import { BadRequestException, Module, ValidationPipe } from '@nestjs/common';
import { AppController }  from './app.controller';
import { AppService }     from './app.service';
import { ArchivalModule } from './modules/archival/archival.module';
import { AuthenticationModule } from './modules/authentication/auth.module';
import { BankCodesModule }      from './modules/bank-codes/bank-codes.module';
import { BusinessLogicsModule } from './modules/business-logics/business-logics.module';
// import { CsvExportModule } from './modules/exports/csv-exports.module';
import { CustomersModule }  from './modules/customers/customers.module';
import { EmployeesModule }  from './modules/employees/employees.module';
import { ExpensesModule }   from './modules/expenses/expenses.module';
import { HealthModule }     from './health/health.module';
import { HealthController } from './health/health.controller';
import { LeaveRequestsModule } from './modules/leave-requests/leave-requests.module';
import { NotificationsModule } from './modules/notifications/notifications.module';
import { OauthSessionsModule } from './modules/oauth-sessions/oauth-sessions.module';
import { OvertimeService }  from './modules/business-logics/services/overtime.service';
import { PayperiodsModule } from './modules/pay-periods/pay-periods.module';
import { PrismaModule }     from './prisma/prisma.module';
import { ScheduleModule }   from '@nestjs/schedule';
import { ShiftsModule }     from './modules/shifts/shifts.module';
import { TimesheetsModule } from './modules/timesheets/timesheets.module';
import { UsersModule }      from './modules/users-management/users.module';
import { ConfigModule }     from '@nestjs/config';
import { APP_FILTER, APP_PIPE } from '@nestjs/core';
import { HttpExceptionFilter }  from './common/filters/http-exception.filter';
import { ValidationError }      from 'class-validator';

@Module({
  imports: [
    ArchivalModule,
    AuthenticationModule,
    BankCodesModule,
    BusinessLogicsModule,
    ConfigModule.forRoot({isGlobal: true}),
    // CsvExportModule,
    CustomersModule,
    EmployeesModule,
    ExpensesModule,
    HealthModule,
    LeaveRequestsModule,
    NotificationsModule,
    OauthSessionsModule,
    PayperiodsModule,
    PrismaModule,
    ScheduleModule.forRoot(),
    ShiftsModule,
    TimesheetsModule,
    UsersModule,
    ],
  controllers: [AppController, HealthController],
  providers: [
    AppService,
    OvertimeService,
    {
      provide: APP_FILTER,
      useClass: HttpExceptionFilter
    },
    {
      provide: APP_PIPE,
      useValue: new ValidationPipe({
        whitelist: true,
        forbidNonWhitelisted: true,
        transform: true,
        exceptionFactory: (errors: ValidationError[] = [])=> {
          const messages = errors.flatMap((e)=> Object.values(e.constraints ?? {}));
            return new BadRequestException({
            statusCode: 400,
            error: 'Bad Request',
            message: messages.length ? messages : errors,
          });
        },
      }),
    },
  ],
})
export class AppModule {}