#include "img_util.h"
#include "opencv2/opencv.hpp"

namespace common {

bool isInPolygon(const sy_point* point_array, int point_count, const sy_point& center) {

    std::vector<cv::Point> polygon;
		for (size_t i = 0; i < point_count; i++)
		{
      polygon.push_back(cv::Point(point_array[i].x_, point_array[i].y_));
		}
		
		if (polygon.size() <= 0)
		{
			return false;
		}
 
    // 定义一个点
    cv::Point pt(center.x_, center.y_);
 
    // 使用pointPolygonTest函数判断点是否在多边形内
    double sign = cv::pointPolygonTest(polygon, pt, false);
    if (sign > 0)
    {
      return true;
    }
    
    return false;
}

void save_result(int height, int width, sy_point* point_array, int point_count, std::vector<sy_point> vec_pt) {
  cv::Mat image = cv::Mat::zeros(height, width, CV_8UC3);

  // 定义一个多边形的顶点数组（例如一个五边形）
  std::vector<cv::Point> polyPoints;
  for (size_t i = 0; i < point_count; i++)
  {
    polyPoints.push_back(cv::Point(point_array[i].x_, point_array[i].y_));
  }

  // 绘制多边形边界，颜色为绿色，线宽 2
  const cv::Point* pts = &polyPoints[0];
  int npts = (int)polyPoints.size();
  cv::polylines(image, &pts, &npts, 1, true, cv::Scalar(0, 255, 0), 2);

  for (size_t i = 0; i < vec_pt.size(); i++)
  {
    cv::circle(image, cv::Point(vec_pt[i].x_, vec_pt[i].y_), 2, cv::Scalar(0, 255, 255), -1);
  }

  cv::imwrite("gahter.jpg", image);
  
}

}