#include "dialoglineintersect.h"
#include "ui_dialoglineintersect.h"

DialogLineIntersect::DialogLineIntersect(const VContainer *data, Draw::Mode mode, QWidget *parent) :
    DialogTool(data, mode, parent), ui(new Ui::DialogLineIntersect), number(0), pointName(QString()),
    p1Line1(0), p2Line1(0), p1Line2(0), p2Line2(0), flagPoint(true){
    ui->setupUi(this);
    number = 0;
    bOk = ui->buttonBox->button(QDialogButtonBox::Ok);
    connect(bOk, &QPushButton::clicked, this, &DialogLineIntersect::DialogAccepted);
    flagName = false;
    QPushButton *bCansel = ui->buttonBox->button(QDialogButtonBox::Cancel);
    connect(bCansel, &QPushButton::clicked, this, &DialogLineIntersect::DialogRejected);
    FillComboBoxPoints(ui->comboBoxP1Line1);
    FillComboBoxPoints(ui->comboBoxP2Line1);
    FillComboBoxPoints(ui->comboBoxP1Line2);
    FillComboBoxPoints(ui->comboBoxP2Line2);

    connect(ui->lineEditNamePoint, &QLineEdit::textChanged, this, &DialogLineIntersect::NamePointChanged);
}

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

void DialogLineIntersect::ChoosedObject(qint64 id, Scene::Type type){
    if(idDetail == 0 && mode == Draw::Modeling){
        if(type == Scene::Detail){
            idDetail = id;
            return;
        }
    }
    if(mode == Draw::Modeling){
        if(!CheckObject(id)){
            return;
        }
    }
    if(type == Scene::Point){
        VPointF point;
        if(mode == Draw::Calculation){
            point = data->GetPoint(id);
        } else {
            point = data->GetModelingPoint(id);
        }
        if(number == 0){
            qint32 index = ui->comboBoxP1Line1->findText(point.name());
            if ( index != -1 ) { // -1 for not found
                ui->comboBoxP1Line1->setCurrentIndex(index);
                p1Line1 = id;
                number++;
                return;
            }
        }
        if(number == 1){
            qint32 index = ui->comboBoxP2Line1->findText(point.name());
            if ( index != -1 ) { // -1 for not found
                ui->comboBoxP2Line1->setCurrentIndex(index);
                p2Line1 = id;
                number++;
                return;
            }
        }
        if(number == 2){
            qint32 index = ui->comboBoxP1Line2->findText(point.name());
            if ( index != -1 ) { // -1 for not found
                ui->comboBoxP1Line2->setCurrentIndex(index);
                p1Line2 = id;
                number++;
                return;
            }
        }
        if(number == 3){
            qint32 index = ui->comboBoxP2Line2->findText(point.name());
            if ( index != -1 ) { // -1 for not found
                ui->comboBoxP2Line2->setCurrentIndex(index);
                p2Line2 = id;
                number = 0;
            }
            if(!isInitialized){
                flagPoint = CheckIntersecion();
                CheckState();
                this->show();
                connect(ui->comboBoxP1Line1,
                        static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
                        &DialogLineIntersect::P1Line1Changed);
                connect(ui->comboBoxP2Line1,
                        static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
                        &DialogLineIntersect::P2Line1Changed);
                connect(ui->comboBoxP1Line2,
                        static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
                        &DialogLineIntersect::P1Line2Changed);
                connect(ui->comboBoxP2Line2,
                        static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
                        &DialogLineIntersect::P2Line2Changed);
            }
        }
    }
}

void DialogLineIntersect::DialogAccepted(){
    pointName = ui->lineEditNamePoint->text();
    p1Line1 = getCurrentPointId(ui->comboBoxP1Line1);
    p2Line1 = getCurrentPointId(ui->comboBoxP2Line1);
    p1Line2 = getCurrentPointId(ui->comboBoxP1Line2);
    p2Line2 = getCurrentPointId(ui->comboBoxP2Line2);
    emit DialogClosed(QDialog::Accepted);
}

void DialogLineIntersect::P1Line1Changed( int index){
    p1Line1 = qvariant_cast<qint64>(ui->comboBoxP1Line1->itemData(index));
    flagPoint = CheckIntersecion();
    CheckState();
}

void DialogLineIntersect::P2Line1Changed(int index){
    p2Line1 = qvariant_cast<qint64>(ui->comboBoxP2Line1->itemData(index));
    flagPoint = CheckIntersecion();
    CheckState();
}

void DialogLineIntersect::P1Line2Changed(int index){
    p1Line2 = qvariant_cast<qint64>(ui->comboBoxP1Line2->itemData(index));
    flagPoint = CheckIntersecion();
    CheckState();
}

void DialogLineIntersect::P2Line2Changed(int index){
    p2Line2 = qvariant_cast<qint64>(ui->comboBoxP2Line2->itemData(index));
    flagPoint = CheckIntersecion();
    CheckState();
}

void DialogLineIntersect::CheckState(){
    Q_CHECK_PTR(bOk);
    bOk->setEnabled(flagName && flagPoint);
}

bool DialogLineIntersect::CheckIntersecion(){
    VPointF p1L1 = data->GetPoint(p1Line1);
    VPointF p2L1 = data->GetPoint(p2Line1);
    VPointF p1L2 = data->GetPoint(p1Line2);
    VPointF p2L2 = data->GetPoint(p2Line2);

    QLineF line1(p1L1.toQPointF(), p2L1.toQPointF());
    QLineF line2(p1L2.toQPointF(), p2L2.toQPointF());
    QPointF fPoint;
    QLineF::IntersectType intersect = line1.intersect(line2, &fPoint);
    if(intersect == QLineF::UnboundedIntersection || intersect == QLineF::BoundedIntersection){
        return true;
    } else {
        return false;
    }
}

qint64 DialogLineIntersect::getP2Line2() const{
    return p2Line2;
}

void DialogLineIntersect::setP2Line2(const qint64 &value){
    p2Line2 = value;
    ChangeCurrentData(ui->comboBoxP2Line2, value);
}

qint64 DialogLineIntersect::getP1Line2() const{
    return p1Line2;
}

void DialogLineIntersect::setP1Line2(const qint64 &value){
    p1Line2 = value;
    ChangeCurrentData(ui->comboBoxP1Line2, value);
}

qint64 DialogLineIntersect::getP2Line1() const{
    return p2Line1;
}

void DialogLineIntersect::setP2Line1(const qint64 &value){
    p2Line1 = value;
    ChangeCurrentData(ui->comboBoxP2Line1, value);
}

qint64 DialogLineIntersect::getP1Line1() const{
    return p1Line1;
}

void DialogLineIntersect::setP1Line1(const qint64 &value){
    p1Line1 = value;
    ChangeCurrentData(ui->comboBoxP1Line1, value);
}

QString DialogLineIntersect::getPointName() const{
    return pointName;
}

void DialogLineIntersect::setPointName(const QString &value){
    pointName = value;
    ui->lineEditNamePoint->setText(pointName);
}