } from "../bot/mod.ts";
 
-export const botRoute = createMethodFilter({
-  GET: createEndpoint({ query: null, body: null }, async () => {
-    const username = bot.botInfo.username;
-    return { status: 200, body: { type: "application/json", data: { username } } };
-  }),
-});
+export const botRoute = new Elysia()
+  .get(
+    "",
+    async () => {
+      const username = bot.botInfo.username;
+      return { username };
+    },
+    {
+      response: t.Object({ username: t.String() }),
+    },
+  );

api/getUser.ts

@@ -0,0 +1,45 @@
+import { Chat } from "grammy_types";
+import { Admin, adminStore } from "../app/adminStore.ts";
+import { bot } from "../bot/mod.ts";
+import { sessions } from "./sessionsRoute.ts";
+import { TkvEntry } from "../utils/Tkv.ts";
+
+export async function withSessionUser<O>(
+  { query, set }: { query: { sessionId: string }; set: { status?: string | number } },
+  cb: (sessionUser: Chat.PrivateGetChat) => Promise<O>,
+) {
+  const session = sessions.get(query.sessionId);
+  if (!session?.userId) {
+    set.status = 401;
+    return "Must be logged in";
+  }
+  const user = await getUser(session.userId);
+  return cb(user);
+}
+
+export async function withSessionAdmin<O>(
+  { query, set }: { query: { sessionId: string }; set: { status?: string | number } },
+  cb: (
+    sessionUser: Chat.PrivateGetChat,
+    sessionAdminEntry: TkvEntry<["admins", number], Admin>,
+  ) => Promise<O>,
+) {
+  const session = sessions.get(query.sessionId);
+  if (!session?.userId) {
+    set.status = 401;
+    return "Must be logged in";
+  }
+  const sessionUser = await getUser(session.userId);
+  const sessionAdminEntry = await adminStore.get(["admins", sessionUser.id]);
+  if (!sessionAdminEntry.versionstamp) {
+    set.status = 403;
+    return "Must be an admin";
+  }
+  return cb(sessionUser, sessionAdminEntry);
+}
+
+export async function getUser(userId: number): Promise<Chat.PrivateGetChat> {
+  const chat = await bot.api.getChat(userId);
+  if (chat.type !== "private") throw new Error("Chat is not private");
+  return chat;
+}

api/jobsRoute.ts

@@ -1,15 +1,40 @@
-import { createEndpoint, createMethodFilter } from "t_rest/server";
+import { Elysia, t } from "elysia";
 import { generationQueue } from "../app/generationQueue.ts";
 
-export const jobsRoute = createMethodFilter({
-  GET: createEndpoint(
-    { query: null, body: null },
-    async () => ({
-      status: 200,
-      body: {
-        type: "application/json",
-        data: await generationQueue.getAllJobs(),
-      },
-    }),
-  ),
-});
+export const jobsRoute = new Elysia()
+  .get(
+    "",
+    async () => {
+      const allJobs = await generationQueue.getAllJobs();
+      return allJobs.map((job) => ({
+        id: job.id.join(":"),
+        place: job.place,
+        state: {
+          from: {
+            language_code: job.state.from.language_code ?? null,
+            first_name: job.state.from.first_name,
+            last_name: job.state.from.last_name ?? null,
+            username: job.state.from.username ?? null,
+          },
+          progress: job.state.progress ?? null,
+          workerInstanceKey: job.state.workerInstanceKey ?? null,
+        },
+      }));
+    },
+    {
+      response: t.Array(t.Object({
+        id: t.String(),
+        place: t.Number(),
+        state: t.Object({
+          from: t.Object({
+            language_code: t.Nullable(t.String()),
+            first_name: t.String(),
+            last_name: t.Nullable(t.String()),
+            username: t.Nullable(t.String()),
+          }),
+          progress: t.Nullable(t.Number()),
+          workerInstanceKey: t.Nullable(t.String()),
+        }),
+      })),
+    },
+  );

api/mod.ts

@@ -1,12 +1,12 @@
 import { route } from "reroute";
 import { serveSpa } from "serve_spa";
-import { serveApi } from "./serveApi.ts";
+import { api } from "./serveApi.ts";
 import { fromFileUrl } from "std/path/mod.ts";
 
 export async function serveUi() {
   const server = Deno.serve({ port: 5999 }, (request) =>
     route(request, {
-      "/api/*": (request) => serveApi(request),
+      "/api/*": (request) => api.fetch(request),
       "/*": (request) =>
         serveSpa(request, {
           fsRoot: fromFileUrl(new URL("../ui/", import.meta.url)),

api/paramsRoute.ts

@@ -1,34 +1,39 @@
-import { deepMerge } from "std/collections/deep_merge.ts";
+import { Elysia, t } from "elysia";
 import { info } from "std/log/mod.ts";
-import { createEndpoint, createMethodFilter } from "t_rest/server";
-import { configSchema, getConfig, setConfig } from "../app/config.ts";
-import { withAdmin } from "./withUser.ts";
+import { defaultParamsSchema, getConfig, setConfig } from "../app/config.ts";
+import { withSessionAdmin } from "./getUser.ts";
 
-export const paramsRoute = createMethodFilter({
-  GET: createEndpoint(
-    { query: null, body: null },
+export const paramsRoute = new Elysia()
+  .get(
+    "",
     async () => {
       const config = await getConfig();
-      return { status: 200, body: { type: "application/json", data: config.defaultParams } };
+      return config.defaultParams;
     },
-  ),
-
-  PATCH: createEndpoint(
     {
-      query: { sessionId: { type: "string" } },
-      body: {
-        type: "application/json",
-        schema: configSchema.properties.defaultParams,
+      response: {
+        200: defaultParamsSchema,
       },
     },
-    async ({ query, body }) => {
-      return withAdmin(query, async (user) => {
+  )
+  .patch(
+    "",
+    async ({ query, body, set }) => {
+      return withSessionAdmin({ query, set }, async (user) => {
         const config = await getConfig();
-        info(`User ${user.first_name} updated default params: ${JSON.stringify(body.data)}`);
-        const defaultParams = deepMerge(config.defaultParams ?? {}, body.data);
+        info(`User ${user.first_name} updated default params: ${JSON.stringify(body)}`);
+        const defaultParams = { ...config.defaultParams, ...body };
         await setConfig({ defaultParams });
-        return { status: 200, body: { type: "application/json", data: config.defaultParams } };
+        return config.defaultParams;
       });
     },
-  ),
-});
+    {
+      query: t.Object({ sessionId: t.String() }),
+      body: defaultParamsSchema,
+      response: {
+        200: defaultParamsSchema,
+        401: t.Literal("Must be logged in"),
+        403: t.Literal("Must be an admin"),
+      },
+    },
+  );

api/serveApi.ts

@@ -1,4 +1,5 @@
-import { createLoggerMiddleware, createPathFilter } from "t_rest/server";
+import { Elysia } from "elysia";
+import { swagger } from "elysia/swagger";
 import { adminsRoute } from "./adminsRoute.ts";
 import { botRoute } from "./botRoute.ts";
 import { jobsRoute } from "./jobsRoute.ts";
@@ -8,18 +9,24 @@ import { statsRoute } from "./statsRoute.ts";
 import { usersRoute } from "./usersRoute.ts";
 import { workersRoute } from "./workersRoute.ts";
 
-export const serveApi = createLoggerMiddleware(
-  createPathFilter({
-    "admins": adminsRoute,
-    "bot": botRoute,
-    "jobs": jobsRoute,
-    "sessions": sessionsRoute,
-    "settings/params": paramsRoute,
-    "stats": statsRoute,
-    "users": usersRoute,
-    "workers": workersRoute,
-  }),
-  { filterStatus: (status) => status >= 400 },
-);
+export const api = new Elysia()
+  .use(
+    swagger({
+      path: "/docs",
+      swaggerOptions: { url: "docs/json" } as never,
+      documentation: {
+        info: { title: "Eris API", version: "0.1" },
+        servers: [{ url: "/api" }],
+      },
+    }),
+  )
+  .group("/admins", (api) => api.use(adminsRoute))
+  .group("/bot", (api) => api.use(botRoute))
+  .group("/jobs", (api) => api.use(jobsRoute))
+  .group("/sessions", (api) => api.use(sessionsRoute))
+  .group("/settings/params", (api) => api.use(paramsRoute))
+  .group("/stats", (api) => api.use(statsRoute))
+  .group("/users", (api) => api.use(usersRoute))
+  .group("/workers", (api) => api.use(workersRoute));
 
-export type ApiHandler = typeof serveApi;
+export type Api = typeof api;

api/sessionsRoute.ts

@@ -1,4 +1,4 @@
-import { createEndpoint, createMethodFilter, createPathFilter } from "t_rest/server";
+import { Elysia, NotFoundError, t } from "elysia";
 import { ulid } from "ulid";
 
 export const sessions = new Map<string, Session>();
@@ -7,30 +7,37 @@ export interface Session {
   userId?: number | undefined;
 }
 
-export const sessionsRoute = createPathFilter({
-  "": createMethodFilter({
-    POST: createEndpoint(
-      { query: null, body: null },
-      async () => {
-        const id = ulid();
-        const session: Session = {};
-        sessions.set(id, session);
-        return { status: 200, body: { type: "application/json", data: { id, ...session } } };
-      },
-    ),
-  }),
-
-  "{sessionId}": createMethodFilter({
-    GET: createEndpoint(
-      { query: null, body: null },
-      async ({ params }) => {
-        const id = params.sessionId!;
-        const session = sessions.get(id);
-        if (!session) {
-          return { status: 401, body: { type: "text/plain", data: "Session not found" } };
-        }
-        return { status: 200, body: { type: "application/json", data: { id, ...session } } };
-      },
-    ),
-  }),
-});
+export const sessionsRoute = new Elysia()
+  .post(
+    "",
+    async () => {
+      const id = ulid();
+      const session: Session = {};
+      sessions.set(id, session);
+      return { id, userId: session.userId ?? null };
+    },
+    {
+      response: t.Object({
+        id: t.String(),
+        userId: t.Nullable(t.Number()),
+      }),
+    },
+  )
+  .get(
+    "/:sessionId",
+    async ({ params }) => {
+      const id = params.sessionId!;
+      const session = sessions.get(id);
+      if (!session) {
+        throw new NotFoundError("Session not found");
+      }
+      return { id, userId: session.userId ?? null };
+    },
+    {
+      params: t.Object({ sessionId: t.String() }),
+      response: t.Object({
+        id: t.String(),
+        userId: t.Nullable(t.Number()),
+      }),
+    },
+  );

api/statsRoute.ts

@@ -1,125 +1,134 @@
+import { Elysia, t } from "elysia";
 import { subMinutes } from "date-fns";
-import { createEndpoint, createMethodFilter, createPathFilter } from "t_rest/server";
-import { getDailyStats } from "../app/dailyStatsStore.ts";
+import { dailyStatsSchema, getDailyStats } from "../app/dailyStatsStore.ts";
 import { generationStore } from "../app/generationStore.ts";
 import { globalStats } from "../app/globalStats.ts";
-import { getUserDailyStats } from "../app/userDailyStatsStore.ts";
-import { getUserStats } from "../app/userStatsStore.ts";
+import { getUserDailyStats, userDailyStatsSchema } from "../app/userDailyStatsStore.ts";
+import { getUserStats, userStatsSchema } from "../app/userStatsStore.ts";
+import { withSessionAdmin } from "./getUser.ts";
 
 const STATS_INTERVAL_MIN = 3;
 
-export const statsRoute = createPathFilter({
-  "": createMethodFilter({
-    GET: createEndpoint(
-      { query: null, body: null },
-      async () => {
-        const after = subMinutes(new Date(), STATS_INTERVAL_MIN);
-        const generations = await generationStore.getAll({ after });
+export const statsRoute = new Elysia()
+  .get(
+    "",
+    async () => {
+      const after = subMinutes(new Date(), STATS_INTERVAL_MIN);
+      const generations = await generationStore.getAll({ after });
 
-        const imagesPerMinute = generations.length / STATS_INTERVAL_MIN;
+      const imagesPerMinute = generations.length / STATS_INTERVAL_MIN;
 
-        const stepsPerMinute = generations
-          .map((generation) => generation.value.info?.steps ?? 0)
-          .reduce((sum, steps) => sum + steps, 0) / STATS_INTERVAL_MIN;
+      const stepsPerMinute = generations
+        .map((generation) => generation.value.info?.steps ?? 0)
+        .reduce((sum, steps) => sum + steps, 0) / STATS_INTERVAL_MIN;
 
