import { test } from 'node:test';
import assert from 'node:assert/strict';
import { Store } from '../src/store.js';
import { createLocalStorage } from './localstorage-shim.js';

function freshStore() {
  return new Store({ storage: createLocalStorage() });
}

test('Store: starts empty', () => {
  const s = freshStore();
  assert.equal(s.getTarget('strength'), null);
});

test('Store: setTarget validates via parseTarget', () => {
  const s = freshStore();
  assert.equal(s.setTarget('strength', '25M'), true);
  assert.equal(s.getTarget('strength'), 25_000_000);
});

test('Store: setTarget rejects invalid and keeps previous', () => {
  const s = freshStore();
  s.setTarget('strength', 25_000_000);
  assert.equal(s.setTarget('strength', 'abc'), false);
  assert.equal(s.getTarget('strength'), 25_000_000);
});

test('Store: targets are per-attribute', () => {
  const s = freshStore();
  s.setTarget('strength', 25_000_000);
  s.setTarget('speed', 50_000_000);
  assert.equal(s.getTarget('strength'), 25_000_000);
  assert.equal(s.getTarget('speed'), 50_000_000);
});

test('Store: persists across instances via storage', () => {
  const storage = createLocalStorage();
  const a = new Store({ storage });
  a.setTarget('strength', 25_000_000);
  const b = new Store({ storage });
  assert.equal(b.getTarget('strength'), 25_000_000);
});

test('Store: corrupted JSON is wiped with a warning', () => {
  const storage = createLocalStorage();
  storage.setItem('tat.targets', '{not json');
  const warnings = [];
  const s = new Store({ storage, onWarn: (m) => warnings.push(m) });
  assert.equal(s.getTarget('strength'), null);
  assert.equal(warnings.length, 1);
});