Background Tasks

async function generateProductContent(productIds: string[]) {
  const task = await agentbase.runAgent({
    message: `
      Generate content for ${productIds.length} products:
      - Product descriptions (200-300 words each)
      - SEO meta descriptions
      - Social media posts (3 per product)
      - Email marketing copy

      Products: ${productIds.join(', ')}

      Estimated time: 2-3 hours for ${productIds.length} products
    `,
    background: true,
    webhook: {
      url: 'https://api.company.com/webhooks/content-ready',
      events: ['completed', 'failed']
    }
  });

  // Update products database
  await db.products.updateMany(
    { id: { $in: productIds } },
    { contentGenerationTask: task.taskId, status: 'generating' }
  );

  return task.taskId;
}

// Daily report generation
async function generateDailyReport() {
  const task = await agentbase.runAgent({
    message: `
      Generate comprehensive daily report:
      1. Collect data from all sources
      2. Analyze sales, traffic, conversions
      3. Compare to previous day and week
      4. Identify trends and anomalies
      5. Create executive summary
      6. Generate detailed charts and tables
      7. Export to PDF and send to stakeholders
    `,
    background: true,
    session: await getReportingSession() // Maintains historical context
  });

  // Store for tracking
  await db.reports.create({
    date: new Date(),
    taskId: task.taskId,
    type: 'daily',
    status: 'generating'
  });
}

// Schedule with cron
cron.schedule('0 6 * * *', generateDailyReport); // Daily at 6 AM

async function runETLPipeline() {
  const task = await agentbase.runAgent({
    message: `
      Execute ETL pipeline:

      EXTRACT:
      - Download data from 15 different APIs
      - Fetch files from S3 buckets
      - Query production database snapshots

      TRANSFORM:
      - Clean and normalize data
      - Apply business logic transformations
      - Merge data from different sources
      - Calculate derived metrics

      LOAD:
      - Validate transformed data
      - Load into data warehouse
      - Update materialized views
      - Trigger downstream processes

      Handle errors gracefully and create detailed log.
    `,
    background: true,
    webhook: {
      url: 'https://api.company.com/webhooks/etl-complete',
      events: ['completed', 'failed']
    }
  });

  return task.taskId;
}

async function trainMLModel(datasetId: string) {
  const task = await agentbase.runAgent({
    message: `
      Train machine learning model:
      1. Load dataset ${datasetId}
      2. Split into train/validation/test sets
      3. Train multiple model architectures
      4. Perform hyperparameter tuning
      5. Evaluate on test set
      6. Select best performing model
      7. Save model artifacts
      8. Generate performance report

      Expected training time: 6-12 hours
    `,
    background: true
  });

  // Monitor training progress
  const monitor = setInterval(async () => {
    const status = await agentbase.getTaskStatus(task.taskId);

    await db.mlTraining.update(datasetId, {
      status: status.state,
      progress: status.progress,
      currentEpoch: status.metadata?.currentEpoch,
      bestAccuracy: status.metadata?.bestAccuracy
    });

    if (status.state === 'completed' || status.state === 'failed') {
      clearInterval(monitor);
    }
  }, 30000); // Every 30 seconds

  return task.taskId;
}

async function scrapeCompetitorData(urls: string[]) {
  const task = await agentbase.runAgent({
    message: `
      Scrape competitor websites:
      - URLs: ${urls.join(', ')}
      - Extract: pricing, products, features
      - Handle rate limits and retries
      - Respect robots.txt
      - Parse and structure data
      - Store in database

      ${urls.length} sites to scrape, estimated 3-4 hours
    `,
    background: true,
    webhook: {
      url: 'https://api.company.com/webhooks/scraping-complete',
      events: ['completed']
    }
  });

  return task.taskId;
}

// Comprehensive task management
class BackgroundTaskManager {
  async submitTask(message: string, options = {}) {
    const task = await agentbase.runAgent({
      message,
      background: true,
      ...options
    });

