using AcDream.Plugin.Abstractions;
using OpenAC.MosswartMassacre.Sharing;
using OpenAC.MosswartMassacre.Tests.Streams;

namespace OpenAC.MosswartMassacre.Tests.Sharing;

public sealed class VitalSharingOverlayTests
{
    [Fact]
    public void Paints_the_player_then_each_peer_with_distance()
    {
        using var harness = new PluginHarness("Mossy");
        harness.Host.Automation.Character.CurrentHealth = 50;
        harness.Host.Automation.Character.MaxHealth = 100;
        harness.Host.Automation.Navigation.Snapshot = new PluginNavigationSnapshot(
            true, false, 1u, StreamGoldenTests.Position(), false, false);
        harness.Login();
        var sharing = harness.Feature<VitalSharing>();
        sharing.Start();
        harness.Receive("{\"type\":\"share_position_update\",\"character_name\":\"Horan\",\"player_id\":1342177282,"
            + "\"ew\":" + ((double)33.65f + (100.0 / 240.0)).ToString(System.Globalization.CultureInfo.InvariantCulture)
            + ",\"ns\":" + ((double)42.55f).ToString(System.Globalization.CultureInfo.InvariantCulture)
            + ",\"z\":0,\"heading\":0}");
        harness.Receive("{\"type\":\"share_vital_update\",\"character_name\":\"Horan\",\"player_id\":1342177282,"
            + "\"current_health\":10,\"max_health\":100}");
        var painter = new RecordingPainter();

        harness.Feature<VitalSharingOverlay>().Paint(painter);

        Assert.Equal(["Mossy", "50%", "Horan", "10%", "100"], painter.Texts);
        Assert.Equal(3, painter.Lines);
    }

    [Fact]
    public void Nothing_is_painted_while_sharing_is_off()
    {
        using var harness = new PluginHarness("Mossy");
        harness.Login();
        var painter = new RecordingPainter();

        harness.Feature<VitalSharingOverlay>().Paint(painter);

        Assert.Empty(painter.Texts);
    }

    [Fact]
    public void Distances_read_as_the_original_wrote_them()
    {
        Assert.Equal((12).ToString("N0"), VitalSharingOverlay.FormatDistance(12.3));
        Assert.Equal((2.5).ToString("N1") + "k", VitalSharingOverlay.FormatDistance(2500));
        Assert.Equal((25).ToString("N0") + "k", VitalSharingOverlay.FormatDistance(25000));
    }

    private sealed class RecordingPainter : IPluginPainter
    {
        public List<string> Texts { get; } = [];

        public int Lines { get; private set; }

        public int Width => 300;

        public int Height => 300;

        public void Clear(PluginColor color)
        {
        }

        public void FillRect(PluginRect rect, PluginColor color)
        {
        }

        public void StrokeRect(PluginRect rect, PluginColor color, float thickness = 1f)
        {
        }

        public void DrawLine(PluginPoint from, PluginPoint to, PluginColor color, float thickness = 1f) => Lines++;

        public void DrawText(string text, PluginPoint position, PluginColor color, bool outline = false) => Texts.Add(text);

        public PluginSize MeasureText(string text) => new(text.Length * 6, 12);

        public void DrawImage(PluginImage image, PluginRect destination, PluginColor tint)
        {
        }

        public void DrawImageTransformed(PluginImage image, PluginRect destination, PluginColor tint,
            double rotationRadians, PluginPoint pivot, double scaleX = 1.0, double scaleY = 1.0)
        {
        }

        public void PushClip(PluginRect rect)
        {
        }

        public void PopClip()
        {
        }
    }
}