using Godot;

namespace Cirno.Scripts.Components.Actors._3D;

[Tool]
public partial class AnimatedShaderSprite3D : AnimatedSprite3D
{
    private bool _isConnected = false;
    private ShaderMaterial _shaderMaterial;

    public override void _Ready()
    {
        base._Ready();
        ConnectSignals();
        _shaderMaterial = (ShaderMaterial)MaterialOverride;

    }

    private void ConnectSignals()
    {
        if (_isConnected)
        {
            return;
        }

        _isConnected = true;
        FrameChanged += HandleFrameChanged;
    }

    protected void HandleFrameChanged()
    {
        _shaderMaterial.SetShaderParameter("tex", SpriteFrames.GetFrameTexture(Animation, Frame));
    }

    protected override void Dispose(bool disposing)
    {
        DisconnectSignals();
        base.Dispose(disposing);
    }

    private void DisconnectSignals()
    {
        if (!_isConnected)
        {
            return;
        }

        FrameChanged -= HandleFrameChanged;
    }

    // public override void _Process(double delta)
    // {
    //     ((ShaderMaterial)MaterialOverride).SetShaderParameter("albedo_texture", SpriteFrames.GetFrameTexture(Animation, Frame));
    //     
    //     ((ShaderMaterial)MaterialOverride).SetShaderParameter("billboard_mode", (int)this.GetBillboardMode());
    // }

    // [Export(PropertyHint.File)] public string ShaderPath { get; private set; }
    //
    // public override void _Ready()
    // {
    //     if (MaterialOverride is null)
    //     {
    //         ApplyMaterialOverride();
    //     }
    //     
    //     ApplyTexture();
    //     //texture_changed.connect(_apply_texture)
    // }
    //
    // private void ApplyMaterialOverride()
    // {
    //     var shaderMaterial = new ShaderMaterial();
    //     shaderMaterial.Shader = GD.Load<Shader>(ShaderPath);
    //     MaterialOverride = shaderMaterial;
    // }
    //
    // private void ApplyTexture()
    // {
    //     var shaderMaterial = MaterialOverride as ShaderMaterial;
    //     
    //     shaderMaterial.SetShaderParameter("sprite_texture", this.SpriteFrames.GetFrameTexture(Animation, Frame));
    // }
}