import { MiddlewareConsumer, Module, NestModule } from '@nestjs/common';
import { ConfigModule } from '@nestjs/config';
import { APP_GUARD, APP_INTERCEPTOR } from '@nestjs/core';
import { AuthModule } from './auth/auth.module';
import { JwtAuthGuard } from './auth/guards/jwt-auth.guard';
import { RolesGuard } from './auth/guards/roles.guard';
import { ForcePasswordChangeInterceptor } from './auth/interceptors/force-password-change.interceptor';
import { HealthModule } from './health/health.module';
import { LdapModule } from './ldap/ldap.module';
import { MailModule } from './mail/mail.module';
import { ModuleRegistryModule } from './module-registry/module-registry.module';
import { PrismaModule } from './prisma/prisma.module';
import { TenantMiddleware } from './tenant/tenant.middleware';
import { TenantModule } from './tenant/tenant.module';
import { UserModule } from './user/user.module';

@Module({
  imports: [
    ConfigModule.forRoot({ isGlobal: true }),
    PrismaModule,
    AuthModule,
    UserModule,
    TenantModule,
    HealthModule,
    MailModule,
    LdapModule,
    ModuleRegistryModule,
  ],
  providers: [
    // Global JWT guard: all routes require auth unless @Public()
    {
      provide: APP_GUARD,
      useClass: JwtAuthGuard,
    },
    // Global roles guard: checks @Roles() decorator
    {
      provide: APP_GUARD,
      useClass: RolesGuard,
    },
    // Global interceptor: forces password change if mustChangePassword=true (D-06 / Pitfall 5)
    {
      provide: APP_INTERCEPTOR,
      useClass: ForcePasswordChangeInterceptor,
    },
  ],
})
export class AppModule implements NestModule {
  configure(consumer: MiddlewareConsumer) {
    // TenantMiddleware runs AFTER AuthGuard (guards run first in NestJS pipeline)
    consumer.apply(TenantMiddleware).forRoutes('*');
  }
}