import test from 'node:test';
import assert from 'node:assert/strict';
import { ResultSelection } from '../src/selection-state.ts';

test('restores intended result after temporary absence across empty and fallback responses', () => {
  const selection = new ResultSelection();
  selection.begin('supplier/all');
  assert.equal(selection.resolve(['supplier', 'retry']), 0);
  assert.equal(selection.resolve(['retry']), 0);
  assert.equal(selection.resolve([]), -1);
  assert.equal(selection.resolve(['retry', 'supplier']), 1);
});

test('explicit user navigation supersedes the hidden result even when choosing the fallback', () => {
  const selection = new ResultSelection();
  selection.begin('supplier/all');
  selection.resolve(['supplier', 'retry']);
  selection.resolve(['retry']);
  selection.choose('retry');
  assert.equal(selection.resolve(['supplier', 'retry']), 1);
});

test('changed query or filters reset intent, while same-scope retries retain it', () => {
  const selection = new ResultSelection();
  selection.begin('supplier/all');
  selection.resolve(['supplier', 'retry']);
  selection.choose('retry');
  selection.begin('supplier/all');
  assert.equal(selection.resolve(['supplier', 'retry']), 1);
  selection.begin('supplier/code');
  assert.equal(selection.resolve(['code', 'retry']), 0);
  selection.begin('garden/code');
  assert.equal(selection.resolve(['garden', 'code']), 0);
  selection.begin('');
  selection.begin('garden/code');
  assert.equal(selection.resolve(['code', 'garden']), 0);
});

test('initially empty search establishes its first choice only when results arrive', () => {
  const selection = new ResultSelection();
  selection.begin('new/all');
  assert.equal(selection.resolve([]), -1);
  assert.equal(selection.resolve(['new', 'other']), 0);
  assert.equal(selection.resolve(['other', 'new']), 1);
});