-        const pixelsPerMinute = generations
-          .map((generation) =>
-            (generation.value.info?.width ?? 0) * (generation.value.info?.height ?? 0)
-          )
-          .reduce((sum, pixels) => sum + pixels, 0) / STATS_INTERVAL_MIN;
+      const pixelsPerMinute = generations
+        .map((generation) =>
+          (generation.value.info?.width ?? 0) * (generation.value.info?.height ?? 0)
+        )
+        .reduce((sum, pixels) => sum + pixels, 0) / STATS_INTERVAL_MIN;
 
-        const pixelStepsPerMinute = generations
-          .map((generation) =>
-            (generation.value.info?.width ?? 0) * (generation.value.info?.height ?? 0) *
-            (generation.value.info?.steps ?? 0)
-          )
-          .reduce((sum, pixelSteps) => sum + pixelSteps, 0) / STATS_INTERVAL_MIN;
+      const pixelStepsPerMinute = generations
+        .map((generation) =>
+          (generation.value.info?.width ?? 0) * (generation.value.info?.height ?? 0) *
+          (generation.value.info?.steps ?? 0)
+        )
+        .reduce((sum, pixelSteps) => sum + pixelSteps, 0) / STATS_INTERVAL_MIN;
 
-        return {
-          status: 200,
-          body: {
-            type: "application/json",
-            data: {
-              imageCount: globalStats.imageCount,
-              stepCount: globalStats.stepCount,
-              pixelCount: globalStats.pixelCount,
-              pixelStepCount: globalStats.pixelStepCount,
-              userCount: globalStats.userIds.length,
-              imagesPerMinute,
-              stepsPerMinute,
-              pixelsPerMinute,
-              pixelStepsPerMinute,
-            },
-          },
-        };
+      return {
+        imageCount: globalStats.imageCount,
+        stepCount: globalStats.stepCount,
+        pixelCount: globalStats.pixelCount,
+        pixelStepCount: globalStats.pixelStepCount,
+        userCount: globalStats.userIds.length,
+        imagesPerMinute,
+        stepsPerMinute,
+        pixelsPerMinute,
+        pixelStepsPerMinute,
+      };
+    },
+    {
+      response: {
+        200: t.Object({
+          imageCount: t.Number(),
+          stepCount: t.Number(),
+          pixelCount: t.Number(),
+          pixelStepCount: t.Number(),
+          userCount: t.Number(),
+          imagesPerMinute: t.Number(),
+          stepsPerMinute: t.Number(),
+          pixelsPerMinute: t.Number(),
+          pixelStepsPerMinute: t.Number(),
+        }),
       },
-    ),
-  }),
-  "daily/{year}/{month}/{day}": createMethodFilter({
-    GET: createEndpoint(
-      { query: null, body: null },
-      async ({ params }) => {
-        const year = Number(params.year);
-        const month = Number(params.month);
-        const day = Number(params.day);
-        const stats = await getDailyStats(year, month, day);
-        return {
-          status: 200,
-          body: {
-            type: "application/json",
-            data: {
-              imageCount: stats.imageCount,
-              pixelCount: stats.pixelCount,
-              userCount: stats.userIds.length,
-              timestamp: stats.timestamp,
-            },
-          },
-        };
+    },
+  )
+  .get(
+    "/daily/:year/:month/:day",
+    async ({ params }) => {
+      return getDailyStats(params.year, params.month, params.day);
+    },
+    {
+      params: t.Object({
+        year: t.Number(),
+        month: t.Number(),
+        day: t.Number(),
+      }),
+      response: {
+        200: dailyStatsSchema,
       },
-    ),
-  }),
-  "users/{userId}": createMethodFilter({
-    GET: createEndpoint(
-      { query: null, body: null },
-      async ({ params }) => {
-        const userId = Number(params.userId);
-        const stats = await getUserStats(userId);
-        return {
-          status: 200,
-          body: {
-            type: "application/json",
-            data: {
-              imageCount: stats.imageCount,
-              pixelCount: stats.pixelCount,
-              tagCountMap: stats.tagCountMap,
-              timestamp: stats.timestamp,
-            },
-          },
-        };
+    },
+  )
+  .get(
+    "/users/:userId",
+    async ({ params }) => {
+      const userId = params.userId;
+      // deno-lint-ignore no-unused-vars
+      const { tagCountMap, ...stats } = await getUserStats(userId);
+      return stats;
+    },
+    {
+      params: t.Object({ userId: t.Number() }),
+      response: {
+        200: t.Omit(userStatsSchema, ["tagCountMap"]),
       },
-    ),
-  }),
-  "users/{userId}/daily/{year}/{month}/{day}": createMethodFilter({
-    GET: createEndpoint(
-      { query: null, body: null },
-      async ({ params }) => {
-        const userId = Number(params.userId);
-        const year = Number(params.year);
-        const month = Number(params.month);
-        const day = Number(params.day);
-        const stats = await getUserDailyStats(userId, year, month, day);
+    },
+  )
+  .get(
+    "/users/:userId/tagcount",
+    async ({ params, query, set }) => {
+      return withSessionAdmin({ query, set }, async () => {
+        const stats = await getUserStats(params.userId);
         return {
-          status: 200,
-          body: {
-            type: "application/json",
-            data: {
-              imageCount: stats.imageCount,
-              pixelCount: stats.pixelCount,
-              timestamp: stats.timestamp,
-            },
-          },
+          tagCountMap: stats.tagCountMap,
+          timestamp: stats.timestamp,
         };
+      });
+    },
+    {
+      params: t.Object({ userId: t.Number() }),
+      query: t.Object({ sessionId: t.String() }),
+      response: {
+        200: t.Pick(userStatsSchema, ["tagCountMap", "timestamp"]),
+        401: t.Literal("Must be logged in"),
+        403: t.Literal("Must be an admin"),
       },
-    ),
-  }),
-});
+    },
+  )
+  .get(
+    "/users/:userId/daily/:year/:month/:day",
+    async ({ params }) => {
+      return getUserDailyStats(params.userId, params.year, params.month, params.day);
+    },
+    {
+      params: t.Object({
+        userId: t.Number(),
+        year: t.Number(),
+        month: t.Number(),
+        day: t.Number(),
+      }),
+      response: {
+        200: userDailyStatsSchema,
+      },
+    },
+  );

api/usersRoute.ts

@@ -1,50 +1,55 @@
-import { createEndpoint, createMethodFilter, createPathFilter } from "t_rest/server";
+import { Elysia, t } from "elysia";
+import { adminSchema, adminStore } from "../app/adminStore.ts";
 import { bot } from "../bot/mod.ts";
-import { getUser } from "./withUser.ts";
-import { adminStore } from "../app/adminStore.ts";
+import { getUser } from "./getUser.ts";
 
-export const usersRoute = createPathFilter({
-  "{userId}/photo": createMethodFilter({
-    GET: createEndpoint(
-      { query: null, body: null },
-      async ({ params }) => {
-        const user = await getUser(Number(params.userId!));
-        const photoData = user.photo?.small_file_id
-          ? await fetch(
-            `https://api.telegram.org/file/bot${bot.token}/${await bot.api.getFile(
-              user.photo.small_file_id,
-            ).then((file) => file.file_path)}`,
-          ).then((resp) => resp.arrayBuffer())
-          : undefined;
-        if (!photoData) {
-          return { status: 404, body: { type: "text/plain", data: "User has no photo" } };
+export const usersRoute = new Elysia()
+  .get(
+    "/:userId/photo",
+    async ({ params }) => {
+      const user = await getUser(Number(params.userId));
+      if (!user.photo) {
+        throw new Error("User has no photo");
+      }
+      const photoFile = await bot.api.getFile(user.photo.small_file_id);
+      const photoData = await fetch(
+        `https://api.telegram.org/file/bot${bot.token}/${photoFile.file_path}`,
+      ).then((resp) => {
+        if (!resp.ok) {
+          throw new Error("Failed to fetch photo");
         }
-        return {
-          status: 200,
-          body: {
-            type: "image/jpeg",
-            data: new Blob([photoData], { type: "image/jpeg" }),
-          },
-        };
-      },
-    ),
-  }),
+        return resp;
+      }).then((resp) => resp.arrayBuffer());
 
-  "{userId}": createMethodFilter({
-    GET: createEndpoint(
-      { query: null, body: null },
-      async ({ params }) => {
-        const user = await getUser(Number(params.userId!));
-        const [adminEntry] = await adminStore.getBy("tgUserId", { value: user.id });
-        const admin = adminEntry?.value;
-        return {
-          status: 200,
-          body: {
-            type: "application/json",
-            data: { ...user, admin },
-          },
-        };
-      },
-    ),
-  }),
-});
+      return new Response(new File([photoData], "avatar.jpg", { type: "image/jpeg" }));
+    },
+    {
+      params: t.Object({ userId: t.String() }),
+    },
+  )
+  .get(
+    "/:userId",
+    async ({ params }) => {
+      const user = await getUser(Number(params.userId));
+      const adminEntry = await adminStore.get(["admins", user.id]);
+      return {
+        id: user.id,
+        first_name: user.first_name,
+        last_name: user.last_name ?? null,
+        username: user.username ?? null,
+        bio: user.bio ?? null,
+        admin: adminEntry.value ?? null,
+      };
+    },
+    {
+      params: t.Object({ userId: t.String() }),
+      response: t.Object({
+        id: t.Number(),
+        first_name: t.String(),
+        last_name: t.Nullable(t.String()),
+        username: t.Nullable(t.String()),
+        bio: t.Nullable(t.String()),
+        admin: t.Nullable(adminSchema),
+      }),
+    },
+  );

api/withUser.ts

@@ -1,40 +0,0 @@
-import { Chat } from "grammy_types";
-import { Model } from "indexed_kv";
-import { Output } from "t_rest/client";
-import { Admin, adminStore } from "../app/adminStore.ts";
-import { bot } from "../bot/mod.ts";
-import { sessions } from "./sessionsRoute.ts";
-
-export async function withUser<O extends Output>(
-  query: { sessionId: string },
-  cb: (user: Chat.PrivateGetChat) => Promise<O>,
-) {
-  const session = sessions.get(query.sessionId);
-  if (!session?.userId) {
-    return { status: 401, body: { type: "text/plain", data: "Must be logged in" } } as const;
-  }
-  const user = await getUser(session.userId);
-  return cb(user);
-}
-
-export async function withAdmin<O extends Output>(
-  query: { sessionId: string },
-  cb: (user: Chat.PrivateGetChat, admin: Model<Admin>) => Promise<O>,
-) {
-  const session = sessions.get(query.sessionId);
-  if (!session?.userId) {
-    return { status: 401, body: { type: "text/plain", data: "Must be logged in" } } as const;
-  }
-  const user = await getUser(session.userId);
-  const [admin] = await adminStore.getBy("tgUserId", { value: session.userId });
-  if (!admin) {
-    return { status: 403, body: { type: "text/plain", data: "Must be an admin" } } as const;
-  }
-  return cb(user, admin);
-}
-
-export async function getUser(userId: number): Promise<Chat.PrivateGetChat> {
-  const chat = await bot.api.getChat(userId);
-  if (chat.type !== "private") throw new Error("Chat is not private");
-  return chat;
-}

api/workersRoute.ts

@@ -2,7 +2,7 @@ import { subMinutes } from "date-fns";
 import { Model } from "indexed_kv";
 import createOpenApiFetch from "openapi_fetch";
 import { info } from "std/log/mod.ts";
-import { createEndpoint, createMethodFilter, createPathFilter } from "t_rest/server";
+import { Elysia, NotFoundError, Static, t } from "elysia";
 import { activeGenerationWorkers } from "../app/generationQueue.ts";
 import { generationStore } from "../app/generationStore.ts";
 import * as SdApi from "../app/sdApi.ts";
@@ -13,20 +13,27 @@ import {
 } from "../app/workerInstanceStore.ts";
 import { getAuthHeader } from "../utils/getAuthHeader.ts";
 import { omitUndef } from "../utils/omitUndef.ts";
-import { withAdmin } from "./withUser.ts";
+import { withSessionAdmin } from "./getUser.ts";
 
-export type WorkerData = Omit<WorkerInstance, "sdUrl" | "sdAuth"> & {
-  id: string;
-  isActive: boolean;
-  imagesPerMinute: number;
-  stepsPerMinute: number;
-  pixelsPerMinute: number;
-  pixelStepsPerMinute: number;
-};
+const workerResponseSchema = t.Intersect([
+  t.Object({ id: t.String() }),
+  t.Omit(workerInstanceSchema, ["sdUrl", "sdAuth"]),
+  t.Object({
+    isActive: t.Boolean(),
+    imagesPerMinute: t.Number(),
+    stepsPerMinute: t.Number(),
+    pixelsPerMinute: t.Number(),
+    pixelStepsPerMinute: t.Number(),
+  }),
+]);
+
+export type WorkerResponse = Static<typeof workerResponseSchema>;
+
+const workerRequestSchema = t.Omit(workerInstanceSchema, ["lastOnlineTime", "lastError"]);
 
 const STATS_INTERVAL_MIN = 10;
 
