Initial commit

2025-02-19 10:12:42 -05:00
commit 15dd54cebd
37 changed files with 8132 additions and 0 deletions
--- a/.env.example
+++ b/.env.example
@@ -0,0 +1,9 @@
+BOT_TOKEN=
+BOT_MODE=polling
+LOG_LEVEL=debug
+DEBUG=true
+BOT_WEBHOOK=https://www.example.com/webhook
+BOT_WEBHOOK_SECRET=RANDOM_SECRET_VALUE
+SERVER_HOST=localhost
+SERVER_PORT=3000
+BOT_ADMINS=[1]
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: weekly
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -0,0 +1,44 @@
+name: Main
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [20.x]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+      - run: npm ci
+      - run: npm run lint
+      - run: npm run typecheck
+
+  auto-merge:
+    if: github.event_name == 'pull_request' && github.actor == 'dependabot[bot]'
+    runs-on: ubuntu-latest
+    needs: build-and-test
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v2
+        with:
+          github-token: '${{ secrets.GITHUB_TOKEN }}'
+      - name: Auto-merge
+        if: steps.metadata.outputs.update-type != 'version-update:semver-major'
+        run: gh pr merge --auto --squash "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GH_TOKEN: ${{secrets.GITHUB_TOKEN}}
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,138 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript build
+build
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env*
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# Data
+data/
+
+*.env
+
+# Jetbrains IDE
+.idea/
+
+# Ignore SQLite database
+*.db
+*.db-journal
--- a/.husky/pre-commit
+++ b/.husky/pre-commit
@@ -0,0 +1 @@
+npx lint-staged
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@@ -0,0 +1,7 @@
+{
+  "recommendations": [
+    "dbaeumer.vscode-eslint",
+    "macabeus.vscode-fluent",
+    "mikestead.dotenv"
+  ]
+}
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -0,0 +1,19 @@
+{
+  "typescript.preferences.importModuleSpecifier": "non-relative",
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "eslint.codeActionsOnSave.mode": "problems",
+  "eslint.format.enable": true,
+  "eslint.useFlatConfig": true,
+  "[typescript]": {
+    "editor.formatOnSave": true,
+    "editor.defaultFormatter": "dbaeumer.vscode-eslint"
+  },
+  "[markdown]": {
+    "editor.formatOnSave": true,
+    "editor.defaultFormatter": "dbaeumer.vscode-eslint"
+  },
+  "[javascript]": {
+    "editor.formatOnSave": true,
+    "editor.defaultFormatter": "dbaeumer.vscode-eslint"
+  }
+}
--- a/README.md
+++ b/README.md
@@ -0,0 +1,368 @@
+<h1 align="center">🤖 Telegram Bot Template</h1>
+
+<img align="right" width="35%" src="https://github.com/bot-base/telegram-bot-template/assets/26162440/c4371683-3e99-4b1c-ae8e-11ccbea78f4b">
+
+Bot starter template based on [grammY](https://grammy.dev/) bot framework.
+
+## Features
+
+- Scalable structure
+- Config loading and validation
+- Internationalization, language changing
+- Graceful shutdown
+- Logger (powered by [pino](https://github.com/pinojs/pino))
+- Ultrafast and multi-runtime server (powered by [hono](https://github.com/honojs/hono))
+- Ready-to-use deployment setups:
+    - [Docker](#docker-dockercom)
+    - [Vercel](#vercel-vercelcom)
+- Examples:
+    - grammY plugins:
+        - [Conversations](#grammy-conversations-grammydevpluginsconversations)
+    - Databases:
+      - [Prisma ORM](#prisma-orm-prismaio)
+    - Runtimes:
+      - [Bun](#bun-bunsh)
+
+## Usage
+
+Follow these steps to set up and run your bot using this template:
+
+1. **Create a New Repository**
+
+    Start by creating a new repository using this template. You can do this by clicking [here](https://github.com/bot-base/telegram-bot-template/generate).
+
+2. **Environment Variables Setup**
+
+    Create an environment variables file by copying the provided example file:
+     ```bash
+     cp .env.example .env
+     ```
+    Open the newly created `.env` file and set the `BOT_TOKEN` environment variable.
+
+3. **Launching the Bot**
+
+    You can run your bot in both development and production modes.
+
+    **Development Mode:**
+
+    Install the required dependencies:
+    ```bash
+    npm install
+    ```
+    Start the bot in watch mode (auto-reload when code changes):
+    ```bash
+    npm run dev
+    ```
+
+   **Production Mode:**
+
+    Install only production dependencies:
+    ```bash
+    npm install --only=prod
+    ```
+
+    Set `DEBUG` environment variable to `false` in your `.env` file.
+
+    Start the bot in production mode:
+    ```bash
+    npm run start:force # skip type checking and start
+    # or
+    npm start # with type checking (requires development dependencies)
+    ```
+
+### List of Available Commands
+
+- `npm run lint` — Lint source code.
+- `npm run format` — Format source code.
+- `npm run typecheck` — Run type checking.
+- `npm run dev` — Start the bot in development mode.
+- `npm run start` — Start the bot.
+- `npm run start:force` — Starts the bot without type checking.
