/************************************************************************
 **
 **  @file   dialogeditwrongformula.h
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   29 5, 2014
 **
 **  @brief
 **  @copyright
 **  This source code is part of the Valentina project, a pattern making
 **  program, whose allow create and modeling patterns of clothing.
 **  Copyright (C) 2013-2015 Valentina project
 **  <https://gitlab.com/smart-pattern/valentina> All Rights Reserved.
 **
 **  Valentina is free software: you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License as published by
 **  the Free Software Foundation, either version 3 of the License, or
 **  (at your option) any later version.
 **
 **  Valentina is distributed in the hope that it will be useful,
 **  but WITHOUT ANY WARRANTY; without even the implied warranty of
 **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 **  GNU General Public License for more details.
 **
 **  You should have received a copy of the GNU General Public License
 **  along with Valentina.  If not, see <http://www.gnu.org/licenses/>.
 **
 *************************************************************************/

#ifndef DIALOGEDITWRONGFORMULA_H
#define DIALOGEDITWRONGFORMULA_H

#include <qcompilerdetection.h>
#include <QMap>
#include <QMetaObject>
#include <QObject>
#include <QString>
#include <QTableWidgetItem>
#include <QtGlobal>
#include <QDialog>

#include "../vmisc/defglobal.h"

class VMeasurement;
struct FormulaData;
class VContainer;

namespace Ui
{
class DialogEditWrongFormula;
}

/**
 * @brief The DialogEditWrongFormula class dialog for editing wrong formula.
 *
 * When math parser find in formula error user can try fix issue. Dialog will show all variables that user can use in
 * this formula. Dialog check fixed variant of formula.
 *
 * Don't implemant button "Apply" for this dialog!!
 */
class DialogEditWrongFormula final : public QDialog
{
    Q_OBJECT //NOLINT
public:
    DialogEditWrongFormula(const VContainer *data, quint32 toolId, QWidget *parent = nullptr);
    ~DialogEditWrongFormula() override;

    auto GetFormula() const -> QString;
    void SetFormula(const QString &value);
    void setCheckZero(bool value);
    void setCheckLessThanZero(bool value);
    void setPostfix(const QString &value);
    void SetMeasurementsMode();
    void SetIncrementsMode();
    void SetPreviewCalculationsMode();
public slots:
    virtual void DialogAccepted();
    virtual void DialogRejected();

    void EvalFormula();
    void ValChanged(int row);
    void PutHere();
    void PutVal(QTableWidgetItem * item);

    void Measurements();
    void LengthLines();
    void RadiusArcs();
    void AnglesCurves();
    void LengthCurves();
    void CurvesCLength();
    void AngleLines();
    void Increments();
    void PreviewCalculations();
    void Functions();
signals:
    /**
     * @brief DialogClosed signal dialog closed
     * @param result keep result
     */
    void DialogClosed(int result);
    /**
     * @brief DialogApplied emit signal dialog apply changes
     */
    void DialogApplied();
protected:
    virtual auto IsValid() const -> bool final;
    void closeEvent(QCloseEvent *event) override;
    void showEvent( QShowEvent *event ) override;
    void resizeEvent(QResizeEvent *event) override;
    virtual void CheckState();
private slots:
    void FilterVariablesEdited(const QString &filter);
private:
    Q_DISABLE_COPY_MOVE(DialogEditWrongFormula) //NOLINT
    Ui::DialogEditWrongFormula *ui;

    const VContainer *m_data;

    quint32 m_toolId;

    /** @brief formula string with formula */
    QString formula{};

    /** @brief formulaBaseHeight base height defined by dialogui */
    int formulaBaseHeight{0};

    bool checkZero{false};
    bool checkLessThanZero{false};
    QString postfix{};
    bool restoreCursor{false};

    QTimer *timerFormula;

    bool flagFormula{false};

    /** @brief m_isInitialized true if window is initialized */
    bool m_isInitialized{false};

    void InitVariables();

    template <class key, class val>
    void ShowVariable(const QMap<key, val> &var);
    void ShowMeasurements(const QMap<QString, QSharedPointer<VMeasurement> > &var);
    void ShowFunctions();
    void ShowIncrementsInPreviewCalculation(bool show);

    void SetDescription(const QString &name, qreal value, bool specialUnits, const QString &description);

    auto Eval(const FormulaData &formulaData, bool &flag) -> qreal;
};

//---------------------------------------------------------------------------------------------------------------------
inline auto DialogEditWrongFormula::IsValid() const -> bool
{
    return flagFormula;
}

#endif // DIALOGEDITWRONGFORMULA_H