package com.zt.life.modules.taskReliability.service;

import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONObject;
import com.zt.common.service.BaseService;
import com.zt.common.utils.JsonUtils2;
import com.zt.common.utils.UUIDUtil;
import com.zt.life.modules.taskReliability.dao.AlgorithmDao;
import com.zt.life.modules.taskReliability.dao.ModelLineDao;
import com.zt.life.modules.taskReliability.dao.ModelNodeDao;
import com.zt.life.modules.taskReliability.dao.ModelRbdDao;
import com.zt.life.modules.taskReliability.dto.ModelLinePair;
import com.zt.life.modules.taskReliability.model.Algorithm;
import com.zt.life.modules.taskReliability.model.ModelLine;
import com.zt.life.modules.taskReliability.model.ModelNode;
import com.zt.life.modules.taskReliability.model.ModelRbd;
import org.apache.commons.lang3.StringUtils;
import org.checkerframework.checker.units.qual.C;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.zt.common.db.query.QueryFilter;
import org.springframework.transaction.annotation.Transactional;

import java.util.*;
import java.util.stream.Collectors;


/**
 * model_line
 *
 * @author zt generator 
 * @since 1.0.0 2024-02-28
 */
@Service
public class ModelLineService  extends BaseService<ModelLineDao, ModelLine> {
    @Autowired
    private ModelLineDao modelLineDao;
    @Autowired
    private ModelNodeDao modelNodeDao;
    @Autowired
    private ModelRbdDao modelRbdDao;
    @Autowired
    private AlgorithmDao algorithmDao;

    /**
     * 分页查询
     *
     * @param queryFilter
     * @return
     */
    public List<ModelLine> page(QueryFilter queryFilter) {
        return baseDao.getList(queryFilter.getQueryParams());
    }

    public ModelRbd getDiagram(Long modelId) {
        return modelRbdDao.getDiagram(modelId);
    }

    /**
     * 删除
     *
     * @param ids
     */
    public void delete(Long[] ids) {
        super.deleteLogic(ids);
    }

    @Transactional(rollbackFor = Exception.class)
    public void insert(ModelRbd modelRbd) {
        if (modelRbd==null) return;
        if (modelRbd.getId()==null) return;
        Long modelId = modelRbd.getId();

        // 删除既有数据
        modelRbdDao.deleteByModelId(modelId);

        // 插入数据
        modelRbd.setId(UUIDUtil.generateId());
        modelRbdDao.insert(modelRbd);
    }

    @Transactional(rollbackFor = Exception.class)
    public void update(ModelRbd modelRbd) {
        if (modelRbd==null) return;
        if (modelRbd.getId()==null) return;
        Long modelId = modelRbd.getId();

        // 删除既有数据
        modelRbdDao.deleteByModelId(modelId);

        modelRbdDao.insert(modelRbd);
    }

    @Transactional(rollbackFor = Exception.class)
    public boolean analyze(ModelRbd modelRbd) {
        boolean result = true;
        if (modelRbd==null) return result;
        Long modelId = modelRbd.getId();
        result = analyzeRbd(modelId, modelRbd.getContent(), true);
        return result;
    }

    private boolean analyzeRbd(Long modelId, String content, boolean saveFlag) {
        boolean result = true;
        String rbdsonStr = content;

        JSONArray rbdJsonArray = new JSONObject(rbdsonStr).getJSONArray("cells");
        if (rbdJsonArray == null) return result;

        // 解析结果存放list
        List<ModelNode> modelNodeList = new ArrayList<>();
        List<ModelLine> modelLineList = new ArrayList<>();
        List<Algorithm> algorithmList = new ArrayList<>();

        // 1. 解析出节点与边
        getNodeAndLineFromRbd(modelId, rbdJsonArray, modelNodeList, modelLineList);
        // 2. 计算所有节点的入口线数及出口线数
        calcInOutLineNumAllNode(modelNodeList, modelLineList);
        // 3. 复制产品节点(node)到list
        List<ModelNode> modelNodeAndVnodeList = modelNodeList.stream().filter(item ->
                "node".equals(item.getNodeType())).collect(Collectors.toList());
        // 4. 不断将基本模型（串联、并联、旁联、表决、桥联）替换为虚节点而简化图形，直至无法简化为止。
        result = getAlgorithmFromRbd(modelId, modelNodeList, modelLineList, algorithmList, modelNodeAndVnodeList);

