const test = require('node:test');
const assert = require('node:assert/strict');

const NodeClass = require('../../src/nodeClass');
const commands = require('../../src/commands');
const { createRegistry } = require('generalFunctions');
const { makeNodeStub, makeREDStub } = require('../helpers/factories');

// Post-refactor: dispatch goes through the commands registry built by
// BaseNodeAdapter (this._commands). We seed the registry on a prototype-
// derived instance, then drive _attachInputHandler the same way the live
// adapter would.

test('input handler routes legacy topic aliases to engine setters', async () => {
  const inst = Object.create(NodeClass.prototype);
  const node = makeNodeStub();
  const calls = [];

  const source = {
    logger: { warn: () => {}, info: () => {}, debug: () => {}, error: () => {} },
    updateState(t) { calls.push(['clock', t]); },
    childRegistrationUtils: {
      registerChild(childSource, position) { calls.push(['registerChild', childSource, position]); },
    },
  };

  Object.defineProperty(source, 'setInfluent',    { set(v) { calls.push(['Fluent',      v]); } });
  Object.defineProperty(source, 'setOTR',         { set(v) { calls.push(['OTR',         v]); } });
  Object.defineProperty(source, 'setTemperature', { set(v) { calls.push(['Temperature', v]); } });
  Object.defineProperty(source, 'setDispersion',  { set(v) { calls.push(['Dispersion',  v]); } });

  inst.node = node;
  inst.RED = makeREDStub({ childA: { source: { id: 'child-source-A' } } });
  inst.source = source;
  inst._commands = createRegistry(commands, { logger: source.logger });
  inst._attachInputHandler();

  const onInput = node._handlers.input;
  let doneCount = 0;
  const done = () => { doneCount += 1; };

  await onInput({ topic: 'clock', timestamp: 1000 }, () => {}, done);
  await onInput({ topic: 'Fluent', payload: { inlet: 0, F: 10, C: [] } }, () => {}, done);
  await onInput({ topic: 'OTR', payload: 3.5 }, () => {}, done);
  await onInput({ topic: 'Temperature', payload: 18.2 }, () => {}, done);
  await onInput({ topic: 'Dispersion', payload: 0.2 }, () => {}, done);
  await onInput({ topic: 'registerChild', payload: 'childA', positionVsParent: 'upstream' }, () => {}, done);

  assert.equal(doneCount, 6);
  assert.deepEqual(calls[0], ['clock', 1000]);
  assert.equal(calls.some((x) => x[0] === 'Fluent'), true);
  assert.equal(calls.some((x) => x[0] === 'OTR'), true);
  assert.equal(calls.some((x) => x[0] === 'Temperature'), true);
  assert.equal(calls.some((x) => x[0] === 'Dispersion'), true);
  assert.deepEqual(calls.at(-1), ['registerChild', { id: 'child-source-A' }, 'upstream']);
});