namespace HSchool.Simulation.Tests;

public class SchoolTests
{
    private static readonly DateTime Start = new(2012, 4, 3, 6, 0, 0, DateTimeKind.Utc);

    [Fact]
    public void Create_StartsRunningAtTheStartDate()
    {
        using var school = School.Create(1, "Гимназия", Start);

        Assert.Equal(1, school.Id);
        Assert.Equal("Гимназия", school.Name);
        Assert.Equal(Start, school.Clock.Time);
        Assert.True(school.Clock.IsRunning);
        Assert.Equal(ClockSpeed.DefaultIndex, school.Clock.SpeedIndex);
    }

    [Fact]
    public void Load_RestoresTimePauseAndSpeed()
    {
        var time = Start.AddHours(3);
        using var school = School.Load(7, "Сейв", time, running: false, speedIndex: 3);

        Assert.Equal(7, school.Id);
        Assert.Equal("Сейв", school.Name);
        Assert.Equal(time, school.Clock.Time);
        Assert.False(school.Clock.IsRunning);
        Assert.Equal(3, school.Clock.SpeedIndex);
        Assert.Equal(DateTimeKind.Utc, school.Clock.Time.Kind);
    }

    [Fact]
    public void Load_PausedSchool_DoesNotMoveOnTick()
    {
        using var school = School.Load(1, "Пауза", Start.AddMinutes(12), running: false, speedIndex: 4);

        school.Tick(1d / 20d, 5d);

        Assert.Equal(Start.AddMinutes(12), school.Clock.Time);
    }
}