#include "lts_angle_edit.h"

#include "ui_lts_angle_edit.h"

#include <cmath>
#include <utility>

namespace LtsWidgets
{

inline constexpr double pi()
{
    return M_PI;
}

inline constexpr double deg2rad()
{
    return pi() / 180.;
}

inline constexpr double rad2deg()
{
    return 1. / deg2rad();
}

constexpr int maxAngleDeg = 360;
constexpr int maxAngleMil = 6400;
constexpr std::tuple<int, int, int, int> c_limDeg(0, maxAngleDeg, 0, 10);
constexpr std::tuple<int, int, int, int> c_limMil(0, maxAngleMil, 0, 50);
constexpr std::tuple<int, int, int, int> c_limRad(-99999, 99999, 3, 1);

inline constexpr double mil2Deg(const double& mil)
{
    return maxAngleDeg * mil / maxAngleMil;
}

inline constexpr double deg2Mil(const double& angleDeg)
{
    return maxAngleMil * angleDeg / maxAngleDeg;
}

inline constexpr double deg2Rad(const double& angleDeg)
{
    return angleDeg * deg2rad();
}

inline constexpr double rad2Degree(const double& angleRad)
{
    return angleRad * 180 / pi();
}

inline constexpr double mil2Rad(const double& mil)
{
    return deg2Rad(mil2Deg(mil));
}

inline constexpr double rad2Mil(const double& angleRad)
{
    return deg2Mil(rad2Degree(angleRad));
}

LtsAngleEdit::LtsAngleEdit(QWidget* parent) : QWidget(parent), m_ui(new Ui_LtsAngleEdit)
{
    m_ui->setupUi(this);
}

LtsAngleEdit::~LtsAngleEdit()
{
    delete m_ui;
}

void LtsAngleEdit::initAngleEditWidget(const unsigned int sboxCount)
{

    m_dboxLimitMap.insert(AngleUnitType::Deg, c_limDeg);
    m_dboxLimitMap.insert(AngleUnitType::Mil, c_limMil);
    m_dboxLimitMap.insert(AngleUnitType::Rad, c_limRad);
    m_hiddenUnits.clear();
    m_hiddenUnits.insert((int)AngleUnitType::Rad);

    for (unsigned int i = 0; i < sboxCount; ++i)
    {
        QSharedPointer<QDoubleSpinBox> spinbox = QSharedPointer<QDoubleSpinBox>(new QDoubleSpinBox(this));
        spinbox->setValue(0);
        spinbox->setAlignment(Qt::AlignRight);
        spinbox->setMinimumWidth(91);

        spinbox.data()->setObjectName(spinBoxName + QString::number(m_sBoxMap.count()));
        m_ui->hLayoutSpinbox->addWidget(spinbox.data(), 0);
        m_sBoxMap.insert(m_sBoxMap.count(), spinbox);
    }
    m_ui->hLayoutSpinbox->setContentsMargins(1, 1, 1, 1);

    connect(m_ui->cBoxAngleUnit, qOverload<int>(&QComboBox::currentIndexChanged), this,
            &LtsAngleEdit::onCBoxAngleUnitChanged);

    setCboxUnit();
}

void LtsAngleEdit::setValue(const double value, unsigned int dboxIndex)
{
    if ((int)dboxIndex > m_sBoxMap.count())
        return;
    auto spinbox = m_sBoxMap.value(dboxIndex);
    spinbox->setValue(value);
}

void LtsAngleEdit::setValue(const double value, AngleUnitType valueUnit, unsigned int dboxIndex)
{
    setValue(getAngleConverted(value, getAngleCurrentUnit(), valueUnit), dboxIndex);
}

void LtsAngleEdit::hideUnits(const QVector<AngleUnitType>& list)
{
    for (auto u : list)
        m_hiddenUnits.insert((int)u);
    setCboxUnit();
}

void LtsAngleEdit::showUnits(const QVector<AngleUnitType>& list)
{
    for (const auto& u : list)
        m_hiddenUnits.remove((int)u);
    setCboxUnit();
}

