using MultiversalDiplomacy.Model;

using NUnit.Framework;

namespace MultiversalDiplomacyTests;

public class UnitTests
{
    [Test]
    public void MovementTest()
    {
        World world = World.WithStandardMap();
        Location Mun = world.Map.GetLand("Mun"),
            Boh = world.Map.GetLand("Boh"),
            Tyr = world.Map.GetLand("Tyr");
        Season a0 = Season.First;
        Unit u1 = Unit.Build(Mun.Key, a0, "Austria", UnitType.Army);

        world = world.WithNewSeason(a0, out Season a1);
        Unit u2 = u1.Next(Boh.Key, a1);

        _ = world.WithNewSeason(a1, out Season a2);
        Unit u3 = u2.Next(Tyr.Key, a2);

        Assert.That(u3.Past, Is.EqualTo(u2.Key), "Missing unit past");
        Assert.That(u2.Past, Is.EqualTo(u1.Key), "Missing unit past");
        Assert.That(u1.Past, Is.Null, "Unexpected unit past");

        Assert.That(u1.Season, Is.EqualTo(a0), "Unexpected unit season");
        Assert.That(u2.Season, Is.EqualTo(a1), "Unexpected unit season");
        Assert.That(u3.Season, Is.EqualTo(a2), "Unexpected unit season");

        Assert.That(u1.Location, Is.EqualTo(Mun.Key), "Unexpected unit location");
        Assert.That(u2.Location, Is.EqualTo(Boh.Key), "Unexpected unit location");
        Assert.That(u3.Location, Is.EqualTo(Tyr.Key), "Unexpected unit location");
    }
}