using System;
using System.Collections.Generic;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using ShoeStore.Logic;

namespace ShoeStore.Test
{
    [TestClass]
    public sealed class ProductCalculatorTest
    {
        [TestMethod]
        public void CalculateDiscountPrice_NoOrderslnPreviousMonth_ReturnsPriceWithDiscount()
        {
            decimal price = 2000m;
            List<DateTime> orderDates = new List<DateTime>();
            DateTime calculationDate = new DateTime(2027,6,15);

            decimal result = ProductCalculator.CalculateDiscountedPrice(price, orderDates, calculationDate);

            Assert.AreEqual(1500m, result);
        }
        [TestMethod]
        public void CalculateDiscountPrice_OrederlnPreviousMonth_ReturnPriceWinthoutDiscount()
        {
            decimal price = 2000m;
            List<DateTime> orderDates = new List<DateTime> {new DateTime(2027,5,10)};
            DateTime calculationDate = new DateTime(2027,5,15);

            decimal result = ProductCalculator.CalculateDiscountedPrice(price, orderDates, calculationDate);

            Assert.AreEqual(1500m,result);
        }
        [TestMethod]
        public void GetQuantityLabel_FivePairs_ReturnsFew()
        {
            string result = ProductCalculator.GetQuantityLabel(5);

            Assert.AreEqual("мало", result);
        }
        [TestMethod]
        public void GetQuantityLabel_SixPairs_ReturnsMany()
        {
            string result = ProductCalculator.GetQuantityLabel(6);

            Assert.AreEqual("много", result);
        }
    }
}