-async function getWorkerData(workerInstance: Model<WorkerInstance>): Promise<WorkerData> {
+async function getWorkerResponse(workerInstance: Model<WorkerInstance>): Promise<WorkerResponse> {
   const after = subMinutes(new Date(), STATS_INTERVAL_MIN);
 
   const generations = await generationStore.getBy("workerInstanceKey", {
@@ -51,7 +58,7 @@ async function getWorkerData(workerInstance: Model<WorkerInstance>): Promise<Wor
     )
     .reduce((sum, pixelSteps) => sum + pixelSteps, 0) / STATS_INTERVAL_MIN;
 
-  return {
+  return omitUndef({
     id: workerInstance.id,
     key: workerInstance.value.key,
     name: workerInstance.value.name,
@@ -62,178 +69,177 @@ async function getWorkerData(workerInstance: Model<WorkerInstance>): Promise<Wor
     stepsPerMinute,
     pixelsPerMinute,
     pixelStepsPerMinute,
-  };
+  });
 }
 
-export const workersRoute = createPathFilter({
-  "": createMethodFilter({
-    GET: createEndpoint(
-      { query: null, body: null },
-      async () => {
-        const workerInstances = await workerInstanceStore.getAll();
-        const workers = await Promise.all(workerInstances.map(getWorkerData));
-        return {
-          status: 200,
-          body: { type: "application/json", data: workers satisfies WorkerData[] },
-        };
+export const workersRoute = new Elysia()
+  .get(
+    "",
+    async () => {
+      const workerInstances = await workerInstanceStore.getAll();
+      const workers = await Promise.all(workerInstances.map(getWorkerResponse));
+      return workers;
+    },
+    {
+      response: t.Array(workerResponseSchema),
+    },
+  )
+  .post(
+    "",
+    async ({ query, body, set }) => {
+      return withSessionAdmin({ query, set }, async (sessionUser) => {
+        const workerInstance = await workerInstanceStore.create(body);
+        info(`User ${sessionUser.first_name} created worker ${workerInstance.value.name}`);
+        return await getWorkerResponse(workerInstance);
+      });
+    },
+    {
+      query: t.Object({ sessionId: t.String() }),
+      body: workerRequestSchema,
+      response: {
+        200: workerResponseSchema,
+        401: t.Literal("Must be logged in"),
+        403: t.Literal("Must be an admin"),
       },
-    ),
-    POST: createEndpoint(
-      {
-        query: {
-          sessionId: { type: "string" },
-        },
-        body: {
-          type: "application/json",
-          schema: workerInstanceSchema,
-        },
+    },
+  )
+  .get(
+    "/:workerId",
+    async ({ params }) => {
+      const workerInstance = await workerInstanceStore.getById(params.workerId);
+      if (!workerInstance) {
+        throw new NotFoundError("Worker not found");
+      }
+      return await getWorkerResponse(workerInstance);
+    },
+    {
+      params: t.Object({ workerId: t.String() }),
+      response: {
+        200: workerResponseSchema,
       },
-      async ({ query, body }) => {
-        return withAdmin(query, async (user) => {
-          const workerInstance = await workerInstanceStore.create(body.data);
-          info(`User ${user.first_name} created worker ${workerInstance.value.name}`);
-          return {
-            status: 200,
-            body: { type: "application/json", data: await getWorkerData(workerInstance) },
-          };
-        });
+    },
+  )
+  .patch(
+    "/:workerId",
+    async ({ params, query, body, set }) => {
+      const workerInstance = await workerInstanceStore.getById(params.workerId);
+      if (!workerInstance) {
+        throw new NotFoundError("Worker not found");
+      }
+      return withSessionAdmin({ query, set }, async (sessionUser) => {
+        info(
+          `User ${sessionUser.first_name} updated worker ${workerInstance.value.name}: ${
+            JSON.stringify(body)
+          }`,
+        );
+        await workerInstance.update(body);
+        return await getWorkerResponse(workerInstance);
+      });
+    },
+    {
+      params: t.Object({ workerId: t.String() }),
+      query: t.Object({ sessionId: t.String() }),
+      body: t.Partial(workerRequestSchema),
+      response: {
+        200: workerResponseSchema,
+        401: t.Literal("Must be logged in"),
+        403: t.Literal("Must be an admin"),
       },
-    ),
-  }),
-
-  "{workerId}": createPathFilter({
-    "": createMethodFilter({
-      GET: createEndpoint(
-        { query: null, body: null },
-        async ({ params }) => {
-          const workerInstance = await workerInstanceStore.getById(params.workerId!);
-          if (!workerInstance) {
-            return { status: 404, body: { type: "text/plain", data: `Worker not found` } };
-          }
-          return {
-            status: 200,
-            body: { type: "application/json", data: await getWorkerData(workerInstance) },
-          };
-        },
+    },
+  )
+  .delete(
+    "/:workerId",
+    async ({ params, query, set }) => {
+      const workerInstance = await workerInstanceStore.getById(params.workerId);
+      if (!workerInstance) {
+        throw new Error("Worker not found");
+      }
+      return withSessionAdmin({ query, set }, async (sessionUser) => {
+        info(`User ${sessionUser.first_name} deleted worker ${workerInstance.value.name}`);
+        await workerInstance.delete();
+        return null;
+      });
+    },
+    {
+      params: t.Object({ workerId: t.String() }),
+      query: t.Object({ sessionId: t.String() }),
+      response: {
+        200: t.Null(),
+        401: t.Literal("Must be logged in"),
+        403: t.Literal("Must be an admin"),
+      },
+    },
+  )
+  .get(
+    "/:workerId/loras",
+    async ({ params }) => {
+      const workerInstance = await workerInstanceStore.getById(params.workerId);
+      if (!workerInstance) {
+        throw new NotFoundError("Worker not found");
+      }
+      const sdClient = createOpenApiFetch<SdApi.paths>({
+        baseUrl: workerInstance.value.sdUrl,
+        headers: getAuthHeader(workerInstance.value.sdAuth),
+      });
+      const lorasResponse = await sdClient.GET("/sdapi/v1/loras", {});
+      if (lorasResponse.error) {
+        throw new Error(
+          `Loras request failed: ${lorasResponse["error"]}`,
+        );
+      }
+      const loras = (lorasResponse.data as Lora[]).map((lora) => ({
+        name: lora.name,
+        alias: lora.alias ?? null,
+      }));
+      return loras;
+    },
+    {
+      params: t.Object({ workerId: t.String() }),
+      response: t.Array(
+        t.Object({
+          name: t.String(),
+          alias: t.Nullable(t.String()),
+        }),
       ),
-      PATCH: createEndpoint(
-        {
-          query: {
-            sessionId: { type: "string" },
-          },
-          body: {
-            type: "application/json",
-            schema: { ...workerInstanceSchema, required: [] },
-          },
-        },
-        async ({ params, query, body }) => {
-          const workerInstance = await workerInstanceStore.getById(params.workerId!);
-          if (!workerInstance) {
-            return { status: 404, body: { type: "text/plain", data: `Worker not found` } };
-          }
-          return withAdmin(query, async (user) => {
-            info(
-              `User ${user.first_name} updated worker ${workerInstance.value.name}: ${
-                JSON.stringify(body.data)
-              }`,
-            );
-            await workerInstance.update(omitUndef(body.data));
-            return {
-              status: 200,
-              body: { type: "application/json", data: await getWorkerData(workerInstance) },
-            };
-          });
-        },
+    },
+  )
+  .get(
+    "/:workerId/models",
+    async ({ params }) => {
+      const workerInstance = await workerInstanceStore.getById(params.workerId);
+      if (!workerInstance) {
+        throw new NotFoundError("Worker not found");
+      }
+      const sdClient = createOpenApiFetch<SdApi.paths>({
+        baseUrl: workerInstance.value.sdUrl,
+        headers: getAuthHeader(workerInstance.value.sdAuth),
+      });
+      const modelsResponse = await sdClient.GET("/sdapi/v1/sd-models", {});
+      if (modelsResponse.error) {
+        throw new Error(
+          `Models request failed: ${modelsResponse["error"]}`,
+        );
+      }
+      const models = modelsResponse.data.map((model) => ({
+        title: model.title,
+        modelName: model.model_name,
+        hash: model.hash ?? null,
+        sha256: model.sha256 ?? null,
+      }));
+      return models;
+    },
+    {
+      params: t.Object({ workerId: t.String() }),
+      response: t.Array(
+        t.Object({
+          title: t.String(),
+          modelName: t.String(),
+          hash: t.Nullable(t.String()),
+          sha256: t.Nullable(t.String()),
+        }),
       ),
-      DELETE: createEndpoint(
-        {
-          query: {
-            sessionId: { type: "string" },
-          },
-          body: null,
-        },
-        async ({ params, query }) => {
-          const workerInstance = await workerInstanceStore.getById(params.workerId!);
-          if (!workerInstance) {
-            return { status: 404, body: { type: "text/plain", data: `Worker not found` } };
-          }
-          return withAdmin(query, async (user) => {
-            info(`User ${user.first_name} deleted worker ${workerInstance.value.name}`);
-            await workerInstance.delete();
-            return { status: 200, body: { type: "application/json", data: null } };
-          });
-        },
-      ),
-    }),
-
-    "loras": createMethodFilter({
-      GET: createEndpoint(
-        { query: null, body: null },
-        async ({ params }) => {
-          const workerInstance = await workerInstanceStore.getById(params.workerId!);
-          if (!workerInstance) {
-            return { status: 404, body: { type: "text/plain", data: `Worker not found` } };
-          }
-          const sdClient = createOpenApiFetch<SdApi.paths>({
-            baseUrl: workerInstance.value.sdUrl,
-            headers: getAuthHeader(workerInstance.value.sdAuth),
-          });
-          const lorasResponse = await sdClient.GET("/sdapi/v1/loras", {});
-          if (lorasResponse.error) {
-            return {
-              status: 500,
-              body: { type: "text/plain", data: `Loras request failed: ${lorasResponse["error"]}` },
-            };
-          }
-          const loras = (lorasResponse.data as Lora[]).map((lora) => ({
-            name: lora.name,
-            alias: lora.alias ?? null,
-          }));
-          return {
-            status: 200,
-            body: { type: "application/json", data: loras },
-          };
-        },
-      ),
-    }),
-
-    "models": createMethodFilter({
-      GET: createEndpoint(
-        { query: null, body: null },
-        async ({ params }) => {
-          const workerInstance = await workerInstanceStore.getById(params.workerId!);
-          if (!workerInstance) {
-            return { status: 404, body: { type: "text/plain", data: `Worker not found` } };
-          }
-          const sdClient = createOpenApiFetch<SdApi.paths>({
-            baseUrl: workerInstance.value.sdUrl,
-            headers: getAuthHeader(workerInstance.value.sdAuth),
-          });
-          const modelsResponse = await sdClient.GET("/sdapi/v1/sd-models", {});
-          if (modelsResponse.error) {
-            return {
-              status: 500,
-              body: {
-                type: "text/plain",
-                data: `Models request failed: ${modelsResponse["error"]}`,
-              },
-            };
-          }
-          const models = modelsResponse.data.map((model) => ({
-            title: model.title,
-            modelName: model.model_name,
-            hash: model.hash,
-            sha256: model.sha256,
-          }));
-          return {
-            status: 200,
-            body: { type: "application/json", data: models },
-          };
-        },
-      ),
-    }),
-  }),
-});
+    },
+  );
 
 export interface Lora {
   name: string;

app/adminStore.ts

@@ -1,24 +1,11 @@
-import { Store } from "indexed_kv";
-import { JsonSchema, jsonType } from "t_rest/server";
+import { Static, t } from "elysia";
 import { db } from "./db.ts";
+import { Tkv } from "../utils/Tkv.ts";
 
-export const adminSchema = {
-  type: "object",
-  properties: {
-    tgUserId: { type: "number" },
-    promotedBy: { type: ["string", "null"] },
-  },
-  required: ["tgUserId", "promotedBy"],
-} as const satisfies JsonSchema;
-
-export type Admin = jsonType<typeof adminSchema>;
-
-type AdminIndices = {
-  tgUserId: number;
-};
-
-export const adminStore = new Store<Admin, AdminIndices>(db, "adminUsers", {
-  indices: {
-    tgUserId: { getValue: (adminUser) => adminUser.tgUserId },
-  },
+export const adminSchema = t.Object({
+  promotedBy: t.Nullable(t.Number()),
 });
+
+export type Admin = Static<typeof adminSchema>;
+
+export const adminStore = new Tkv<["admins", number], Admin>(db);

app/config.ts

@@ -1,49 +1,45 @@
+import { Static, t } from "elysia";
+import { Tkv } from "../utils/Tkv.ts";
 import { db } from "./db.ts";
-import { JsonSchema, jsonType } from "t_rest/server";
 
