backend/src/app.module.ts

import { Module } from '@nestjs/common';
import { ConfigModule } from '@nestjs/config';
import { ThrottlerModule, ThrottlerGuard } from '@nestjs/throttler';
import { APP_GUARD } from '@nestjs/core';
import { ScheduleModule } from '@nestjs/schedule';
import { EventEmitterModule } from '@nestjs/event-emitter';

import { configuration } from './config';
import { PrismaModule } from './prisma';
import { AuthModule, JwtAuthGuard, RolesGuard } from './auth';
import { UsersModule } from './users';
import { EmailModule } from './email';
import { AgentTypesModule } from './agent-types';
import { AgentsModule } from './agents';
import { UploadModule } from './upload';
import { ProfileFieldsModule } from './profile-fields';
import { ConnectionRequestsModule } from './connection-requests';
import { MessagesModule } from './messages';
import { CmsModule } from './cms';
import { NotificationsModule } from './notifications';
import { AppController } from './app.controller';
import { AppService } from './app.service';

@Module({
  imports: [
    // Configuration
    ConfigModule.forRoot({
      isGlobal: true,
      load: [configuration],
      envFilePath: ['.env.local', '.env'],
    }),

    // Rate Limiting
    ThrottlerModule.forRoot([
      {
        ttl: 60000, // 60 seconds
        limit: 100, // 100 requests per minute
      },
    ]),

    // Task Scheduling
    ScheduleModule.forRoot(),

    // Event Emitter
    EventEmitterModule.forRoot(),

    // Database
    PrismaModule,

    // Feature Modules
    AuthModule,
    UsersModule,
    EmailModule,
    AgentTypesModule,
    AgentsModule,
    UploadModule,
    ProfileFieldsModule,
    ConnectionRequestsModule,
    MessagesModule,
    CmsModule,
    NotificationsModule,
  ],
  controllers: [AppController],
  providers: [
    AppService,
    // Global Rate Limiting Guard
    {
      provide: APP_GUARD,
      useClass: ThrottlerGuard,
    },
    // Global JWT Auth Guard
    {
      provide: APP_GUARD,
      useClass: JwtAuthGuard,
    },
    // Global Roles Guard
    {
      provide: APP_GUARD,
      useClass: RolesGuard,
    },
  ],
})
export class AppModule {}