!feat(): add scene support & many refactor

sample/app.constants.ts

@@ -0,0 +1 @@
+export const HELLO_SCENE_ID = 'HELLO_SCENE_ID';

sample/app.module.ts

@@ -2,13 +2,14 @@ import { Module } from '@nestjs/common';
 import { TelegrafModule } from '../lib';
 import { EchoService } from './echo.service';
 import { AppUpdate } from './app.update';
+import { HelloScene } from './scenes/hello.scene';
 
 @Module({
   imports: [
     TelegrafModule.forRoot({
-      token: '1467731595:AAHCvH65H9VQYKF9jE-E8c2rXsQBVAYseg8',
+      token: '1467731595:AAHCvH65H9VQYKF9jE-E8c2rXsQBVAYseg8', // Don't steal >:(
     }),
   ],
-  providers: [EchoService, AppUpdate],
+  providers: [EchoService, AppUpdate, HelloScene],
 })
 export class AppModule {}

sample/app.update.ts

@@ -1,13 +1,14 @@
-import { Telegraf } from 'telegraf';
-import { Help, InjectBot, On, Start, Update } from '../lib/decorators';
-import { Context } from '../lib/interfaces';
+import { SceneContext, Telegraf } from 'telegraf';
+import { Command, Help, InjectBot, On, Start, Update } from '../lib';
 import { EchoService } from './echo.service';
+import { HELLO_SCENE_ID } from './app.constants';
+import { Context } from './interfaces/context.interface';
 
 @Update()
 export class AppUpdate {
   constructor(
     @InjectBot()
-    private readonly bot: Telegraf<Context>,
+    private readonly bot: Telegraf<SceneContext>,
     private readonly echoService: EchoService,
   ) {}
 
@@ -22,6 +23,11 @@ export class AppUpdate {
     await ctx.reply('Send me any text');
   }
 
+  @Command('scene')
+  async onSceneCommand(ctx: Context): Promise<void> {
+    await ctx.scene.enter(HELLO_SCENE_ID);
+  }
+
   @On('message')
   async onMessage(ctx: Context): Promise<void> {
     console.log('New message received');

sample/interfaces/context.interface.ts

@@ -0,0 +1,4 @@
+import { SceneContext } from 'telegraf';
+
+// eslint-disable-next-line @typescript-eslint/no-empty-interface
+export interface Context extends SceneContext {}

sample/scenes/hello.scene.ts

@@ -0,0 +1,29 @@
+import { HELLO_SCENE_ID } from '../app.constants';
+import { Context } from '../interfaces/context.interface';
+import { Scene, SceneEnter, SceneLeave, Command } from '../../lib';
+
+@Scene(HELLO_SCENE_ID)
+export class HelloScene {
+  @SceneEnter()
+  async onSceneEnter(ctx: Context): Promise<void> {
+    console.log('Enter to scene');
+    await ctx.reply('Welcome on scene ✋');
+  }
+
+  @SceneLeave()
+  async onSceneLeave(): Promise<void> {
+    console.log('Leave from scene');
+    await ctx.reply('Bye Bye 👋');
+  }
+
+  @Command('hello')
+  async onHelloCommand(ctx: Context): Promise<void> {
+    console.log('Use say hello');
+    await ctx.reply('Hi');
+  }
+
+  @Command('leave')
+  async onLeaveCommand(ctx: Context): Promise<void> {
+    await ctx.scene.leave();
+  }
+}