        // 5. 保存模型
        if (saveFlag) saveModel(modelId, modelNodeList, modelLineList, algorithmList);

        return result;
    }

    private boolean getAlgorithmFromRbd(Long modelId,
                                     List<ModelNode> modelNodeList,
                                     List<ModelLine> modelLineList,
                                     List<Algorithm> algorithmList,
                                     List<ModelNode> modelNodeAndVnodeList) {
        // 根据以下的构图规则来进行算法分解：
        // 1、节点的定义
        // 1-1) 运算节点：共2个：旁联、表决，且运算节点需放在被运算节点的右侧。
        // 1-2) 产品节点：产品模型中的节点
        // 1-3) 连接节点：共3个：start、end、connect
        // 1-4) 虚节点：代替基本模型，构图规则上等效于产品节点
        // 2、基本模型的定义
        // 2-1) 串联：没有专门的表示符号，由节点间的连接关系定义。2个及以上的节点（产品节点或虚节点）只构成1条路径，终端节点只有1个出口（入口个数无限制）。
        // 2-2) 并联：没有专门的表示符号，由节点间的连接关系定义。2个及以上的节点（产品节点或虚节点）都只有1个入口和出口，且这些节点拥有同一个入口节点和同一个出口节点。
        // 2-3) 旁联：由专门的旁联运算符表示，每条旁联支路只有1个节点（产品节点或虚节点），这些节点都以该旁联节点为出口节点，且这些节点拥有同一个入口节点。
        // 2-4) 表决：由专门的表决运算符表示，每条表决支路只有1个节点（产品节点或虚节点），这些节点都以该表决节点为出口节点，且这些节点拥有同一个入口节点。
        // 2-5) 桥联：没有专门的表示符号，由节点间的连接关系定义。
        // 3、根据以上基本模型的定义，不断将基本模型简化为虚节点，直至简化完毕，或者无法简化为止。
        boolean isEnd = false; // 图形简化完毕（全部简化没了）
        boolean hasSimplified = false; // 至少简化了一处图形
        do {
            hasSimplified = false;
            hasSimplified = simplifySeries(modelId, modelNodeList, modelLineList, algorithmList, modelNodeAndVnodeList, hasSimplified);
            hasSimplified = simplifyParallel(modelId, modelNodeList, modelLineList, algorithmList, modelNodeAndVnodeList, hasSimplified);
            hasSimplified = simplifyOperator("switch", modelId, modelNodeList, modelLineList, algorithmList, hasSimplified);
            hasSimplified = simplifyOperator("vote", modelId, modelNodeList, modelLineList, algorithmList, hasSimplified);
            hasSimplified = simplifyBridge(modelId, modelNodeList, modelLineList, algorithmList, modelNodeAndVnodeList, hasSimplified);
            isEnd = simplifyEnd(modelId, modelNodeList, modelLineList, algorithmList, modelNodeAndVnodeList);
        } while (!isEnd && hasSimplified);

        // 合并碎片化了的串联

        // 合并碎片化了的并联

        return isEnd;
    }

    private boolean simplifyEnd(Long modelId,
                                List<ModelNode> modelNodeList,
                                List<ModelLine> modelLineList,
                                List<Algorithm> algorithmList,
                                List<ModelNode> modelNodeAndVnodeList) {
        ModelNode endNode = modelNodeList.stream().filter(item ->
                "end".equals(item.getNodeType())).collect(Collectors.toList()).get(0);
        if (endNode.getInLineNum()!=1) return false;

        ModelLine lineToEnd = modelLineList.stream().filter(item ->
                item.getEndCell().equals(endNode.getPicId())).collect(Collectors.toList()).get(0);
        ModelNode node = modelNodeList.stream().filter(item ->
                lineToEnd.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        if (node.getInLineNum()!=1 || node.getOutLineNum()!=1) return false;

        ModelLine lineToNode = modelLineList.stream().filter(item ->
                item.getEndCell().equals(node.getPicId())).collect(Collectors.toList()).get(0);
        ModelNode startNode = modelNodeList.stream().filter(item ->
                lineToNode.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        if (!"start".equals(startNode.getNodeType()) || startNode.getOutLineNum()!=1) return false;

