using NUnit.Framework;
using System.IO;
using System.Reflection;
using TMPro;
using UnityEditor;
using UnityEngine;
using UnityEngine.UI;
using XGame;
using XGame.EditorTools;
using XWorld.Framework.ActorBehavior;

public sealed class GameLobbyControllerLayoutTests
{
    private const string PrefabPath = "Assets/Game/Art/UI/Prefab/UI_GameLobby.prefab";
    private const string Fighter3DJsonPath = "../Doc/UIPrefabCreater/UI_Fighter3D.json";
    private const string Fighter3DPrefabPath = "Assets/MiniGames/Fighter3D/res/UI/Prefab/UI_Fighter3D.prefab";
    private const string Fighter3DStagePrefabPath = "Assets/MiniGames/Fighter3D/res/Prefab/Fighter3D_BattleStage.prefab";
    private const string Fighter3DBehaviorConfigRoot = "Assets/MiniGames/Fighter3D/res/Config/ActorBehavior";

    [Test]
    public void LobbyPanel_DocksToLeftMiddle()
    {
        GameObject instance = CreateLobbyInstance();
        try
        {
            GameLobbyController controller = instance.GetComponent<GameLobbyController>();
            Assert.That(controller, Is.Not.Null);

            controller.BeginGames();

            RectTransform panel = FindRect(instance.transform, "Panel_Lobby");
            Assert.That(panel.anchorMin, Is.EqualTo(new Vector2(0f, 0.5f)));
            Assert.That(panel.anchorMax, Is.EqualTo(new Vector2(0f, 0.5f)));
            Assert.That(panel.pivot, Is.EqualTo(new Vector2(0f, 0.5f)));
            Assert.That(panel.anchoredPosition, Is.EqualTo(new Vector2(24f, 0f)));
            Assert.That(panel.sizeDelta, Is.EqualTo(new Vector2(520f, 296f)));
        }
        finally
        {
            Object.DestroyImmediate(instance);
        }
    }

    [Test]
    public void CollapseButton_StaysAttachedToLobbyPanelInLeftMiddleLayout()
    {
        GameObject instance = CreateLobbyInstance();
        try
        {
            GameLobbyController controller = instance.GetComponent<GameLobbyController>();
            Assert.That(controller, Is.Not.Null);

            controller.BeginGames();

            RectTransform button = FindRect(instance.transform, "Btn_Collapse");
            Assert.That(button.anchorMin, Is.EqualTo(new Vector2(0f, 0.5f)));
            Assert.That(button.anchorMax, Is.EqualTo(new Vector2(0f, 0.5f)));
            Assert.That(button.pivot, Is.EqualTo(new Vector2(0f, 0.5f)));
            Assert.That(button.anchoredPosition, Is.EqualTo(new Vector2(544f, 0f)));
            Assert.That(button.sizeDelta, Is.EqualTo(new Vector2(48f, 72f)));
        }
        finally
        {
            Object.DestroyImmediate(instance);
        }
    }

    [Test]
    public void LobbyGameListPoll_WaitsForRefreshInterval()
    {
        MethodInfo method = FindGameListPollMethod();

        Assert.That((bool)method.Invoke(null, new object[] { true, true, false, 4f, 5f }), Is.False);
        Assert.That((bool)method.Invoke(null, new object[] { true, true, false, 5f, 5f }), Is.True);
    }

    [Test]
    public void LobbyGameListPoll_DoesNotRunOutsideIdleConnectedLobby()
    {
        MethodInfo method = FindGameListPollMethod();

        Assert.That((bool)method.Invoke(null, new object[] { false, true, false, 5f, 5f }), Is.False);
        Assert.That((bool)method.Invoke(null, new object[] { true, false, false, 5f, 5f }), Is.False);
        Assert.That((bool)method.Invoke(null, new object[] { true, true, true, 5f, 5f }), Is.False);
    }

    [Test]
    public void Fighter3DFallbackHud_UsesUnity2022BuiltinFont()
    {
        string source = File.ReadAllText("Assets/MiniGames/Fighter3D/scripts~/Client/FighterGameClient.cs");

        Assert.That(source, Does.Contain("LegacyRuntime.ttf"));
        Assert.That(source, Does.Not.Contain("Arial.ttf"));
    }

    [Test]
    public void Fighter3DHudSource_CanBindGeneratedTmpText()
    {
        string source = File.ReadAllText("Assets/MiniGames/Fighter3D/scripts~/Client/FighterGameClient.cs");

        Assert.That(source, Does.Contain("using TMPro;"));
        Assert.That(source, Does.Contain("TMP_Text"));
    }