+
+### Directory Structure
+
+```
+project-root/
+  ├── locales # Localization files
+  └── src
+      ├── bot # Code related to bot
+      │   ├── callback-data # Callback data builders
+      │   ├── features      # Bot features
+      │   ├── filters       # Update filters
+      │   ├── handlers      # Update handlers
+      │   ├── helpers       # Helper functions
+      │   ├── keyboards     # Keyboard builders
+      │   ├── middlewares   # Bot middlewares
+      │   ├── i18n.ts       # Internationalization setup
+      │   ├── context.ts    # Context object definition
+      │   └── index.ts      # Bot entry point
+      ├── server # Code related to web server
+      │   ├── middlewares   # Server middlewares
+      │   ├── environment   # Server environment setup
+      │   └── index.ts      # Server entry point
+      ├── config.ts # Application config
+      ├── logger.ts # Logging setup
+      └── main.ts   # Application entry point
+```
+
+## Deploy
+
+### Docker ([docker.com](https://docker.com))
+
+Branch:
+[deploy/docker-compose](https://github.com/bot-base/telegram-bot-template/tree/deploy/docker-compose)
+([open diff](https://github.com/bot-base/telegram-bot-template/compare/deploy/docker-compose))
+
+Use in your project:
+
+1. Add the template repository as a remote
+
+```sh
+git remote add template git@github.com:bot-base/telegram-bot-template.git
+git remote update
+```
+
+2. Merge deployment setup
+
+```sh
+git merge template/deploy/docker-compose -X theirs --squash --no-commit --allow-unrelated-histories
+```
+
+3. Follow [the usage instructions](https://github.com/bot-base/telegram-bot-template/tree/deploy/docker-compose#usage) in the `deploy/docker-compose` branch.
+
+### Vercel ([vercel.com](https://vercel.com))
+
+Branch:
+[deploy/vercel](https://github.com/bot-base/telegram-bot-template/tree/deploy/vercel)
+([open diff](https://github.com/bot-base/telegram-bot-template/compare/deploy/vercel))
+
+Use in your project:
+
+1. Add the template repository as a remote
+
+```sh
+git remote add template git@github.com:bot-base/telegram-bot-template.git
+git remote update
+```
+
+2. Merge deployment setup
+
+```sh
+git merge template/deploy/vercel -X theirs --squash --no-commit --allow-unrelated-histories
+```
+
+3. Follow [the usage instructions](https://github.com/bot-base/telegram-bot-template/tree/deploy/vercel#usage) in the `deploy/vercel` branch.
+
+## Examples
+
+### grammY conversations ([grammy.dev/plugins/conversations](https://grammy.dev/plugins/conversations))
+
+Branch:
+[example/plugin-conversations](https://github.com/bot-base/telegram-bot-template/tree/example/plugin-conversations)
+([open diff](https://github.com/bot-base/telegram-bot-template/compare/example/plugin-conversations))
+
+Use in your project:
+
+1. Add the template repository as a remote
+
+```sh
+git remote add template git@github.com:bot-base/telegram-bot-template.git
+git remote update
+```
+
+2. Merge example
+
+```sh
+git merge template/example/plugin-conversations -X theirs --squash --no-commit --allow-unrelated-histories
+```
+
+3. Install dependencies
+
+```sh
+npm i @grammyjs/conversations
+```
+
+4. Follow [the usage instructions](https://github.com/bot-base/telegram-bot-template/tree/example/plugin-conversations#usage) in the `example/plugin-conversations` branch.
+
+### Prisma ORM ([prisma.io](https://prisma.io))
+
+Branch:
+[example/orm-prisma](https://github.com/bot-base/telegram-bot-template/tree/example/orm-prisma)
+([open diff](https://github.com/bot-base/telegram-bot-template/compare/example/orm-prisma))
+
+Use in your project:
+
+1. Add the template repository as a remote
+
+```sh
+git remote add template git@github.com:bot-base/telegram-bot-template.git
+git remote update
+```
+
+2. Merge example
+
+```sh
+git merge template/example/orm-prisma -X theirs --squash --no-commit --allow-unrelated-histories
+```
+
+3. Install dependencies
+
+```sh
+npm i -D prisma
+npm i @prisma/client
+```
+
+4. Follow [the usage instructions](https://github.com/bot-base/telegram-bot-template/tree/example/orm-prisma#usage) in the `example/orm-prisma` branch.
+
+### Bun ([bun.sh](https://bun.sh))
+
+Branch:
+[example/runtime-bun](https://github.com/bot-base/telegram-bot-template/tree/example/runtime-bun)
+([open diff](https://github.com/bot-base/telegram-bot-template/compare/example/runtime-bun))
+
+Use in your project:
+
+1. Add the template repository as a remote
+
+```sh
+git remote add template git@github.com:bot-base/telegram-bot-template.git
+git remote update
+```
+
+2. Merge example
+
+```sh
+git merge template/example/runtime-bun -X theirs --squash --no-commit --allow-unrelated-histories
+```
+
+3. Install dependencies
+
+```sh
+# remove Node-related dependencies
+npm r @types/node tsx tsc-watch
+
+# install dependencies
+bun i
+
+# remove npm lockfile
+rm package-lock.json
+
+# install bun typings
+bun add -d @types/bun
+```
+
+4. Follow [the usage instructions](https://github.com/bot-base/telegram-bot-template/tree/example/runtime-bun#usage) in the `example/runtime-bun` branch.
+
+## Environment Variables
+
+<table>
+<thead>
+  <tr>
+    <th>Variable</th>
+    <th>Type</th>
+    <th>Description</th>
+  </tr>
+</thead>
+<tbody>
+  <tr>
+    <td>BOT_TOKEN</td>
+    <td>
+        String
+    </td>
+    <td>
+        Telegram Bot API token obtained from <a href="https://t.me/BotFather">@BotFather</a>.