        // 删除节点及连线
        modelLineList.remove(lineToEnd);
        modelLineList.remove(lineToNode);
        modelNodeList.remove(endNode);
        modelNodeList.remove(node);
        modelNodeList.remove(startNode);

        // 生成结束的算法步骤
        // 新增algorithm
        Algorithm algorithm = new Algorithm();
        Long id = UUIDUtil.generateId();
        algorithm.setId(id);
        algorithm.setModelId(modelId);
        algorithm.setComputerId(id);
        algorithm.setModelType(endNode.getNodeType());
        algorithm.setAlgorithmType(endNode.getNodeType());
        algorithm.setComputerList(node.getId().toString());
        algorithm.setObjectList(node.getName());
        algorithm.setStep(algorithmList.size());
        algorithmList.add(algorithm);

        // 新增结束的虚节点
        ModelNode vnode = new ModelNode();
        vnode.setId(id);
        vnode.setPicId(id.toString());
        vnode.setModelId(modelId);
        vnode.setNodeType("vnode");
        vnode.setName("v"+algorithm.getStep());
        modelNodeAndVnodeList.add(vnode);

        return true;
    }

    private boolean simplifySeries(Long modelId,
                                   List<ModelNode> modelNodeList,
                                   List<ModelLine> modelLineList,
                                   List<Algorithm> algorithmList,
                                   List<ModelNode> modelNodeAndVnodeList,
                                   boolean hasSimplified) {
        List<ModelNode> startNodes = modelNodeList.stream().filter(item ->
                "node,vnode,connect,end".contains(item.getNodeType())).collect(Collectors.toList());
        if (startNodes.size()==0) return hasSimplified;

        for (ModelNode startNode : startNodes) {
            if (startNode.getInLineNum()!=1) continue;

            List<ModelNode> result = new ArrayList<>();
            if (!"end".equals(startNode.getNodeType())) result.add(startNode);
            seekPathSeries(modelNodeList, modelLineList, startNode, result);
            if (result.size()<2) continue;

            ModelNode endNode = result.get(result.size()-1);
            if ("start,switch,vote".contains(endNode.getNodeType()) || endNode.getOutLineNum()!=1) {
                result.remove(endNode);
            }
            List<ModelNode> seriesNodes = result.stream().filter(item ->
                    !"connect".equals(item.getNodeType())).collect(Collectors.toList());
            if (seriesNodes.size()<2) continue;

            // 替换成虚节点
            replaceToVnodeSeries(modelId, modelNodeList, modelLineList,
                    algorithmList, modelNodeAndVnodeList, result, seriesNodes);
            hasSimplified = true;
        }

        return hasSimplified;
    }

    private void replaceToVnodeSeries(Long modelId,
                                      List<ModelNode> modelNodeList,
                                      List<ModelLine> modelLineList,
                                      List<Algorithm> algorithmList,
                                      List<ModelNode> modelNodeAndVnodeList,
                                      List<ModelNode> path,
                                      List<ModelNode> seriesNodes) {
        // 新增algorithm
        Algorithm algorithm = new Algorithm();
        Long id = UUIDUtil.generateId();
        algorithm.setId(id);
        algorithm.setModelId(modelId);
        algorithm.setComputerId(id);
        algorithm.setModelType("series");
        algorithm.setAlgorithmType("series");
        algorithm.setComputerList(joinNodeId(seriesNodes, ","));
        algorithm.setObjectList(joinNodeName(seriesNodes, ","));
        algorithm.setStep(algorithmList.size());
        algorithmList.add(algorithm);

        // 新增虚节点
        ModelNode vnode = new ModelNode();
        vnode.setId(id);
        vnode.setPicId(id.toString());
        vnode.setModelId(modelId);
        vnode.setNodeType("vnode");
        vnode.setName("v"+algorithm.getStep());
        modelNodeList.add(vnode);
        modelNodeAndVnodeList.add(vnode);

