import test from 'node:test';
import assert from 'node:assert/strict';
import { createOrder, transition, OrderState } from '../src/order.js';
import { toOrderDTO } from '../src/order-dto.js';
import { canRefund } from '../src/consumers/refund.js';
import { buildNotification } from '../src/consumers/notify.js';
import { countByStatus } from '../src/consumers/dashboard.js';

const dtoIn = (state) => {
  const order = createOrder({ amount: 100 });
  if (state === OrderState.SHIPPED) transition(order, OrderState.PAID);
  if (state !== OrderState.CREATED) transition(order, state);
  return toOrderDTO(order);
};

test('已支付和已发货的订单可以退款', () => {
  assert.equal(canRefund(dtoIn(OrderState.PAID)), true);
  assert.equal(canRefund(dtoIn(OrderState.SHIPPED)), true);
  assert.equal(canRefund(dtoIn(OrderState.CREATED)), false);
  assert.equal(canRefund(dtoIn(OrderState.CANCELLED)), false);
});

test('通知文案跟随订单状态', () => {
  assert.equal(buildNotification(dtoIn(OrderState.PAID)).text, '支付成功，等待发货');
  assert.equal(buildNotification(dtoIn(OrderState.CANCELLED)).text, '订单已取消');
});

test('看板按状态计数', () => {
  const counts = countByStatus([
    dtoIn(OrderState.PAID),
    dtoIn(OrderState.PAID),
    dtoIn(OrderState.CREATED),
  ]);
  assert.deepEqual(counts, { PAID: 2, CREATED: 1 });
});