#include "props/EntityPropertySection.h"

#include "params/ParamControls.h"

#include <QDoubleSpinBox>
#include <QFormLayout>
#include <QLabel>
#include <QLineEdit>
#include <QVBoxLayout>

namespace gui {

EntityPropertySection::EntityPropertySection(QWidget* parent)
    : PropertySectionWidget(parent) {
    auto* lay = new QVBoxLayout(this);
    lay->setContentsMargins(0, 0, 0, 0);
    lay->setSpacing(6);

    auto* form = new QFormLayout();
    form->setContentsMargins(0, 0, 0, 0);
    form->setSpacing(6);

    m_name = new QLineEdit(this);
    m_name->setPlaceholderText(QStringLiteral("显示名称"));
    m_name->setToolTip(QStringLiteral("仅显示用；内部 id 不变"));
    form->addRow(QStringLiteral("名称"), m_name);

    m_depth = new QLabel(QStringLiteral("-"), this);
    m_distScale = new QLabel(QStringLiteral("-"), this);
    for (QLabel* lab : {m_depth, m_distScale}) {
        lab->setTextInteractionFlags(Qt::TextSelectableByMouse);
    }
    form->addRow(QStringLiteral("深度"), m_depth);
    form->addRow(QStringLiteral("距离缩放"), m_distScale);

    m_pivot = new Vec2ParamControl(this);
    m_pivot->setToolTip(QStringLiteral("枢轴在世界坐标中的位置（限制在轮廓包络内），用于重定位局部原点"));
    form->addRow(QStringLiteral("中心坐标"), m_pivot);

    m_centroid = new Vec2ParamControl(this);
    m_centroid->setToolTip(QStringLiteral("实体几何质心的世界坐标；修改将整体平移实体"));
    form->addRow(QStringLiteral("位置"), m_centroid);

    m_userScale = new QDoubleSpinBox(this);
    m_userScale->setRange(0.05, 20.0);
    m_userScale->setDecimals(3);
    m_userScale->setSingleStep(0.05);
    m_userScale->setValue(1.0);
    m_userScale->setToolTip(QStringLiteral("人为整体缩放，与深度距离缩放相乘"));
    form->addRow(QStringLiteral("整体缩放"), m_userScale);

    lay->addLayout(form);
    lay->addStretch(1);

    connect(m_name, &QLineEdit::editingFinished, this, [this]() {
        if (m_name) {
            emit displayNameCommitted(m_name->text());
        }
    });
    connect(m_pivot, &Vec2ParamControl::valueChanged, this, &EntityPropertySection::pivotEdited);
    connect(m_centroid, &Vec2ParamControl::valueChanged, this, &EntityPropertySection::centroidEdited);
    connect(m_userScale, qOverload<double>(&QDoubleSpinBox::valueChanged), this, &EntityPropertySection::userScaleEdited);
}

void EntityPropertySection::clearDisconnected() {
    setEditingEnabled(false);
    if (m_name) {
        m_name->blockSignals(true);
        m_name->clear();
        m_name->blockSignals(false);
    }
    if (m_depth) m_depth->setText(QStringLiteral("-"));
    if (m_distScale) m_distScale->setText(QStringLiteral("-"));
    if (m_pivot) m_pivot->setValue(0.0, 0.0);
    if (m_centroid) m_centroid->setValue(0.0, 0.0);
    if (m_userScale) {
        m_userScale->blockSignals(true);
        m_userScale->setValue(1.0);
        m_userScale->blockSignals(false);
    }
}

void EntityPropertySection::applyState(const EntityPropertyUiState& s) {
    setEditingEnabled(true);
    if (m_name) {
        m_name->blockSignals(true);
        m_name->setText(s.displayName);
        m_name->blockSignals(false);
    }
    if (m_depth) m_depth->setText(QString::number(s.depthZ));
    if (m_distScale) m_distScale->setText(s.distanceScaleText);
    if (m_pivot) m_pivot->setValue(s.pivot.x(), s.pivot.y());
    if (m_centroid) m_centroid->setValue(s.centroid.x(), s.centroid.y());
    if (m_userScale) {
        m_userScale->blockSignals(true);
        m_userScale->setValue(s.userScale);
        m_userScale->blockSignals(false);
    }
}

void EntityPropertySection::setEditingEnabled(bool on) {
    if (m_name) m_name->setEnabled(on);
    if (m_pivot) m_pivot->setEnabled(on);
    if (m_centroid) m_centroid->setEnabled(on);
    if (m_userScale) m_userScale->setEnabled(on);
}

}  // namespace gui