+    </td>
+  </tr>
+  <tr>
+    <td>BOT_MODE</td>
+    <td>
+        String
+    </td>
+    <td>
+        Specifies method to receive incoming updates (<code>polling</code> or <code>webhook</code>).
+    </td>
+  </tr>
+  <tr>
+    <td>LOG_LEVEL</td>
+    <td>
+        String
+    </td>
+    <td>
+        <i>Optional.</i>
+        Specifies the application log level. <br/>
+        Use <code>info</code> for general logging. Check the <a href="https://github.com/pinojs/pino/blob/master/docs/api.md#level-string">Pino documentation</a> for more log level options. <br/>
+        Defaults to <code>info</code>.
+    </td>
+  </tr>
+  <tr>
+    <td>DEBUG</td>
+    <td>Boolean</td>
+    <td>
+      <i>Optional.</i>
+      Enables debug mode. You may use <code>config.isDebug</code> flag to enable debugging functions.
+    </td>
+  </tr>
+  <tr>
+    <td>BOT_WEBHOOK</td>
+    <td>
+        String
+    </td>
+    <td>
+        <i>Optional in <code>polling</code> mode.</i>
+        Webhook endpoint URL, used to configure webhook.
+    </td>
+  </tr>
+  <tr>
+    <td>BOT_WEBHOOK_SECRET</td>
+    <td>
+        String
+    </td>
+    <td>
+        <i>Optional in <code>polling</code> mode.</i>
+        A secret token that is used to ensure that a request is sent from Telegram, used to configure webhook.
+    </td>
+  </tr>
+  <tr>
+    <td>SERVER_HOST</td>
+    <td>
+        String
+    </td>
+    <td>
+        <i>Optional in <code>polling</code> mode.</i> Specifies the server hostname. <br/>
+        Defaults to <code>0.0.0.0</code>.
+    </td>
+  </tr>
+  <tr>
+    <td>SERVER_PORT</td>
+    <td>
+        Number
+    </td>
+    <td>
+        <i>Optional in <code>polling</code> mode.</i> Specifies the server port. <br/>
+        Defaults to <code>80</code>.
+    </td>
+  </tr>
+  <tr>
+    <td>BOT_ALLOWED_UPDATES</td>
+    <td>
+        Array of String
+    </td>
+    <td>
+        <i>Optional.</i> A JSON-serialized list of the update types you want your bot to receive. See <a href="https://core.telegram.org/bots/api#update">Update</a> for a complete list of available update types. <br/>
+        Defaults to an empty array (all update types except <code>chat_member</code>, <code>message_reaction</code> and <code>message_reaction_count</code>).
+    </td>
+  </tr>
+  <tr>
+    <td>BOT_ADMINS</td>
+    <td>
+        Array of Number
+    </td>
+    <td>
+        <i>Optional.</i>
+        Administrator user IDs.
+        Use this to specify user IDs that have special privileges, such as executing <code>/setcommands</code>. <br/>
+        Defaults to an empty array.
+    </td>
+  </tr>
+</tbody>
+</table>
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -0,0 +1,5 @@
+import antfu from '@antfu/eslint-config'
+
+export default antfu({
+
+})
--- a/locales/en.ftl
+++ b/locales/en.ftl
@@ -0,0 +1,25 @@
+## Commands
+
+start =
+    .description = Start the bot
+language =
+    .description = Change language
+setcommands =
+    .description = Set bot commands
+
+## Welcome Feature
+
+welcome = Welcome!
+
+## Language Feature
+
+language-select = Please, select your language
+language-changed = Language successfully changed!
+
+## Admin Feature
+
+admin-commands-updated = Commands updated.
+
+## Unhandled Feature
+
+unhandled = Unrecognized command. Try /start
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -0,0 +1,56 @@
+{
+  "name": "telegram-bot-template",
+  "type": "module",
+  "version": "0.1.0",
+  "private": true,
+  "description": "Telegram bot starter template",
+  "imports": {
+    "#root/*": "./build/src/*"
+  },
+  "author": "deptyped <deptyped@gmail.com>",
+  "license": "MIT",
+  "engines": {
+    "node": ">=20.0.0",
+    "npm": ">=8.0.0"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "format": "eslint . --fix",
+    "typecheck": "tsc",
+    "build": "tsc --noEmit false",
+    "dev": "tsc-watch --onSuccess \"tsx ./src/main.ts\"",
+    "start": "tsc && tsx ./src/main.ts",
+    "start:force": "tsx ./src/main.ts",
+    "prepare": "husky || true"
+  },
+  "dependencies": {
+    "@grammyjs/auto-chat-action": "0.1.1",
+    "@grammyjs/commands": "1.0.5",
+    "@grammyjs/hydrate": "1.4.1",
+    "@grammyjs/i18n": "1.1.2",
+    "@grammyjs/parse-mode": "1.11.1",
+    "@grammyjs/runner": "2.0.3",
+    "@grammyjs/types": "3.19.0",
+    "@hono/node-server": "1.13.8",
+    "callback-data": "1.1.1",
+    "grammy": "1.35.0",
+    "hono": "4.7.2",
+    "iso-639-1": "3.1.5",
+    "pino": "9.6.0",
+    "pino-pretty": "13.0.0",
+    "tsx": "4.19.3",
+    "valibot": "0.42.1"
+  },
+  "devDependencies": {
+    "@antfu/eslint-config": "4.3.0",
+    "@types/node": "^22.13.4",
+    "eslint": "^9.20.1",
+    "husky": "^9.1.7",
+    "lint-staged": "^15.4.3",
+    "tsc-watch": "^6.2.1",
+    "typescript": "^5.7.3"
+  },
+  "lint-staged": {
