hotfix: fix month/year validation

Author: sideseal

Diff for: src/rotation/pipe/month-validation.pipe.ts

@@ -4,9 +4,12 @@ import { BadRequestException, Injectable, PipeTransform } from '@nestjs/common';
 export class MonthValidationPipe implements PipeTransform {
   transform(value: any) {
     const month = parseInt(value, 10);
-    if (isNaN(month) || month < 1 || month > 12) {
+    if (isNaN(month) || month === null) {
+      return 0;
+    } else if (month < 1 || month > 12) {
       throw new BadRequestException(`Invalid month: ${value}`);
+    } else {
+      return value;
     }
-    return value;
   }
 }

Diff for: src/rotation/pipe/year-validation.pipe.ts

@@ -0,0 +1,15 @@
+import { BadRequestException, Injectable, PipeTransform } from '@nestjs/common';
+
+@Injectable()
+export class YearValidationPipe implements PipeTransform {
+  transform(value: any) {
+    const year = parseInt(value, 10);
+    if (isNaN(year) || year === null) {
+      return 0;
+    } else if (year < 2020 || year > 2100) {
+      throw new BadRequestException(`Invalid year: ${value}`);
+    } else {
+      return value;
+    }
+  }
+}

Diff for: src/rotation/rotations.controller.ts

@@ -43,6 +43,7 @@ import { FindTodayRotationDto } from './dto/find-today-rotation.dto';
 import { FindRegistrationDto } from './dto/find-registration.dto';
 import { MonthValidationPipe } from './pipe/month-validation.pipe';
 import { FindAllRotationDto } from './dto/find-all-rotation.dto';
+import { YearValidationPipe } from './pipe/year-validation.pipe';
 
 @Controller('rotations')
 @ApiTags('rotations')
@@ -156,7 +157,7 @@ export class RotationsController {
   @ApiBadRequestResponse({ type: BadRequestExceptionBody })
   @ApiInternalServerErrorResponse({ type: InternalServerExceptionBody })
   findAllRotation(
-    @Query('year') year: number,
+    @Query('year', new YearValidationPipe()) year: number,
     @Query('month', new MonthValidationPipe()) month: number,
   ): Promise<FindAllRotationDto[]> {
     return this.rotationsService.findAllRotation(year, month);