#include "texturecrafter.h"

TextureCrafter::TextureCrafter(QObject *parent)
    : QObject{parent}
{}

void TextureCrafter::packChannels(QVector<QUrl> imagePaths) {
    QVector<QImage> sourceImages;
    int width = 0, height = 0;
    QImage::Format format = QImage::Format_RGB888;

    for (int i = 0; i < imagePaths.length(); i++) {
        // if the ui layer did its job this will always be a file:// url
        QString rawPath = imagePaths[i].path();
        QImage newImage(rawPath); // would this cause a use after free idk

        // we just use the first image's dimensions and force the others to conform hehe
        if (width == 0) {
            width = newImage.width();
        }
        if (height == 0) {
            height = newImage.height();
        }

        sourceImages.append(newImage);
    }

    QImage outImage(width, height, format);

    // theres probably a faster way to do this but eh
    for (int i = 0; i < width; i++) {
        for (int j = 0; j < height; j++) {
            int r, g, b;

            // too eepy for dry
            r = sourceImages.at(0).pixelColor(i, j).red();
            g = sourceImages.at(1).pixelColor(i, j).green();
            b = sourceImages.at(2).pixelColor(i, j).blue();

            QColor newColor(r, g, b);

            outImage.setPixelColor(i, j, newColor);
        }
    }

    outImage.save("/tmp/out.png");

    //do we need to close these??? idk lets hope qt handles it
}