#include <QMenu>
#include <QMessageBox>
#include "diagramEditor/diagramEditorWizard.h"
#include "diagramEditor/wizardBusTableDelegate.h"
#include "ui_diagramEditorWizard.h"

DiagramEditorWizard::DiagramEditorWizard(QWidget *parent)
    : QDialog(parent)
    , ui(new Ui::diagramEditorWizard)
{
    ui->setupUi(this);
    _busPageChanged = false;
    this->setWindowFlags(Qt::FramelessWindowHint | windowFlags());
    initial();
}

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

void DiagramEditorWizard::initial()
{
    ui->tabWidget->tabBar()->setEnabled(false);
    connect(ui->btn_ok,&QPushButton::clicked,this,&DiagramEditorWizard::onOkClicked);
    connect(ui->btn_cancel,&QPushButton::clicked,this,&DiagramEditorWizard::onCancelClicked);
    connect(ui->btn_last,&QPushButton::clicked,this,&DiagramEditorWizard::onLastClicked);
    connect(ui->btn_next,&QPushButton::clicked,this,&DiagramEditorWizard::onNextClicked);
    connect(ui->btn_addBus,&QPushButton::clicked,this,&DiagramEditorWizard::onAddBusClicked);
    connect(ui->btn_addBay,&QPushButton::clicked,this,&DiagramEditorWizard::onAddBayClicked);
    connect(ui->btn_addTrans,&QPushButton::clicked,this,&DiagramEditorWizard::onAddTransClicked);

    QStringList headerText;
    headerText<<"层级"<<"电压等级"<<"主接线"<<"分段方式"<<"接线方式";
    ui->tableWidget_bus->setContextMenuPolicy(Qt::CustomContextMenu);
    ui->tableWidget_bus->setSelectionMode(QAbstractItemView::SingleSelection);
    ui->tableWidget_bus->setSelectionBehavior(QAbstractItemView::SelectRows);
    ui->tableWidget_bus->setColumnCount(headerText.count());
    ui->tableWidget_bus->setHorizontalHeaderLabels(headerText);
    ui->tableWidget_bus->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);

    WizardBusTableDelegate* delegate = new WizardBusTableDelegate(this);
    ui->tableWidget_bus->setItemDelegate(delegate);

    connect(delegate,&WizardBusTableDelegate::editingFinished,this,&DiagramEditorWizard::onDelegateFinishEdit);
    connect(ui->tableWidget_bus, &QTableWidget::customContextMenuRequested, this, &DiagramEditorWizard::onBusIndexRbtnClicked);
}

void DiagramEditorWizard::reOrderBus()
{
    reindexQMap(_mapBus);

    for(int row = 0 ;row < ui->tableWidget_bus->rowCount();++row)
    {
        QTableWidgetItem* pItem = ui->tableWidget_bus->item(row,0);
        pItem->setText("第"+QString::number(row)+"层");
        pItem->setData(Qt::UserRole,row);
    }
}

template <typename T> void DiagramEditorWizard::reindexQMap(QMap<int, T> &map) {
    if (map.isEmpty())
        return;

    // 保存原数据的值（按原键升序排列）
    QVector<T> values;
    values.reserve(map.size());
    for (auto it = map.begin(); it != map.end(); ++it) {
        values.append(std::move(it.value())); // 使用移动语义
    }

    // 清空原map并重新插入连续键
    map.clear();
    for (int newKey = 0; newKey < values.size(); ++newKey) {
        map.insert(newKey, std::move(values[newKey])); // 再次移动
    }
}

void DiagramEditorWizard::onOkClicked()
{
    DiagramEditorWizardInfo info;

    emit wizardFinish(info);
    hide();
}

void DiagramEditorWizard::onCancelClicked()
{
    hide();
}

void DiagramEditorWizard::onLastClicked()
{
    if(ui->tabWidget->currentIndex() == 2){
        ui->tabWidget->setCurrentIndex(1);
        ui->stackedWidget_last->setCurrentIndex(1);
        ui->stackedWidget_next->setCurrentIndex(0);
    }
    else if(ui->tabWidget->currentIndex() == 1){
        ui->tabWidget->setCurrentIndex(0);
        ui->stackedWidget_last->setCurrentIndex(0);
        ui->stackedWidget_next->setCurrentIndex(0);
    }
}

void DiagramEditorWizard::onNextClicked()
{
    if(ui->tabWidget->currentIndex() == 0){
        ui->tabWidget->setCurrentIndex(1);
        ui->stackedWidget_last->setCurrentIndex(1);
        ui->stackedWidget_next->setCurrentIndex(0);


