import { Worker, Job } from 'bullmq';
import { redisClient } from '../server';
import { config } from '../config';

interface ParseJobData {
  candidateId: string;
  s3Url: string;
  fileName: string;
  orgId: string;
}

export const resumeWorker = new Worker<ParseJobData>(
  'resume-parsing',
  async (job: Job<ParseJobData>) => {
    const { candidateId, s3Url } = job.data;
    console.log(`[Worker] Parsing resume for candidate ${candidateId}: ${s3Url}`);

    // Call AI service
    const response = await fetch(`${config.AI_SERVICE_URL}/screen`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'X-Internal-Key': config.AI_SERVICE_KEY,
      },
      body: JSON.stringify({ resume_url: s3Url, candidate_id: candidateId }),
    });

    if (!response.ok) {
      throw new Error(`AI service error: ${response.status}`);
    }

    const result = await response.json();
    console.log(`[Worker] Parsed resume:`, result);

    // TODO: update candidate.parsed_data and candidate.embedding in DB

    return result;
  },
  {
    connection: redisClient.duplicate(),
    concurrency: 5,
  }
);

resumeWorker.on('completed', (job) => {
  console.log(`[Worker] Job ${job.id} completed`);
});

resumeWorker.on('failed', (job, err) => {
  console.error(`[Worker] Job ${job?.id} failed:`, err);
});