Implement endpoint for listing all protocols origins with translations

src/i18n/bg/origin.json

@@ -0,0 +1,4 @@
+{
+  "PROTOCOL_TI_BROISH": "Ти Броиш",
+  "PROTOCOL_CIK": "ЦИК"
+}

src/i18n/en/origin.json

@@ -0,0 +1,4 @@
+{
+  "PROTOCOL_TI_BROISH": "You Count",
+  "PROTOCOL_CIK": "CEC"
+}

src/protocols/api/protocols-origins.controller.ts

@@ -0,0 +1,50 @@
+import { Ability } from '@casl/ability';
+import {
+  Controller,
+  Get,
+  HttpCode,
+  UsePipes,
+  ValidationPipe,
+  UseGuards,
+} from '@nestjs/common';
+import { string } from 'joi';
+import { I18nService } from 'nestjs-i18n';
+import { Action } from 'src/casl/action.enum';
+import { CheckPolicies } from 'src/casl/check-policies.decorator';
+import { PoliciesGuard } from 'src/casl/policies.guard';
+import { Protocol, ProtocolOrigin } from '../entities/protocol.entity';
+import { ProtocolDto } from './protocol.dto';
+
+interface OriginResponse {
+  [key: string]: string;
+}
+
+@Controller('protocols/origins')
+export class ProtocolsOriginsController {
+  constructor(private readonly i18n: I18nService) {}
+
+  @Get()
+  @HttpCode(200)
+  @UseGuards(PoliciesGuard)
+  @CheckPolicies((ability: Ability) => ability.can(Action.Manage, Protocol))
+  @UsePipes(new ValidationPipe({ transform: true }))
+  async index(): Promise<OriginResponse[]> {
+    return await Promise.all(
+      Object.keys(ProtocolOrigin).map((originKey) =>
+        this.formatOrigin(originKey, ProtocolOrigin[originKey]),
+      ),
+    );
+  }
+
+  private async formatOrigin(
+    originKey: string,
+    originValue: string,
+  ): Promise<OriginResponse> {
+    return {
+      origin: originValue,
+      originLocalized: await this.i18n.translate(
+        `origin.PROTOCOL_${originKey}`,
+      ),
+    } as OriginResponse;
+  }
+}

src/protocols/protocols.module.ts

@@ -11,6 +11,7 @@ import { Violation } from '../violations/entities/violation.entity';
 import { ViolationsModule } from '../violations/violations.module';
 import { SectionsModule } from 'src/sections/sections.module';
 import { ProtocolsStatusesController } from './api/protocols-statuses.controller';
+import { ProtocolsOriginsController } from './api/protocols-origins.controller';
 
 @Module({
   imports: [
@@ -23,6 +24,7 @@ import { ProtocolsStatusesController } from './api/protocols-statuses.controller
   ],
   controllers: [
     ProtocolsStatusesController,
+    ProtocolsOriginsController,
     ProtocolsController,
     ProtocolAssigneesController,
   ],