    }
    else if(ui->tabWidget->currentIndex() == 1){
        ui->tabWidget->setCurrentIndex(2);
        ui->stackedWidget_last->setCurrentIndex(1);
        ui->stackedWidget_next->setCurrentIndex(1);
    }
}

void DiagramEditorWizard::onAddBusClicked()
{
    int row = ui->tableWidget_bus->rowCount();
    ui->tableWidget_bus->insertRow(row);

    // 层级
    QTableWidgetItem* levelItem = new QTableWidgetItem("第"+QString::number(row)+"层");
    ui->tableWidget_bus->setItem(row, 0, levelItem);
    levelItem->setData(Qt::UserRole,row);

    // 电压等级
    QTableWidgetItem* voltageItem = new QTableWidgetItem("未设置");
    ui->tableWidget_bus->setItem(row, 1, voltageItem);

    // 主接线
    QTableWidgetItem* typeItem = new QTableWidgetItem("未设置");
    ui->tableWidget_bus->setItem(row, 2, typeItem);

    // 分段方式
    QTableWidgetItem* divideItem = new QTableWidgetItem("未设置");
    ui->tableWidget_bus->setItem(row, 3, divideItem);

    // 接线方式
    QTableWidgetItem* connectItem = new QTableWidgetItem("未选择");
    ui->tableWidget_bus->setItem(row, 4, connectItem);

    DiagramEditorBusInfo info;
    info.nIndex = row;
    _mapBus.insert(row,info);
}

void DiagramEditorWizard::onAddBayClicked()
{

}

void DiagramEditorWizard::onAddTransClicked()
{

}

void DiagramEditorWizard::onDelegateFinishEdit(const QModelIndex &index, const QString &value)
{
    int row = index.row();
    int col = index.column();
    if(_mapBus.contains(row)){
        if(col == 1){
            _mapBus[row].dVoltage = value.toDouble();
        }
        else if(col == 2){
            _mapBus[row].nLineType = value.toInt();
            QTableWidgetItem *divideItem = ui->tableWidget_bus->item(row, 3);
            divideItem->setText("未设置");
            divideItem->setData(Qt::UserRole,0);
        }
        else if(col == 3){
            _mapBus[row].mapDivide.clear();
            QStringList lst = value.split(",");
            if(lst.size() > 1)      //双母
            {
                _mapBus[row].mapDivide[0] = lst[0].toInt();
                _mapBus[row].mapDivide[1] = lst[1].toInt();
            }
            else{       //单母
                _mapBus[row].mapDivide[0] = lst[0].toInt();
            }
        }
        else if(col == 4){
            _mapBus[row].connectType = value.toInt();
        }
        _busPageChanged = true;
        //qDebug() << row<<","<<col<<":"<<value;
    }
}

void DiagramEditorWizard::onBusDeleteClicked()
{
    // 获取当前选中的索引
    QMessageBox msgBox;
    msgBox.setText(QString::fromWCharArray(L"提示"));
    msgBox.setInformativeText(QString::fromWCharArray(L"确认删除?"));
    msgBox.setStandardButtons(QMessageBox::Ok | QMessageBox::Cancel);
    msgBox.setDefaultButton(QMessageBox::Cancel);
    int ret = msgBox.exec();
    switch (ret) {
    case QMessageBox::Ok:
    {
        QModelIndexList selectedIndexes = ui->tableWidget_bus->selectionModel()->selectedRows();
        if (selectedIndexes.isEmpty()) {
            return; // 没有选中任何行
        }

        // 获取当前选中的第一项索引
        QModelIndex index = selectedIndexes.first();
        if (!index.isValid()) {
            return;
        }

        QModelIndex indexName = index.sibling(index.row(),0);
        int nIndex = indexName.data(Qt::UserRole).toInt();
        if(_mapBus.contains(nIndex)){
            DiagramEditorBusInfo info = _mapBus.take(nIndex);
        }

        int currentRow = ui->tableWidget_bus->currentRow();
        if (currentRow == -1) {
            return;  // 没有选中行
        }

        ui->tableWidget_bus->removeRow(currentRow);
        reOrderBus();
    }
    break;
    case QMessageBox::Cancel:
        // Cancel was clicked
        break;
    default:
        // should never be reached
        break;
    }
}

void DiagramEditorWizard::onBusIndexRbtnClicked(const QPoint &pos)
{
    // 获取当前点击的位置对应的索引
    QModelIndex index = ui->tableWidget_bus->indexAt(pos);
    if (!index.isValid()) {
        return; // 如果点击的是空白区域，直接返回
    }

    QMenu menu;
    QAction *deleteAction = new QAction("删除本层", this);
    menu.addAction(deleteAction);

    // 连接删除菜单项的触发信号与槽函数
    connect(deleteAction, &QAction::triggered, this, &DiagramEditorWizard::onBusDeleteClicked);

    // 在点击位置显示菜单
    menu.exec(ui->tableWidget_bus->mapToGlobal(pos));
}