Revert "initial commit"

This reverts commit 2d23eba148.

sample/01-complete-app/src/echo/echo.module.ts

@@ -0,0 +1,9 @@
+import { Module } from '@nestjs/common';
+import { EchoUpdate } from './echo.update';
+import { EchoService } from './echo.service';
+import { RandomNumberScene } from '../greeter/scenes/random-number.scene';
+
+@Module({
+  providers: [EchoUpdate, EchoService, RandomNumberScene],
+})
+export class EchoModule {}

sample/01-complete-app/src/echo/echo.service.ts

@@ -0,0 +1,8 @@
+import { Injectable } from '@nestjs/common';
+
+@Injectable()
+export class EchoService {
+  echo(text: string): string {
+    return `Echo: ${text}`;
+  }
+}

sample/01-complete-app/src/echo/echo.update.ts

@@ -0,0 +1,53 @@
+import { UseFilters, UseGuards, UseInterceptors } from '@nestjs/common';
+import {
+  Help,
+  InjectBot,
+  On,
+  Message,
+  Start,
+  Update,
+  Command,
+} from 'nestjs-telegraf';
+import { Telegraf } from 'telegraf';
+import { EchoService } from './echo.service';
+import { GreeterBotName } from '../app.constants';
+import { Context } from '../interfaces/context.interface';
+import { ReverseTextPipe } from '../common/pipes/reverse-text.pipe';
+import { ResponseTimeInterceptor } from '../common/interceptors/response-time.interceptor';
+import { AdminGuard } from '../common/guards/admin.guard';
+import { TelegrafExceptionFilter } from '../common/filters/telegraf-exception.filter';
+
+@Update()
+@UseInterceptors(ResponseTimeInterceptor)
+@UseFilters(TelegrafExceptionFilter)
+export class EchoUpdate {
+  constructor(
+    @InjectBot(GreeterBotName)
+    private readonly bot: Telegraf<Context>,
+    private readonly echoService: EchoService,
+  ) {}
+
+  @Start()
+  async onStart(): Promise<string> {
+    const me = await this.bot.telegram.getMe();
+    return `Hey, I'm ${me.first_name}`;
+  }
+
+  @Help()
+  async onHelp(): Promise<string> {
+    return 'Send me any text';
+  }
+
+  @Command('admin')
+  @UseGuards(AdminGuard)
+  onAdminCommand(): string {
+    return 'Welcome judge';
+  }
+
+  @On('text')
+  onMessage(
+    @Message('text', new ReverseTextPipe()) reversedText: string,
+  ): string {
+    return this.echoService.echo(reversedText);
+  }
+}