using System;
using System.Collections.Generic;
using Ichni.RhythmGame.Beatmap;
using UnityEngine;

namespace Ichni.RhythmGame.ThemeBundles.DepartureToMultiverse
{
    public class DTMFramesFloor : EnvironmentObject
    {
        #region [暴露属性字段] Exposed Fields
        public float patternSizeX;
        public float patternSizeY;
        public float gridDensity;
        public float timeAngle;
        public float stepA;
        public float stepB;

        public bool enableOuterBorder;
        public Color outerBorderColor;
        public float outerBorderWidth;

        public Renderer meshRenderer;
        #endregion

        #region [生命周期与工厂] Lifecycle & Factory
        public static DTMFramesFloor GenerateElement(string elementName, Guid id, List<string> tags,
            bool isFirstGenerated, string themeBundleName, string objectName, GameElement parentElement, 
            bool isStatic, 
            float patternSizeX, float patternSizeY, float gridDensity, 
            float timeAngle, float stepA, float stepB, 
            bool enableOuterBorder, 
            Color outerBorderColor, 
            float outerBorderWidth)
        {
            DTMFramesFloor framesFloor = EnvironmentObject.GenerateElement(elementName, id, tags,
                isFirstGenerated, themeBundleName, objectName, parentElement, isStatic).GetComponent<DTMFramesFloor>();
            
            framesFloor.patternSizeX = patternSizeX;
            framesFloor.patternSizeY = patternSizeY;
            framesFloor.gridDensity = gridDensity;
            framesFloor.timeAngle = timeAngle;
            framesFloor.stepA = stepA;
            framesFloor.stepB = stepB;
            
            framesFloor.enableOuterBorder = enableOuterBorder;
            framesFloor.outerBorderColor = outerBorderColor;
            framesFloor.outerBorderWidth = outerBorderWidth;
            
            return framesFloor;
        }

        public override void FirstSetUpObject(bool isFirstGenerated)
        {
            if (meshRenderer == null)
                meshRenderer = GetComponentInChildren<Renderer>();
                
            meshRenderer.InitializeShader(); // 实例化材质 / Instantiate material
            UpdateMaterialProperties();
        }
        #endregion

        #region [效果核心逻辑] Core Effect Logic
        public void UpdateMaterialProperties()
        {
            if (meshRenderer != null && meshRenderer.material != null)
            {
                Material mat = meshRenderer.material;
                
                mat.SetVector("_PatternSize", new Vector4(patternSizeX, patternSizeY, 0, 0));
                mat.SetFloat("_GridDensity", gridDensity);
                mat.SetFloat("_TimeAngle", timeAngle);
                mat.SetFloat("_StepA", stepA);
                mat.SetFloat("_StepB", stepB);
                
                float borderOn = enableOuterBorder ? 1f : 0f;
                mat.SetFloat("_EnableOuterBorder", borderOn);
                if (enableOuterBorder)
                {
                    mat.EnableKeyword("_OUTER_BORDER_ON");
                }
                else
                {
                    mat.DisableKeyword("_OUTER_BORDER_ON");
                }
                
                mat.SetColor("_OuterBorderColor", outerBorderColor);
                mat.SetFloat("_OuterBorderWidth", outerBorderWidth);
                
                // Base Color and Alpha Sync (Unity Color -> HDR)
                mat.SetColor("_Color0", colorSubmodule.currentBaseColor); 
            }
        }

        public override void Refresh()
        {
            base.Refresh();
            // Sync environment color changes
            if (meshRenderer != null)
            {
                meshRenderer.material.SetColor("_Color0", colorSubmodule.currentBaseColor);
            }
        }
        #endregion
    }
}