namespace Mr.BrickAdventures.Progression.Tests;

public class ProfileTests
{
    private static readonly LevelId Level = LevelId.Of("village_1");

    [Fact]
    public void A_slower_run_does_not_replace_a_better_time()
    {
        var profile = Profile.Empty();

        Assert.True(profile.RecordTime(Level, LevelTime.Of(42.5)));
        Assert.False(profile.RecordTime(Level, LevelTime.Of(51.0)));

        Assert.Equal(LevelTime.Of(42.5), profile.BestTimeFor(Level));
    }

    [Fact]
    public void Unlocking_the_same_achievement_twice_announces_it_once()
    {
        // AchievementManager shows a popup and pushes to Steam on every unlock call, guarded only by
        // a Contains check on a list it reached into. Announcing only on the transition means
        // subscribers cannot double-fire regardless of how often they are told.
        var rescueTen = AchievementId.Of("rescue_ten_kids");
        var profile = Profile.Empty();

        profile.UnlockAchievement(rescueTen);
        profile.UnlockAchievement(rescueTen);

        Assert.True(profile.HasAchievement(rescueTen));
        Assert.Single(profile.DrainEvents().OfType<AchievementUnlocked>());
    }

    [Fact]
    public void Statistics_accumulate_and_an_unrecorded_one_reads_as_zero()
    {
        var profile = Profile.Empty();

        profile.Record(StatName.CoinsCollected, 5);
        profile.Record(StatName.CoinsCollected, 3);

        Assert.Equal(8, profile.ReadStat(StatName.CoinsCollected));
        Assert.Equal(0, profile.ReadStat(StatName.Deaths));
    }

    [Fact]
    public void A_statistic_cannot_be_decremented()
    {
        // IncrementStat currently takes any int. A lifetime counter that can go down is not a
        // lifetime counter, and nothing in the game has a reason to reduce one.
        var profile = Profile.Empty();

        Assert.Throws<ArgumentOutOfRangeException>(() => profile.Record(StatName.Deaths, -1));
        Assert.Throws<ArgumentOutOfRangeException>(() => profile.Record(StatName.Deaths, 0));
    }

    [Fact]
    public void Relocking_an_achievement_removes_it_and_lets_it_announce_again()
    {
        // Console-only. Note the asymmetry: unlocking is mirrored to Steam by a subscriber, but
        // relocking cannot be, because a Steam achievement cannot be un-earned.
        var rescueTen = AchievementId.Of("rescue_ten_kids");
        var profile = Profile.Empty();
        profile.UnlockAchievement(rescueTen);
        profile.DrainEvents();

        profile.RelockAchievement(rescueTen);

        Assert.False(profile.HasAchievement(rescueTen));

        profile.UnlockAchievement(rescueTen);
        Assert.Single(profile.DrainEvents().OfType<AchievementUnlocked>());
    }
}