#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QtCore>
#include <QtGui>
#include <QtXml>
#include <QDebug>

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT
    enum eStateLevel: quint8
    {
        createRoot,
        createDatabase,
        createTable,
        createField,
        editDatabase,
        editTable,
        editField
    };
    enum eElementType:quint8
    {
        root,
        database,
        table,
        field,
        unknown
    };

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void on_actionCreate_Database_triggered();

    void on_Append_btn_clicked();

    void on_actionAdd_Table_triggered();

    void on_actionAdd_Field_triggered();

    void on_chbIsForignKey_stateChanged(int arg1);

    void on_cmbTablsName_currentIndexChanged(int index);

    void on_treeView_doubleClicked(const QModelIndex &index);

    void on_cmbType_currentTextChanged(const QString &arg1);

    void on_actionsave_triggered();

    void on_actionEdit_Database_triggered();

private:
    Ui::MainWindow *ui;
    QStandardItemModel *_model;
    QString _fileName;

    int _state = 0;

    QDomDocument _xmlDoc;
    QString _xmlAddress;
    QDomElement _root;
    QVector<QString> _DBNameVector;
    QVector<QDomElement> _DBElementVector;
    QDomElement _lastDBElement;
    QDomElement _lastTableElement;
    QDomElement _lastFieldElement;
    QDomElement* _lastDBPointer;

    void readFile();
    void readFile(QDomDocument xmlInput);
    void writeFile();
    void hideWidgets();

    eElementType getElementType(QModelIndex indInput);


};
#endif // MAINWINDOW_H