#include "NuclideRayListDialog.h"
#include <QTableView>
RayButtonDelegate::RayButtonDelegate(QObject *parent) : QStyledItemDelegate(parent) {}

void RayButtonDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    if (index.column() == 8) { // 第8列是操作列
        // 绘制编辑按钮
        QStyleOptionButton editBtn;
        editBtn.rect = QRect(option.rect.x(), option.rect.y() + 2, 60, option.rect.height() - 4);
        editBtn.text = QStringLiteral(u"编辑");
        editBtn.state = QStyle::State_Enabled;
        if (option.state & QStyle::State_MouseOver)
            editBtn.state |= QStyle::State_MouseOver;
        QApplication::style()->drawControl(QStyle::CE_PushButton, &editBtn, painter);

        // 绘制删除按钮
        QStyleOptionButton delBtn;
        delBtn.rect = QRect(option.rect.x() + 70, option.rect.y() + 2, 60, option.rect.height() - 4);
        delBtn.text = QStringLiteral(u"删除");
        delBtn.state = QStyle::State_Enabled;
        if (option.state & QStyle::State_MouseOver)
            delBtn.state |= QStyle::State_MouseOver;
        QApplication::style()->drawControl(QStyle::CE_PushButton, &delBtn, painter);
    } else {
        QStyledItemDelegate::paint(painter, option, index);
    }
}

bool RayButtonDelegate::editorEvent(QEvent *event, QAbstractItemModel *model, const QStyleOptionViewItem &option, const QModelIndex &index)
{
    if (index.column() == 8 && event->type() == QEvent::MouseButtonRelease) {
        QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
        QRect editRect = QRect(option.rect.x(), option.rect.y() + 2, 60, option.rect.height() - 4);
        QRect delRect = QRect(option.rect.x() + 70, option.rect.y() + 2, 60, option.rect.height() - 4);

        if (editRect.contains(mouseEvent->pos())) {
            emit editButtonClicked(index);
            return true;
        } else if (delRect.contains(mouseEvent->pos())) {
            emit deleteButtonClicked(index);
            return true;
        }
    }
    return QStyledItemDelegate::editorEvent(event, model, option, index);
}

NuclideRayListDialog::NuclideRayListDialog(const QString& nuclideId, const QString& nuclideName, QWidget *parent)
    : QDialog(parent), m_nuclideId(nuclideId), m_nuclideName(nuclideName)
{
    initUI();
    loadRayData();
}

void NuclideRayListDialog::initUI()
{
    setWindowTitle(QStringLiteral(u"%1 - 射线信息管理").arg(m_nuclideName));
    setFixedSize(1100, 500);

    QVBoxLayout *mainLayout = new QVBoxLayout(this);

    // 添加按钮
    QPushButton *btnAdd = new QPushButton(QStringLiteral(u"添加射线"), this);
    connect(btnAdd, &QPushButton::clicked, this, &NuclideRayListDialog::onAddRayClicked);
    mainLayout->addWidget(btnAdd, 0, Qt::AlignRight);

    // 射线列表
    m_model = new QStandardItemModel(0, 9, this);
    m_model->setHorizontalHeaderLabels({
        QStringLiteral(u"ID"), QStringLiteral(u"射线类型"), QStringLiteral(u"能量(MeV)"), QStringLiteral(u"能量不确定度"), QStringLiteral(u"分支比"),
        QStringLiteral(u"分支比不确定度"), QStringLiteral(u"主射线"), QStringLiteral(u"加和峰"), QStringLiteral(u"操作")
    });

    QTableView *tableView = new QTableView(this);
    tableView->setModel(m_model);
    tableView->verticalHeader()->setVisible(false);
    tableView->setColumnWidth(0, 80);    // ID
    tableView->setColumnWidth(1, 80);    // 射线类型
    tableView->setColumnWidth(2, 120);   // 能量
    tableView->setColumnWidth(3, 120);   // 能量不确定度
    tableView->setColumnWidth(4, 100);   // 分支比
    tableView->setColumnWidth(5, 120);   // 分支比不确定度
    tableView->setColumnWidth(6, 80);    // 主射线
    tableView->setColumnWidth(7, 100);   // 加和峰
    tableView->setColumnWidth(8, 150);   // 操作列

    tableView->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
    tableView->setAlternatingRowColors(true);
    tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
    tableView->setFocusPolicy(Qt::NoFocus);

    // 设置委托
    m_delegate = new RayButtonDelegate(this);
    tableView->setItemDelegateForColumn(8, m_delegate);
    connect(m_delegate, &RayButtonDelegate::editButtonClicked, this, &NuclideRayListDialog::onEditRayClicked);
    connect(m_delegate, &RayButtonDelegate::deleteButtonClicked, this, &NuclideRayListDialog::onDeleteRayClicked);

    mainLayout->addWidget(tableView);

    // 关闭按钮
    QPushButton *btnClose = new QPushButton(QStringLiteral(u"关闭"), this);
    connect(btnClose, &QPushButton::clicked, this, &QDialog::accept);
    mainLayout->addWidget(btnClose, 0, Qt::AlignRight);
}

void NuclideRayListDialog::loadRayData()
{
    // 查询当前核素的所有射线信息
    QString sql = "SELECT ID, RAY_TYPE, RAY_MEV, RAY_MEV_UNCERTAINTY, RAY_BRANCH_RATIO, "
                  "RAY_BRANCH_RATIO_UNCERTAINTY, MAIN_RAY_IDENT, JIAHE_PEAK "
                  "FROM nuclideRayInfo WHERE NUCLIDE_ID = ?;";
    auto rows = SqliteManager::instance().selectRows(sql, {m_nuclideId});

    m_listRay.clear();
    m_model->setRowCount(0);
    int row = 0;

    for (const auto& rec : rows) {
        QStringList item;
        item << rec["ID"].toString()
             << rec["RAY_TYPE"].toString()
             << rec["RAY_MEV"].toString()
             << rec["RAY_MEV_UNCERTAINTY"].toString()
             << rec["RAY_BRANCH_RATIO"].toString()
             << rec["RAY_BRANCH_RATIO_UNCERTAINTY"].toString()
             << rec["MAIN_RAY_IDENT"].toString()
             << rec["JIAHE_PEAK"].toString();
        m_listRay.append(item);