        // 将path替换为该虚节点
        for (int i=0; i<path.size(); i++) {
            ModelNode finalNode = path.get(i);
            if (i==0) {
                // 将该节点的出口线改为连接到虚节点
                List<ModelLine> outLines = modelLineList.stream().filter(item ->
                        item.getBeginCell().equals(finalNode.getPicId())).collect(Collectors.toList());
                for (ModelLine line : outLines) {
                    line.setBeginCell(vnode.getPicId());
                }
                // 将该节点的入口线删除
                List<ModelLine> inLines = modelLineList.stream().filter(item ->
                        item.getEndCell().equals(finalNode.getPicId())).collect(Collectors.toList());
                modelLineList.removeAll(inLines);
            }
            if (i==path.size()-1) {
                // 将该节点的入口线改为连接到虚节点
                List<ModelLine> inLines = modelLineList.stream().filter(item ->
                        item.getEndCell().equals(finalNode.getPicId())).collect(Collectors.toList());
                for (ModelLine line : inLines) {
                    line.setEndCell(vnode.getPicId());
                }
                // 将该节点的出口线删除
                List<ModelLine> outLines = modelLineList.stream().filter(item ->
                        item.getBeginCell().equals(finalNode.getPicId())).collect(Collectors.toList());
                modelLineList.removeAll(outLines);
            }
            // 删除该节点的出入口线
            List<ModelLine> inOutLines = modelLineList.stream().filter(item ->
                    item.getEndCell().equals(finalNode.getPicId()) || item.getBeginCell().equals(finalNode.getPicId())
            ).collect(Collectors.toList());
            modelLineList.removeAll(inOutLines);
            // 删除该节点
            modelNodeList.remove(finalNode);
            calcInOutLineNum(finalNode, modelLineList);
        }

        calcInOutLineNum(vnode, modelLineList);
    }

    private void seekPathSeries(List<ModelNode> modelNodeList,
                                List<ModelLine> modelLineList,
                                ModelNode startNode,
                                List<ModelNode> result) {
        ModelLine inLine = modelLineList.stream().filter(item ->
                item.getEndCell().equals(startNode.getPicId())).collect(Collectors.toList()).get(0);
        ModelNode pathNode = modelNodeList.stream().filter(item ->
                inLine.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        result.add(pathNode);
        if (pathNode.getOutLineNum()!=1 || pathNode.getInLineNum()!=1) return;
        if ("switch,vote".contains(pathNode.getNodeType())) return;
        seekPathSeries(modelNodeList, modelLineList, pathNode, result);
    }

    private boolean simplifyParallel(Long modelId,
                                     List<ModelNode> modelNodeList,
                                     List<ModelLine> modelLineList,
                                     List<Algorithm> algorithmList,
                                     List<ModelNode> modelNodeAndVnodeList,
                                     boolean hasSimplified) {
        boolean hasSimplifiedMe = false;
        List<ModelNode> startNodes = modelNodeList.stream().filter(item ->
                "node,vnode,connect,end".contains(item.getNodeType())).collect(Collectors.toList());
        if (startNodes.size()==0) return hasSimplified;

        for (ModelNode startNode : startNodes) {
            if (startNode.getInLineNum()<2) continue;
            List<ModelLine> inLines = modelLineList.stream().filter(item ->
                    item.getEndCell().equals(startNode.getPicId())).collect(Collectors.toList());
            hasSimplifiedMe = simplifyParallelGroup(modelId, modelNodeList, modelLineList,
                    algorithmList, modelNodeAndVnodeList, startNode, inLines);
            if (hasSimplifiedMe) {
                hasSimplified = true;
            }
        }