-export const configSchema = {
-  type: "object",
-  properties: {
-    pausedReason: { type: ["string", "null"] },
-    maxUserJobs: { type: "number" },
-    maxJobs: { type: "number" },
-    defaultParams: {
-      type: "object",
-      properties: {
-        batch_size: { type: "number" },
-        n_iter: { type: "number" },
-        width: { type: "number" },
-        height: { type: "number" },
-        steps: { type: "number" },
-        cfg_scale: { type: "number" },
-        sampler_name: { type: "string" },
-        negative_prompt: { type: "string" },
-      },
-    },
-  },
-  required: ["adminUsernames", "maxUserJobs", "maxJobs", "defaultParams"],
-} as const satisfies JsonSchema;
+export const defaultParamsSchema = t.Partial(t.Object({
+  batch_size: t.Number(),
+  n_iter: t.Number(),
+  width: t.Number(),
+  height: t.Number(),
+  steps: t.Number(),
+  cfg_scale: t.Number(),
+  sampler_name: t.String(),
+  negative_prompt: t.String(),
+}));
 
-export type Config = jsonType<typeof configSchema>;
+export type DefaultParams = Static<typeof defaultParamsSchema>;
+
+export const configSchema = t.Object({
+  pausedReason: t.Nullable(t.String()),
+  maxUserJobs: t.Number(),
+  maxJobs: t.Number(),
+  defaultParams: defaultParamsSchema,
+});
+
+export type Config = Static<typeof configSchema>;
+
+export const configStore = new Tkv<["config"], Config>(db);
+
+const defaultConfig: Config = {
+  pausedReason: null,
+  maxUserJobs: Infinity,
+  maxJobs: Infinity,
+  defaultParams: {},
+};
 
 export async function getConfig(): Promise<Config> {
-  const configEntry = await db.get<Config>(["config"]);
-  const config = configEntry?.value;
-  return {
-    pausedReason: config?.pausedReason ?? null,
-    maxUserJobs: config?.maxUserJobs ?? Infinity,
-    maxJobs: config?.maxJobs ?? Infinity,
-    defaultParams: config?.defaultParams ?? {},
-  };
+  const configEntry = await configStore.get(["config"]);
+  return { ...defaultConfig, ...configEntry.value };
 }
 
-export async function setConfig(newConfig: Partial<Config>): Promise<void> {
-  const oldConfig = await getConfig();
-  const config: Config = {
-    pausedReason: newConfig.pausedReason ?? oldConfig.pausedReason,
-    maxUserJobs: newConfig.maxUserJobs ?? oldConfig.maxUserJobs,
-    maxJobs: newConfig.maxJobs ?? oldConfig.maxJobs,
-    defaultParams: newConfig.defaultParams ?? oldConfig.defaultParams,
-  };
-  await db.set(["config"], config);
+export async function setConfig<K extends keyof Config>(newConfig: Pick<Config, K>): Promise<void> {
+  const configEntry = await configStore.get(["config"]);
+  const config = { ...defaultConfig, ...configEntry.value, ...newConfig };
+  await configStore.atomicSet(["config"], configEntry.versionstamp, config);
 }

app/dailyStatsStore.ts

@@ -1,25 +1,21 @@
 import { hoursToMilliseconds, isSameDay, minutesToMilliseconds } from "date-fns";
 import { UTCDateMini } from "date-fns/utc";
+import { Static, t } from "elysia";
 import { info } from "std/log/mod.ts";
-import { JsonSchema, jsonType } from "t_rest/server";
 import { db } from "./db.ts";
 import { generationStore } from "./generationStore.ts";
-import { kvMemoize } from "./kvMemoize.ts";
+import { kvMemoize } from "../utils/kvMemoize.ts";
 
-export const dailyStatsSchema = {
-  type: "object",
-  properties: {
-    userIds: { type: "array", items: { type: "number" } },
-    imageCount: { type: "number" },
-    stepCount: { type: "number" },
-    pixelCount: { type: "number" },
-    pixelStepCount: { type: "number" },
-    timestamp: { type: "number" },
-  },
-  required: ["userIds", "imageCount", "stepCount", "pixelCount", "pixelStepCount", "timestamp"],
-} as const satisfies JsonSchema;
+export const dailyStatsSchema = t.Object({
+  userIds: t.Array(t.Number()),
+  imageCount: t.Number(),
+  stepCount: t.Number(),
+  pixelCount: t.Number(),
+  pixelStepCount: t.Number(),
+  timestamp: t.Number(),
+});
 
-export type DailyStats = jsonType<typeof dailyStatsSchema>;
+export type DailyStats = Static<typeof dailyStatsSchema>;
 
 export const getDailyStats = kvMemoize(
   db,

app/generationQueue.ts

@@ -46,7 +46,7 @@ export const activeGenerationWorkers = new Map<string, Worker<GenerationJob>>();
 /**
  * Initializes queue workers for each SD instance when they become online.
  */
-export async function processGenerationQueue() {
+export async function processGenerationQueue(): Promise<never> {
   while (true) {
     for await (const workerInstance of workerInstanceStore.listAll()) {
       const activeWorker = activeGenerationWorkers.get(workerInstance.id);
@@ -70,7 +70,8 @@ export async function processGenerationQueue() {
           return response;
         })
         .catch((error) => {
-          workerInstance.update({ lastError: { message: error.message, time: Date.now() } })
+          const cleanedErrorMessage = error.message.replace(/url \([^)]+\)/, "");
+          workerInstance.update({ lastError: { message: cleanedErrorMessage, time: Date.now() } })
             .catch(() => undefined);
           debug(`Worker ${workerInstance.value.key} is down: ${error}`);
         });
@@ -141,15 +142,6 @@ async function processGenerationJob(
   debug(`Generation started for ${formatUserChat(state)}`);
   await updateJob({ state: state });
 
-  // check if bot can post messages in this chat
-  const chat = await bot.api.getChat(state.chat.id);
-  if (
-    (chat.type === "group" || chat.type === "supergroup") &&
-    (!chat.permissions?.can_send_messages || !chat.permissions?.can_send_photos)
-  ) {
-    throw new Error("Bot doesn't have permissions to send photos in this chat");
-  }
-
   // edit the existing status message
   await bot.api.editMessageText(
     state.replyMessage.chat.id,
@@ -240,8 +232,6 @@ async function processGenerationJob(
     if (progressResponse.data.progress > state.progress) {
       state.progress = progressResponse.data.progress;
       await updateJob({ state: state });
-      await bot.api.sendChatAction(state.chat.id, "upload_photo", { maxAttempts: 1 })
-        .catch(() => undefined);
       await bot.api.editMessageText(
         state.replyMessage.chat.id,
         state.replyMessage.message_id,
@@ -289,21 +279,31 @@ async function processGenerationJob(
     info,
   }, { retryCount: 5, retryDelayMs: 10000 });
 
+  const uploadQueueSize = await uploadQueue.getAllJobs().then((jobs) =>
+    jobs.filter((job) => job.status !== "processing").length
+  );
+
   // change status message to uploading images
   await bot.api.editMessageText(
     state.replyMessage.chat.id,
     state.replyMessage.message_id,
-    `Uploading your images...`,
+    uploadQueueSize > 10
+      ? `You are ${formatOrdinal(uploadQueueSize)} in upload queue.`
+      : `Uploading your images...`,
     { maxAttempts: 1 },
   ).catch(() => undefined);
 
+  // send upload photo action
+  await bot.api.sendChatAction(state.chat.id, "upload_photo", { maxAttempts: 1 })
+    .catch(() => undefined);
+
   debug(`Generation finished for ${formatUserChat(state)}`);
 }
 
 /**
  * Handles queue updates and updates the status message.
  */
-export async function updateGenerationQueue() {
+export async function updateGenerationQueue(): Promise<never> {
   while (true) {
     const jobs = await generationQueue.getAllJobs();
 
@@ -313,17 +313,15 @@ export async function updateGenerationQueue() {
         return;
       }
 
-      // spread the updates in time randomly
-      await delay(Math.random() * 3_000);
-
-      await bot.api.editMessageText(
+      return await bot.api.editMessageText(
         job.state.replyMessage.chat.id,
         job.state.replyMessage.message_id,
         `You are ${formatOrdinal(job.place)} in queue.`,
         { maxAttempts: 1 },
-      ).catch(() => undefined);
+      ).catch(() => {});
     }));
 
-    await delay(10_000);
+    // delay between updates based on the number of jobs
+    await delay(Math.min(15_000, Math.max(3_000, jobs.length * 100)));
   }
 }

app/globalStats.ts

@@ -1,23 +1,16 @@
 import { addDays } from "date-fns";
-import { JsonSchema, jsonType } from "t_rest/server";
 import { decodeTime } from "ulid";
 import { getDailyStats } from "./dailyStatsStore.ts";
 import { generationStore } from "./generationStore.ts";
 
-export const globalStatsSchema = {
-  type: "object",
-  properties: {
-    userIds: { type: "array", items: { type: "number" } },
-    imageCount: { type: "number" },
-    stepCount: { type: "number" },
-    pixelCount: { type: "number" },
-    pixelStepCount: { type: "number" },
-    timestamp: { type: "number" },
-  },
-  required: ["userIds", "imageCount", "stepCount", "pixelCount", "pixelStepCount", "timestamp"],
-} as const satisfies JsonSchema;
-
-export type GlobalStats = jsonType<typeof globalStatsSchema>;
+export interface GlobalStats {
+  userIds: number[];
+  imageCount: number;
+  stepCount: number;
+  pixelCount: number;
+  pixelStepCount: number;
+  timestamp: number;
+}
 
 export const globalStats: GlobalStats = await getGlobalStats();
 

app/userDailyStatsStore.ts

@@ -1,24 +1,59 @@
-import { JsonSchema, jsonType } from "t_rest/server";
-import { kvMemoize } from "./kvMemoize.ts";
+import { Static, t } from "elysia";
+import { kvMemoize } from "../utils/kvMemoize.ts";
 import { db } from "./db.ts";
 import { generationStore } from "./generationStore.ts";
+import { hoursToMilliseconds, isSameDay, minutesToMilliseconds } from "date-fns";
+import { UTCDateMini } from "date-fns/utc";
 
-export const userDailyStatsSchema = {
-  type: "object",
-  properties: {
-    imageCount: { type: "number" },
-    pixelCount: { type: "number" },
-    timestamp: { type: "number" },
-  },
-  required: ["imageCount", "pixelCount", "timestamp"],
-} as const satisfies JsonSchema;
+export const userDailyStatsSchema = t.Object({
+  imageCount: t.Number(),
+  pixelCount: t.Number(),
+  pixelStepCount: t.Number(),
+  timestamp: t.Number(),
+});
 
-export type UserDailyStats = jsonType<typeof userDailyStatsSchema>;
+export type UserDailyStats = Static<typeof userDailyStatsSchema>;
 
 export const getUserDailyStats = kvMemoize(
   db,
   ["userDailyStats"],
   async (userId: number, year: number, month: number, day: number): Promise<UserDailyStats> => {
-    throw new Error("Not implemented");
+    let imageCount = 0;
+    let pixelCount = 0;
+    let pixelStepCount = 0;
+
+    for await (
+      const generation of generationStore.listBy("fromId", {
+        after: new Date(Date.UTC(year, month - 1, day)),
+        before: new Date(Date.UTC(year, month - 1, day + 1)),
+        value: userId,
+      })
+    ) {
+      imageCount++;
+      pixelCount += (generation.value.info?.width ?? 0) * (generation.value.info?.height ?? 0);
+      pixelStepCount += (generation.value.info?.width ?? 0) *
+        (generation.value.info?.height ?? 0) *
+        (generation.value.info?.steps ?? 0);
+    }
+
+    return {
+      imageCount,
+      pixelCount,
+      pixelStepCount,
+      timestamp: Date.now(),
+    };
+  },
+  {
+    // expire in 1 minute if was calculated on the same day, otherwise 7-14 days.
+    expireIn: (result, year, month, day) => {
+      const requestDate = new UTCDateMini(year, month - 1, day);
+      const calculatedDate = new UTCDateMini(result.timestamp);
+      return isSameDay(requestDate, calculatedDate)
+        ? minutesToMilliseconds(1)
+        : hoursToMilliseconds(24 * 7 + Math.random() * 24 * 7);
+    },
+    // should cache if the stats are non-zero
+    shouldCache: (result) =>
+      result.imageCount > 0 || result.pixelCount > 0 || result.pixelStepCount > 0,
   },
 );

app/userStatsStore.ts

@@ -1,37 +1,23 @@
 import { minutesToMilliseconds } from "date-fns";
 import { Store } from "indexed_kv";
 import { info } from "std/log/mod.ts";
-import { JsonSchema, jsonType } from "t_rest/server";
+import { Static, t } from "elysia";
 import { db } from "./db.ts";
 import { generationStore } from "./generationStore.ts";
-import { kvMemoize } from "./kvMemoize.ts";
+import { kvMemoize } from "../utils/kvMemoize.ts";
+import { sortBy } from "std/collections/sort_by.ts";
 
