// Handle MailOdds webhook events and update Klaviyo profiles
// Configure your webhook endpoint to receive MailOdds events

function handleWebhook(payload) {
  const { event, to: email, is_bot, is_mpp } = payload;

  if (event === 'message.bounced') {
    // Add to MailOdds suppression list
    fetch('https://api.mailodds.com/v1/suppression', {
      method: 'POST',
      headers: {
        'Authorization': 'Bearer YOUR_API_KEY',
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({
        entries: [{ type: 'email', value: email, reason: 'hard_bounce' }]
      })
    });

    // Then suppress the profile in Klaviyo via their Profiles API
  }

  if (event === 'message.opened' && !is_bot && !is_mpp) {
    // Real human open: update Klaviyo profile engagement
    // Set custom property "$last_validated_open" via Klaviyo API
  }

  return { event, email, is_bot, is_mpp };
}

// Sync MailOdds suppression list with Klaviyo
// Check if an email is suppressed before sending
const profileEmail = 'subscriber@example.com';

const checkRes = await fetch('https://api.mailodds.com/v1/suppression/check', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({ email: profileEmail })
});
const check = await checkRes.json();

if (check.suppressed) {
  // Email is on blocklist: suppress in Klaviyo too via their API
  console.log('Suppressed:', profileEmail, 'Reason:', check.reason);
} else {
  console.log('Not suppressed:', profileEmail);
}

// Fetch validation health and push to Klaviyo profile properties
const response = await fetch('https://api.mailodds.com/v1/telemetry/summary', {
  headers: { 'Authorization': 'Bearer YOUR_API_KEY' }
});
const telemetry = await response.json();

// Use these values to update Klaviyo profile custom properties
// via the Klaviyo Profiles API:
//   "$validation_total"  = telemetry.totals.validations
//   "$deliverable_rate"  = telemetry.rates.deliverable
//   "$bounce_rate"       = telemetry.rates.undeliverable

const metrics = {
  total_validations: telemetry.totals.validations,
  deliverable_rate: telemetry.rates.deliverable,
  undeliverable_rate: telemetry.rates.undeliverable
};

// Bulk validate a Klaviyo list before sending a campaign
// Step 1: Fetch list emails from Klaviyo via their Profiles API
// Step 2: POST batch to MailOdds
const listEmails = ['a@example.com', 'b@example.com']; // From Klaviyo

const response = await fetch('https://api.mailodds.com/v1/validate/batch', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    emails: listEmails,
    depth: 'enhanced'
  })
});
const batch = await response.json();

// Poll for results:
// GET /v1/validate/batch/{job_id} for status and results
console.log('Job ID:', batch.job_id, 'Count:', listEmails.length);

// Monitor DMARC for your Klaviyo sending domain
const response = await fetch(
  'https://api.mailodds.com/v1/dmarc/domains/yourdomain.com/trend',
  { headers: { 'Authorization': 'Bearer YOUR_API_KEY' } }
);
const trend = await response.json();
// trend.policy, trend.data_points[].fail_percentage
// Alert if fail rate exceeds threshold

// Check sender health for domains used in Klaviyo
const response = await fetch('https://api.mailodds.com/v1/sender-health', {
  headers: { 'Authorization': 'Bearer YOUR_API_KEY' }
});
const health = await response.json();
// health.reputation_score (0-100)
// health.bounce_rate, health.complaint_rate
// health.authentication_health

// Cross-reference Klaviyo bounces with MailOdds data
const response = await fetch('https://api.mailodds.com/v1/bounce-analyses', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    emails: klaviyoBouncedEmails // Array of bounced emails from Klaviyo
  })
});
const analysis = await response.json();
// Classify: hard_bounce, soft_bounce, complaint
// Auto-suppress confirmed hard bounces

// Identify inactive contacts for Klaviyo list hygiene
const response = await fetch(
  'https://api.mailodds.com/v1/contacts/inactive-report?days=90',
  { headers: { 'Authorization': 'Bearer YOUR_API_KEY' } }
);
const report = await response.json();
// report.inactive_count, report.inactive_percentage
// Use to trigger Klaviyo sunset flow or list cleanup