+    "*.ts": "eslint"
+  }
+}
--- a/src/bot/callback-data/change-language.ts
+++ b/src/bot/callback-data/change-language.ts
@@ -0,0 +1,5 @@
+import { createCallbackData } from 'callback-data'
+
+export const changeLanguageData = createCallbackData('language', {
+  code: String,
+})
--- a/src/bot/context.ts
+++ b/src/bot/context.ts
@@ -0,0 +1,26 @@
+import type { Config } from '#root/config.js'
+import type { Logger } from '#root/logger.js'
+import type { AutoChatActionFlavor } from '@grammyjs/auto-chat-action'
+import type { HydrateFlavor } from '@grammyjs/hydrate'
+import type { I18nFlavor } from '@grammyjs/i18n'
+import type { ParseModeFlavor } from '@grammyjs/parse-mode'
+import type { Context as DefaultContext, SessionFlavor } from 'grammy'
+
+export interface SessionData {
+  // field?: string;
+}
+
+interface ExtendedContextFlavor {
+  logger: Logger
+  config: Config
+}
+
+export type Context = ParseModeFlavor<
+  HydrateFlavor<
+    DefaultContext &
+    ExtendedContextFlavor &
+    SessionFlavor<SessionData> &
+    I18nFlavor &
+    AutoChatActionFlavor
+  >
+>
--- a/src/bot/features/admin.ts
+++ b/src/bot/features/admin.ts
@@ -0,0 +1,21 @@
+import type { Context } from '#root/bot/context.js'
+import { isAdmin } from '#root/bot/filters/is-admin.js'
+import { setCommandsHandler } from '#root/bot/handlers/commands/setcommands.js'
+import { logHandle } from '#root/bot/helpers/logging.js'
+import { chatAction } from '@grammyjs/auto-chat-action'
+import { Composer } from 'grammy'
+
+const composer = new Composer<Context>()
+
+const feature = composer
+  .chatType('private')
+  .filter(isAdmin)
+
+feature.command(
+  'setcommands',
+  logHandle('command-setcommands'),
+  chatAction('typing'),
+  setCommandsHandler,
+)
+
+export { composer as adminFeature }
--- a/src/bot/features/language.ts
+++ b/src/bot/features/language.ts
@@ -0,0 +1,36 @@
+import type { Context } from '#root/bot/context.js'
+import { changeLanguageData } from '#root/bot/callback-data/change-language.js'
+import { logHandle } from '#root/bot/helpers/logging.js'
+import { i18n } from '#root/bot/i18n.js'
+import { createChangeLanguageKeyboard } from '#root/bot/keyboards/change-language.js'
+import { Composer } from 'grammy'
+
+const composer = new Composer<Context>()
+
+const feature = composer.chatType('private')
+
+feature.command('language', logHandle('command-language'), async (ctx) => {
+  return ctx.reply(ctx.t('language-select'), {
+    reply_markup: await createChangeLanguageKeyboard(ctx),
+  })
+})
+
+feature.callbackQuery(
+  changeLanguageData.filter(),
+  logHandle('keyboard-language-select'),
+  async (ctx) => {
+    const { code: languageCode } = changeLanguageData.unpack(
+      ctx.callbackQuery.data,
+    )
+
+    if (i18n.locales.includes(languageCode)) {
+      await ctx.i18n.setLocale(languageCode)
+
+      return ctx.editMessageText(ctx.t('language-changed'), {
+        reply_markup: await createChangeLanguageKeyboard(ctx),
+      })
+    }
+  },
+)
+
+export { composer as languageFeature }
--- a/src/bot/features/unhandled.ts
+++ b/src/bot/features/unhandled.ts
@@ -0,0 +1,17 @@
+import type { Context } from '#root/bot/context.js'
+import { logHandle } from '#root/bot/helpers/logging.js'
+import { Composer } from 'grammy'
+
+const composer = new Composer<Context>()
+
+const feature = composer.chatType('private')
+
+feature.on('message', logHandle('unhandled-message'), (ctx) => {
+  return ctx.reply(ctx.t('unhandled'))
+})
+
+feature.on('callback_query', logHandle('unhandled-callback-query'), (ctx) => {
+  return ctx.answerCallbackQuery()
+})
+
+export { composer as unhandledFeature }
--- a/src/bot/features/welcome.ts
+++ b/src/bot/features/welcome.ts
@@ -0,0 +1,13 @@
+import type { Context } from '#root/bot/context.js'
+import { logHandle } from '#root/bot/helpers/logging.js'
+import { Composer } from 'grammy'
+
+const composer = new Composer<Context>()
+
+const feature = composer.chatType('private')
+
+feature.command('start', logHandle('command-start'), (ctx) => {
+  return ctx.reply(ctx.t('welcome'))
+})
+
+export { composer as welcomeFeature }
--- a/src/bot/filters/is-admin.ts
+++ b/src/bot/filters/is-admin.ts
@@ -0,0 +1,5 @@
+import type { Context } from '#root/bot/context.js'
+
+export function isAdmin(ctx: Context) {
+  return !!ctx.from && ctx.config.botAdmins.includes(ctx.from.id)
+}
--- a/src/bot/handlers/commands/setcommands.ts
+++ b/src/bot/handlers/commands/setcommands.ts
@@ -0,0 +1,49 @@
+import type { Context } from '#root/bot/context.js'
+import type { LanguageCode } from '@grammyjs/types'
+import type { CommandContext } from 'grammy'
+import { i18n } from '#root/bot/i18n.js'
+import { Command, CommandGroup } from '@grammyjs/commands'
+
+function addCommandLocalizations(command: Command) {
+  i18n.locales.forEach((locale) => {
