feat(): make stage provider & export from module

lib/services/listeners-explorer.service.ts

@@ -12,6 +12,7 @@ import {
   PARAM_ARGS_METADATA,
   TELEGRAF_BOT_NAME,
   TELEGRAF_MODULE_OPTIONS,
+  TELEGRAF_STAGE,
 } from '../telegraf.constants';
 import { BaseExplorerService } from './base-explorer.service';
 import { TelegrafParamsFactory } from '../factories/telegraf-params-factory';
@@ -23,10 +24,11 @@ export class ListenersExplorerService
   extends BaseExplorerService
   implements OnModuleInit {
   private readonly telegrafParamsFactory = new TelegrafParamsFactory();
-  private readonly stage = new Scenes.Stage();
   private bot: Telegraf<any>;
 
   constructor(
+    @Inject(TELEGRAF_STAGE)
+    private readonly stage: Scenes.Stage<any>,
     @Inject(TELEGRAF_MODULE_OPTIONS)
     private readonly telegrafOptions: TelegrafModuleOptions,
     @Inject(TELEGRAF_BOT_NAME)

lib/stage.provider.ts

@@ -0,0 +1,8 @@
+import { Provider } from '@nestjs/common';
+import { Scenes } from 'telegraf';
+import { TELEGRAF_STAGE } from './telegraf.constants';
+
+export const telegrafStageProvider: Provider = {
+  provide: TELEGRAF_STAGE,
+  useClass: Scenes.Stage,
+};

lib/telegraf-core.module.ts

@@ -18,6 +18,7 @@ import {
   TELEGRAF_MODULE_OPTIONS,
 } from './telegraf.constants';
 import { ListenersExplorerService, MetadataAccessorService } from './services';
+import { telegrafStageProvider } from './stage.provider';
 import { createBotFactory, getBotToken } from './utils';
 
 @Global()
@@ -52,10 +53,15 @@ export class TelegrafCoreModule implements OnApplicationShutdown {
           provide: TELEGRAF_MODULE_OPTIONS,
           useValue: options,
         },
+        telegrafStageProvider,
+        telegrafBotNameProvider,
+        telegrafBotProvider,
+      ],
+      exports: [
+        telegrafStageProvider,
         telegrafBotNameProvider,
         telegrafBotProvider,
       ],
-      exports: [telegrafBotProvider],
     };
   }
 
@@ -82,10 +88,15 @@ export class TelegrafCoreModule implements OnApplicationShutdown {
       imports: options.imports,
       providers: [
         ...asyncProviders,
+        telegrafStageProvider,
+        telegrafBotNameProvider,
+        telegrafBotProvider,
+      ],
+      exports: [
+        telegrafStageProvider,
         telegrafBotNameProvider,
         telegrafBotProvider,
       ],
-      exports: [telegrafBotNameProvider, telegrafBotProvider],
     };
   }
 

lib/telegraf.constants.ts

@@ -9,3 +9,5 @@ export const SCENE_METADATA = 'SCENE_METADATA';
 export const LISTENER_METADATA = 'LISTENER_METADATA';
 
 export const PARAM_ARGS_METADATA = ROUTE_ARGS_METADATA;
+
+export const TELEGRAF_STAGE = 'TelegrafStage';