import { Injectable } from '@nestjs/common';
import { HealthCheckError, HealthIndicator, type HealthIndicatorResult } from '@nestjs/terminus';
import { PrismaService } from '@modules/shared';

@Injectable()
export class PrismaHealthIndicator extends HealthIndicator {
  constructor(private readonly prisma: PrismaService) {
    super();
  }

  async isHealthy(key: string): Promise<HealthIndicatorResult> {
    try {
      await this.prisma.$queryRawUnsafe('SELECT 1');
      return this.getStatus(key, true);
    } catch {
      throw new HealthCheckError('Database check failed', this.getStatus(key, false));
    }
  }
}