-export const userStatsSchema = {
-  type: "object",
-  properties: {
-    userId: { type: "number" },
-    imageCount: { type: "number" },
-    stepCount: { type: "number" },
-    pixelCount: { type: "number" },
-    pixelStepCount: { type: "number" },
-    tagCountMap: {
-      type: "object",
-      additionalProperties: { type: "number" },
-    },
-    timestamp: { type: "number" },
-  },
-  required: [
-    "userId",
-    "imageCount",
-    "stepCount",
-    "pixelCount",
-    "pixelStepCount",
-    "tagCountMap",
-    "timestamp",
-  ],
-} as const satisfies JsonSchema;
+export const userStatsSchema = t.Object({
+  userId: t.Number(),
+  imageCount: t.Number(),
+  stepCount: t.Number(),
+  pixelCount: t.Number(),
+  pixelStepCount: t.Number(),
+  tagCountMap: t.Record(t.String(), t.Number()),
+  timestamp: t.Number(),
+});
 
-export type UserStats = jsonType<typeof userStatsSchema>;
+export type UserStats = Static<typeof userStatsSchema>;
 
 type UserStatsIndices = {
   userId: number;
@@ -59,7 +45,7 @@ export const getUserStats = kvMemoize(
     let stepCount = 0;
     let pixelCount = 0;
     let pixelStepCount = 0;
-    const tagCountMap: Record<string, number> = {};
+    const tagCountMap = new Map<string, number>();
 
     info(`Calculating user stats for ${userId}`);
 
@@ -77,7 +63,7 @@ export const getUserStats = kvMemoize(
         // split on punctuation and newlines
         .split(/[,;.]\s+|\n/)
         // remove `:weight` syntax
-        .map((tag) => tag.replace(/:[\d\.]+/g, " "))
+        .map((tag) => tag.replace(/:[\d\.]+/g, ""))
         // remove `(tag)` and `[tag]` syntax
         .map((tag) => tag.replace(/[()[\]]/g, " "))
         // collapse multiple whitespace to one
@@ -92,17 +78,25 @@ export const getUserStats = kvMemoize(
         [];
 
       for (const tag of tags) {
-        tagCountMap[tag] = (tagCountMap[tag] ?? 0) + 1;
+        const count = tagCountMap.get(tag) ?? 0;
+        tagCountMap.set(tag, count + 1);
       }
     }
 
+    const tagCountObj = Object.fromEntries(
+      sortBy(
+        Array.from(tagCountMap.entries()),
+        ([_tag, count]) => -count,
+      ).filter(([_tag, count]) => count >= 3),
+    );
+
     return {
       userId,
       imageCount,
       stepCount,
       pixelCount,
       pixelStepCount,
-      tagCountMap,
+      tagCountMap: tagCountObj,
       timestamp: Date.now(),
     };
   },

app/workerInstanceStore.ts

@@ -1,37 +1,23 @@
 import { Store } from "indexed_kv";
-import { JsonSchema, jsonType } from "t_rest/server";
+import { Static, t } from "elysia";
 import { db } from "./db.ts";
 
-export const workerInstanceSchema = {
-  type: "object",
-  properties: {
-    // used for counting stats
-    key: { type: "string" },
-    // used for display
-    name: { type: ["string", "null"] },
-    sdUrl: { type: "string" },
-    sdAuth: {
-      type: ["object", "null"],
-      properties: {
-        user: { type: "string" },
-        password: { type: "string" },
-      },
-      required: ["user", "password"],
-    },
-    lastOnlineTime: { type: "number" },
-    lastError: {
-      type: "object",
-      properties: {
-        message: { type: "string" },
-        time: { type: "number" },
-      },
-      required: ["message", "time"],
-    },
-  },
-  required: ["key", "name", "sdUrl", "sdAuth"],
-} as const satisfies JsonSchema;
+export const workerInstanceSchema = t.Object({
+  key: t.String(),
+  name: t.Nullable(t.String()),
+  sdUrl: t.String(),
+  sdAuth: t.Nullable(t.Object({
+    user: t.String(),
+    password: t.String(),
+  })),
+  lastOnlineTime: t.Optional(t.Number()),
+  lastError: t.Optional(t.Object({
+    message: t.String(),
+    time: t.Number(),
+  })),
+});
 
-export type WorkerInstance = jsonType<typeof workerInstanceSchema>;
+export type WorkerInstance = Static<typeof workerInstanceSchema>;
 
 export const workerInstanceStore = new Store<WorkerInstance>(db, "workerInstances", {
   indices: {},

bot/broadcastCommand.ts

@@ -12,9 +12,9 @@ export async function broadcastCommand(ctx: CommandContext<ErisContext>) {
     return ctx.reply("I don't know who you are.");
   }
 
-  const [admin] = await adminStore.getBy("tgUserId", { value: ctx.from.id });
+  const adminEntry = await adminStore.get(["admins", ctx.from.id]);
 
-  if (!admin) {
+  if (!adminEntry.versionstamp) {
     return ctx.reply("Only a bot admin can use this command.");
   }
 

bot/img2imgCommand.ts

@@ -129,7 +129,7 @@ async function img2img(
     chat: ctx.message.chat,
     requestMessage: ctx.message,
     replyMessage: replyMessage,
-  }, { retryCount: 3, repeatDelayMs: 10_000 });
+  }, { priority: 0, retryCount: 3, repeatDelayMs: 10_000 });
 
   debug(`Generation (img2img) enqueued for ${formatUserChat(ctx.message)}`);
 }

bot/mod.ts

@@ -115,7 +115,7 @@ bot.api.setMyDescription(
 bot.api.setMyCommands([
   { command: "txt2img", description: "Generate image from text" },
   { command: "img2img", description: "Generate image from image" },
-  { command: "pnginfo", description: "Show generation parameters of an image" },
+  { command: "pnginfo", description: "Try to extract prompt from raw file" },
   { command: "queue", description: "Show the current queue" },
   { command: "cancel", description: "Cancel all your requests" },
 ]);
@@ -174,6 +174,6 @@ bot.command("crash", () => {
 });
 
 export async function runBot() {
-  const runner = run(bot);
+  const runner = run(bot, { runner: { silent: true } });
   await runner.task();
 }

bot/parsePngInfo.ts

@@ -1,12 +1,24 @@
-import { decode } from "png_chunk_text";
-import extractChunks from "png_chunks_extract";
+import * as ExifReader from "exifreader";
 
-export function getPngInfo(pngData: Uint8Array): string | undefined {
-  return extractChunks(pngData)
-    .filter((chunk) => chunk.name === "tEXt")
-    .map((chunk) => decode(chunk.data))
-    .find((textChunk) => textChunk.keyword === "parameters")
-    ?.text;
+export function getPngInfo(pngData: ArrayBuffer): string | undefined {
+  const info = ExifReader.load(pngData);
+
+  if (info.UserComment?.value && Array.isArray(info.UserComment.value)) {
+    // JPEG image
+    return String.fromCharCode(
+      ...info.UserComment.value
+        .filter((char): char is number => typeof char == "number")
+        .filter((char) => char !== 0),
+    ).replace("UNICODE", "");
+  }
+
+  if (info.parameters?.description) {
+    // PNG image
+    return info.parameters.description;
+  }
+
+  // Unknown image type
+  return undefined;
 }
 
 export interface PngInfo {

bot/pnginfoCommand.ts

@@ -20,9 +20,9 @@ async function pnginfo(ctx: ErisContext, includeRepliedTo: boolean): Promise<voi
   const document = ctx.message?.document ||
     (includeRepliedTo ? ctx.message?.reply_to_message?.document : undefined);
 
-  if (document?.mime_type !== "image/png") {
+  if (document?.mime_type !== "image/png" && document?.mime_type !== "image/jpeg") {
     await ctx.reply(
-      "Please send me a PNG file." +
+      "Please send me a PNG or JPEG file." +
         pnginfoQuestion.messageSuffixMarkdown(),
       omitUndef(
         {
@@ -37,7 +37,14 @@ async function pnginfo(ctx: ErisContext, includeRepliedTo: boolean): Promise<voi
 
   const file = await ctx.api.getFile(document.file_id);
   const buffer = await fetch(file.getUrl()).then((resp) => resp.arrayBuffer());
-  const params = parsePngInfo(getPngInfo(new Uint8Array(buffer)) ?? "");
+  const info = getPngInfo(buffer);
+  if (!info) {
+    return void await ctx.reply(
+      "No info found in file.",
+      omitUndef({ reply_to_message_id: ctx.message?.message_id }),
+    );
+  }
+  const params = parsePngInfo(info, undefined, true);
 
   const paramsText = fmt([
     `${params.prompt}\n`,

bot/txt2imgCommand.ts

@@ -6,6 +6,7 @@ import { generationQueue } from "../app/generationQueue.ts";
 import { formatUserChat } from "../utils/formatUserChat.ts";
 import { ErisContext } from "./mod.ts";
 import { getPngInfo, parsePngInfo, PngInfo } from "./parsePngInfo.ts";
+import { adminStore } from "../app/adminStore.ts";
 
 export const txt2imgQuestion = new StatelessQuestion<ErisContext>(
   "txt2img",
@@ -29,6 +30,7 @@ async function txt2img(ctx: ErisContext, match: string, includeRepliedTo: boolea
   }
 
   const config = await getConfig();
+  let priority = 0;
 
   if (config.pausedReason != null) {
     await ctx.reply(`I'm paused: ${config.pausedReason || "No reason given"}`, {
@@ -37,20 +39,26 @@ async function txt2img(ctx: ErisContext, match: string, includeRepliedTo: boolea
     return;
   }
 
-  const jobs = await generationQueue.getAllJobs();
-  if (jobs.length >= config.maxJobs) {
-    await ctx.reply(`The queue is full. Try again later. (Max queue size: ${config.maxJobs})`, {
-      reply_to_message_id: ctx.message?.message_id,
-    });
-    return;
-  }
+  const adminEntry = await adminStore.get(["admins", ctx.from.id]);
 
-  const userJobs = jobs.filter((job) => job.state.from.id === ctx.message?.from?.id);
-  if (userJobs.length >= config.maxUserJobs) {
-    await ctx.reply(`You already have ${userJobs.length} jobs in queue. Try again later.`, {
-      reply_to_message_id: ctx.message?.message_id,
-    });
-    return;
+  if (adminEntry.versionstamp) {
+    priority = 1;
+  } else {
+    const jobs = await generationQueue.getAllJobs();
+    if (jobs.length >= config.maxJobs) {
+      await ctx.reply(`The queue is full. Try again later. (Max queue size: ${config.maxJobs})`, {
+        reply_to_message_id: ctx.message?.message_id,
+      });
+      return;
+    }
+
+    const userJobs = jobs.filter((job) => job.state.from.id === ctx.message?.from?.id);
+    if (userJobs.length >= config.maxUserJobs) {
+      await ctx.reply(`You already have ${userJobs.length} jobs in the queue. Try again later.`, {
+        reply_to_message_id: ctx.message?.message_id,
+      });
+      return;
+    }
   }
 
   let params: Partial<PngInfo> = {};
@@ -60,17 +68,26 @@ async function txt2img(ctx: ErisContext, match: string, includeRepliedTo: boolea
   if (includeRepliedTo && repliedToMsg?.document?.mime_type === "image/png") {
     const file = await ctx.api.getFile(repliedToMsg.document.file_id);
     const buffer = await fetch(file.getUrl()).then((resp) => resp.arrayBuffer());
-    params = parsePngInfo(getPngInfo(new Uint8Array(buffer)) ?? "", params);
+    params = parsePngInfo(getPngInfo(buffer) ?? "", params);
   }
 
   const repliedToText = repliedToMsg?.text || repliedToMsg?.caption;
-  if (includeRepliedTo && repliedToText) {
+  const isReply = includeRepliedTo && repliedToText;
+
+  if (isReply) {
     // TODO: remove bot command from replied to text
     params = parsePngInfo(repliedToText, params);
   }
 
   params = parsePngInfo(match, params, true);
 
