/**
 * Prints the intake Lambda's six environment variables as the JSON that
 * `aws lambda update-function-configuration --environment` takes.
 *
 * ⚠️ THIS EXISTS SO THAT TWO PUBLISHED COMMITMENTS ARE NEVER RETYPED INTO A
 * SHELL COMMAND. `RESPONSE_TIME` and `NO_RETAINER_NOTICE` are read from
 * `src/data/site.ts` — the same constants `/contact/` renders — because a
 * hand-typed copy of the notice inside the handler had already dropped a clause
 * once (`docs/05`, and the handler's own comment on the constant). A deploy
 * procedure that asks an operator to paste a sentence is the same defect one
 * step further out, and the notice contains an EN DASH in "mediator–party",
 * which is exactly the character a retype loses.
 *
 * Resource names come from `AGENTS.md` §7 and are passed in, not defaulted from
 * a second copy here — except the two that are pure site facts.
 *
 * usage: node scripts/intake-env.mjs --table <name> --notify <addr> --from <addr>
 *        node scripts/intake-env.mjs ... --shell     # export lines instead
 */
import { CONTACT, NO_RETAINER_NOTICE, SITE } from '../src/data/site.ts';

const args = process.argv.slice(2);
const flag = (name) => {
  const i = args.indexOf(`--${name}`);
  return i === -1 ? undefined : args[i + 1];
};

const table = flag('table');
const notify = flag('notify');
const from = flag('from');
const missing = [
  ['--table', table],
  ['--notify', notify],
  ['--from', from],
]
  .filter(([, v]) => !v)
  .map(([k]) => k);

if (missing.length > 0) {
  console.error(`missing: ${missing.join(' ')}`);
  console.error(
    'usage: node scripts/intake-env.mjs --table <dynamodb-table> ' +
      '--notify <address> --from <ses-verified-address> [--shell]',
  );
  console.error('Resource names are in AGENTS.md §7.');
  process.exit(2);
}

/* The site origin is not a deploy-time choice: the handler compares the request
   Origin against it and redirects to pages ON it, so it must be the canonical
   origin `astro.config.mjs` builds against. */
const origin = SITE.url.replace(/\/$/, '');

const vars = {
  INTAKE_TABLE: table,
  SITE_ORIGIN: origin,
  NOTIFY_TO: notify,
  MAIL_FROM: from,
  RESPONSE_TIME: CONTACT.responseTime,
  NO_RETAINER_NOTICE,
};

/* Guards, not decoration. Each one is a failure this project has already had or
   has written down as the next one. */
for (const [k, v] of Object.entries(vars)) {
  if (typeof v !== 'string' || v.trim() === '') {
    throw new Error(
      `${k} resolved empty — the handler throws at cold start on that`,
    );
  }
}
if (!/^https:\/\//.test(origin)) {
  throw new Error(`SITE_ORIGIN must be an https origin, got ${origin}`);
}
/* The clause a hand-copy dropped. `docs/01` §/contact/ requires it, so its
   absence is a published-disclosure defect rather than a typo. */
if (!NO_RETAINER_NOTICE.includes('create a conflict check')) {
  throw new Error(
    'NO_RETAINER_NOTICE is missing its fourth clause about not itself creating ' +
      'a conflict check — docs/01 §/contact/ requires it. Do not deploy this.',
  );
}
if (!/–/.test(NO_RETAINER_NOTICE)) {
  throw new Error(
    'NO_RETAINER_NOTICE no longer contains the en dash in "mediator–party". ' +
      'Either the constant changed deliberately, or something re-typed it.',
  );
}
if (!/\btwo business days\b/.test(CONTACT.responseTime)) {
  throw new Error(
    `RESPONSE_TIME is "${CONTACT.responseTime}" — AGENTS.md §4/Q27 is a ` +
      'two-business-day commitment. If the commitment changed, /contact/, the ' +
      'bio and this all move together.',
  );
}

if (args.includes('--shell')) {
  for (const [k, v] of Object.entries(vars)) {
    console.log(`export ${k}=${JSON.stringify(v)}`);
  }
} else {
  console.log(JSON.stringify({ Variables: vars }));
}