#ifndef COLORCOMPARISONPIXEL_H
#define COLORCOMPARISONPIXEL_H

#include <string>
#include <vector>
#include <map>
#include <unordered_map>

#include "ColorComparisonFace.h"

/*
// 不使用前向声明，直接定义简单的颜色结构
struct MeshColor {
    unsigned char r, g, b;
    
    MeshColor() : r(0), g(0), b(0) {}
    MeshColor(unsigned char r, unsigned char g, unsigned char b) 
        : r(r), g(g), b(b) {}
    
    unsigned char operator[](size_t idx) const {
        if (idx == 0) return r;
        if (idx == 1) return g;
        if (idx == 2) return b;
        return 0;
    }
};
*/

class ColorComparisonPixel {
private:
    struct ColorInfo {
        int faceId;
        MeshColor gaussianColor;
        MeshColor originalColor;
        float distance;
        float threshold;
        std::string filename;
    };
    
    // 使用嵌套map: faceid -> filename -> ColorInfo列表
    std::map<int, std::map<std::string, std::vector<ColorInfo>>> faceViewColorMap;
    std::string outputDir;
    
public:
    // 构造函数
    ColorComparisonPixel(const std::string& dir);
    
    // 析构函数
    virtual ~ColorComparisonPixel() {}
    
    // 添加颜色信息
    void addColorInfo(int faceId, 
                     const MeshColor& gaussianColor, 
                     const MeshColor& originalColor,
                     float distance, float threshold,
                     const std::string& filename);
    
    // 创建按faceid分组的对比图
    void createBatchComparison(int maxCellsPerRow = 10, int maxFacesPerImage = 50);
    
    // 保存颜色信息到CSV文件
    void saveColorInfoToFile();
    
    // 获取总face数
    int getTotalFaces() const;
    
    // 获取总记录数
    int getTotalRecords() const;
    
    // 获取faceid列表
    std::vector<int> getFaceIds() const;
};

#endif // COLORCOMPARISONPIXEL_H