/************************************************************************
 **
 **  @file   dialogbisector.cpp
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   November 15, 2013
 **
 **  @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/>.
 **
 *************************************************************************/

#include "dialogbisector.h"

#include <QColor>
#include <QComboBox>
#include <QDialog>
#include <QLabel>
#include <QLineEdit>
#include <QPlainTextEdit>
#include <QPointer>
#include <QPushButton>
#include <QSet>
#include <QTimer>
#include <QToolButton>

#include "../../visualization/line/vistoolbisector.h"
#include "../../visualization/visualization.h"
#include "../ifc/xml/vabstractpattern.h"
#include "../support/dialogeditwrongformula.h"
#include "../vmisc/vabstractapplication.h"
#include "../vmisc/vcommonsettings.h"
#include "../vpatterndb/vtranslatevars.h"
#include "../vpatterndb/vcontainer.h"
#include "ui_dialogbisector.h"
#include "../vwidgets/vabstractmainwindow.h"
#include "../vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoolbisector.h"
#include "../vgeometry/vpointf.h"

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief DialogBisector create dialog
 * @param data container with data
 * @param parent parent widget
 */
DialogBisector::DialogBisector(const VContainer *data, quint32 toolId, QWidget *parent)
    : DialogTool(data, toolId, parent),
      ui(new Ui::DialogBisector),
      m_timerFormula(new QTimer(this))
{
    ui->setupUi(this);

    m_timerFormula->setSingleShot(true);
    connect(m_timerFormula, &QTimer::timeout, this, &DialogBisector::EvalFormula);

    ui->lineEditNamePoint->setClearButtonEnabled(true);

    ui->lineEditNamePoint->setText(
                VAbstractValApplication::VApp()->getCurrentDocument()->GenerateLabel(LabelType::NewLabel));
    this->m_formulaBaseHeight = ui->plainTextEditFormula->height();
    ui->plainTextEditFormula->installEventFilter(this);

    InitOkCancelApply(ui);

    FillComboBoxPoints(ui->comboBoxFirstPoint);
    FillComboBoxPoints(ui->comboBoxSecondPoint);
    FillComboBoxTypeLine(ui->comboBoxLineType, LineStylesPics());
    FillComboBoxPoints(ui->comboBoxThirdPoint);
    FillComboBoxLineColors(ui->comboBoxLineColor);

    connect(ui->toolButtonExprLength, &QPushButton::clicked, this, &DialogBisector::FXLength);
    connect(ui->lineEditNamePoint, &QLineEdit::textChanged, this, [this]()
    {
        CheckPointLabel(this, ui->lineEditNamePoint, ui->labelEditNamePoint, m_pointName, this->data, m_flagName);
        CheckState();
    });
    connect(ui->plainTextEditFormula, &QPlainTextEdit::textChanged, this, [this]()
    {
        m_timerFormula->start(formulaTimerTimeout);
    });
    connect(ui->pushButtonGrowLength, &QPushButton::clicked, this, &DialogBisector::DeployFormulaTextEdit);
    connect(ui->comboBoxFirstPoint, &QComboBox::currentTextChanged,
            this, &DialogBisector::PointNameChanged);
    connect(ui->comboBoxSecondPoint, &QComboBox::currentTextChanged,
            this, &DialogBisector::PointNameChanged);
    connect(ui->comboBoxThirdPoint, &QComboBox::currentTextChanged,
            this, &DialogBisector::PointNameChanged);

    vis = new VisToolBisector(data);

    ui->tabWidget->setCurrentIndex(0);
    SetTabStopDistance(ui->plainTextEditToolNotes);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::PointNameChanged()
{
    QSet<quint32> set;
    set.insert(getCurrentObjectId(ui->comboBoxFirstPoint));
    set.insert(getCurrentObjectId(ui->comboBoxSecondPoint));
    set.insert(getCurrentObjectId(ui->comboBoxThirdPoint));

    QColor color;
    if (set.size() != 3)
    {
        m_flagError = false;
        color = errorColor;
    }
    else
    {
        m_flagError = true;
        color = OkColor(this);
    }
    ChangeColor(ui->labelFirstPoint, color);
    ChangeColor(ui->labelSecondPoint, color);
    ChangeColor(ui->labelThirdPoint, color);
    CheckState();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::FXLength()
{
    auto *dialog = new DialogEditWrongFormula(data, toolId, this);
    dialog->setWindowTitle(tr("Edit length"));
    dialog->SetFormula(GetFormula());
    dialog->setPostfix(UnitsToStr(VAbstractValApplication::VApp()->patternUnits(), true));
    if (dialog->exec() == QDialog::Accepted)
    {
        SetFormula(dialog->GetFormula());
    }
    delete dialog;
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::EvalFormula()
{
    FormulaData formulaData;
    formulaData.formula = ui->plainTextEditFormula->toPlainText();
    formulaData.variables = data->DataVariables();
    formulaData.labelEditFormula = ui->labelEditFormula;
    formulaData.labelResult = ui->labelResultCalculation;
    formulaData.postfix = UnitsToStr(VAbstractValApplication::VApp()->patternUnits(), true);
    formulaData.checkZero = false;

