#include "SchemeFlowWidget.h"

#include "shemeFlow/FlowGraphNodeWidget.h"
#include "ProjectManager.h"

#include <dbService/ClassSet.h>

#include <QGroupBox>
#include <QCheckBox>

#include <QBoxLayout>
#include <QDebug>

#include <QtNodes/GraphicsView>

using QtNodes::GraphicsView;

static std::shared_ptr<NodeDelegateModelRegistry> registerDataModels()
{
    auto ret = std::make_shared<NodeDelegateModelRegistry>();

    ret->registerModel<FlowTemplateDataModel>();
    ret->registerModel<FlowIndexDataModel>();
    ret->registerModel<FlowSampleDataModel>();
    ret->registerModel<FlowPCADataModel>();
    ret->registerModel<FlowWeightDataModel>();
    ret->registerModel<FlowResultDataModel>();
    ret->registerModel<FlowReportDataModel>();
    ret->registerModel<FlowEffiLevDataModel>();
    ret->registerModel<FlowSchemeDataModel>();
    ret->registerModel<FlowEffiDataModel>();
    ret->registerModel<FlowCommonDataModel>();

    return ret;
}

static void setStyle_()
{
    GraphicsViewStyle::setStyle(
            R"(
  {
    "GraphicsViewStyle": {
      "BackgroundColor": [255, 255, 255],
      "FineGridColor": [255, 255, 255],
      "CoarseGridColor": [255, 255, 255]
    }
  }
  )");

    NodeStyle::setNodeStyle(
            R"(
  {
    "NodeStyle": {
      "NormalBoundaryColor": "darkgray",
      "SelectedBoundaryColor": "deepskyblue",
      "GradientColor0": "mintcream",
      "GradientColor1": "mintcream",
      "GradientColor2": "mintcream",
      "GradientColor3": "mintcream",
      "ShadowColor": [200, 200, 200],
      "FontColor": [10, 10, 10],
      "FontColorFaded": [100, 100, 100],
      "ConnectionPointColor": "white",
      "PenWidth": 2.0,
      "HoveredPenWidth": 2.5,
      "ConnectionPointDiameter": 10.0,
      "Opacity": 1.0
    }
  }
  )");

    ConnectionStyle::setConnectionStyle(
            R"(
  {
    "ConnectionStyle": {
      "ConstructionColor": "gray",
      "NormalColor": "black",
      "SelectedColor": "gray",
      "SelectedHaloColor": "deepskyblue",
      "HoveredColor": "deepskyblue",

      "LineWidth": 3.0,
      "ConstructionLineWidth": 2.0,
      "PointDiameter": 10.0,

      "UseDataDefinedColors": false
    }
  }
  )");
}

SchemeFlowWidget::SchemeFlowWidget(ProjectInfo *proj, int indexType, QWidget *parent) : QWidget(parent), m_proj(proj)
{
    setStyle_();

    initWidget();

    setType(indexType);
}

SchemeFlowWidget::~SchemeFlowWidget()
{
    delete m_graphModel;
}

void SchemeFlowWidget::setType(int t)
{
    m_indexType = t;
    refresh();
}

QList<SchemePlanManager::SchemeProcessInfo> SchemeFlowWidget::schemeTemplate(int projId, int indexType)
{
    /// 方案流程模板

    QList<SchemePlanManager::SchemeProcessType> types;
    switch (indexType) {
    case ProjectManager::AbilityIndex: {
        types = { SchemePlanManager::IndexSystem,    SchemePlanManager::ImportWeightData,
                  SchemePlanManager::OptimizeIndex,  SchemePlanManager::CalculateWeight,
                  SchemePlanManager::ShowEvalResult, SchemePlanManager::GenerateReport };
        //        types = { SchemePlanManager::IndexSystem };
        break;
    }
    case ProjectManager::TechIndex: {
        types = { SchemePlanManager::IndexSystem, SchemePlanManager::ImportEvalData, SchemePlanManager::RunEvaluate,
                  SchemePlanManager::ShowEvalResult, SchemePlanManager::GenerateReport };
        break;
    }
    case ProjectManager::OptimalIndex: {
        types = { SchemePlanManager::IndexSystem,    SchemePlanManager::ImportWeightData,
                  SchemePlanManager::OptimizeIndex,  SchemePlanManager::CalculateWeight,
                  SchemePlanManager::ImportEvalData, SchemePlanManager::RunEvaluate,
                  SchemePlanManager::ShowEvalResult, SchemePlanManager::GenerateReport };
        break;
    }
    case ProjectManager::EfficiencyIndex: {
        types = { SchemePlanManager::IndexSystem,    SchemePlanManager::ImportWeightData,
                  SchemePlanManager::OptimizeIndex,  SchemePlanManager::CalculateWeight,
                  SchemePlanManager::ImportEvalData, SchemePlanManager::RunEvaluate,
                  SchemePlanManager::ShowEvalResult, SchemePlanManager::GenerateReport };
        break;
    }
    }

    QList<SchemePlanManager::SchemeProcessInfo> schemes;
    for (int i = 0; i < types.count(); i++) {
        SchemePlanManager::SchemeProcessInfo process;
        process.projectId = projId;
        process.indexType = indexType;
        process.type      = types[i];
        process.step      = i;
        schemes.append(process);
    }

    return schemes;
}

void SchemeFlowWidget::initWidget()
{
    m_graphModel = new DataFlowModel(registerDataModels());
    m_graphModel->setNodesLocked(true);
    m_graphModel->setDetachPossible(false);

    auto scene         = new DataFlowGraphicsScene(*m_graphModel);
    GraphicsView *view = new GraphicsView(scene);
    scene->setOrientation(Qt::Vertical);

    QHBoxLayout *l = new QHBoxLayout(this);
    l->addWidget(view);
}

void SchemeFlowWidget::clearAllNodes()
{
    for (int id : m_graphModel->allNodeIds()) {
        m_graphModel->deleteNode(id);
    }
}

void SchemeFlowWidget::refresh()
{
    clearAllNodes();

    int y         = 0;   // 流程图节点位置
    int space     = 50;  // 流程图节点间距
    NodeId lastId = -1;

    QList<SchemePlanManager::SchemeProcessInfo> scheme = schemeTemplate(m_proj->id, m_indexType);
    for (int i = 0; i < scheme.count(); i++) {
        NodeId id = m_graphModel->addNode(FlowCommonData().type().id);
        m_graphModel->setNodeData(id, NodeRole::Position, QPointF(0, y));
        FlowGraphCommonNodeWidget *w = new FlowGraphCommonNodeWidget();
        connect(w, &FlowGraphCommonNodeWidget::sigProcessChanged, this, &SchemeFlowWidget::slotSchemeProcessEdited);
        SchemePlanManager::SchemeProcessInfo process = scheme[i];
        w->setProcess(process);
        if (w->isTitleHidden()) {
            m_graphModel->setNodeData(id, NodeRole::Caption, SchemePlanManager::processName(process));
        }
        m_graphModel->setNodeData(id, NodeRole::Widget, QVariant::fromValue(w));
        if (lastId >= 0) {
            m_graphModel->addConnection(ConnectionId { lastId, 0, id, 0 });
        }

        QSize s = m_graphModel->nodeData(id, NodeRole::Size).toSize();
        y += (s.height() + space);

        lastId = id;
    }
}

void SchemeFlowWidget::slotSchemeProcessEdited(const SchemePlanManager::SchemeProcessInfo &process)
{
    qDebug() << __FUNCTION__ << __LINE__ << process.algorithm << endl;
}