nestjs-telegraf/sample/01-complete-app/src/greeter/scenes/random-number.scene.ts

import { Scene, SceneEnter, SceneLeave, Command } from 'nestjs-telegraf';
import { HELLO_SCENE_ID } from '../../app.constants';
import { Context } from '../../interfaces/context.interface';

@Scene(HELLO_SCENE_ID)
export class RandomNumberScene {
  @SceneEnter()
  onSceneEnter(): string {
    console.log('Enter to scene');
    return 'Welcome on scene ✋';
  }

  @SceneLeave()
  onSceneLeave(): string {
    console.log('Leave from scene');
    return 'Bye Bye 👋';
  }

  @Command(['rng', 'random'])
  onRandomCommand(): number {
    console.log('Use "random" command');
    return Math.floor(Math.random() * 11);
  }

  @Command('leave')
  async onLeaveCommand(ctx: Context): Promise<void> {
    await ctx.scene.leave();
  }
}