#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    QObject::connect(ui->gridPreview, &GridPreview::updatedContents,
                     this, &MainWindow::onGridUpdated);
    colorMap.insert(QString("red"), Qt::red);
    colorMap.insert(QString("green"), Qt::green);
    colorMap.insert(QString("blue"), Qt::blue);

    ui->gridPreview->setColorMap(colorMap);
    emit ui->gridPreview->updatedContents();

    ui->comboLineColor->addItems(colorMap.keys());
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::onGridUpdated()
{
    ui->gridPreview->repaint();

    ui->textPreview->setPlainText(ui->gridPreview->toLuaTable());

    ui->spinGridWidth->setValue(ui->gridPreview->getWidth());
    ui->spinGridHeight->setValue(ui->gridPreview->getHeight());

    ui->listLines->clear();

    for (int i = 0; i< ui->gridPreview->getLines().size(); i++)
        ui->listLines->addItem(QString("Line #%1").arg(i + 1));

    PointProbe pp = ui->gridPreview->getCapturedProbe();

    ui->listLines->setCurrentRow(pp.ownerIndex);
}

void MainWindow::on_spinGridWidth_valueChanged(int arg1)
{
    ui->gridPreview->setSize(arg1, ui->gridPreview->getHeight());
}


void MainWindow::on_spinGridHeight_valueChanged(int arg1)
{
    ui->gridPreview->setSize(ui->gridPreview->getWidth(), arg1);
}


void MainWindow::on_comboLineColor_currentTextChanged(const QString&)
{
    int selected = ui->listLines->currentRow();

    if (!isSelectedLineCorrect(selected))
        return;

    ui->gridPreview->setLineColor(selected, ui->comboLineColor->currentText());
}

void MainWindow::on_listLines_currentRowChanged(int currentRow)
{
    if (!isSelectedLineCorrect(currentRow))
        return;

    PointProbe &probe = ui->gridPreview->getCapturedProbe();

    probe.ownerIndex = currentRow;

    Line line = ui->gridPreview->getLine(currentRow);

    int startX = line.getStart().x(), startY = line.getStart().y(),
        endX = line.getEnd().x(), endY = line.getEnd().y();
    ui->spinLineStartPointX->setValue(startX);
    ui->spinLineStartPointY->setValue(startY);
    ui->spinLineEndPointX->setValue(endX);
    ui->spinLineEndPointY->setValue(endY);
    ui->comboLineColor->setCurrentIndex(ui->comboLineColor->findText(line.getColor()));
}

bool MainWindow::isSelectedLineCorrect(int line)
{
    int size = ui->gridPreview->getLines().size();
    return line >= 0 && line < size && size > 0;
}