+    command.localize(
+      locale as LanguageCode,
+      command.name,
+      i18n.t(locale, `${command.name}.description`),
+    )
+  })
+  return command
+}
+
+function addCommandToChats(command: Command, chats: number[]) {
+  for (const chatId of chats) {
+    command.addToScope({
+      type: 'chat',
+      chat_id: chatId,
+    })
+  }
+}
+
+export async function setCommandsHandler(ctx: CommandContext<Context>) {
+  const start = new Command('start', i18n.t('en', 'start.description'))
+    .addToScope({ type: 'all_private_chats' })
+  addCommandLocalizations(start)
+  addCommandToChats(start, ctx.config.botAdmins)
+
+  const language = new Command('language', i18n.t('en', 'language.description'))
+    .addToScope({ type: 'all_private_chats' })
+  addCommandLocalizations(language)
+  addCommandToChats(language, ctx.config.botAdmins)
+
+  const setcommands = new Command('setcommands', i18n.t('en', 'setcommands.description'))
+  addCommandToChats(setcommands, ctx.config.botAdmins)
+
+  const commands = new CommandGroup()
+    .add(start)
+    .add(language)
+    .add(setcommands)
+
+  await commands.setCommands(ctx)
+
+  return ctx.reply(ctx.t('admin-commands-updated'))
+}
--- a/src/bot/handlers/error.ts
+++ b/src/bot/handlers/error.ts
@@ -0,0 +1,12 @@
+import type { Context } from '#root/bot/context.js'
+import type { ErrorHandler } from 'grammy'
+import { getUpdateInfo } from '#root/bot/helpers/logging.js'
+
+export const errorHandler: ErrorHandler<Context> = (error) => {
+  const { ctx } = error
+
+  ctx.logger.error({
+    err: error.error,
+    update: getUpdateInfo(ctx),
+  })
+}
--- a/src/bot/helpers/keyboard.ts
+++ b/src/bot/helpers/keyboard.ts
@@ -0,0 +1,7 @@
+export function chunk<T>(array: T[], size: number) {
+  const result = []
+  for (let index = 0; index < array.length; index += size)
+    result.push(array.slice(index, index + size))
+
+  return result
+}
--- a/src/bot/helpers/logging.ts
+++ b/src/bot/helpers/logging.ts
@@ -0,0 +1,20 @@
+import type { Context } from '#root/bot/context.js'
+import type { Update } from '@grammyjs/types'
+import type { Middleware } from 'grammy'
+
+export function getUpdateInfo(ctx: Context): Omit<Update, 'update_id'> {
+  const { update_id, ...update } = ctx.update
+
+  return update
+}
+
+export function logHandle(id: string): Middleware<Context> {
+  return (ctx, next) => {
+    ctx.logger.info({
+      msg: `Handle "${id}"`,
+      ...(id.startsWith('unhandled') ? { update: getUpdateInfo(ctx) } : {}),
+    })
+
+    return next()
+  }
+}
--- a/src/bot/i18n.ts
+++ b/src/bot/i18n.ts
@@ -0,0 +1,15 @@
+import type { Context } from '#root/bot/context.js'
+import path from 'node:path'
+import process from 'node:process'
+import { I18n } from '@grammyjs/i18n'
+
+export const i18n = new I18n<Context>({
+  defaultLocale: 'en',
+  directory: path.resolve(process.cwd(), 'locales'),
+  useSession: true,
+  fluentBundleOptions: {
+    useIsolating: false,
+  },
+})
+
+export const isMultipleLocales = i18n.locales.length > 1
--- a/src/bot/index.ts
+++ b/src/bot/index.ts
@@ -0,0 +1,75 @@
+import type { Context } from '#root/bot/context.js'
+import type { Config } from '#root/config.js'
+import type { Logger } from '#root/logger.js'
+import type { BotConfig } from 'grammy'
+import { adminFeature } from '#root/bot/features/admin.js'
+import { languageFeature } from '#root/bot/features/language.js'
+import { unhandledFeature } from '#root/bot/features/unhandled.js'
+import { welcomeFeature } from '#root/bot/features/welcome.js'
+import { errorHandler } from '#root/bot/handlers/error.js'
+import { i18n, isMultipleLocales } from '#root/bot/i18n.js'
+import { session } from '#root/bot/middlewares/session.js'
+import { updateLogger } from '#root/bot/middlewares/update-logger.js'
+import { autoChatAction } from '@grammyjs/auto-chat-action'
+import { hydrate } from '@grammyjs/hydrate'
+import { hydrateReply, parseMode } from '@grammyjs/parse-mode'
+import { sequentialize } from '@grammyjs/runner'
+import { MemorySessionStorage, Bot as TelegramBot } from 'grammy'
+
+interface Dependencies {
+  config: Config
+  logger: Logger
+}
+
+function getSessionKey(ctx: Omit<Context, 'session'>) {
+  return ctx.chat?.id.toString()
+}
+
+export function createBot(token: string, dependencies: Dependencies, botConfig?: BotConfig<Context>) {
+  const {
+    config,
+    logger,
+  } = dependencies
+
+  const bot = new TelegramBot<Context>(token, botConfig)
+
+  bot.use(async (ctx, next) => {
+    ctx.config = config
+    ctx.logger = logger.child({
+      update_id: ctx.update.update_id,
+    })
+
+    await next()
+  })
+
+  const protectedBot = bot.errorBoundary(errorHandler)
+
+  // Middlewares
+  bot.api.config.use(parseMode('HTML'))
+
+  if (config.isPollingMode)
+    protectedBot.use(sequentialize(getSessionKey))
