Initial commit

src/games/pipe/game.pipe.ts

@@ -0,0 +1,42 @@
+import {
+  PipeTransform,
+  Injectable,
+  HttpException,
+  HttpStatus,
+} from '@nestjs/common';
+
+import { Game } from '../schemas/game.schema';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository } from 'typeorm';
+
+@Injectable()
+export class GamePipe implements PipeTransform {
+  constructor(@InjectRepository(Game) private gameRepository: Repository<Game>) {}
+
+  async transform(value: any) {
+    const game = await this.gameRepository.findBy({id: value});
+    if (!game) {
+      throw new HttpException('Game not found', HttpStatus.NOT_FOUND);
+    }
+    return game;
+  }
+}
+
+@Injectable()
+export class GameStartedPipe implements PipeTransform {
+  constructor(@InjectRepository(Game) private gameRepository: Repository<Game>) {}
+
+  async transform(value: any) {
+    const game = await this.gameRepository.findBy({id: value});
+    if (!game) {
+      throw new HttpException('Game not found', HttpStatus.NOT_FOUND);
+    }
+    if (!game.started) {
+      throw new HttpException(
+        'The game must be started',
+        HttpStatus.BAD_REQUEST,
+      );
+    }
+    return game;
+  }
+}