#include <QVBoxLayout>
#include "camerasetup.h"


SingleCamera::SingleCamera (QWidget *parent) : 
    CameraSetup(parent),
    camera1Preview(nullptr) {
        this->setLayout(new QVBoxLayout(this));
        camera1Preview = new CameraPreview();
        this->layout()->addWidget(camera1Preview);
}


CameraLayout SingleCamera::cameraLayout(){ 
    CameraLayout l;
    qDebug() << "Request layout";
    l.mode = CameraMode::single;
    l.layout = Layout::horizontal;
    l.devices.push_back(camera1Preview->device().toStdString());
    l.rois.push_back(camera1Preview->getRoi());
    return l;
}


SingleCamera::~SingleCamera(){
    if (camera1Preview != nullptr) {
        delete camera1Preview;
        camera1Preview = nullptr;
    }
}


DualCamera::DualCamera (QWidget *parent) : 
    CameraSetup(parent),
    camera1Preview(nullptr),
    camera2Preview(nullptr),
    primary_device("") {
        qDebug() << "DualCamera View constructor... ";
        std::cerr << "DualCamera View constructor... " << std::endl;
        this->setLayout(new QHBoxLayout(this));
        camera1Preview = new CameraPreview();
        camera2Preview = new CameraPreview();
        this->layout()->addWidget(camera1Preview);
        this->layout()->addWidget(camera2Preview);
        connect(camera1Preview, SIGNAL(roiUpdated(int, int, int, int)), this, SLOT(updateROI1(int, int, int, int)));
        connect(camera2Preview, SIGNAL(roiUpdated(int, int, int, int)), SLOT(updateROI2(int, int, int, int)));
        qDebug() << "... created";
}


void DualCamera::updateROI1(int x, int y, int w, int h) {
    qDebug() << "Update ROI1: x " << x << " y " << y << " w " << w << " h " << h;
    if (camera2Preview != nullptr) {
        camera2Preview->setSize(w, h);
    }
}

void DualCamera::updateROI2(int x, int y, int w, int h) {
    qDebug() << "Update ROI2: x " << x << " y " << y << " w " << w << " h " << h;
    if (camera1Preview != nullptr) {
        camera1Preview->setSize(w, h);
    }
}

void DualCamera::switchArrangement() {
        qDebug() << "switch camera arrangement";
        QHBoxLayout *hbox = (QHBoxLayout*)this->layout();
        if (hbox->direction() == QBoxLayout::LeftToRight) {
            hbox->setDirection(QBoxLayout::RightToLeft);
            primary_device = camera2Preview->device();
        } else {
            hbox->setDirection(QBoxLayout::LeftToRight);
            primary_device = camera1Preview->device();
        }
    }

CameraLayout DualCamera::cameraLayout() {
    CameraLayout l;
    qDebug() << "Request layout";
    l.mode = CameraMode::dual;
    l.layout = Layout::horizontal;
    if (camera1Preview->device() == primary_device) {
        l.rois.push_back(camera1Preview->getRoi());
        l.rois.push_back(camera2Preview->getRoi());
        l.devices.push_back(camera1Preview->device().toStdString());
        l.devices.push_back(camera2Preview->device().toStdString());
    } else {
        l.rois.push_back(camera2Preview->getRoi());
        l.rois.push_back(camera1Preview->getRoi());
        l.devices.push_back(camera2Preview->device().toStdString());
        l.devices.push_back(camera1Preview->device().toStdString());
    }
    return l;
}


DualCamera::~DualCamera(){
    if (camera1Preview != nullptr) {
        delete camera1Preview;
        camera1Preview = nullptr;
    }
    if (camera2Preview != nullptr) {
        delete camera2Preview;
        camera2Preview = nullptr;
    }
}