import { test } from 'node:test';
import assert from 'node:assert/strict';
import { spawn } from 'node:child_process';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

const root = path.join(path.dirname(fileURLToPath(import.meta.url)), '..');

test('account-balance health and statement', async () => {
  const port = 18010;
  const books = path.join(os.tmpdir(), `books-health-${Date.now()}.json`);
  const child = spawn(process.execPath, ['src/server.js'], {
    cwd: root,
    env: { ...process.env, PORT: String(port), BOOKS_PATH: books },
    stdio: ['ignore', 'pipe', 'pipe'],
  });
  await new Promise((r) => setTimeout(r, 400));
  try {
    const h = await (await fetch(`http://127.0.0.1:${port}/health`)).json();
    assert.equal(h.role, 'zappier-account-balance');
    await fetch(`http://127.0.0.1:${port}/adjust`, {
      method: 'POST',
      headers: { 'content-type': 'application/json' },
      body: JSON.stringify({ customerId: 'c1', cents: 200, reason: 'test' }),
    });
    const st = await (await fetch(`http://127.0.0.1:${port}/statement/c1`)).json();
    assert.equal(st.prepaidCents, 200);
  } finally {
    child.kill('SIGTERM');
    fs.rmSync(books, { force: true });
  }
});