import assert from "node:assert/strict";
import test from "node:test";
import { clampExecutableOrderQuantity } from "../../lib/autotrade/executable-order-quantity";
import {
  estimateBuyUnitCost,
  estimateOrderCost,
  resolveExecutionCostProfile,
} from "../../lib/autotrade/execution-cost";

test("SELL 차단: 보유 없음/매도가능 없음", () => {
  const result = clampExecutableOrderQuantity({
    side: "sell",
    requestedQuantity: 1,
    holdingQuantity: 0,
    sellableQuantity: 0,
  });

  assert.equal(result.ok, false);
  assert.equal(result.quantity, 0);
});

test("SELL 제한: 보유보다 큰 수량 또는 매도가능 부족 시 clamp", () => {
  const result = clampExecutableOrderQuantity({
    side: "sell",
    requestedQuantity: 5,
    holdingQuantity: 10,
    sellableQuantity: 3,
  });

  assert.equal(result.ok, true);
  assert.equal(result.quantity, 3);
  assert.equal(result.adjusted, true);
});

test("BUY 제한: 최대 매수 가능 수량으로 clamp", () => {
  const result = clampExecutableOrderQuantity({
    side: "buy",
    requestedQuantity: 4,
    maxBuyQuantity: 2,
  });

  assert.equal(result.ok, true);
  assert.equal(result.quantity, 2);
  assert.equal(result.adjusted, true);
});

test("수수료/세금 추정: buy/sell 순액 계산", () => {
  const profile = resolveExecutionCostProfile();
  const buyUnitCost = estimateBuyUnitCost(10_000, profile);
  const buy = estimateOrderCost({
    side: "buy",
    price: 10_000,
    quantity: 10,
    profile,
  });
  const sell = estimateOrderCost({
    side: "sell",
    price: 10_000,
    quantity: 10,
    profile,
  });

  assert.ok(buyUnitCost > 10_000);
  assert.ok(buy.netAmount > buy.grossAmount);
  assert.ok(sell.netAmount < sell.grossAmount);
  assert.ok(sell.taxAmount >= 0);
});