+  if (isReply) {
+    const parsedInfo = parsePngInfo(repliedToText, undefined, true);
+    if (parsedInfo.prompt !== params.prompt) {
+      params.seed = parsedInfo.seed ?? -1;
+    }
+  }
+
   if (!params.prompt) {
     await ctx.reply(
       "Please tell me what you want to see." +
@@ -94,7 +111,7 @@ async function txt2img(ctx: ErisContext, match: string, includeRepliedTo: boolea
     chat: ctx.message.chat,
     requestMessage: ctx.message,
     replyMessage: replyMessage,
-  }, { retryCount: 3, retryDelayMs: 10_000 });
+  }, { retryCount: 3, retryDelayMs: 10_000, priority: priority });
 
   debug(`Generation (txt2img) enqueued for ${formatUserChat(ctx.message)}`);
 }

deno.json

@@ -11,6 +11,10 @@
     "async": "https://deno.land/x/async@v2.0.2/mod.ts",
     "date-fns": "https://cdn.skypack.dev/date-fns@2.30.0?dts",
     "date-fns/utc": "https://cdn.skypack.dev/@date-fns/utc@1.1.0?dts",
+    "elysia": "https://esm.sh/elysia@0.7.21?dev",
+    "elysia/eden": "https://esm.sh/@elysiajs/eden@0.7.4?external=elysia&dev",
+    "elysia/swagger": "https://esm.sh/@elysiajs/swagger@0.7.4?external=elysia&dev",
+    "exifreader": "https://esm.sh/exifreader@4.14.1",
     "file_type": "https://esm.sh/file-type@18.5.0",
     "grammy": "https://lib.deno.dev/x/grammy@1/mod.ts",
     "grammy_autoquote": "https://lib.deno.dev/x/grammy_autoquote@1/mod.ts",
@@ -23,8 +27,6 @@
     "kvfs": "https://deno.land/x/kvfs@v0.1.0/mod.ts",
     "kvmq": "https://deno.land/x/kvmq@v0.3.0/mod.ts",
     "openapi_fetch": "https://esm.sh/openapi-fetch@0.7.6",
-    "png_chunk_text": "https://esm.sh/png-chunk-text@1.0.0",
-    "png_chunks_extract": "https://esm.sh/png-chunks-extract@1.0.0",
     "react": "https://esm.sh/react@18.2.0?dev",
     "react-dom/client": "https://esm.sh/react-dom@18.2.0/client?external=react&dev",
     "react-flip-move": "https://esm.sh/react-flip-move@3.0.5?external=react&dev",
@@ -41,8 +43,6 @@
     "std/path/": "https://deno.land/std@0.204.0/path/",
     "swr": "https://esm.sh/swr@2.2.4?external=react&dev",
     "swr/mutation": "https://esm.sh/swr@2.2.4/mutation?external=react&dev",
-    "t_rest/client": "https://esm.sh/ty-rest@0.4.1/client",
-    "t_rest/server": "https://esm.sh/ty-rest@0.4.1/server",
     "twind/core": "https://esm.sh/@twind/core@1.1.3",
     "twind/preset-tailwind": "https://esm.sh/@twind/preset-tailwind@1.1.4",
     "ulid": "https://deno.land/x/ulid@v0.3.0/mod.ts"
@@ -55,9 +55,9 @@
     }
   },
   "tasks": {
-    "check": "deno check --unstable main.ts && deno check --unstable ui/main.tsx",
+    "check": "deno check --unstable-kv main.ts && deno check --unstable-kv ui/main.tsx",
     "generate": "deno run npm:openapi-typescript http://localhost:7861/openapi.json -o app/sdApi.ts",
-    "start": "deno run --unstable --allow-env --allow-read --allow-write --allow-net main.ts",
-    "test": "deno test --unstable"
+    "start": "deno run --unstable-kv --allow-env --allow-read=. --allow-write=db --allow-net main.ts",
+    "test": "deno test"
   }
 }

deno.lock

@@ -1,368 +0,0 @@
-{
-  "version": "3",
-  "packages": {
-    "specifiers": {
-      "npm:@types/node": "npm:@types/node@18.16.19"
-    },
-    "npm": {
-      "@types/node@18.16.19": {
-        "integrity": "sha512-IXl7o+R9iti9eBW4Wg2hx1xQDig183jj7YLn8F7udNceyfkbn1ZxmzZXuak20gR40D7pIkIY1kYGx5VIGbaHKA==",
-        "dependencies": {}
-      }
-    }
-  },
-  "redirects": {
-    "https://cdn.skypack.dev/-/@date-fns/utc@v1.1.0-EKCmNY9452DyFBJfVVmZ/dist=es2019,mode=types/date.d.ts": "https://cdn.skypack.dev/-/@date-fns/utc@v1.1.0-EKCmNY9452DyFBJfVVmZ/dist=es2019,mode=types/date/index.d.ts",
-    "https://esm.sh/@grammyjs/types@2": "https://esm.sh/@grammyjs/types@2.12.1",
-    "https://esm.sh/@grammyjs/types@v2": "https://esm.sh/@grammyjs/types@2.0.0",
-    "https://esm.sh/@swc/core@1.2.212/types.d.ts": "https://esm.sh/v133/@swc/core@1.2.212/types.d.ts",
-    "https://esm.sh/telegram-format@2": "https://esm.sh/telegram-format@2.1.0",
-    "https://esm.sh/v128/@types/react@~18.2/index.d.ts": "https://esm.sh/v128/@types/react@18.2.25/index.d.ts",
-    "https://esm.sh/v133/@types/png-chunk-text@~1.0/index.d.ts": "https://esm.sh/v133/@types/png-chunk-text@1.0.2/index.d.ts",
-    "https://esm.sh/v133/@types/png-chunks-extract@~1.0/index.d.ts": "https://esm.sh/v133/@types/png-chunks-extract@1.0.1/index.d.ts",
-    "https://esm.sh/v133/@types/react-dom@~18.2/X-ZS9yZWFjdA/client~.d.ts": "https://esm.sh/v133/@types/react-dom@18.2.14/X-ZS9yZWFjdA/client~.d.ts",
-    "https://lib.deno.dev/x/grammy@1/mod.ts": "https://deno.land/x/grammy@v1.19.2/mod.ts",
-    "https://lib.deno.dev/x/grammy@^1.0/mod.ts": "https://deno.land/x/grammy@v1.19.2/mod.ts",
-    "https://lib.deno.dev/x/grammy@v1/mod.ts": "https://deno.land/x/grammy@v1.19.2/mod.ts",
-    "https://lib.deno.dev/x/grammy@v1/types.ts": "https://deno.land/x/grammy@v1.19.2/types.ts",
-    "https://lib.deno.dev/x/grammy_files@1/mod.ts": "https://deno.land/x/grammy_files@v1.0.4/mod.ts",
-    "https://lib.deno.dev/x/grammy_parse_mode@1/mod.ts": "https://deno.land/x/grammy_parse_mode@1.8.1/mod.ts",
-    "https://lib.deno.dev/x/grammy_runner@2/mod.ts": "https://deno.land/x/grammy_runner@v2.0.3/mod.ts",
-    "https://lib.deno.dev/x/grammy_stateless_question_alpha@3/mod.ts": "https://deno.land/x/grammy_stateless_question_alpha@v3.0.5/mod.ts",
-    "https://lib.deno.dev/x/grammy_types@3/mod.ts": "https://deno.land/x/grammy_types@v3.3.0/mod.ts"
-  },
-  "remote": {
-    "https://cdn.skypack.dev/-/@date-fns/utc@v1.1.0-EKCmNY9452DyFBJfVVmZ/dist=es2019,mode=imports/optimized/@date-fns/utc.js": "f3566d499010a4872640fc2c5f539e98d490d794f43e597a2da9aadf03b2c050",
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-    "https://esm.sh/v133/peek-readable@5.0.0/denonext/peek-readable.mjs": "5e799ea86e9c501873f687eda9c891a75ed55ba666b5dd822eaa3d28a8a5f2b1",
-    "https://esm.sh/v133/png-chunk-text@1.0.0/denonext/png-chunk-text.mjs": "e8bb89595ceab2603531693319da08a9dd90d51169437de47a73cf8bac7baa11",
-    "https://esm.sh/v133/png-chunks-extract@1.0.0/denonext/png-chunks-extract.mjs": "2a9b62c9478e2bb79f7ccc9725be3b79afa473089ac978d8fd14a8b0cba7c040",
-    "https://esm.sh/v133/react-dom@18.2.0/X-ZS9yZWFjdA/denonext/client.development.js": "ebaa7a1fce9f40b8abdae0daab06348b7bbdf5a90e1e60d2116b45d3577f8fa4",
-    "https://esm.sh/v133/react-dom@18.2.0/X-ZS9yZWFjdA/denonext/react-dom.development.mjs": "b7e7937e4f3446bb2b6db5f73ae20d2b18a4116330486680c6c6f610f7d85f27",
-    "https://esm.sh/v133/react-flip-move@3.0.5/X-ZS9yZWFjdA/denonext/react-flip-move.development.mjs": "4644ea8644c7d6ccb3563fec092d05b82c647da4981e878b64fd06ab58d6cfc5",
-    "https://esm.sh/v133/react-intl@6.4.7/X-ZS9yZWFjdA/denonext/react-intl.development.mjs": "866e2105594ecf772144262d215ffd3245f09e8f1b14e97b5f13b4df8d52c419",
-    "https://esm.sh/v133/react-is@16.13.1/X-ZS9yZWFjdA/denonext/react-is.development.mjs": "9e2c3272e256b176f71660a52bf0f8a079babbd01e680de070d47ed51a9319bd",
-    "https://esm.sh/v133/react-router-dom@6.16.0/X-ZS9yZWFjdA/denonext/react-router-dom.development.mjs": "0b2d33abc84446dcf3430a42a1a7935b9a49f81192cba22b1263a884c6edf22d",
-    "https://esm.sh/v133/react-router@6.16.0/X-ZS9yZWFjdA/denonext/react-router.development.mjs": "e539a1882ef472de5bd8e4325a54e0f0d36a45a0bf53d4ffed09353225a2cf95",
-    "https://esm.sh/v133/readable-stream@3.6.2/denonext/readable-stream.mjs": "4d368fe1058f90ecfb37581103cae1646123180b8fc4aa77157fd733aed24e4a",
-    "https://esm.sh/v133/readable-web-to-node-stream@3.0.2/denonext/readable-web-to-node-stream.mjs": "8e7f8b7139f71b1cf94cb4d4772239755e996d88bcefb462f03fd6a0b8b4cd83",
-    "https://esm.sh/v133/scheduler@0.23.0/X-ZS9yZWFjdA/denonext/scheduler.development.mjs": "b6c8f513ecc4afb69b0c5c78a7674bb1c78f7e003946c6c8c655778d81d775db",
-    "https://esm.sh/v133/strtok3@7.0.0/denonext/core.js": "4934052fd9086facbb9436e905dfdee19ee27a43d0b0a8fca39648e833324577",
-    "https://esm.sh/v133/swr@2.2.4/X-ZS9yZWFjdA/denonext/_internal.development.js": "e64b6b30de0ddca08078301c3129c608ab8f2cc6279c704c462ebe3022e81275",
-    "https://esm.sh/v133/swr@2.2.4/X-ZS9yZWFjdA/denonext/swr.development.mjs": "d6be45253b10e1f6c2bd35f035530d5ac0e7c34c716508db131a143fb9818a82",
-    "https://esm.sh/v133/telegram-format@2.1.0/denonext/telegram-format.mjs": "f5b6a6df788e9b462ce3e0d3db8fb3446bfa5252440b9878a91496ca6fb2d693",
-    "https://esm.sh/v133/token-types@5.0.1/denonext/token-types.mjs": "eb8ef626bdfc077ae8f9b6c0842e3bdae25b4867dd9d38b7b1b5f003819a06d3",
-    "https://esm.sh/v133/tslib@2.6.2/X-ZS9yZWFjdA/denonext/tslib.development.mjs": "40dea6e88a1261c5c96a641d73276ffecae3f2d23b9a93d1c5294125f4474cdb",
-    "https://esm.sh/v133/ty-rest@0.4.0/denonext/client.js": "dd2a1f04d17c87b395d7a39789e41477e854afcfb66559be08348ad76625615b",
-    "https://esm.sh/v133/ty-rest@0.4.0/denonext/server.js": "98f33c86c304659703f3a1294ae93e78920d8de303dc0f4e360edd717a7bc667",
-    "https://esm.sh/v133/ty-rest@0.4.1/denonext/client.js": "466aeedd7bb139c85fb3051f0b7cecaf3e3afac98b4825b98a480f8a127692ed",
-    "https://esm.sh/v133/ty-rest@0.4.1/denonext/server.js": "00be1165ac96313b077629556a1587d4662f4e23bb0e815b945cc95cd3582370",
-    "https://esm.sh/v133/use-local-storage@3.0.0/X-ZS9yZWFjdA/denonext/use-local-storage.development.mjs": "1fdc00893fe7dac56e95e2817e05d413b674f5cb5a1c6afd8994e25c9e2a56c8",
-    "https://esm.sh/v133/use-sync-external-store@1.2.0/X-ZS9yZWFjdA/denonext/shim.development.js": "5388baf48494f5abe76f8a4a30810c48e828b52f1298826aa9a3f3378e2b533f",
-    "https://esm.sh/v133/util-deprecate@1.0.2/denonext/util-deprecate.mjs": "f69f67cf655c38428b0934e0f7c865c055834a87cc3866b629d6b2beb21005e9"
-  }
-}

