import assert from 'node:assert/strict';
import test from 'node:test';
import { handleUnexpectedChildExit } from './dev-process-lifecycle.mjs';

function invokeExit({ code, signal, stopping = false }) {
  const shutdownCodes = [];
  const messages = [];
  const handled = handleUnexpectedChildExit({
    label: 'portal',
    code,
    signal,
    stopping,
    shutdown: (shutdownCode) => shutdownCodes.push(shutdownCode),
    log: (message) => messages.push(message),
  });
  return { handled, shutdownCodes, messages };
}

test('clean child exit shuts down the remaining dev stack as a failure', () => {
  const result = invokeExit({ code: 0, signal: null });

  assert.equal(result.handled, true);
  assert.deepEqual(result.shutdownCodes, [1]);
  assert.match(result.messages[0], /code 0/);
});

test('signal exit shuts down the remaining dev stack as a failure', () => {
  const result = invokeExit({ code: null, signal: 'SIGKILL' });

  assert.equal(result.handled, true);
  assert.deepEqual(result.shutdownCodes, [1]);
  assert.match(result.messages[0], /signal SIGKILL/);
});

test('non-zero child exit preserves its failure code', () => {
  const result = invokeExit({ code: 7, signal: null });

  assert.deepEqual(result.shutdownCodes, [7]);
});

test('child exits during an intentional shutdown are ignored', () => {
  const result = invokeExit({ code: 0, signal: null, stopping: true });

  assert.equal(result.handled, false);
  assert.deepEqual(result.shutdownCodes, []);
  assert.deepEqual(result.messages, []);
});