+  if (config.isDebug)
+    protectedBot.use(updateLogger())
+  protectedBot.use(autoChatAction(bot.api))
+  protectedBot.use(hydrateReply)
+  protectedBot.use(hydrate())
+  protectedBot.use(session({
+    getSessionKey,
+    storage: new MemorySessionStorage(),
+  }))
+  protectedBot.use(i18n)
+
+  // Handlers
+  protectedBot.use(welcomeFeature)
+  protectedBot.use(adminFeature)
+  if (isMultipleLocales)
+    protectedBot.use(languageFeature)
+
+  // must be the last handler
+  protectedBot.use(unhandledFeature)
+
+  return bot
+}
+
+export type Bot = ReturnType<typeof createBot>
--- a/src/bot/keyboards/change-language.ts
+++ b/src/bot/keyboards/change-language.ts
@@ -0,0 +1,28 @@
+import type { Context } from '#root/bot/context.js'
+import { changeLanguageData } from '#root/bot/callback-data/change-language.js'
+import { chunk } from '#root/bot/helpers/keyboard.js'
+import { i18n } from '#root/bot/i18n.js'
+import { InlineKeyboard } from 'grammy'
+import ISO6391 from 'iso-639-1'
+
+export async function createChangeLanguageKeyboard(ctx: Context) {
+  const currentLocaleCode = await ctx.i18n.getLocale()
+
+  const getLabel = (code: string) => {
+    const isActive = code === currentLocaleCode
+
+    return `${isActive ? '✅ ' : ''}${ISO6391.getNativeName(code)}`
+  }
+
+  return InlineKeyboard.from(
+    chunk(
+      i18n.locales.map(localeCode => ({
+        text: getLabel(localeCode),
+        callback_data: changeLanguageData.pack({
+          code: localeCode,
+        }),
+      })),
+      2,
+    ),
+  )
+}
--- a/src/bot/middlewares/session.ts
+++ b/src/bot/middlewares/session.ts
@@ -0,0 +1,13 @@
+import type { Context, SessionData } from '#root/bot/context.js'
+import type { Middleware, SessionOptions } from 'grammy'
+import { session as createSession } from 'grammy'
+
+type Options = Pick<SessionOptions<SessionData, Context>, 'getSessionKey' | 'storage'>
+
+export function session(options: Options): Middleware<Context> {
+  return createSession({
+    getSessionKey: options.getSessionKey,
+    storage: options.storage,
+    initial: () => ({}),
+  })
+}
--- a/src/bot/middlewares/update-logger.ts
+++ b/src/bot/middlewares/update-logger.ts
@@ -0,0 +1,35 @@
+import type { Context } from '#root/bot/context.js'
+import type { Middleware } from 'grammy'
+import { performance } from 'node:perf_hooks'
+import { getUpdateInfo } from '#root/bot/helpers/logging.js'
+
+export function updateLogger(): Middleware<Context> {
+  return async (ctx, next) => {
+    ctx.api.config.use((previous, method, payload, signal) => {
+      ctx.logger.debug({
+        msg: 'Bot API call',
+        method,
+        payload,
+      })
+
+      return previous(method, payload, signal)
+    })
+
+    ctx.logger.debug({
+      msg: 'Update received',
+      update: getUpdateInfo(ctx),
+    })
+
+    const startTime = performance.now()
+    try {
+      await next()
+    }
+    finally {
+      const endTime = performance.now()
+      ctx.logger.debug({
+        msg: 'Update processed',
+        elapsed: endTime - startTime,
+      })
+    }
+  }
+}
--- a/src/config.ts
+++ b/src/config.ts
@@ -0,0 +1,98 @@
+import process from 'node:process'
+import { API_CONSTANTS } from 'grammy'
+import * as v from 'valibot'
+
+const baseConfigSchema = v.object({
+  debug: v.optional(v.pipe(v.string(), v.transform(JSON.parse), v.boolean()), 'false'),
+  logLevel: v.optional(v.pipe(v.string(), v.picklist(['trace', 'debug', 'info', 'warn', 'error', 'fatal', 'silent'])), 'info'),
+  botToken: v.pipe(v.string(), v.regex(/^\d+:[\w-]+$/, 'Invalid token')),
+  botAllowedUpdates: v.optional(v.pipe(v.string(), v.transform(JSON.parse), v.array(v.picklist(API_CONSTANTS.ALL_UPDATE_TYPES))), '[]'),
+  botAdmins: v.optional(v.pipe(v.string(), v.transform(JSON.parse), v.array(v.number())), '[]'),
+})
+
+const configSchema = v.variant('botMode', [
+  // polling config
+  v.pipe(
+    v.object({
+      botMode: v.literal('polling'),
+      ...baseConfigSchema.entries,
+    }),
+    v.transform(input => ({
+      ...input,
+      isDebug: input.debug,
+      isWebhookMode: false as const,
+      isPollingMode: true as const,
+    })),
+  ),
+  // webhook config
+  v.pipe(
+    v.object({
+      botMode: v.literal('webhook'),
+      ...baseConfigSchema.entries,
+      botWebhook: v.pipe(v.string(), v.url()),
+      botWebhookSecret: v.pipe(v.string(), v.minLength(12)),
+      serverHost: v.optional(v.string(), '0.0.0.0'),
+      serverPort: v.optional(v.pipe(v.string(), v.transform(Number), v.number()), '80'),
+    }),
+    v.transform(input => ({
+      ...input,
+      isDebug: input.debug,
+      isWebhookMode: true as const,
+      isPollingMode: false as const,
+    })),
+  ),
+])
+
+export type Config = v.InferOutput<typeof configSchema>