ui/AdminsPage.tsx

@@ -11,18 +11,18 @@ export function AdminsPage(props: { sessionId: string | null }) {
   const addDialogRef = useRef<HTMLDialogElement>(null);
 
   const getSession = useSWR(
-    sessionId ? ["sessions/{sessionId}", "GET", { params: { sessionId } }] as const : null,
+    sessionId ? ["/sessions/:sessionId", { params: { sessionId } }] as const : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
   const getUser = useSWR(
     getSession.data?.userId
-      ? ["users/{userId}", "GET", { params: { userId: String(getSession.data.userId) } }] as const
+      ? ["/users/:userId", { params: { userId: String(getSession.data.userId) } }] as const
       : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
 
   const getAdmins = useSWR(
-    ["admins", "GET", {}] as const,
+    ["/admins", { method: "GET" }] as const,
     (args) => fetchApi(...args).then(handleResponse),
   );
 
@@ -32,14 +32,10 @@ export function AdminsPage(props: { sessionId: string | null }) {
         <button
           className="button-filled"
           onClick={() => {
-            mutate(
-              (key) => Array.isArray(key) && key[0] === "admins",
-              async () =>
-                fetchApi("admins/promote_self", "POST", {
-                  query: { sessionId: sessionId ?? "" },
-                }).then(handleResponse),
-              { populateCache: false },
-            );
+            fetchApi("/admins/promote_self", {
+              method: "POST",
+              query: { sessionId: sessionId ?? "" },
+            }).then(handleResponse).then(() => mutate(() => true));
           }}
         >
           Promote me to admin
@@ -48,14 +44,20 @@ export function AdminsPage(props: { sessionId: string | null }) {
 
       {getAdmins.data?.length
         ? (
-          <ul className="my-4 flex flex-col gap-2">
+          <ul className="flex flex-col gap-2">
             {getAdmins.data.map((admin) => (
-              <AdminListItem key={admin.id} admin={admin} sessionId={sessionId} />
+              <AdminListItem key={admin.tgUserId} admin={admin} sessionId={sessionId} />
             ))}
           </ul>
         )
         : getAdmins.data?.length === 0
-        ? <p>No admins</p>
+        ? (
+          <ul className="flex flex-col gap-2">
+            <li className="flex flex-col gap-2 rounded-md bg-zinc-100 dark:bg-zinc-800 p-2">
+              <p key="no-admins" className="text-center text-gray-500">No admins.</p>
+            </li>
+          </ul>
+        )
         : getAdmins.error
         ? <p className="alert">Loading admins failed</p>
         : <div className="spinner self-center" />}
@@ -93,20 +95,13 @@ function AddAdminDialog(props: {
         onSubmit={(e) => {
           e.preventDefault();
           const data = new FormData(e.target as HTMLFormElement);
-          mutate(
-            (key) => Array.isArray(key) && key[0] === "admins",
-            async () =>
-              fetchApi("admins", "POST", {
-                query: { sessionId: sessionId! },
-                body: {
-                  type: "application/json",
-                  data: {
-                    tgUserId: Number(data.get("tgUserId") as string),
-                  },
-                },
-              }).then(handleResponse),
-            { populateCache: false },
-          );
+          fetchApi("/admins", {
+            method: "POST",
+            query: { sessionId: sessionId! },
+            body: {
+              tgUserId: Number(data.get("tgUserId") as string),
+            },
+          }).then(handleResponse).then(() => mutate(() => true));
           dialogRef.current?.close();
         }}
       >
@@ -146,17 +141,17 @@ function AdminListItem(props: { admin: AdminData; sessionId: string | null }) {
   const deleteDialogRef = useRef<HTMLDialogElement>(null);
 
   const getAdminUser = useSWR(
-    ["users/{userId}", "GET", { params: { userId: String(admin.tgUserId) } }] as const,
+    ["/users/:userId", { params: { userId: String(admin.tgUserId) } }] as const,
     (args) => fetchApi(...args).then(handleResponse),
   );
 
   const getSession = useSWR(
-    sessionId ? ["sessions/{sessionId}", "GET", { params: { sessionId } }] as const : null,
+    sessionId ? ["/sessions/:sessionId", { params: { sessionId } }] as const : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
   const getUser = useSWR(
     getSession.data?.userId
-      ? ["users/{userId}", "GET", { params: { userId: String(getSession.data.userId) } }] as const
+      ? ["/users/:userId", { params: { userId: String(getSession.data.userId) } }] as const
       : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
@@ -164,7 +159,7 @@ function AdminListItem(props: { admin: AdminData; sessionId: string | null }) {
   return (
     <li className="flex flex-col gap-2 rounded-md bg-zinc-100 dark:bg-zinc-800 p-2">
       <p className="font-bold">
-        {getAdminUser.data?.first_name ?? admin.id} {getAdminUser.data?.last_name}{" "}
+        {getAdminUser.data?.first_name ?? admin.tgUserId} {getAdminUser.data?.last_name}{" "}
         {getAdminUser.data?.username
           ? (
             <a href={`https://t.me/${getAdminUser.data.username}`} className="link">
@@ -192,7 +187,7 @@ function AdminListItem(props: { admin: AdminData; sessionId: string | null }) {
       )}
       <DeleteAdminDialog
         dialogRef={deleteDialogRef}
-        adminId={admin.id}
+        adminId={admin.tgUserId}
         sessionId={sessionId}
       />
     </li>
@@ -201,7 +196,7 @@ function AdminListItem(props: { admin: AdminData; sessionId: string | null }) {
 
 function DeleteAdminDialog(props: {
   dialogRef: React.RefObject<HTMLDialogElement>;
-  adminId: string;
+  adminId: number;
   sessionId: string | null;
 }) {
   const { dialogRef, adminId, sessionId } = props;
@@ -217,15 +212,12 @@ function DeleteAdminDialog(props: {
         className="flex flex-col gap-4 p-4"
         onSubmit={(e) => {
           e.preventDefault();
-          mutate(
-            (key) => Array.isArray(key) && key[0] === "admins",
-            async () =>
-              fetchApi("admins/{adminId}", "DELETE", {
-                query: { sessionId: sessionId! },
-                params: { adminId: adminId },
-              }).then(handleResponse),
-            { populateCache: false },
-          );
+
+          fetchApi("/admins/:adminId", {
+            method: "DELETE",
+            query: { sessionId: sessionId! },
+            params: { adminId: String(adminId) },
+          }).then(handleResponse).then(() => mutate(() => true));
           dialogRef.current?.close();
         }}
       >

ui/App.tsx

@@ -16,10 +16,12 @@ export function App() {
   // initialize a new session when there is no session ID
   useEffect(() => {
     if (!sessionId) {
-      fetchApi("sessions", "POST", {}).then(handleResponse).then((session) => {
-        console.log("Initialized session", session.id);
-        setSessionId(session.id);
-      });
+      fetchApi("/sessions", { method: "POST" }).then((resp) => resp).then(handleResponse).then(
+        (session) => {
+          console.log("Initialized session", session.id);
+          setSessionId(session.id);
+        },
+      );
     }
   }, [sessionId]);
 

ui/AppHeader.tsx

@@ -2,7 +2,7 @@ import React, { ReactNode } from "react";
 import { NavLink } from "react-router-dom";
 import useSWR from "swr";
 import { cx } from "twind/core";
-import { fetchApi, handleResponse } from "./apiClient.ts";
+import { API_URL, fetchApi, handleResponse } from "./apiClient.ts";
 
 function NavTab(props: { to: string; children: ReactNode }) {
   return (
@@ -23,30 +23,42 @@ export function AppHeader(props: {
   const { className, sessionId, onLogOut } = props;
 
   const getSession = useSWR(
-    sessionId ? ["sessions/{sessionId}", "GET", { params: { sessionId } }] as const : null,
+    sessionId ? ["/sessions/:sessionId", { method: "GET", params: { sessionId } }] as const : null,
     (args) => fetchApi(...args).then(handleResponse),
     { onError: () => onLogOut() },
   );
 
   const getUser = useSWR(
     getSession.data?.userId
-      ? ["users/{userId}", "GET", { params: { userId: String(getSession.data.userId) } }] as const
+      ? ["/users/:userId", {
+        method: "GET",
+        params: { userId: String(getSession.data.userId) },
+      }] as const
       : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
 
   const getBot = useSWR(
-    ["bot", "GET", {}] as const,
+    ["/bot", { method: "GET" }] as const,
     (args) => fetchApi(...args).then(handleResponse),
   );
 
   const getUserPhoto = useSWR(
     getSession.data?.userId
-      ? ["users/{userId}/photo", "GET", {
+      ? ["/users/:userId/photo", {
+        method: "GET",
         params: { userId: String(getSession.data.userId) },
       }] as const
       : null,
-    (args) => fetchApi(...args).then(handleResponse).then((blob) => URL.createObjectURL(blob)),
+    () =>
+      // elysia fetch can't download file
+      fetch(`${API_URL}/users/${getSession.data?.userId}/photo`)
+        .then((response) => {
+          if (!response.ok) throw new Error(response.statusText);
+          return response;
+        })
+        .then((response) => response.blob())
+        .then((blob) => blob ? URL.createObjectURL(blob) : null),
   );
 
   return (

ui/QueuePage.tsx

@@ -7,7 +7,7 @@ import { fetchApi, handleResponse } from "./apiClient.ts";
 
 export function QueuePage() {
   const getJobs = useSWR(
-    ["jobs", "GET", {}] as const,
+    ["/jobs", {}] as const,
     (args) => fetchApi(...args).then(handleResponse),
     { refreshInterval: 2000 },
   );
@@ -15,36 +15,43 @@ export function QueuePage() {
   return (
     <FlipMove
       typeName={"ul"}
-      className="flex flex-col items-stretch gap-2 p-2 bg-zinc-200 dark:bg-zinc-800 rounded-xl"
+      className="flex flex-col items-stretch gap-2 p-2 bg-zinc-200 dark:bg-zinc-800 rounded-md"
       enterAnimation="fade"
       leaveAnimation="fade"
     >
-      {getJobs.data?.map((job) => (
-        <li
-          className="flex items-baseline gap-2 bg-zinc-100 dark:bg-zinc-700 px-2 py-1 rounded-xl"
-          key={job.id.join("/")}
-        >
-          <span className="">
-            {job.place}.
-          </span>
-          <span>{getFlagEmoji(job.state.from.language_code)}</span>
-          <strong>{job.state.from.first_name} {job.state.from.last_name}</strong>
-          {job.state.from.username
-            ? (
-              <a className="link" href={`https://t.me/${job.state.from.username}`} target="_blank">
-                @{job.state.from.username}
-              </a>
-            )
-            : null}
-          <span className="flex-grow self-center h-full">
-            {job.state.progress != null &&
-              <Progress className="w-full h-full" value={job.state.progress} />}
-          </span>
-          <span className="text-sm text-zinc-500 dark:text-zinc-400">
-            {job.state.workerInstanceKey}
-          </span>
-        </li>
-      ))}
+      {getJobs.data && getJobs.data.length === 0
+        ? <li key="no-jobs" className="text-center text-gray-500">Queue is empty.</li>
+        : (
+          getJobs.data?.map((job) => (
+            <li
+              className="flex items-baseline gap-2 bg-zinc-100 dark:bg-zinc-700 px-2 py-1 rounded-md"
+              key={job.id}
+            >
+              <span className="">{job.place}.</span>
+              <span>{getFlagEmoji(job.state.from.language_code ?? undefined)}</span>
+              <strong>{job.state.from.first_name} {job.state.from.last_name}</strong>
+              {job.state.from.username
+                ? (
+                  <a
+                    className="link"
+                    href={`https://t.me/${job.state.from.username}`}
+                    target="_blank"
+                  >
+                    @{job.state.from.username}
+                  </a>
+                )
+                : null}
+              <span className="flex-grow self-center h-full">
+                {job.state.progress != null && (
+                  <Progress className="w-full h-full" value={job.state.progress} />
+                )}
+              </span>
+              <span className="text-sm text-zinc-500 dark:text-zinc-400">
+                {job.state.workerInstanceKey}
+              </span>
+            </li>
+          ))
+        )}
     </FlipMove>
   );
 }

