List violations statuses in an endpoint for admin filters

src/violations/api/violations-statuses.controller.ts

@@ -0,0 +1,34 @@
+import { Ability } from '@casl/ability';
+import {
+  Controller,
+  Get,
+  HttpCode,
+  UsePipes,
+  ValidationPipe,
+  UseGuards,
+} from '@nestjs/common';
+import { Action } from 'src/casl/action.enum';
+import { CheckPolicies } from 'src/casl/check-policies.decorator';
+import { PoliciesGuard } from 'src/casl/policies.guard';
+import { Violation, ViolationStatus } from '../entities/violation.entity';
+import { ViolationDto } from './violation.dto';
+
+@Controller('violations/statuses')
+export class ViolationStatusesController {
+  @Get()
+  @HttpCode(200)
+  @UseGuards(PoliciesGuard)
+  @CheckPolicies((ability: Ability) => ability.can(Action.Manage, Violation))
+  @UsePipes(new ValidationPipe({ transform: true }))
+  index(): ViolationDto[] {
+    const result: ViolationDto[] = [];
+
+    Object.values(ViolationStatus).forEach((status: ViolationStatus) => {
+      const v = new ViolationDto();
+      v.status = status;
+      result.push(v);
+    });
+
+    return result;
+  }
+}

src/violations/violations.module.ts

@@ -12,6 +12,7 @@ import { Violation } from './entities/violation.entity';
 import { ViolationsRepository } from './entities/violations.repository';
 import { UsersModule } from 'src/users/users.module';
 import { SectionsModule } from 'src/sections/sections.module';
+import { ViolationStatusesController } from './api/violations-statuses.controller';
 
 @Module({
   imports: [
@@ -22,6 +23,7 @@ import { SectionsModule } from 'src/sections/sections.module';
     SectionsModule,
   ],
   controllers: [
+    ViolationStatusesController,
     ViolationsController,
     ViolationCommentsController,
     ViolationAssigneesController,