#include "Almond.h"
#include <QIntValidator>
#include <QFileDialog>
#include <QMessageBox>
#include <QGradient>
#include "gradientchoosedialog.h"

#include <cmath>

mnd::MandelGenerator* generateTest()
{
    mnd::Variable z{ "z" };
    mnd::Variable c{ "c" };
    mnd::Pow m{ {std::make_unique<mnd::Expression>(z), std::make_unique<mnd::Expression>(z)} };
    //mnd::Multiplication m{ std::make_unique<mnd::Expression>(z), std::make_unique<mnd::Expression>(z) };
    //mnd::Addition a1{ std::make_unique<mnd::Expression>(std::move(m)), std::make_unique<mnd::Expression>(c) };
    mnd::Addition a{ std::make_unique<mnd::Expression>(std::move(m)), std::make_unique<mnd::Expression>(c) };

    mnd::IterationFormula itf{ std::make_unique<mnd::Expression>(std::move(a)) };
    return new mnd::NaiveGenerator(std::move(itf), 1.0e-10);
}

Almond::Almond(QWidget* parent) :
    QMainWindow{ parent },
    mandelContext{ mnd::initializeContext() }
{
    ui.setupUi(this);

    auto form = mnd::parse("123");
    ::exit(0);

    mw = std::make_unique<MandelWidget>(mandelContext,
                                        &mandelContext.getDefaultGenerator(),
                                        ui.centralWidget);

    on_maxIterations_editingFinished();
    mw->setSmoothColoring(ui.smooth->isChecked());


    currentView = MANDELBROT;
    mandelGeneratorSave = &mandelContext.getDefaultGenerator();
    mandelViewSave = mw->getViewport();

    mw->setGenerator(generateTest());
    mw->setMaxIterations(200);

    QObject::connect(mw.get(), &MandelWidget::pointSelected, this, &Almond::pointSelected);
    ui.mainContainer->addWidget(mw.get());
    ui.maxIterations->setValidator(new QIntValidator(1, 1000000000, this));
    ui.backgroundProgress->setVisible(false);
    //ui.verticalLayout_left->addWidget(new MyGLWidget(ui.centralWidget));
    //mw->show();
}


Almond::~Almond(void)
{
}


void Almond::submitBackgroundTask(BackgroundTask* task)
{
    bool taken = QThreadPool::globalInstance()->tryTake(task->getRunnable());
    if (taken) {
        ui.backgroundProgress->setRange(0, 0);
        ui.backgroundProgress->setVisible(true);
    }
}


void Almond::backgroundTaskFinished(void)
{
}


void Almond::on_zoom_out_clicked()
{
    mw->zoom(2);
}


void Almond::on_zoom_in_clicked()
{
    mw->zoom(0.5);
}


void Almond::on_maxIterations_editingFinished()
{
    QString text = ui.maxIterations->text();
    int maxIter = text.toInt();
    mw->setMaxIterations(maxIter);
}


void Almond::on_chooseGradient_clicked()
{
    auto response = gcd.exec();
    auto gradient = gcd.getGradient();
    if (gradient)
        mw->setGradient(std::move(*gradient));
}


void Almond::on_exportVideo_clicked()
{
    ExportVideoInfo evi;
    evi.start = mnd::MandelViewport::standardView();
    evi.end = mw->getViewport();
    evi.gradient = mw->getGradient();
    ExportVideoDialog dialog(this, evi);
    //dialog.show();
    auto response = dialog.exec();
    printf("dialog executed\n"); fflush(stdout);
    if (response == 1) {
        mnd::MandelInfo mi;
        evi = dialog.getExportVideoInfo();
        //Video
        /*mi.maxIter = dialog.getMaxIterations();
        mi.view = mw->getViewport();
        mi.bWidth = dialog.getWidth();
        mi.bHeight = dialog.getHeight();
        mi.view.adjustAspectRatio(mi.bWidth, mi.bHeight);
        mnd::Generator& g = mandelContext.getDefaultGenerator();
        auto fmap = Bitmap<float>(mi.bWidth, mi.bHeight);
        g.generate(mi, fmap.pixels.get());
        auto bitmap = fmap.map<RGBColor>([](float i) { return i < 0 ? RGBColor{ 0,0,0 } : RGBColor{ uint8_t(cos(i * 0.015f) * 127 + 127), uint8_t(sin(i * 0.01f) * 127 + 127), uint8_t(i) }; });//uint8_t(::sin(i * 0.01f) * 100 + 100), uint8_t(i) }; });
        QImage img((unsigned char*)bitmap.pixels.get(), bitmap.width, bitmap.height, bitmap.width * 3, QImage::Format_RGB888);
        img.save(dialog.getPath());*/
    }
}