ui/SettingsPage.tsx

@@ -2,22 +2,23 @@ import React, { useState } from "react";
 import useSWR from "swr";
 import { cx } from "twind/core";
 import { fetchApi, handleResponse } from "./apiClient.ts";
+import { omitUndef } from "../utils/omitUndef.ts";
 
 export function SettingsPage(props: { sessionId: string | null }) {
   const { sessionId } = props;
 
   const getSession = useSWR(
-    sessionId ? ["sessions/{sessionId}", "GET", { params: { sessionId } }] as const : null,
+    sessionId ? ["/sessions/:sessionId", { params: { sessionId } }] as const : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
   const getUser = useSWR(
     getSession.data?.userId
-      ? ["users/{userId}", "GET", { params: { userId: String(getSession.data.userId) } }] as const
+      ? ["/users/:userId", { params: { userId: String( getSession.data.userId) } }] as const
       : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
   const getParams = useSWR(
-    ["settings/params", "GET", {}] as const,
+    ["/settings/params", {}] as const,
     (args) => fetchApi(...args).then(handleResponse),
   );
   const [newParams, setNewParams] = useState<Partial<typeof getParams.data>>({});
@@ -29,9 +30,10 @@ export function SettingsPage(props: { sessionId: string | null }) {
       onSubmit={(e) => {
         e.preventDefault();
         getParams.mutate(() =>
-          fetchApi("settings/params", "PATCH", {
+          fetchApi("/settings/params", {
+            method: "PATCH",
             query: { sessionId: sessionId ?? "" },
-            body: { type: "application/json", data: newParams ?? {} },
+            body: omitUndef(newParams ?? {}),
           }).then(handleResponse)
         )
           .then(() => setNewParams({}))

ui/StatsPage.tsx

@@ -5,7 +5,7 @@ import { Counter } from "./Counter.tsx";
 
 export function StatsPage() {
   const getGlobalStats = useSWR(
-    ["stats", "GET", {}] as const,
+    ["/stats", {}] as const,
     (args) => fetchApi(...args).then(handleResponse),
     { refreshInterval: 2_000 },
   );

ui/WorkersPage.tsx

@@ -1,7 +1,7 @@
-import React, { RefObject, useRef, useState } from "react";
+import React, { RefObject, useRef } from "react";
 import { FormattedRelativeTime } from "react-intl";
 import useSWR, { useSWRConfig } from "swr";
-import { WorkerData } from "../api/workersRoute.ts";
+import { WorkerResponse } from "../api/workersRoute.ts";
 import { Counter } from "./Counter.tsx";
 import { fetchApi, handleResponse } from "./apiClient.ts";
 
@@ -11,18 +11,18 @@ export function WorkersPage(props: { sessionId: string | null }) {
   const addDialogRef = useRef<HTMLDialogElement>(null);
 
   const getSession = useSWR(
-    sessionId ? ["sessions/{sessionId}", "GET", { params: { sessionId } }] as const : null,
+    sessionId ? ["/sessions/:sessionId", { params: { sessionId } }] as const : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
   const getUser = useSWR(
     getSession.data?.userId
-      ? ["users/{userId}", "GET", { params: { userId: String(getSession.data.userId) } }] as const
+      ? ["/users/:userId", { params: { userId: String(getSession.data.userId) } }] as const
       : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
 
   const getWorkers = useSWR(
-    ["workers", "GET", {}] as const,
+    ["/workers", { method: "GET" }] as const,
     (args) => fetchApi(...args).then(handleResponse),
     { refreshInterval: 5000 },
   );
@@ -31,14 +31,20 @@ export function WorkersPage(props: { sessionId: string | null }) {
     <>
       {getWorkers.data?.length
         ? (
-          <ul className="my-4 flex flex-col gap-2">
+          <ul className="flex flex-col gap-2">
             {getWorkers.data?.map((worker) => (
               <WorkerListItem key={worker.id} worker={worker} sessionId={sessionId} />
             ))}
           </ul>
         )
         : getWorkers.data?.length === 0
-        ? <p>No workers</p>
+        ? (
+          <ul className="flex flex-col gap-2">
+            <li className="flex flex-col gap-2 rounded-md bg-zinc-100 dark:bg-zinc-800 p-2">
+              <p key="no-workers" className="text-center text-gray-500">No workers.</p>
+            </li>
+          </ul>
+        )
         : getWorkers.error
         ? <p className="alert">Loading workers failed</p>
         : <div className="spinner self-center" />}
@@ -82,23 +88,16 @@ function AddWorkerDialog(props: {
           const user = data.get("user") as string;
           const password = data.get("password") as string;
           console.log(key, name, user, password);
-          mutate(
-            (key) => Array.isArray(key) && key[0] === "workers",
-            async () =>
-              fetchApi("workers", "POST", {
-                query: { sessionId: sessionId! },
-                body: {
-                  type: "application/json",
-                  data: {
-                    key,
-                    name: name || null,
-                    sdUrl,
-                    sdAuth: user && password ? { user, password } : null,
-                  },
-                },
-              }).then(handleResponse),
-            { populateCache: false },
-          );
+          fetchApi("/workers", {
+            method: "POST",
+            query: { sessionId: sessionId! },
+            body: {
+              key,
+              name: name || null,
+              sdUrl,
+              sdAuth: user && password ? { user, password } : null,
+            },
+          }).then(handleResponse).then(() => mutate(() => true));
           dialogRef.current?.close();
         }}
       >
@@ -184,7 +183,7 @@ function AddWorkerDialog(props: {
 }
 
 function WorkerListItem(props: {
-  worker: WorkerData;
+  worker: WorkerResponse;
   sessionId: string | null;
 }) {
   const { worker, sessionId } = props;
@@ -192,12 +191,12 @@ function WorkerListItem(props: {
   const deleteDialogRef = useRef<HTMLDialogElement>(null);
 
   const getSession = useSWR(
-    sessionId ? ["sessions/{sessionId}", "GET", { params: { sessionId } }] as const : null,
+    sessionId ? ["/sessions/:sessionId", { params: { sessionId } }] as const : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
   const getUser = useSWR(
     getSession.data?.userId
-      ? ["users/{userId}", "GET", { params: { userId: String(getSession.data.userId) } }] as const
+      ? ["/users/:userId", { params: { userId: String(getSession.data.userId) } }] as const
       : null,
     (args) => fetchApi(...args).then(handleResponse),
   );
@@ -290,21 +289,14 @@ function EditWorkerDialog(props: {
           const user = data.get("user") as string;
           const password = data.get("password") as string;
           console.log(user, password);
-          mutate(
-            (key) => Array.isArray(key) && key[0] === "workers",
-            async () =>
-              fetchApi("workers/{workerId}", "PATCH", {
-                params: { workerId: workerId },
-                query: { sessionId: sessionId! },
-                body: {
-                  type: "application/json",
-                  data: {
-                    sdAuth: user && password ? { user, password } : null,
-                  },
-                },
-              }).then(handleResponse),
-            { populateCache: false },
-          );
+          fetchApi("/workers/:workerId", {
+            method: "PATCH",
+            params: { workerId: workerId },
+            query: { sessionId: sessionId! },
+            body: {
+              sdAuth: user && password ? { user, password } : null,
+            },
+          }).then(handleResponse).then(() => mutate(() => true));
           dialogRef.current?.close();
         }}
       >
@@ -365,15 +357,11 @@ function DeleteWorkerDialog(props: {
         className="flex flex-col gap-4 p-4"
         onSubmit={(e) => {
           e.preventDefault();
-          mutate(
-            (key) => Array.isArray(key) && key[0] === "workers",
-            async () =>
-              fetchApi("workers/{workerId}", "DELETE", {
-                params: { workerId: workerId },
-                query: { sessionId: sessionId! },
-              }).then(handleResponse),
-            { populateCache: false },
-          );
+          fetchApi("/workers/:workerId", {
+            method: "DELETE",
+            params: { workerId: workerId },
+            query: { sessionId: sessionId! },
+          }).then(handleResponse).then(() => mutate(() => true));
           dialogRef.current?.close();
         }}
       >

ui/apiClient.ts

@@ -1,15 +1,19 @@
-import { createFetcher, Output } from "t_rest/client";
-import { ApiHandler } from "../api/serveApi.ts";
+import { edenFetch } from "elysia/eden";
+import { Api } from "../api/serveApi.ts";
 
-export const fetchApi = createFetcher<ApiHandler>({
-  baseUrl: `${location.origin}/api/`,
-});
+export const API_URL = "/api";
 
-export function handleResponse<T extends Output>(
+export const fetchApi = edenFetch<Api>(API_URL);
+
+export function handleResponse<
+  T extends
+    | { data: unknown; error: null }
+    | { data: null; error: { status: number; value: unknown } },
+>(
   response: T,
-): (T & { status: 200 })["body"]["data"] {
-  if (response.status !== 200) {
-    throw new Error(String(response.body.data));
+): (T & { error: null })["data"] {
+  if (response.error) {
+    throw new Error(`${response.error?.status}: ${response.error?.value}`);
   }
-  return response.body.data;
+  return response.data;
 }

utils/Tkv.ts

@@ -0,0 +1,76 @@
+export type TkvEntry<K extends Deno.KvKey, T> = {
+  key: readonly [...K];
+  value: T;
+  versionstamp: string;
+};
+
+export type TkvEntryMaybe<K extends Deno.KvKey, T> = TkvEntry<K, T> | {
+  key: readonly [...K];
+  value: null;
+  versionstamp: null;
+};
+
+export type TkvListSelector<K extends Deno.KvKey> =
+  | { prefix: KvKeyPrefix<K> }
+  | { prefix: KvKeyPrefix<K>; start: readonly [...K] }
+  | { prefix: KvKeyPrefix<K>; end: readonly [...K] }
+  | { start: readonly [...K]; end: readonly [...K] };
+
+export type KvKeyPrefix<Key extends Deno.KvKey> = Key extends readonly [infer Prefix, ...infer Rest]
+  ? readonly [Prefix] | readonly [Prefix, ...Rest]
+  : never;
+
+/**
+ * Typed wrapper for {@link Deno.Kv}
+ */
+export class Tkv<K extends Deno.KvKey, T> {
+  constructor(readonly db: Deno.Kv) {}
+
+  get(
+    key: readonly [...K],
+    options: Parameters<Deno.Kv["get"]>[1] = {},
+  ): Promise<TkvEntryMaybe<K, T>> {
+    return this.db.get<T>(key, options) as any;
+  }
+
+  set(
+    key: readonly [...K],
+    value: T,
+    options: Parameters<Deno.Kv["set"]>[2] = {},
+  ): ReturnType<Deno.Kv["set"]> {
+    return this.db.set(key, value, options);
+  }
+
+  atomicSet(
+    key: readonly [...K],
+    versionstamp: Parameters<Deno.AtomicOperation["check"]>[0]["versionstamp"],
+    value: T,
+    options: Parameters<Deno.AtomicOperation["set"]>[2] = {},
+  ): ReturnType<Deno.AtomicOperation["commit"]> {
+    return this.db.atomic()
+      .check({ key, versionstamp })
+      .set(key, value, options)
+      .commit();
+  }
+
+  delete(key: readonly [...K]): ReturnType<Deno.Kv["delete"]> {
+    return this.db.delete(key);
+  }
+
+  atomicDelete(
+    key: readonly [...K],
+    versionstamp: Parameters<Deno.AtomicOperation["check"]>[0]["versionstamp"],
+  ): ReturnType<Deno.AtomicOperation["commit"]> {
+    return this.db.atomic()
+      .check({ key, versionstamp })
+      .delete(key)
+      .commit();
+  }
+
+  list(
+    selector: TkvListSelector<K>,
+    options: Parameters<Deno.Kv["list"]>[1] = {},
+  ): AsyncIterableIterator<TkvEntry<K, T>> {
+    return this.db.list<T>(selector as Deno.KvListSelector, options) as any;
+  }
+}