import { SharedBullAsyncConfiguration } from "@nestjs/bullmq";
import { ConfigService } from "@nestjs/config";

export function bullMqConfig(): SharedBullAsyncConfiguration {
  return {
    inject: [ConfigService],
    useFactory: async (configService: ConfigService) => ({
      connection: {
        url: configService.getOrThrow<string>("REDIS_URI"),
      },
      defaultJobOptions: {
        removeOnComplete: 2000, // Consider lower values in high-volume production
        removeOnFail: 5000, // Consider lower values to reduce Redis memory usage
        attempts: 3, // Reasonable default, adjust based on job criticality
        backoff: { type: "exponential", delay: 2000 }, // Consider adding for better retry behavior
      },
    }),
  };
}