// ==================== 银两系统测试 ====================

import { applyDailyIncome, canAfford, spendMoney } from '../src/engine/moneySystem.js';

let passCount = 0;
let failCount = 0;

function assert(condition, message) {
  if (condition) {
    passCount++;
  } else {
    failCount++;
    console.error('FAIL:', message);
  }
}

function testApplyDailyIncome() {
  // 正收入
  const state1 = { money: 100 };
  applyDailyIncome(state1, 50);
  assert(state1.money === 150, 'positive income should add to money');

  // 负收入
  const state2 = { money: 100 };
  applyDailyIncome(state2, -30);
  assert(state2.money === 70, 'negative income should subtract from money');

  // 负收入导致归零
  const state3 = { money: 20 };
  applyDailyIncome(state3, -50);
  assert(state3.money === 0, 'negative income below zero should clamp to 0');
}

function testCanAfford() {
  // 足够
  const state1 = { money: 100 };
  assert(canAfford(state1, 50) === true, 'should afford when money >= cost');

  // 不足够
  const state2 = { money: 30 };
  assert(canAfford(state2, 50) === false, 'should not afford when money < cost');

  // 刚好相等
  const state3 = { money: 50 };
  assert(canAfford(state3, 50) === true, 'should afford when money === cost');
}

function testSpendMoney() {
  // 成功消费
  const state1 = { money: 100 };
  const result1 = spendMoney(state1, 40);
  assert(result1 === true, 'spendMoney should return true on success');
  assert(state1.money === 60, 'money should decrease after spending');

  // 余额不足
  const state2 = { money: 30 };
  const result2 = spendMoney(state2, 50);
  assert(result2 === false, 'spendMoney should return false when insufficient funds');
  assert(state2.money === 30, 'money should remain unchanged when spending fails');
}

// 运行测试
testApplyDailyIncome();
testCanAfford();
testSpendMoney();

if (failCount === 0) {
  console.log('All moneySystem tests PASS');
} else {
  console.log(`${passCount} passed, ${failCount} failed`);
  process.exit(1);
}