        return hasSimplified;
    }

    private boolean simplifyParallelGroup(Long modelId,
                                        List<ModelNode> modelNodeList,
                                        List<ModelLine> modelLineList,
                                        List<Algorithm> algorithmList,
                                        List<ModelNode> modelNodeAndVnodeList,
                                        ModelNode startNode,
                                        List<ModelLine> lines) {
        boolean hasSimplified = false;
        List<List<ModelNode>> pathList = new ArrayList<>();
        for (ModelLine line : lines) {
            List<ModelNode> path = getOneBranchParallel(modelNodeList, modelLineList, line);
            if (path.size() > 0) pathList.add(path);
        }
        Map<ModelNode, List<List<ModelNode>>> endNodePathsMap = groupingPathByEndNode(pathList);
        for (Map.Entry<ModelNode, List<List<ModelNode>>> entry : endNodePathsMap.entrySet()) {
            List<List<ModelNode>> pathOneGroup = entry.getValue();
            if (pathOneGroup.size()>1) {
                List<ModelNode> branchNodeList = new ArrayList<>();
                ModelNode endNode = getBranchNodesOneParallel(pathOneGroup, branchNodeList);
                if ("connect".equals(startNode.getNodeType()) && pathOneGroup.size()==lines.size()) {
                    // 替换成虚节点
                    replaceToVnode("parallel", modelId, modelNodeList, modelLineList,
                            algorithmList, startNode, endNode, branchNodeList);
                } else {
                    // 新增虚节点
                    ModelNode vnode = new ModelNode();
                    Long id = UUIDUtil.generateId();
                    vnode.setId(id);
                    vnode.setPicId(id.toString());
                    vnode.setModelId(modelId);
                    vnode.setNodeType("vnode");
                    modelNodeList.add(vnode);
                    modelNodeAndVnodeList.add(vnode);
                    ModelLine modelLineNew = new ModelLine();
                    Long picId2 = UUIDUtil.generateId();
                    modelLineNew.setId(picId2);
                    modelLineNew.setPicId(picId2.toString());
                    modelLineNew.setModelId(modelId);
                    modelLineNew.setBeginCell(vnode.getPicId());
                    modelLineNew.setEndCell(startNode.getPicId());
                    modelLineList.add(modelLineNew);
                    replaceToVnode("parallel", modelId, modelNodeList, modelLineList,
                            algorithmList, vnode, endNode, branchNodeList);
                    calcInOutLineNum(startNode, modelLineList);
                }
                hasSimplified = true;
            }
        }

        return hasSimplified;
    }

    private List<ModelNode> getOneBranchParallel(List<ModelNode> modelNodeList,
                                                 List<ModelLine> modelLineList,
                                                 ModelLine line) {
        List<ModelNode> path = new ArrayList<>();
        ModelNode branchNode = modelNodeList.stream().filter(item ->
                line.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        List<ModelLine> inLines = modelLineList.stream().filter(item ->
                item.getEndCell().equals(branchNode.getPicId())).collect(Collectors.toList());
        List<ModelLine> outLines = modelLineList.stream().filter(item ->
                item.getBeginCell().equals(branchNode.getPicId())).collect(Collectors.toList());
        if (inLines.size()!=1 || outLines.size()!=1) return path;
        ModelLine lineToBranchNode = inLines.get(0);
        ModelNode endNode = modelNodeList.stream().filter(item ->
                lineToBranchNode.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        path.add(branchNode);
        path.add(endNode);

        return path;
    }

    private Map<ModelNode, List<List<ModelNode>>> groupingPathByEndNode(List<List<ModelNode>> pathList) {
        Map<ModelNode, List<List<ModelNode>>> endNodePathsMap = new HashMap<>();
        for (List<ModelNode> path : pathList) {
            ModelNode endNode = path.get(path.size()-1);
            if (endNodePathsMap.containsKey(endNode)) {
                endNodePathsMap.get(endNode).add(path);
            } else {
                List<List<ModelNode>> paths = new ArrayList<>();
                paths.add(path);
                endNodePathsMap.put(endNode, paths);
            }
        }
        return endNodePathsMap;
    }

    private ModelNode getBranchNodesOneParallel(List<List<ModelNode>> paths,
                                           List<ModelNode> branchNodeList) {
        ModelNode endNode = null;
        for (List<ModelNode> path : paths) {
            branchNodeList.add(path.get(0));
            endNode = path.get(path.size()-1);
        }
        return endNode;
    }

    private boolean simplifyBridge(Long modelId,
                                   List<ModelNode> modelNodeList,
                                   List<ModelLine> modelLineList,
                                   List<Algorithm> algorithmList,
                                   List<ModelNode> modelNodeAndVnodeList,
                                   boolean hasSimplified) {
        boolean hasSimplifiedMe = false;
        List<ModelNode> startNodes = modelNodeList.stream().filter(item ->
                "node,vnode,connect,end".contains(item.getNodeType())).collect(Collectors.toList());
        if (startNodes.size()==0) return hasSimplified;

        for (ModelNode startNode : startNodes) {
            List<ModelLine> lines = modelLineList.stream().filter(item ->
                    item.getEndCell().equals(startNode.getPicId())).collect(Collectors.toList());
            if (lines.size()<2) continue;
            List<ModelLinePair> linePairs = getLinePairs(lines);
            for (ModelLinePair linePair : linePairs) {
                hasSimplifiedMe = simplifyBridgeOneLinePair(modelId, modelNodeList, modelLineList,
                        algorithmList, modelNodeAndVnodeList, startNode, linePair);
                if (hasSimplifiedMe) {
                    hasSimplified = true;
                    break;
                }
            }
        }