        // 插入模型行
        QList<QStandardItem*> rowItems;
        // 第0列：ID（隐藏）
        QStandardItem *idItem = new QStandardItem(item[0]);
        idItem->setTextAlignment(Qt::AlignCenter);
        idItem->setFlags(idItem->flags() & ~Qt::ItemIsEditable);
        rowItems << idItem;

        // 第1~7列：射线数据
        for (int col = 1; col <= 7; ++col) {
            QStandardItem *dataItem = new QStandardItem(item[col]);
            dataItem->setTextAlignment(Qt::AlignCenter);
            dataItem->setFlags(dataItem->flags() & ~Qt::ItemIsEditable);
            rowItems << dataItem;
        }

        // 第8列：操作列
        QStandardItem *opItem = new QStandardItem("");
        opItem->setFlags(opItem->flags() & ~Qt::ItemIsEditable);
        rowItems << opItem;

        m_model->appendRow(rowItems);
        ++row;
    }
}

QStringList NuclideRayListDialog::getRayData(const QString &id)
{
    for (const auto& item : m_listRay) {
        if (item.at(0) == id)
            return item;
    }
    return QStringList();
}

void NuclideRayListDialog::onAddRayClicked()
{
    NuclideRayDialog dlg(false, {}, this);
    if (dlg.exec() == QDialog::Accepted) {
        QStringList data = dlg.getRayData();
        if (data.size() < 7) return;

        QMap<QString, QVariant> fieldValues;
        fieldValues["NUCLIDE_ID"] = m_nuclideId.toInt();
        fieldValues["RAY_TYPE"] = data[0];
        fieldValues["RAY_MEV"] = data[1];
        fieldValues["RAY_MEV_UNCERTAINTY"] = data[2];
        fieldValues["RAY_BRANCH_RATIO"] = data[3];
        fieldValues["RAY_BRANCH_RATIO_UNCERTAINTY"] = data[4];
        fieldValues["MAIN_RAY_IDENT"] = data[5];
        fieldValues["JIAHE_PEAK"] = data[6];
        fieldValues["CREATE_TIME"] = QDateTime::currentDateTime().toString("yyyy-MM-dd HH:mm:ss");

        qint64 newId = SqliteManager::instance().insertRow("nuclideRayInfo", fieldValues);
        if (newId > 0) {
            QMessageBox::information(this, QStringLiteral(u"成功"), QStringLiteral(u"射线信息添加成功！"));
            loadRayData(); // 刷新列表
        } else {
            QMessageBox::warning(this, QStringLiteral(u"失败"), QStringLiteral(u"添加失败：") + SqliteManager::instance().lastError());
        }
    }
}

void NuclideRayListDialog::onEditRayClicked(const QModelIndex &index)
{
    int row = index.row();
    QString id = m_model->index(row, 0).data().toString();
    QStringList data = getRayData(id);
    if (data.isEmpty()) return;

    NuclideRayDialog dlg(true, data, this);
    if (dlg.exec() == QDialog::Accepted) {
        QStringList newData = dlg.getRayData();
        if (newData.size() < 8) return;

        QMap<QString, QVariant> fieldValues;
        fieldValues["RAY_TYPE"] = newData[1];
        fieldValues["RAY_MEV"] = newData[2];
        fieldValues["RAY_MEV_UNCERTAINTY"] = newData[3];
        fieldValues["RAY_BRANCH_RATIO"] = newData[4];
        fieldValues["RAY_BRANCH_RATIO_UNCERTAINTY"] = newData[5];
        fieldValues["MAIN_RAY_IDENT"] = newData[6];
        fieldValues["JIAHE_PEAK"] = newData[7];

        int affectedRows = SqliteManager::instance().updateRow(
            "nuclideRayInfo",
            fieldValues,
            "ID = ?",
            {newData[0]}
        );

        if (affectedRows > 0) {
            QMessageBox::information(this, QStringLiteral(u"成功"), QStringLiteral(u"射线信息修改成功！"));
            loadRayData();
        } else if (affectedRows == 0) {
            QMessageBox::information(this, QStringLiteral(u"提示"), QStringLiteral(u"未修改任何数据！"));
        } else {
            QMessageBox::warning(this, QStringLiteral(u"失败"), QStringLiteral(u"修改失败：") + SqliteManager::instance().lastError());
        }
    }
}

void NuclideRayListDialog::onDeleteRayClicked(const QModelIndex &index)
{
    int row = index.row();
    QString id = m_model->index(row, 0).data().toString();

    QMessageBox box(QMessageBox::Question, QStringLiteral(u"提示"), QStringLiteral(u"确定删除该射线信息吗？"),
                    QMessageBox::Yes | QMessageBox::No, this);
    box.button(QMessageBox::Yes)->setText(QStringLiteral(u"确认"));
    box.button(QMessageBox::No)->setText(QStringLiteral(u"取消"));
    if (box.exec() != QMessageBox::Yes) return;

    bool ok = SqliteManager::instance().deleteRow("nuclideRayInfo", "ID = ?", {id});
    if (ok) {
        loadRayData();
    } else {
        QMessageBox::warning(this, QStringLiteral(u"错误"), QStringLiteral(u"删除失败：") + SqliteManager::instance().lastError());
    }
}