void Almond::on_smooth_stateChanged(int checked)
{
    this->mw->setSmoothColoring(checked != Qt::Unchecked);
}


void Almond::on_exportImage_clicked()
{
    ExportImageDialog dialog(this);
    dialog.setMaxIterations(mw->getMaxIterations());
    //dialog.show();
    auto response = dialog.exec();
    if (response == 1) {
        mnd::MandelInfo mi;
        mi.maxIter = dialog.getMaxIterations();
        mi.view = mw->getViewport();
        mi.bWidth = dialog.getWidth();
        mi.bHeight = dialog.getHeight();
        mi.view.adjustAspectRatio(mi.bWidth, mi.bHeight);
        mi.smooth = mw->getSmoothColoring();
        if (currentView == JULIA) {
            mi.julia = mw->getMandelInfo().julia;
            mi.juliaX = mw->getJuliaX();
            mi.juliaY = mw->getJuliaY();
        }
        mnd::MandelGenerator* currentGenerator = mw->getGenerator();
        mnd::MandelGenerator& g = currentGenerator ? *currentGenerator : mandelContext.getDefaultGenerator();
        auto fmap = Bitmap<float>(mi.bWidth, mi.bHeight);
        g.generate(mi, fmap.pixels.get());
        auto bitmap = fmap.map<RGBColor>([&mi, this] (float i) {
            return i >= mi.maxIter ? RGBColor{ 0,0,0 } : mw->getGradient().get(i);
        });
        QImage img(reinterpret_cast<unsigned char*>(bitmap.pixels.get()), bitmap.width, bitmap.height, bitmap.width * 3, QImage::Format_RGB888);
        img.save(dialog.getPath());
    }
}


void Almond::on_resetZoom_clicked()
{
    mw->setViewport(mnd::MandelViewport::standardView());
}


void Almond::on_displayInfo_stateChanged(int checked)
{
    this->mw->setDisplayInfo(checked != Qt::Unchecked);
}


void Almond::on_chooseGenerator_clicked()
{
    if (!generatorsDialog)
        generatorsDialog = std::make_unique<ChooseGenerators>(mandelContext, this);
    generatorsDialog->exec();

    if (generatorsDialog->getChosenGenerator()) {
        mandelGeneratorSave = generatorsDialog->getChosenGenerator();
    }
    else {
        mandelGeneratorSave = &mandelContext.getDefaultGenerator();
    }
    //this->currentView = MANDELBROT;
    this->mw->setGenerator(mandelGeneratorSave);
    //this->mw->getMandelInfo().julia = false;
    //printf("dialog executed\n"); fflush(stdout);
}

void Almond::on_selectPoint_clicked()
{
    if (currentView == MANDELBROT) {
        emit this->mw->selectPoint();
    }
}


void Almond::pointSelected(mnd::Real x, mnd::Real y)
{
    if (currentView != JULIA) {
        //auto& gen = mandelContext.getJuliaGenerator();
        mandelViewSave = mw->getViewport();
        //this->mw->setGenerator(&gen);
        this->mw->setViewport(mnd::MandelViewport::centerView());
        this->mw->setJuliaPos(x, y);
        this->mw->getMandelInfo().julia = true;
        this->mw->clearAll();
    }
    currentView = JULIA;
}

void Almond::on_viewMandelbrot_clicked()
{
    if (currentView != MANDELBROT) {
        //this->mw->setGenerator(mandelGeneratorSave);
        this->mw->setViewport(mandelViewSave);
        this->mw->getMandelInfo().julia = false;
        this->mw->clearAll();
        currentView = MANDELBROT;
    }
}