#ifndef NUMKEYDIA_H
#define NUMKEYDIA_H

#include "NumKeyBoard_global.h"
#include <QDialog>
#include <QLineEdit>

class QPushButton;

namespace Ui
{
class NumKeyDia;
}

class NUMKEYBOARD_EXPORT NumKeyDia : public QDialog
{
    Q_OBJECT

public:
    explicit NumKeyDia(QWidget *parent = nullptr);
    ~NumKeyDia();

    static NumKeyDia *instance()
    {
        return singleton;
    }

    void setValue(const QString &value);
    QString &getValue();

protected:
    virtual bool eventFilter(QObject *obj, QEvent *event) override;

private slots:
    void on_btn_ok_clicked();

    void on_btn_cancel_clicked();

    void on_btn_clear_clicked();

    void on_btn_back_clicked();

    void btn_input_clicked();

    void closeKeyBoard();

private:
    enum class InputPage
    {
        NumberPage,
        SymbolPage
    };

    void setInputPage(InputPage page);
    void refreshInputButtons();
    void configureInputButton(QPushButton *button,
                              const QString &label,
                              const QString &value,
                              bool enabled,
                              bool isModeSwitch = false);

    Ui::NumKeyDia *ui;

    static NumKeyDia *singleton;

    QString value = QString();

    QPoint m_point;

    bool m_firstInputFlag = true;
    InputPage m_inputPage = InputPage::NumberPage;
};

namespace KeyBoard
{
NUMKEYBOARD_EXPORT NumKeyDia *app();
};

#endif // NUMKEYDIA_H