    Eval(formulaData, m_flagFormula);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::ShowVisualization()
{
    AddVisualization<VisToolBisector>();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::DeployFormulaTextEdit()
{
    DeployFormula(this, ui->plainTextEditFormula, ui->pushButtonGrowLength, m_formulaBaseHeight);
}

//---------------------------------------------------------------------------------------------------------------------
DialogBisector::~DialogBisector()
{
    delete ui;
}

//---------------------------------------------------------------------------------------------------------------------
auto DialogBisector::GetPointName() const -> QString
{
    return m_pointName;
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief ChoosedObject gets id and type of selected object. Save right data and ignore wrong.
 * @param id id of point or detail
 * @param type type of object
 */
void DialogBisector::ChosenObject(quint32 id, const SceneObject &type)
{
    if (prepare)// After first choose we ignore all objects
    {
        return;
    }

    if (type == SceneObject::Point)
    {
        auto *line = qobject_cast<VisToolBisector *>(vis);
        SCASSERT(line != nullptr)

        switch (m_number)
        {
            case 0:
                if (SetObject(id, ui->comboBoxFirstPoint, tr("Select second point of angle")))
                {
                    m_number++;
                    line->VisualMode(id);
                }
                break;
            case 1:
                if (getCurrentObjectId(ui->comboBoxFirstPoint) != id)
                {
                    if (SetObject(id, ui->comboBoxSecondPoint, tr("Select third point of angle")))
                    {
                        m_number++;
                        line->SetPoint2Id(id);
                        line->RefreshGeometry();
                    }
                }
                break;
            case 2:
                ChosenThirdPoint(id);
                break;
            default:
                break;
        }
    }
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief SetPointName set name of point
 * @param value name
 */
void DialogBisector::SetPointName(const QString &value)
{
    m_pointName = value;
    ui->lineEditNamePoint->setText(m_pointName);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief SetTypeLine set type of line
 * @param value type
 */
void DialogBisector::SetTypeLine(const QString &value)
{
    ChangeCurrentData(ui->comboBoxLineType, value);
    vis->SetLineStyle(LineStyleToPenStyle(value));
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief SetFormula set string of formula
 * @param value formula
 */
void DialogBisector::SetFormula(const QString &value)
{
    m_formula = VAbstractApplication::VApp()->TrVars()
            ->FormulaToUser(value, VAbstractApplication::VApp()->Settings()->GetOsSeparator());
    // increase height if needed.
    if (m_formula.length() > 80)
    {
        this->DeployFormulaTextEdit();
    }
    ui->plainTextEditFormula->setPlainText(m_formula);

    auto *line = qobject_cast<VisToolBisector *>(vis);
    SCASSERT(line != nullptr)
    line->SetLength(m_formula);

    MoveCursorToEnd(ui->plainTextEditFormula);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief SetFirstPointId set id of first point
 * @param value id
 */
void DialogBisector::SetFirstPointId(const quint32 &value)
{
    setCurrentPointId(ui->comboBoxFirstPoint, value);

    auto *line = qobject_cast<VisToolBisector *>(vis);
    SCASSERT(line != nullptr)
    line->SetPoint1Id(value);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief SetSecondPointId set id of second point
 * @param value id
 */
void DialogBisector::SetSecondPointId(const quint32 &value)
{
    setCurrentPointId(ui->comboBoxSecondPoint, value);

    auto *line = qobject_cast<VisToolBisector *>(vis);
    SCASSERT(line != nullptr)
    line->SetPoint2Id(value);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief SetThirdPointId set id of third point
 * @param value id
 */
void DialogBisector::SetThirdPointId(const quint32 &value)
{
    setCurrentPointId(ui->comboBoxThirdPoint, value);

    auto *line = qobject_cast<VisToolBisector *>(vis);
    SCASSERT(line != nullptr)
    line->SetPoint3Id(value);
}

//---------------------------------------------------------------------------------------------------------------------
auto DialogBisector::GetLineColor() const -> QString
{
    return GetComboBoxCurrentData(ui->comboBoxLineColor, ColorBlack);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::SetLineColor(const QString &value)
{
    ChangeCurrentData(ui->comboBoxLineColor, value);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::SetNotes(const QString &notes)
{
    ui->plainTextEditToolNotes->setPlainText(notes);
}

