#!/usr/bin/env node
// Phase 5C §24 — the OPTIONAL, opt-in Google Workspace live-delivery test. Does NOTHING unless
// explicitly enabled — no test/regression run ever sends real email by accident.
//
// Usage (only when you actually have real Workspace credentials configured):
//   RUN_GWS_EMAIL_TEST=true \
//   TEST_EMAIL_RECIPIENT=you@example.com \
//   GOOGLE_SERVICE_ACCOUNT_JSON='{"client_email":"...","private_key":"..."}' \
//   EMAIL_FROM_ADDRESS=noreply@rootnodeacademy.com \
//   EMAIL_FROM_NAME="RootNode Academy" \
//   node infra/scripts/gws-email-test.js
//
// Sends exactly ONE clearly-marked test message to TEST_EMAIL_RECIPIENT — never a
// production/student address, never inferred from anything in the database. Run it once after
// setting up domain-wide delegation to confirm the adapter actually works against the real
// Gmail API, not as part of any regular regression pass (see docs/RUNBOOK_GOOGLE_WORKSPACE_EMAIL.md).

if (process.env.RUN_GWS_EMAIL_TEST !== 'true') {
  console.log('Skipped: set RUN_GWS_EMAIL_TEST=true to actually send a live test email. Nothing was sent.');
  process.exit(0);
}

const recipient = process.env.TEST_EMAIL_RECIPIENT;
if (!recipient) {
  console.error('Set TEST_EMAIL_RECIPIENT to the ONE address this test should send to — it is never inferred from anything else.');
  process.exit(1);
}

const provider = require('../../platform/api/src/email/gws-provider');

async function main() {
  console.log(`Sending one live test message via the Gmail API adapter to ${recipient}...`);
  const result = await provider.send({
    to: recipient,
    fromName: process.env.EMAIL_FROM_NAME || 'RootNode Academy',
    fromAddress: process.env.EMAIL_FROM_ADDRESS,
    replyTo: process.env.EMAIL_REPLY_TO,
    subject: '[RootNode Academy] Google Workspace adapter test',
    text: `This is a one-off test of RootNode Academy's Google Workspace email adapter (Gmail API, service account domain-wide delegation). If you received this, live delivery is working. Sent at ${new Date().toISOString()}.`,
    html: `<p>This is a one-off test of RootNode Academy's Google Workspace email adapter (Gmail API, service account domain-wide delegation).</p><p>If you received this, live delivery is working. Sent at ${new Date().toISOString()}.</p>`,
  });
  console.log('Provider accepted the message.');
  console.log('Provider message ID:', result.providerMessageId);
  console.log('\nGWS LIVE DELIVERY TEST: PASSED');
}

main().catch((e) => {
  console.error('GWS LIVE DELIVERY TEST: FAILED');
  console.error(`  ${e.errorCode || 'error'}: ${e.message}`);
  process.exit(1);
});