using System;
using System.Collections.Generic;
using System.Text;
using SUT = BrokerageLib;

namespace TestingLib
{
    public class TestThePaymentDate
    {
        public UnitTestInfo DateIs30DaysInFuture()
        {
            var testInfo = new UnitTestInfo();

            var pd = new SUT.PaymentSystem.PaymentDate();
            var sampleDate = DateTime.Parse("2019-12-16");

            var futureDate = pd.CalculateFuturePaymentDate(sampleDate);

            if (futureDate.Equals(sampleDate.AddDays(30)))
            {
                testInfo.DidTestPass = true;
            }
            else
            {
                testInfo.DidTestPass = false;
                testInfo.TestFailureMessage = $"Expected date is not 30 days in the future.";
            }
            testInfo.MethodName = "DateIs30DaysInFuture";
            return testInfo;
        }
        public UnitTestInfo ReturnsMondayIfProposedIsSunday()
        {
            var testInfo = new UnitTestInfo();

            var pd = new SUT.PaymentSystem.PaymentDate();
            var sampleDate = DateTime.Parse("2019-12-17");

            var futureDate = pd.CalculateFuturePaymentDate(sampleDate);

            if (futureDate.DayOfWeek == DayOfWeek.Monday)
            {
                testInfo.DidTestPass = true;
            }
            else
            {
                testInfo.DidTestPass = false;
                testInfo.TestFailureMessage = $"Expected date is not Monday.";
            }

            testInfo.MethodName = "ReturnsMondayIfProposedIsSunday";
            return testInfo;
        }
        public UnitTestInfo ReturnsMondayIfProposedIsSaturday()
        {
            var testInfo = new UnitTestInfo();

            var pd = new SUT.PaymentSystem.PaymentDate();
            var sampleDate = DateTime.Parse("2019-12-15");

            var futureDate = pd.CalculateFuturePaymentDate(sampleDate);

            if (futureDate.DayOfWeek == DayOfWeek.Monday)
            {
                testInfo.DidTestPass = true;
            }
            else
            {
                testInfo.DidTestPass = false;
                testInfo.TestFailureMessage = $"Expected date is not Monday.";
            }

            testInfo.MethodName = "ReturnsMondayIfProposedIsSaturday";
            return testInfo;
        }

    }

    public struct UnitTestInfo
    {
        public bool DidTestPass { get; set; }
        public string TestFailureMessage { get; set; }
        public string MethodName { get; set; }

    }
}