#include <QJsonArray>
#include "drawingPanel.h"
#include "ui_drawingPanel.h"
#include <QMessageBox>
#include <QCloseEvent>
#include "designerView.h"
#include "graphicsDataModel/fixedPortsModel.h"
#include "graphicsItem/graphicsBaseItem.h"
#include "util/selectorManager.h"
#include "statusBar.h"
#include "dataBase.h"
#include "powerEntity.h"
#include "topologyManager.h"
#include "projectDiagramNameInput.h"
#include "baseProperty.h"
#include "graphicsItem/electricBayItem.h"

DrawingPanel::DrawingPanel(PowerEntity* pEntity,QWidget *parent,DiagramMode mode)
    : QWidget(parent)
    , ui(new Ui::drawingPanel)
    ,_pModel(nullptr)
    ,_mode(mode)
    ,_pEntity(pEntity)
    ,m_pDiagramNameInputer(nullptr)
{
    ui->setupUi(this);

    _pModel = new FixedPortsModel(pEntity);
    _pModel->setTopWidget(this);
    if(mode == DM_edit || mode == DM_baseModel)
        m_pSelectorManager = new SelectorManager(_pModel,this);
    m_pGraphicsScene = new DesignerScene(_pModel,this);
    //设置场景大小.前两个参数为scene的坐标远点，设置到view的中心点后，无论view如何缩放，secne的坐标原点都不会动，方便后续的位置计算
    m_pGraphicsScene->setSceneRect(0,0, g_dGriaphicsScene_Width*4, g_dGriaphicsScene_Height*4);
    m_pGraphicsScene->setGridVisible(true);

    m_pGraphicsView = new DesignerView(this);
    m_pGraphicsView->setScene(m_pGraphicsScene);
    m_pGraphicsScene->setView(m_pGraphicsView);
    ui->mainLayout->addWidget(m_pGraphicsView);
    _pModel->setScene(m_pGraphicsScene);

    m_pStatusBar = new StatusBar(this);
    if(mode == DM_edit)
        m_pStatusBar->setButtonVisible(false);
    ui->mainLayout->addWidget(m_pStatusBar);
    connect(m_pGraphicsView,&DesignerView::onScaleChanged,m_pStatusBar,&StatusBar::onScaleLevelChanged);
    connect(m_pStatusBar,&StatusBar::generateDiagram,this,&DrawingPanel::onSignal_Generate);
}

DrawingPanel::~DrawingPanel()
{
    delete ui;
    if(_pModel)
        delete _pModel;
}

QGraphicsScene* DrawingPanel::getQGraphicsScene()
{
    return m_pGraphicsView->scene();
}

DesignerScene* DrawingPanel::getDesignerScene()
{
    return m_pGraphicsScene;
}

void DrawingPanel::grahpicsViewZoomIn()
{
    m_pGraphicsView->zoomIn();
}

void DrawingPanel::grahpicsViewZoomOut()
{
    m_pGraphicsView->zoomOut();
}

void DrawingPanel::grahpicsViewZoomFit()
{
    m_pGraphicsView->zoomFit();
}

GraphicsItemGroup* DrawingPanel::createItemGroup()
{
    return m_pGraphicsScene->createGroup();
}

void DrawingPanel::destroyItemGroup()
{
    m_pGraphicsScene->destroyGroup();
}

SelectorManager* DrawingPanel::selectorManager() const
{
    if(m_pSelectorManager)
        return m_pSelectorManager;
    else
        return NULL;
}

void DrawingPanel::closeEvent(QCloseEvent *closeEvent)
{
    if(getMode() == DM_edit)
    {
        bool changed = false;
        QMap<QUuid,GraphicsProjectModelItem*> map = _pModel->allItems();
        if(_pModel)
        {
            for(auto pItem:map)
            {
                if(pItem->itemChanged())
                {
                    changed = true;
                    break;
                }
            }
        }

        if(changed)
        {
            QMessageBox msgBox;
            msgBox.setText(QString::fromWCharArray(L"提示"));
            msgBox.setInformativeText(QString::fromWCharArray(L"保存修改内容?"));
            msgBox.setStandardButtons(QMessageBox::Ok | QMessageBox::Cancel);
            msgBox.setDefaultButton(QMessageBox::Cancel);
            int ret = msgBox.exec();
            switch (ret) {
            case QMessageBox::Ok:
            {
                for(auto pItem:map)
                {
                    if(pItem->itemChanged())
                        pItem->updateConnectData();
                }
                if(DataBase::GetInstance()->getPageIdByName(_name) == -1)        //不存在，创建
                    DataBase::GetInstance()->insertPage(_name,_name,QJsonObject(),getDiagramInfo(),QString("page"),1);
                else
                    DataBase::GetInstance()->updatePage(_name,_name,getDiagramInfo());
                int pageId = DataBase::GetInstance()->getPageIdByName(_name);
                saveNodes(pageId);
                //todo:同步图形数据到数据对象，保存到服务器
            }
            break;
            case QMessageBox::Cancel:
            {
                //todo:取消保存，删除panel
            }
            break;
            default:
                // should never be reached
                break;
            }
        }
        emit panelDelete(_name);
    }
    else if(getMode() == DM_baseModel)
    {

