#include "image.hpp"

Image::Image () {
    
}

Mat Image::getBlank () {
    if (blank.empty()) {
        blank = Mat::zeros(Size(width, height), CV_8UC3);
    }
    return blank.clone();
}

Mat Image::loadImage (string& image_path, uint64_t& x, uint64_t& y, uint64_t& w, uint64_t& h) {
    string located_path = samples::findFile(image_path);
    Mat loaded = imread(located_path, IMREAD_COLOR);
    Mat resized;
    Mat image = getBlank();

    if (loaded.empty()) {
        cerr << "{ \"error\" : \"" << image_path << " empty\" }" << endl;
    } else {
        resize(loaded, resized, Size(w, h));
        
        cout << "{ \"loaded\" : \"" << image_path << "\", ";
        cout << "\"original\" : { \"w\" : " << loaded.cols << ", \"h\" : " << loaded.rows << " }, ";
        cout << "\"resized\" : { \"w\" : " << resized.cols << ", \"h\" : " << resized.rows << " } }" << endl;
        
        resized.copyTo(image(Rect(x, y, resized.cols, resized.rows)));
        flip(image, image, 0);

#if (CV_VERSION_MAJOR >= 4)
        cvtColor(image, image, cv::COLOR_BGR2RGB);
#else
        cvtColor(image, image, CV_BGR2RGB);
#endif
    }
    return image;
}