+export type PollingConfig = v.InferOutput<typeof configSchema['options'][0]>
+export type WebhookConfig = v.InferOutput<typeof configSchema['options'][1]>
+
+export function createConfig(input: v.InferInput<typeof configSchema>) {
+  return v.parse(configSchema, input)
+}
+
+export const config = createConfigFromEnvironment()
+
+function createConfigFromEnvironment() {
+  type CamelCase<S extends string> = S extends `${infer P1}_${infer P2}${infer P3}`
+    ? `${Lowercase<P1>}${Uppercase<P2>}${CamelCase<P3>}`
+    : Lowercase<S>
+
+  type KeysToCamelCase<T> = {
+    [K in keyof T as CamelCase<string & K>]: T[K] extends object ? KeysToCamelCase<T[K]> : T[K]
+  }
+
+  function toCamelCase(str: string): string {
+    return str.toLowerCase().replace(/_([a-z])/g, (_match, p1) => p1.toUpperCase())
+  }
+
+  function convertKeysToCamelCase<T>(obj: T): KeysToCamelCase<T> {
+    const result: any = {}
+    for (const key in obj) {
+      if (Object.prototype.hasOwnProperty.call(obj, key)) {
+        const camelCaseKey = toCamelCase(key)
+        result[camelCaseKey] = obj[key]
+      }
+    }
+    return result
+  }
+
+  try {
+    process.loadEnvFile()
+  }
+  catch {
+    // No .env file found
+  }
+
+  try {
+    // @ts-expect-error create config from environment variables
+    const config = createConfig(convertKeysToCamelCase(process.env))
+
+    return config
+  }
+  catch (error) {
+    throw new Error('Invalid config', {
+      cause: error,
+    })
+  }
+}
--- a/src/logger.ts
+++ b/src/logger.ts
@@ -0,0 +1,31 @@
+import { config } from '#root/config.js'
+import { pino } from 'pino'
+
+export const logger = pino({
+  level: config.logLevel,
+  transport: {
+    targets: [
+      ...(config.isDebug
+        ? [
+            {
+              target: 'pino-pretty',
+              level: config.logLevel,
+              options: {
+                ignore: 'pid,hostname',
+                colorize: true,
+                translateTime: true,
+              },
+            },
+          ]
+        : [
+            {
+              target: 'pino/file',
+              level: config.logLevel,
+              options: {},
+            },
+          ]),
+    ],
+  },
+})
+
+export type Logger = typeof logger
--- a/src/main.ts
+++ b/src/main.ts
@@ -0,0 +1,111 @@
+#!/usr/bin/env tsx
+/* eslint-disable antfu/no-top-level-await */
+
+import type { PollingConfig, WebhookConfig } from '#root/config.js'
+import type { RunnerHandle } from '@grammyjs/runner'
+import process from 'node:process'
+import { createBot } from '#root/bot/index.js'
+import { config } from '#root/config.js'
+import { logger } from '#root/logger.js'
+import { createServer, createServerManager } from '#root/server/index.js'
+import { run } from '@grammyjs/runner'
+
+async function startPolling(config: PollingConfig) {
+  const bot = createBot(config.botToken, {
+    config,
+    logger,
+  })
+  let runner: undefined | RunnerHandle
+
+  // graceful shutdown
+  onShutdown(async () => {
+    logger.info('Shutdown')
+    await runner?.stop()
+  })
+
+  await Promise.all([
+    bot.init(),
+    bot.api.deleteWebhook(),
+  ])
+
+  // start bot
+  runner = run(bot, {
+    runner: {
+      fetch: {
+        allowed_updates: config.botAllowedUpdates,
+      },
+    },
+  })
+
+  logger.info({
+    msg: 'Bot running...',
+    username: bot.botInfo.username,
+  })
+}
+
+async function startWebhook(config: WebhookConfig) {
+  const bot = createBot(config.botToken, {
+    config,
+    logger,
+  })
+  const server = createServer({
+    bot,
+    config,
+    logger,
+  })
+  const serverManager = createServerManager(server, {
+    host: config.serverHost,
+    port: config.serverPort,
+  })
+
+  // graceful shutdown
+  onShutdown(async () => {
+    logger.info('Shutdown')
+    await serverManager.stop()
+  })
+
+  // to prevent receiving updates before the bot is ready
+  await bot.init()
+
+  // start server
+  const info = await serverManager.start()
+  logger.info({
+    msg: 'Server started',
+    url: info.url,
+  })
+
+  // set webhook
+  await bot.api.setWebhook(config.botWebhook, {
+    allowed_updates: config.botAllowedUpdates,
+    secret_token: config.botWebhookSecret,
+  })
+  logger.info({
+    msg: 'Webhook was set',
+    url: config.botWebhook,
+  })
+}
+
+try {
+  if (config.isWebhookMode)
+    await startWebhook(config)
+  else if (config.isPollingMode)
+    await startPolling(config)
+}
+catch (error) {
+  logger.error(error)
+  process.exit(1)
+}
+
+// Utils
+
+function onShutdown(cleanUp: () => Promise<void>) {
+  let isShuttingDown = false
+  const handleShutdown = async () => {
+    if (isShuttingDown)
+      return
+    isShuttingDown = true
+    await cleanUp()
+  }
+  process.on('SIGINT', handleShutdown)
+  process.on('SIGTERM', handleShutdown)
+}
--- a/src/server/environment.ts
