import { Injectable, OnModuleInit, OnModuleDestroy } from '@nestjs/common';
import { PrismaClient } from '@prisma/client';

@Injectable()
export class PrismaService extends PrismaClient implements OnModuleInit, OnModuleDestroy {
  constructor() {
    super({
      log: process.env.NODE_ENV === 'development' ? ['query', 'info', 'warn', 'error'] : ['error'],
    });
  }

  async onModuleInit() {
    await this.$connect();
  }

  async onModuleDestroy() {
    await this.$disconnect();
  }

  async cleanDatabase() {
    if (process.env.NODE_ENV === 'production') {
      throw new Error('Cannot clean database in production');
    }

    const models = Reflect.ownKeys(this).filter(
      (key): key is string =>
        typeof key === 'string' && !key.startsWith('_') && !key.startsWith('$'),
    );

    return Promise.all(
      models.map((modelKey) => {
        const model = this[modelKey as keyof this];
        if (model && typeof model === 'object' && 'deleteMany' in model) {
          return (model as any).deleteMany();
        }
        return Promise.resolve();
      }),
    );
  }
}