// Hybrid-Chain offline teaching model: accounting-and-payroll-systems
// Fictional fields/states; NOT an API client, authorization system or production implementation.
// No network calls, credentials, payments or file writes. Review before running.
// Requires Node.js 22+. Run: node --test accounting-and-payroll-systems.mjs
import test from 'node:test';
import assert from 'node:assert/strict';

export function inspect(record) {
  if (!record.approved) return 'APPROVAL_REQUIRED';
  if (record.journalPosted) return 'ALREADY_RECONCILED';
  if (record.providerState !== 'paid') return 'KEEP_OUTSTANDING';
  return 'READY_FOR_JOURNAL_REVIEW';
}

const baseline = {
  "approved": true,
  "providerState": "paid",
  "journalPosted": false
};
const cases = [
  {
    "name": "ready for accounting review",
    "patch": {},
    "expected": "READY_FOR_JOURNAL_REVIEW"
  },
  {
    "name": "unapproved source",
    "patch": {
      "approved": false
    },
    "expected": "APPROVAL_REQUIRED"
  },
  {
    "name": "failed provider outcome",
    "patch": {
      "providerState": "failed"
    },
    "expected": "KEEP_OUTSTANDING"
  },
  {
    "name": "duplicate notification",
    "patch": {
      "journalPosted": true
    },
    "expected": "ALREADY_RECONCILED"
  }
];

for (const example of cases) {
  test(example.name, () => {
    assert.equal(inspect({...baseline, ...example.patch}), example.expected);
  });
}