using System;
using Xunit;

namespace BlazorApp.Tests
{
    public class CalendarTests
    {
        [Fact]
        public void TestParseDuration()
        {
            // 1 week
            Assert.Equal(Data.Calendar.ParseDuration("P1W"), TimeSpan.FromDays(7));
            
            // 1 week and 2 days
            Assert.Equal(Data.Calendar.ParseDuration("P1W2D"), TimeSpan.FromDays(7 + 2));
            
            // 1 day
            Assert.Equal(Data.Calendar.ParseDuration("P1D"), TimeSpan.FromDays(1));
            Assert.Equal(Data.Calendar.ParseDuration("-P1D"), TimeSpan.FromDays(-1));

            // 1 day, 5 hours
            Assert.Equal(Data.Calendar.ParseDuration("P1DT5H"), TimeSpan.FromHours(24 + 5));
            
            // 5 hours
            Assert.Equal(Data.Calendar.ParseDuration("PT5H"), TimeSpan.FromHours(5));

            // 1 hours, 3 minutes, 1 second
            Assert.Equal(Data.Calendar.ParseDuration("PT1H03M01S"), TimeSpan.FromSeconds(3600 + 3 * 60 + 1));
            
            // 3 weeks, 4 days, 1 hour, 3 minutes, 1 second
            Assert.Equal(
                Data.Calendar.ParseDuration("P3W4DT1H03M01S"),
                TimeSpan.FromSeconds(3600 + 3 * 60 + 1) + TimeSpan.FromDays(3 * 7 + 4)
            );
            Assert.Equal(
                Data.Calendar.ParseDuration("-P3W4DT1H03M01S"),
                -(TimeSpan.FromSeconds(3600 + 3 * 60 + 1) + TimeSpan.FromDays(3 * 7 + 4))
            );
        }
    }
}