+++ b/src/server/environment.ts
@@ -0,0 +1,8 @@
+import type { Logger } from '#root/logger.js'
+
+export interface Env {
+  Variables: {
+    requestId: string
+    logger: Logger
+  }
+}
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -0,0 +1,102 @@
+import type { Bot } from '#root/bot/index.js'
+import type { Config } from '#root/config.js'
+import type { Logger } from '#root/logger.js'
+import type { Env } from '#root/server/environment.js'
+import { setLogger } from '#root/server/middlewares/logger.js'
+import { requestId } from '#root/server/middlewares/request-id.js'
+import { requestLogger } from '#root/server/middlewares/request-logger.js'
+import { serve } from '@hono/node-server'
+import { webhookCallback } from 'grammy'
+import { Hono } from 'hono'
+import { HTTPException } from 'hono/http-exception'
+import { getPath } from 'hono/utils/url'
+
+interface Dependencies {
+  bot: Bot
+  config: Config
+  logger: Logger
+}
+
+export function createServer(dependencies: Dependencies) {
+  const {
+    bot,
+    config,
+    logger,
+  } = dependencies
+
+  const server = new Hono<Env>()
+
+  server.use(requestId())
+  server.use(setLogger(logger))
+  if (config.isDebug)
+    server.use(requestLogger())
+
+  server.onError(async (error, c) => {
+    if (error instanceof HTTPException) {
+      if (error.status < 500)
+        c.var.logger.info(error)
+      else
+        c.var.logger.error(error)
+
+      return error.getResponse()
+    }
+
+    // unexpected error
+    c.var.logger.error({
+      err: error,
+      method: c.req.raw.method,
+      path: getPath(c.req.raw),
+    })
+    return c.json(
+      {
+        error: 'Oops! Something went wrong.',
+      },
+      500,
+    )
+  })
+
+  server.get('/', c => c.json({ status: true }))
+
+  if (config.isWebhookMode) {
+    server.post(
+      '/webhook',
+      webhookCallback(bot, 'hono', {
+        secretToken: config.botWebhookSecret,
+      }),
+    )
+  }
+
+  return server
+}
+
+export type Server = Awaited<ReturnType<typeof createServer>>
+
+export function createServerManager(server: Server, options: { host: string, port: number }) {
+  let handle: undefined | ReturnType<typeof serve>
+  return {
+    start() {
+      return new Promise<{ url: string }>((resolve) => {
+        handle = serve(
+          {
+            fetch: server.fetch,
+            hostname: options.host,
+            port: options.port,
+          },
+          info => resolve({
+            url: info.family === 'IPv6'
+              ? `http://[${info.address}]:${info.port}`
+              : `http://${info.address}:${info.port}`,
+          }),
+        )
+      })
+    },
+    stop() {
+      return new Promise<void>((resolve) => {
+        if (handle)
+          handle.close(() => resolve())
+        else
+          resolve()
+      })
+    },
+  }
+}
--- a/src/server/middlewares/logger.ts
+++ b/src/server/middlewares/logger.ts
@@ -0,0 +1,15 @@
+import type { Logger } from '#root/logger.js'
+import type { MiddlewareHandler } from 'hono'
+
+export function setLogger(logger: Logger): MiddlewareHandler {
+  return async (c, next) => {
+    c.set(
+      'logger',
+      logger.child({
+        requestId: c.get('requestId'),
+      }),
+    )
+
+    await next()
+  }
+}
--- a/src/server/middlewares/request-id.ts
+++ b/src/server/middlewares/request-id.ts
@@ -0,0 +1,10 @@
+import type { MiddlewareHandler } from 'hono'
+import { randomUUID } from 'node:crypto'
+
+export function requestId(): MiddlewareHandler {
+  return async (c, next) => {
+    c.set('requestId', randomUUID())
+
+    await next()
+  }
+}
--- a/src/server/middlewares/request-logger.ts
+++ b/src/server/middlewares/request-logger.ts
@@ -0,0 +1,27 @@
+import type { MiddlewareHandler } from 'hono'
+import { getPath } from 'hono/utils/url'
+
+export function requestLogger(): MiddlewareHandler {
+  return async (c, next) => {
+    const { method } = c.req
+    const path = getPath(c.req.raw)
+
+    c.var.logger.debug({
+      msg: 'Incoming request',
+      method,
+      path,
+    })
+    const startTime = performance.now()
+
+    await next()
+
+    const endTime = performance.now()
+    c.var.logger.debug({
+      msg: 'Request completed',
+      method,
+      path,
+      status: c.res.status,
+      elapsed: endTime - startTime,
+    })
+  }
+}
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -0,0 +1,23 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "rootDir": ".",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "paths": {
+      "#root/*": [
+        "./src/*"
+      ]
+    },
+    "strict": true,
+    "noEmit": true,
+    "outDir": "build",
+    "sourceMap": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "preserveWatchOutput": true
+  },
+  "include": [
+    "src/**/*"
+  ]
+}