void LtsAngleEdit::setCboxUnit()
{
    m_ui->cBoxAngleUnit->clear();
    const std::vector<AngleUnitType> allUnits = {AngleUnitType::Deg, AngleUnitType::Mil, AngleUnitType::Rad};
    for (const auto& u : allUnits)
    {
        if (m_hiddenUnits.contains((int)u))
            continue;
        m_ui->cBoxAngleUnit->insertItem(static_cast<int>(u), toString(u), static_cast<int>(u));
    }

    setAngleUnit(AngleUnitType::Deg);
}

void LtsAngleEdit::setValue(const double value, AngleUnitType valueUnit)
{

    setValue(getAngleConverted(value, getAngleCurrentUnit(), valueUnit), 0);
}

void LtsAngleEdit::setAngleUnit(const AngleUnitType& type)
{
    m_ui->cBoxAngleUnit->setCurrentIndex(static_cast<int>(type));
}

LtsAngleEdit::AngleUnitType LtsAngleEdit::getAngleCurrentUnit() const
{
    return static_cast<AngleUnitType>(m_ui->cBoxAngleUnit->currentIndex());
}

double LtsAngleEdit::getAngle(unsigned int sboxIndex) const
{
    if ((int)sboxIndex > m_sBoxMap.count())
        return 0;
    auto spinbox = m_sBoxMap.value(sboxIndex);
    return spinbox->value();
}

QString LtsAngleEdit::toString(LtsAngleEdit::AngleUnitType t)
{
    switch (t)
    {
        case AngleUnitType::Deg:
            return tr("Degree");
        case AngleUnitType::Mil:
            return tr("Mil");
        case AngleUnitType::Rad:
            return tr("Radian");
        default:
            return tr("");
    }
    return tr("");
}

void LtsAngleEdit::onCBoxAngleUnitChanged()
{
    AngleUnitType newUnit = static_cast<AngleUnitType>(m_ui->cBoxAngleUnit->currentData().toInt());
    for (auto dbox : std::as_const(m_sBoxMap))
    {
        const double value = getAngleConverted(dbox->value(), newUnit, m_currAngleUnit);
        auto mapVal = m_dboxLimitMap.value(newUnit);
        dbox->setMinimum(std::get<LimTuple::AngleMin>(mapVal));
        dbox->setMaximum(std::get<LimTuple::AngleMax>(mapVal));
        dbox->setDecimals(std::get<LimTuple::DecimalPlace>(mapVal));
        dbox->setSingleStep(std::get<LimTuple::SingleStep>(mapVal));
        dbox->setValue(value);
    }
    m_currAngleUnit = newUnit;
}

double LtsAngleEdit::getAngleConverted(const double angle, LtsAngleEdit::AngleUnitType newAngleUnit,
                                       LtsAngleEdit::AngleUnitType oldAngleUnit)
{
    double convertedAngle = angle;
    if (oldAngleUnit == AngleUnitType::Deg && newAngleUnit == AngleUnitType::Mil)
        convertedAngle = deg2Mil(angle);
    else if (oldAngleUnit == AngleUnitType::Deg && newAngleUnit == AngleUnitType::Rad)
        convertedAngle = deg2Rad(angle);
    else if (oldAngleUnit == AngleUnitType::Mil && newAngleUnit == AngleUnitType::Deg)
        convertedAngle = mil2Deg(angle);
    else if (oldAngleUnit == AngleUnitType::Mil && newAngleUnit == AngleUnitType::Rad)
        convertedAngle = mil2Rad(angle);
    else if (oldAngleUnit == AngleUnitType::Rad && newAngleUnit == AngleUnitType::Deg)
        convertedAngle = rad2Degree(angle);
    else if (oldAngleUnit == AngleUnitType::Rad && newAngleUnit == AngleUnitType::Mil)
        convertedAngle = rad2Mil(angle);

    return convertedAngle;
}

void LtsAngleEdit::setEnable(int sbIndex, bool enabled)
{
    if ((int)sbIndex > m_sBoxMap.count())
        return;
    m_sBoxMap.value(sbIndex)->setEnabled(enabled);
}

void LtsAngleEdit::showSpinbox(int sbIndex, bool visible)
{
    if ((int)sbIndex > m_sBoxMap.count())
        return;
    m_sBoxMap.value(sbIndex)->setVisible(visible);
}

} // namespace LtsWidgets