//---------------------------------------------------------------------------------------------------------------------
auto DialogBisector::GetNotes() const -> QString
{
    return ui->plainTextEditToolNotes->toPlainText();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::ShowDialog(bool click)
{
    if (not prepare)
    {
        return;
    }

    if (click)
    {
        // The check need to ignore first release of mouse button.
        // User can select point by clicking on a label.
        if (not m_firstRelease)
        {
            m_firstRelease = true;
            return;
        }

        auto *scene = qobject_cast<VMainGraphicsScene *>(VAbstractValApplication::VApp()->getCurrentScene());
        SCASSERT(scene != nullptr)

        const QSharedPointer<VPointF> p1 = data->GeometricObject<VPointF>(GetFirstPointId());
        const QSharedPointer<VPointF> p2 = data->GeometricObject<VPointF>(GetSecondPointId());
        const QSharedPointer<VPointF> p3 = data->GeometricObject<VPointF>(GetThirdPointId());

        qreal angle = VToolBisector::BisectorAngle(static_cast<QPointF>(*p1),
                                                   static_cast<QPointF>(*p2),
                                                   static_cast<QPointF>(*p3));

        QLineF baseLine(static_cast<QPointF>(*p2), static_cast<QPointF>(*p3));
        baseLine.setAngle(angle);

        QLineF line(static_cast<QPointF>(*p2), scene->getScenePos());

        qreal len = line.length();
        qreal angleTo = baseLine.angleTo(line);
        if (angleTo > 90 && angleTo < 270)
        {
            len *= -1;
        }

        SetFormula(QString::number(FromPixel(len, *data->GetPatternUnit())));
    }

    FinishCreating();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::SaveData()
{
    m_pointName = ui->lineEditNamePoint->text();
    m_formula = ui->plainTextEditFormula->toPlainText();

    auto *line = qobject_cast<VisToolBisector *>(vis);
    SCASSERT(line != nullptr)

    line->SetPoint1Id(GetFirstPointId());
    line->SetPoint2Id(GetSecondPointId());
    line->SetPoint3Id(GetThirdPointId());
    line->SetLength(m_formula);
    line->SetLineStyle(LineStyleToPenStyle(GetTypeLine()));
    line->RefreshGeometry();
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::closeEvent(QCloseEvent *event)
{
    ui->plainTextEditFormula->blockSignals(true);
    DialogTool::closeEvent(event);
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::ChosenThirdPoint(quint32 id)
{
    QSet<quint32> set;
    set.insert(getCurrentObjectId(ui->comboBoxFirstPoint));
    set.insert(getCurrentObjectId(ui->comboBoxSecondPoint));
    set.insert(id);

    if (set.size() == 3)
    {
        if (SetObject(id, ui->comboBoxThirdPoint, QString()))
        {
            auto *window = qobject_cast<VAbstractMainWindow *>(
                VAbstractValApplication::VApp()->getMainWindow());
            SCASSERT(window != nullptr)

            auto *line = qobject_cast<VisToolBisector *>(vis);
            SCASSERT(line != nullptr)
            connect(line, &Visualization::ToolTip, window, &VAbstractMainWindow::ShowToolTip);

            line->SetPoint3Id(id);
            line->RefreshGeometry();
            prepare = true;

            if (not VAbstractValApplication::VApp()->Settings()->IsInteractiveTools())
            {
                FinishCreating();
            }
        }
    }
}

//---------------------------------------------------------------------------------------------------------------------
void DialogBisector::FinishCreating()
{
    vis->SetMode(Mode::Show);
    vis->RefreshGeometry();
    emit ToolTip(QString());
    setModal(true);
    show();
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief GetTypeLine return type of line
 * @return type
 */
auto DialogBisector::GetTypeLine() const -> QString
{
    return GetComboBoxCurrentData(ui->comboBoxLineType, TypeLineLine);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief GetFormula return string of formula
 * @return formula
 */
auto DialogBisector::GetFormula() const -> QString
{
    return VTranslateVars::TryFormulaFromUser(m_formula, VAbstractApplication::VApp()->Settings()->GetOsSeparator());
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief GetFirstPointId return id of first point
 * @return id
 */
auto DialogBisector::GetFirstPointId() const -> quint32
{
    return getCurrentObjectId(ui->comboBoxFirstPoint);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief GetSecondPointId return id of second point
 * @return id
 */
auto DialogBisector::GetSecondPointId() const -> quint32
{
    return getCurrentObjectId(ui->comboBoxSecondPoint);
}

//---------------------------------------------------------------------------------------------------------------------
/**
 * @brief GetThirdPointId return id of third point
 * @return id
 */
auto DialogBisector::GetThirdPointId() const -> quint32
{
    return getCurrentObjectId(ui->comboBoxThirdPoint);
}