import { DynamicModule, MiddlewareConsumer, Module, NestModule } from '@nestjs/common';
import { TypeOrmModule } from '@nestjs/typeorm';
import { ConfigService } from '@nestjs/config';
import { TenantContextMiddleware } from './tenant-context.middleware';
import { SnakeNamingStrategy } from './snake-naming.strategy';

@Module({})
export class DatabaseModule implements NestModule {
  configure(consumer: MiddlewareConsumer) {
    consumer.apply(TenantContextMiddleware).forRoutes('*');
  }

  static forRoot(): DynamicModule {
    return {
      module: DatabaseModule,
      imports: [
        TypeOrmModule.forRootAsync({
          inject: [ConfigService],
          useFactory: (config: ConfigService) => ({
            type: 'postgres',
            host: config.get('DB_HOST', 'localhost'),
            port: config.get<number>('DB_PORT', 5432),
            username: config.get('DB_USERNAME', 'it0'),
            password: config.get('DB_PASSWORD', 'it0_dev'),
            database: config.get('DB_DATABASE', 'it0'),
            autoLoadEntities: true,
            synchronize: config.get('NODE_ENV') === 'development',
            logging: config.get('DB_LOGGING', 'false') === 'true',
            namingStrategy: new SnakeNamingStrategy(),
          }),
        }),
      ],
      exports: [TypeOrmModule],
    };
  }
}