feat(telegram): add help for telegram bot

back/src/app.module.ts

@@ -33,9 +33,9 @@ export class AppModule implements NestModule {
   public configure(consumer: MiddlewareConsumer) {
     this.telegramBot.init(this.moduleRef)
 
-    // if (this.config.isDev()) {
-    //   // in dev use long poll
-    //   this.telegramBot.startPolling()
-    // }
+    if (this.config.isDev()) {
+      // in dev use long poll
+      this.telegramBot.startPolling()
+    }
   }
 }

back/src/telegram/telegram.module.ts

@@ -2,17 +2,20 @@ import { MiddlewareConsumer, Module, NestModule } from '@nestjs/common'
 import { TelegramModule as OriginalTelegramModule } from 'nest-telegram'
 
 import { ConfigModule } from '@back/config/config.module'
+import { UtilsModule } from '@back/utils/utils.module'
 
 import { TelegramOptionsFactory } from './TelegramOptionsFactory'
+import { HelpActions } from './telegram/actions/HelpActions'
 
 @Module({
   imports: [
     OriginalTelegramModule.fromFactory({
       imports: [ConfigModule],
       useClass: TelegramOptionsFactory,
     }),
+    UtilsModule,
   ],
-  providers: [TelegramOptionsFactory],
+  providers: [TelegramOptionsFactory, HelpActions],
   exports: [OriginalTelegramModule],
 })
 export class TelegramModule implements NestModule {

back/src/telegram/telegram/actions/HelpActions.ts

@@ -0,0 +1,16 @@
+import { Injectable } from '@nestjs/common'
+import { Context, TelegramActionHandler } from 'nest-telegram'
+
+import { Templating } from '@back/utils/infrastructure/Templating/Templating'
+
+@Injectable()
+export class HelpActions {
+  public constructor(private readonly templating: Templating) {}
+
+  @TelegramActionHandler({ command: '/help' })
+  public async income(ctx: Context) {
+    const responseText = await this.templating.render('telegram/help', {})
+
+    await ctx.reply(responseText)
+  }
+}

back/src/user/presentation/telegram/actions/AuthActions.ts

@@ -3,6 +3,7 @@ import { TelegramActionHandler, Context, PipeContext } from 'nest-telegram'
 
 import { Authenticator } from '@back/user/application/Authenticator'
 import { Registrator } from '@back/user/application/Registrator'
+import { Templating } from '@back/utils/infrastructure/Templating/Templating'
 
 import { IsKnownUser } from '../transformer/IsKnownUser'
 
@@ -11,18 +12,19 @@ export class AuthActions {
   constructor(
     private readonly authenticator: Authenticator,
     private readonly registrator: Registrator,
+    private readonly templating: Templating,
   ) {}
 
   @TelegramActionHandler({ onStart: true })
   public async hello(
     ctx: Context,
     @PipeContext(IsKnownUser) loggedIn: boolean,
   ) {
-    await ctx.reply('Hello!')
+    const responseText = await this.templating.render('telegram/start', {
+      loggedIn,
+    })
 
-    await ctx.reply(
-      loggedIn ? 'Welcome back!' : 'To auth send me "/auth login password"',
-    )
+    await ctx.reply(responseText)
   }
 
   @TelegramActionHandler({ command: 'auth' })

back/src/user/user.module.ts

@@ -4,6 +4,7 @@ import { TypeOrmModule } from '@nestjs/typeorm'
 
 import { ConfigModule } from '@back/config/config.module'
 import { DbModule } from '@back/db/db.module'
+import { UtilsModule } from '@back/utils/utils.module'
 
 import { AuthController } from './presentation/http/controller/AuthController'
 import { ProfileController } from './presentation/http/controller/ProfileController'
@@ -29,6 +30,7 @@ import { PasswordEncoder } from './infrastructure/PasswordEncoder/PasswordEncode
 @Module({
   imports: [
     DbModule,
+    UtilsModule,
     TypeOrmModule.forFeature([User]),
     JwtModule.registerAsync({
       imports: [ConfigModule],

back/templates/telegram/help.hbs

@@ -0,0 +1,14 @@
+I am Checkmoney Robot
+
+My site — https://checkmoney.space
+Mirror — https://checkmoney.ml
+
+Available commands:
+
+To create outcome transaction:
+/outcome 100 usd Lunch
+
+To create income transaction:
+/income 10000 eur ESA
+
+Of course, you can use any amounts, currencies and comments.

back/templates/telegram/start.hbs

@@ -0,0 +1,5 @@
+Hello!
+
+{{#if loggedIn}}Welcome back{{else}}To auth send me "/auth login password"{{/if}}
+
+If you need help, just send me /help