    // Store task metadata
    await db.tasks.create({
      taskId: task.taskId,
      message,
      status: 'queued',
      createdAt: new Date(),
      ...options
    });

    // Start monitoring
    this.monitorTask(task.taskId);

    return task.taskId;
  }

  async monitorTask(taskId: string) {
    const interval = setInterval(async () => {
      const status = await agentbase.getTaskStatus(taskId);

      // Update database
      await db.tasks.update(taskId, {
        status: status.state,
        progress: status.progress,
        updatedAt: new Date()
      });

      // Handle completion
      if (status.state === 'completed') {
        clearInterval(interval);
        await this.handleCompletion(taskId);
      }

      // Handle failure
      if (status.state === 'failed') {
        clearInterval(interval);
        await this.handleFailure(taskId, status.error);
      }
    }, 10000); // Check every 10 seconds
  }

  async handleCompletion(taskId: string) {
    const result = await agentbase.getTaskResult(taskId);

    await db.tasks.update(taskId, {
      status: 'completed',
      result: result.message,
      completedAt: new Date()
    });

    // Notify stakeholders
    await notifyCompletion(taskId);
  }

  async handleFailure(taskId: string, error: string) {
    await db.tasks.update(taskId, {
      status: 'failed',
      error,
      failedAt: new Date()
    });

    // Alert team
    await alertFailure(taskId, error);
  }

  async cancelTask(taskId: string) {
    await agentbase.cancelTask(taskId);

    await db.tasks.update(taskId, {
      status: 'cancelled',
      cancelledAt: new Date()
    });
  }

  async listActiveTasks() {
    return await db.tasks.find({
      status: { $in: ['queued', 'running'] }
    });
  }
}

// Limit concurrent background tasks
class TaskQueue {
  private maxConcurrent = 10;
  private active = 0;
  private queue: Array<() => Promise<any>> = [];

  async submit(message: string): Promise<string> {
    return new Promise((resolve, reject) => {
      const taskFn = async () => {
        try {
          this.active++;

          const task = await agentbase.runAgent({
            message,
            background: true
          });

          resolve(task.taskId);
        } catch (error) {
          reject(error);
        } finally {
          this.active--;
          this.processQueue();
        }
      };

      if (this.active < this.maxConcurrent) {
        taskFn();
      } else {
        this.queue.push(taskFn);
      }
    });
  }

  private processQueue() {
    while (this.active < this.maxConcurrent && this.queue.length > 0) {
      const taskFn = this.queue.shift();
      if (taskFn) taskFn();
    }
  }
}

// Use persistent session for background work
const reportingSession = await getReportingSession();

const task = await agentbase.runAgent({
  message: "Generate monthly report using historical data",
  session: reportingSession,  // Access to all previous reports
  background: true
});

const task = await agentbase.runAgent({
  message: "Long-running task",
  background: true,
  hooks: {
    onStart: async () => {
      await metrics.increment('tasks.started');
    },
    onProgress: async (progress) => {
      await updateUI(progress);
    },
    onComplete: async (result) => {
      await processResult(result);
      await metrics.increment('tasks.completed');
    },
    onError: async (error) => {
      await logger.error('Task failed', { error });
      await metrics.increment('tasks.failed');
    }
  }
});

// Stream trace events from background task
const task = await agentbase.runAgent({
  message: "Background analysis",
  background: true,
  stream: true  // Stream events even for background task
});

// Receive real-time updates
for await (const event of task.events) {
  console.log(`[${event.type}]`, event);

  if (event.type === 'agent_progress') {
    console.log(`Progress: ${event.progress}%`);
  }
}

// Optimize background task resource usage
const task = await agentbase.runAgent({
  message: "Process data efficiently",
  background: true,
  resources: {
    priority: "low",        // Use lower priority for background work
    memory: "medium",       // Request appropriate memory
    cpu: "low",            // Most background tasks don't need high CPU
    timeout: 12 * 60 * 60  // 12 hour timeout
  }
});