    }
}

void DrawingPanel::onSignal_addGraphicsItem(modelStateInfo& info)
{
    if(m_pSelectorManager)
    {
        m_pSelectorManager->setWorkingSelector(ST_cerating);
        m_pSelectorManager->setDrawGraphicsItem(info);
    }
}

void DrawingPanel::onSignal_Generate()
{
    if(m_pDiagramNameInputer == nullptr){
        m_pDiagramNameInputer = new ProjectDiagramNameInput(this);
        m_pDiagramNameInputer->setModel(_pModel);
        connect(m_pDiagramNameInputer,&ProjectDiagramNameInput::onGenerateClicked,_pModel,&FixedPortsModel::onSignal_generateDiagram);
    }
    m_pDiagramNameInputer->show();
}

QJsonObject DrawingPanel::getDiagramInfo() const
{
    QJsonObject obj;
    QJsonArray arr;
    if(_pModel)
    {
        QMap<QUuid,itemPageInfo> map = _pModel->allNodePos();
        for(auto iter = map.begin();iter != map.end();++iter)
        {
            QJsonObject node;
            node["id"] = iter.key().toString();
            node["x"] = iter.value().pos.x();
            node["y"] = iter.value().pos.y();
            node["width"] = iter.value().dWidth;
            node["height"] = iter.value().dHeight;
            arr.append(node);
        }
        obj["nodes"] = arr;

        QJsonArray arrConnect;
        QVector<ModelProperty*> vec = _pModel->allConnectionProperty();
        for(auto& pPro:vec){
            Connection con = pPro->getConnection();
            QJsonObject connect;
            connect["id"] = pPro->uuid().toString();
            connect["SrcNodeId"] = con.nSrcNodeId.toString();
            connect["SrcPortId"] = con.nSrcPortId.toString();
            connect["DestNodeId"] = con.nDestNodeId.toString();
            connect["DestPortId"] = con.nDestPortId.toString();
            arrConnect.append(connect);
        }
        obj["connections"] = arrConnect;

        QJsonArray arrBay;
        QMap<QUuid,ElectricBayItem*> mapBay =  _pModel->allBayItem();
        for(auto& bayItem:mapBay){
            AbstractProperty* pPro = bayItem->getProperty();
            BayProperty* pBay = dynamic_cast<BayProperty*>(pPro);
            if(pBay)
            {
                QJsonObject bay;
                bay["id"] = pBay->uuid().toString();
                arrBay.append(bay);
            }
        }
        obj["bays"] = arrBay;
    }
    return obj;
}

void DrawingPanel::loadNodes(QJsonObject obj)
{
    QJsonArray nodesJsonArray = obj["nodes"].toArray();

    for (QJsonValueRef nodeJson : nodesJsonArray)
    {
        QJsonObject node = nodeJson.toObject();
        QString uuid = node["id"].toString();
        double dX = node["x"].toDouble();
        double dY = node["y"].toDouble();
        double dWidth = node["width"].toDouble();
        double dHeight = node["height"].toDouble();

        //componentInfo info =DataBase::GetInstance()->getComponentInfoByUuid(uuid);
        if(_pModel)
        {
            _pModel->addNodeItem(QUuid(uuid)/*,info.type*/,QPointF(dX,dY),dWidth,dHeight);
        }
    }

    QJsonArray connectArr = obj["connections"].toArray();
    for(QJsonValueRef connectJson:connectArr)
    {
        QJsonObject connect = connectJson.toObject();
        QUuid id = QUuid(connect["id"].toString());         //电缆线id，关联component中的电缆
        QUuid srcId = QUuid(connect["SrcNodeId"].toString());
        QUuid srcPortId = QUuid(connect["SrcPortId"].toString());
        QUuid destId = QUuid(connect["DestNodeId"].toString());
        QUuid destPortId = QUuid(connect["DestPortId"].toString());

        PowerConnection* pCon = TopologyManager::instance().connection(srcPortId.toString(),destPortId.toString());
        if(pCon)
        {
            QString srcItemId = pCon->fromComponent();
            QString destItemId = pCon->toComponent();
            //todo:从拓扑结构中查找port的id
            if(_pModel)
            {
                _pModel->addConnectLline(id,QUuid(srcItemId),QUuid(destItemId),srcPortId,destPortId);
            }
        }
        else
        {
            //todo:提示拓扑结构已改变
        }
    }

    QJsonArray bayArr = obj["bays"].toArray();
    for(QJsonValueRef bayJson:bayArr)
    {
        QJsonObject bay = bayJson.toObject();
        QUuid id = QUuid(bay["id"].toString());
        if(_pModel)
        {
            _pModel->addBayItem(id);
        }
    }

    if(_mode == DM_run)
    {
        if(_pModel)
            _pModel->startHttpRequest();
    }
}

void DrawingPanel::saveNodes(int pageId)
{
    if(_pModel)
        _pModel->saveNode(pageId);
}