    [Test]
    public void Fighter3DClientSource_UsesCommonActorPresentation()
    {
        string source = File.ReadAllText("Assets/MiniGames/Fighter3D/scripts~/Client/FighterGameClient.cs");

        Assert.That(source, Does.Contain("MiniGameActorPresentation"));
        Assert.That(source, Does.Contain(Fighter3DBehaviorConfigRoot));
        Assert.That(source, Does.Not.Contain(Fighter3DStagePrefabPath));
        Assert.That(source, Does.Not.Contain("OnStagePrefabLoaded"));
        Assert.That(source, Does.Not.Contain("FighterStage"));
    }

    [Test]
    public void Fighter3DBehaviorConfigs_AreMiniGameScopedAndValid()
    {
        string skillJson = ReadAssetText(Fighter3DBehaviorConfigRoot + "/fighter3d_skill.json");
        string flyObjectJson = ReadAssetText(Fighter3DBehaviorConfigRoot + "/fighter3d_flyobj.json");
        string buffJson = ReadAssetText(Fighter3DBehaviorConfigRoot + "/fighter3d_buff.json");

        BehaviorConfigCatalog catalog = BehaviorConfigCatalog.LoadFromJson("fighter3d", skillJson, flyObjectJson, buffJson);

        Assert.That(catalog.Type, Is.EqualTo("fighter3d"));
        Assert.That(catalog.Behaviors.ContainsKey("fighter3d_light"), Is.True);
        Assert.That(catalog.Behaviors.ContainsKey("fighter3d_heavy"), Is.True);
        Assert.That(catalog.FlyObjects.ContainsKey("fighter3d_blade_wave"), Is.True);
    }

    [Test]
    public void Fighter3DUiJson_PassesPrefabBuilderValidation()
    {
        ValidationResult result = JsonUIPrefabBuilder.Validate(Fighter3DJsonPath);

        Assert.That(result.Ok, Is.True, string.Join("\n", result.Errors));
    }

    [Test]
    public void Fighter3DPrefab_ProvidesHudBindings()
    {
        GameObject prefab = AssetDatabase.LoadAssetAtPath<GameObject>(Fighter3DPrefabPath);

        Assert.That(prefab, Is.Not.Null);
        Assert.That(FindComponent<TextMeshProUGUI>(prefab.transform, "Txt_Title"), Is.Not.Null);
        Assert.That(FindComponent<TextMeshProUGUI>(prefab.transform, "Txt_Left"), Is.Not.Null);
        Assert.That(FindComponent<TextMeshProUGUI>(prefab.transform, "Txt_Right"), Is.Not.Null);
        Image leftHp = FindComponent<Image>(prefab.transform, "Img_LeftHpFill");
        Image rightHp = FindComponent<Image>(prefab.transform, "Img_RightHpFill");

        Assert.That(leftHp, Is.Not.Null);
        Assert.That(rightHp, Is.Not.Null);
        Assert.That(leftHp.type, Is.EqualTo(Image.Type.Filled));
        Assert.That(leftHp.fillMethod, Is.EqualTo(Image.FillMethod.Horizontal));
        Assert.That(rightHp.type, Is.EqualTo(Image.Type.Filled));
        Assert.That(rightHp.fillMethod, Is.EqualTo(Image.FillMethod.Horizontal));
    }

    private static GameObject CreateLobbyInstance()
    {
        GameObject prefab = AssetDatabase.LoadAssetAtPath<GameObject>(PrefabPath);
        Assert.That(prefab, Is.Not.Null);

        return Object.Instantiate(prefab);
    }

    private static RectTransform FindRect(Transform root, string name)
    {
        Transform child = root.FindTransform(name);
        Assert.That(child, Is.Not.Null);

        RectTransform rect = child.GetComponent<RectTransform>();
        Assert.That(rect, Is.Not.Null);
        return rect;
    }

    private static MethodInfo FindGameListPollMethod()
    {
        MethodInfo method = typeof(CSharpClientApp).GetMethod(
            "ShouldPollGameList",
            BindingFlags.Static | BindingFlags.NonPublic);
        Assert.That(method, Is.Not.Null);
        return method;
    }

    private static T FindComponent<T>(Transform root, string name) where T : Component
    {
        Transform child = root.FindTransform(name);
        return child == null ? null : child.GetComponent<T>();
    }

    private static string ReadAssetText(string assetPath)
    {
        TextAsset asset = AssetDatabase.LoadAssetAtPath<TextAsset>(assetPath);
        Assert.That(asset, Is.Not.Null, assetPath);
        return asset.text;
    }
}