#include "brainywindow.h"
#include "ui_brainywindow.h"
#include <QFileDialog>
#include <QFontDialog>
#include <QFile>
#include <QTextStream>
#include <QFontMetrics>
#include <iostream>

BrainyWindow::BrainyWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::BrainyWindow)
{
    ui->setupUi(this);
    sh = new SyntaxHighlighter(ui->textEdit->document());

    ui->actionOpen_2->connect(ui->actionOpen_2, &QAction::triggered, this, openFile);
    ui->actionSave_2->connect(ui->actionSave_2, &QAction::triggered, this, saveFile);
    ui->actionEditor_Font->connect(ui->actionEditor_Font, &QAction::triggered, this, [this] () {
        bool ok;
        QFont font = QFontDialog::getFont(&ok, ui->textEdit->font(), this);
        if (ok)
            ui->textEdit->setFont(font);
    });
}

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


void BrainyWindow::openFile()
{
    auto filename = QFileDialog::getOpenFileName(this,
        tr("Open File"), "", tr("Brainfuck File (*.bf);; Any File (*.*)"));
    openedFile = new QFile(filename);
    if (!openedFile->open(QIODevice::ReadWrite | QFile::Text)) return;
    QTextStream in(openedFile);
    ui->textEdit->setText(in.readAll());
}


void BrainyWindow::saveFile()
{
    if (!openedFile->isOpen()) {
        openedFile->open(QIODevice::WriteOnly | QFile::Text | QFile::Truncate);
    }
    if (openedFile->isOpen()) {
        openedFile->write(ui->textEdit->document()->toPlainText().toUtf8().data());
        openedFile->close();
    }
}


bool BrainyWindow::changesToSave() const
{
    return changedAnything;
}