#include "props/HotspotPropertySection.h"

#include <QComboBox>
#include <QFormLayout>
#include <QHash>
#include <QLabel>
#include <QListWidget>
#include <QMenu>
#include <QPushButton>
#include <QVBoxLayout>

namespace gui {

HotspotPropertySection::HotspotPropertySection(QWidget* parent) : PropertySectionWidget(parent) {
    auto* root = new QVBoxLayout(this);
    root->setContentsMargins(0, 0, 0, 0);

    auto* title = new QLabel(QStringLiteral("已添加热点"), this);
    root->addWidget(title);

    m_hotspotList = new QListWidget(this);
    m_hotspotList->setObjectName(QStringLiteral("PropertyPanelListWidget"));
    m_hotspotList->setMinimumHeight(120);
    m_hotspotList->setContextMenuPolicy(Qt::CustomContextMenu);
    root->addWidget(m_hotspotList);

    auto* form = new QFormLayout();
    form->setSpacing(6);
    root->addLayout(form);

    m_targetAnim = new QComboBox(this);
    m_targetAnim->setMinimumWidth(120);
    form->addRow(QStringLiteral("目标"), m_targetAnim);

    m_btnDelete = new QPushButton(QStringLiteral("删除"), this);
    root->addWidget(m_btnDelete);

    connect(m_targetAnim, QOverload<int>::of(&QComboBox::currentIndexChanged), this, [this](int) {
        if (m_hotspotId.isEmpty() || !m_targetAnim) {
            return;
        }
        const QString aid = m_targetAnim->currentData().toString();
        emit targetAnimationChanged(m_hotspotId, aid);
    });
    connect(m_hotspotList, &QListWidget::currentItemChanged, this, [this](QListWidgetItem* current, QListWidgetItem*) {
        const QString hotspotId = current ? current->data(Qt::UserRole).toString() : QString();
        if (hotspotId == m_hotspotId) {
            return;
        }
        m_hotspotId = hotspotId;
        emit hotspotSelected(hotspotId);
    });
    connect(m_hotspotList, &QListWidget::customContextMenuRequested, this, [this](const QPoint& pos) {
        if (!m_hotspotList) {
            return;
        }
        auto* item = m_hotspotList->itemAt(pos);
        if (!item) {
            return;
        }
        const QString hotspotId = item->data(Qt::UserRole).toString();
        if (hotspotId.isEmpty()) {
            return;
        }
        m_hotspotList->setCurrentItem(item);
        QMenu menu(this);
        auto* actDelete = menu.addAction(QStringLiteral("移除热点"));
        if (menu.exec(m_hotspotList->viewport()->mapToGlobal(pos)) == actDelete) {
            emit deleteRequested(hotspotId);
        }
    });
    connect(m_btnDelete, &QPushButton::clicked, this, [this]() {
        if (!m_hotspotId.isEmpty()) {
            emit deleteRequested(m_hotspotId);
        }
    });
}

void HotspotPropertySection::clearDisconnected() {
    m_hotspotId.clear();
}

void HotspotPropertySection::applyState(const QVector<core::Project::PresentationHotspot>& hotspots,
                                        const QString& selectedHotspotId,
                                        const QVector<QPair<QString, QString>>& animIdToLabelNonNone) {
    m_hotspotId = selectedHotspotId;
    if (!m_targetAnim || !m_hotspotList) {
        return;
    }
    QString targetAnimationId;
    QHash<QString, QString> animLabelById;
    for (const auto& p : animIdToLabelNonNone) {
        animLabelById.insert(p.first, p.second);
    }

    m_hotspotList->blockSignals(true);
    m_hotspotList->clear();
    QListWidgetItem* selectedItem = nullptr;
    for (const auto& hotspot : hotspots) {
        QString text = hotspot.id;
        const QString animLabel = animLabelById.value(hotspot.targetAnimationId);
        if (!animLabel.isEmpty()) {
            text += QStringLiteral(" -> ") + animLabel;
        } else if (!hotspot.targetAnimationId.isEmpty()) {
            text += QStringLiteral(" -> ") + hotspot.targetAnimationId;
        } else {
            text += QStringLiteral(" -> 未设");
        }
        auto* item = new QListWidgetItem(text, m_hotspotList);
        item->setData(Qt::UserRole, hotspot.id);
        if (hotspot.id == selectedHotspotId) {
            selectedItem = item;
            targetAnimationId = hotspot.targetAnimationId;
        }
    }
    if (selectedItem) {
        m_hotspotList->setCurrentItem(selectedItem);
    } else {
        m_hotspotList->setCurrentRow(-1);
        m_hotspotId.clear();
    }
    m_hotspotList->blockSignals(false);

    m_targetAnim->blockSignals(true);
    m_targetAnim->clear();
    m_targetAnim->addItem(QStringLiteral("未设"), QString());
    for (const auto& p : animIdToLabelNonNone) {
        m_targetAnim->addItem(p.second, p.first);
    }
    int idx = -1;
    for (int i = 0; i < m_targetAnim->count(); ++i) {
        if (m_targetAnim->itemData(i).toString() == targetAnimationId) {
            idx = i;
            break;
        }
    }
    if (idx >= 0) {
        m_targetAnim->setCurrentIndex(idx);
    } else {
        m_targetAnim->setCurrentIndex(0);
    }
    m_targetAnim->blockSignals(false);

    const bool ok = !m_hotspotId.isEmpty() && m_targetAnim->count() > 0;
    m_targetAnim->setEnabled(ok);
    if (m_btnDelete) {
        m_btnDelete->setEnabled(!m_hotspotId.isEmpty());
    }
}

}  // namespace gui