using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;

public class BrokenGlassRenderFeature : ScriptableRendererFeature
{
    class BrokenGlassPass : ScriptableRenderPass
    {
        static readonly string ProfilerTag = "Broken Glass Effect";
        Material material;
        RenderTargetIdentifier source;
        RenderTargetHandle tempTexture;

        public float Value = 1f;
        public float Bullet_1 = 1f;
        public float Bullet_2 = 1f;
        public float Bullet_3 = 1f;
        public float Bullet_4 = 1f;
        public float Bullet_5 = 1f;
        public float Bullet_6 = 1f;
        public float Bullet_7 = 1f;
        public float Bullet_8 = 1f;
        public float Bullet_9 = 1f;
        public float Bullet_10 = 1f;
        public float Bullet_11 = 1f;
        public float Bullet_12 = 1f;
        public Texture2D GlassTexture;

        public BrokenGlassPass(Material mat)
        {
            material = mat;
            tempTexture.Init("_TempBrokenGlassTex");
        }

        public void Setup(RenderTargetIdentifier src)
        {
            source = src;
        }

        public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
        {
            if (material == null)
            {
                Debug.LogError("BrokenGlassPass: Material is null!");
                return;
            }

            if (GlassTexture == null)
            {
                Debug.LogError("BrokenGlassPass: GlassTexture is null!");
                return;
            }

            CommandBuffer cmd = CommandBufferPool.Get(ProfilerTag);

            source = renderingData.cameraData.renderer.cameraColorTarget;
            
            RenderTextureDescriptor opaqueDesc = renderingData.cameraData.cameraTargetDescriptor;
            opaqueDesc.depthBufferBits = 0;

            cmd.GetTemporaryRT(tempTexture.id, opaqueDesc);
            cmd.SetGlobalTexture("_MainTex2", GlassTexture);
            cmd.SetGlobalFloat("_Value", Value);
            cmd.SetGlobalFloat("_Bullet_1", Bullet_1);
            cmd.SetGlobalFloat("_Bullet_2", Bullet_2);
            cmd.SetGlobalFloat("_Bullet_3", Bullet_3);
            cmd.SetGlobalFloat("_Bullet_4", Bullet_4);
            cmd.SetGlobalFloat("_Bullet_5", Bullet_5);
            cmd.SetGlobalFloat("_Bullet_6", Bullet_6);
            cmd.SetGlobalFloat("_Bullet_7", Bullet_7);
            cmd.SetGlobalFloat("_Bullet_8", Bullet_8);
            cmd.SetGlobalFloat("_Bullet_9", Bullet_9);
            cmd.SetGlobalFloat("_Bullet_10", Bullet_10);
            cmd.SetGlobalFloat("_Bullet_11", Bullet_11);
            cmd.SetGlobalFloat("_Bullet_12", Bullet_12);

            Debug.Log($"BrokenGlassPass Parameters - Value: {Value}, Bullet_1: {Bullet_1}, Bullet_2: {Bullet_2}, Bullet_3: {Bullet_3}, Bullet_4: {Bullet_4}, Bullet_5: {Bullet_5}, Bullet_6: {Bullet_6}, Bullet_7: {Bullet_7}, Bullet_8: {Bullet_8}, Bullet_9: {Bullet_9}, Bullet_10: {Bullet_10}, Bullet_11: {Bullet_11}, Bullet_12: {Bullet_12}");

            Blit(cmd, source, tempTexture.Identifier(), material, 0);
            Blit(cmd, tempTexture.Identifier(), source);

            context.ExecuteCommandBuffer(cmd);
            CommandBufferPool.Release(cmd);
        }

        public override void FrameCleanup(CommandBuffer cmd)
        {
            if (tempTexture != RenderTargetHandle.CameraTarget)
                cmd.ReleaseTemporaryRT(tempTexture.id);
        }
    }

    [System.Serializable]
    public class BrokenGlassSettings
    {
        public Material Material;
        public Texture2D GlassTexture;
        [Range(0f, 2f)] public float Value = 1f;
        [Range(0f, 2f)] public float Bullet_1 = 1f;
        [Range(0f, 2f)] public float Bullet_2 = 1f;
        [Range(0f, 2f)] public float Bullet_3 = 1f;
        [Range(0f, 2f)] public float Bullet_4 = 1f;
        [Range(0f, 2f)] public float Bullet_5 = 1f;
        [Range(0f, 2f)] public float Bullet_6 = 1f;
        [Range(0f, 2f)] public float Bullet_7 = 1f;
        [Range(0f, 2f)] public float Bullet_8 = 1f;
        [Range(0f, 2f)] public float Bullet_9 = 1f;
        [Range(0f, 2f)] public float Bullet_10 = 1f;
        [Range(0f, 2f)] public float Bullet_11 = 1f;
        [Range(0f, 2f)] public float Bullet_12 = 1f;
        public RenderPassEvent RenderPassEvent = RenderPassEvent.AfterRenderingTransparents;
    }

    public BrokenGlassSettings settings = new BrokenGlassSettings();
    BrokenGlassPass pass;

    public override void Create()
    {
        if (settings.Material == null)
            return;

        pass = new BrokenGlassPass(settings.Material)
        {
            Value = settings.Value,
            Bullet_1 = settings.Bullet_1,
            Bullet_2 = settings.Bullet_2,
            Bullet_3 = settings.Bullet_3,
            Bullet_4 = settings.Bullet_4,
            Bullet_5 = settings.Bullet_5,
            Bullet_6 = settings.Bullet_6,
            Bullet_7 = settings.Bullet_7,
            Bullet_8 = settings.Bullet_8,
            Bullet_9 = settings.Bullet_9,
            Bullet_10 = settings.Bullet_10,
            Bullet_11 = settings.Bullet_11,
            Bullet_12 = settings.Bullet_12,
            GlassTexture = settings.GlassTexture,
            renderPassEvent = settings.RenderPassEvent
        };

        Debug.Log("BrokenGlassRenderFeature Created");
    }

    public override void AddRenderPasses(ScriptableRenderer renderer, ref RenderingData renderingData)
    {
        if (settings.Material != null)
        {
            renderer.EnqueuePass(pass);
        }
        Debug.Log($"Material is null: {settings.Material == null}");
    }
}