        return hasSimplified;
    }

    private boolean simplifyBridgeOneLinePair(Long modelId,
                                              List<ModelNode> modelNodeList,
                                              List<ModelLine> modelLineList,
                                              List<Algorithm> algorithmList,
                                              List<ModelNode> modelNodeAndVnodeList,
                                              ModelNode startNode,
                                              ModelLinePair linePair) {
        ModelNode node1 = null;
        ModelNode node2 = null;
        ModelNode node3 = null;
        ModelNode node4 = null;
        ModelNode node5 = null;
        ModelNode nodeTmp1 = modelNodeList.stream().filter(item ->
                linePair.getLine1().getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        ModelNode nodeTmp2 = modelNodeList.stream().filter(item ->
                linePair.getLine2().getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        calcInOutLineNum(nodeTmp1, modelLineList);
        calcInOutLineNum(nodeTmp2, modelLineList);
        if (nodeTmp1.getOutLineNum()!=1 || nodeTmp2.getOutLineNum()!=1) return false;
        if (nodeTmp1.getInLineNum()<1 || nodeTmp1.getInLineNum()>2) return false;
        if (nodeTmp2.getInLineNum()<1 || nodeTmp2.getInLineNum()>2) return false;
        if ((nodeTmp1.getInLineNum() + nodeTmp2.getInLineNum())!=3) return false;
        if (nodeTmp1.getInLineNum()==1) {
            node2 = nodeTmp1;
            node5 = nodeTmp2;
        } else {
            node2 = nodeTmp2;
            node5 = nodeTmp1;
        }
        ModelNode finalNode = node2;
        ModelLine line1To2 = modelLineList.stream().filter(item ->
                item.getEndCell().equals(finalNode.getPicId())).collect(Collectors.toList()).get(0);
        node1 = modelNodeList.stream().filter(item ->
                line1To2.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        if (node1.getInLineNum()!=1 || node1.getOutLineNum()!=2) return false;
        ModelNode finalNode1 = node1;
        List<ModelLine> outLinesFrom1 = modelLineList.stream().filter(item ->
                item.getBeginCell().equals(finalNode1.getPicId())).collect(Collectors.toList());
        if (outLinesFrom1.get(0).getEndCell().equals(node2.getPicId())) {
            node3 = modelNodeList.stream().filter(item ->
                    outLinesFrom1.get(1).getEndCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        } else {
            node3 = modelNodeList.stream().filter(item ->
                    outLinesFrom1.get(0).getEndCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        }
        if (node3.getId().equals(node5.getId())) return false;
        if (node3.getInLineNum()!=1 || node3.getOutLineNum()!=1) return false;
        ModelNode finalNode2 = node3;
        ModelLine outLineFrom3 = modelLineList.stream().filter(item ->
                item.getBeginCell().equals(finalNode2.getPicId())).collect(Collectors.toList()).get(0);
        if (!outLineFrom3.getEndCell().equals(node5.getPicId())) return false;
        ModelNode finalNode3 = node5;
        List<ModelLine> inLinesTo5 = modelLineList.stream().filter(item ->
                item.getEndCell().equals(finalNode3.getPicId())).collect(Collectors.toList());
        if (inLinesTo5.get(0).getBeginCell().equals(node3.getPicId())) {
            node4 = modelNodeList.stream().filter(item ->
                    inLinesTo5.get(1).getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        } else {
            node4 = modelNodeList.stream().filter(item ->
                    inLinesTo5.get(0).getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        }
        if (node4.getId().equals(node1.getId())) return false;
        if (node4.getId().equals(node2.getId())) return false;
        if (node4.getInLineNum()!=1 || node4.getOutLineNum()!=1) return false;
        ModelNode finalNode4 = node1;
        ModelLine lineTo1 = modelLineList.stream().filter(item ->
                item.getEndCell().equals(finalNode4.getPicId())).collect(Collectors.toList()).get(0);
        ModelNode finalNode5 = node4;
        ModelLine lineTo4 = modelLineList.stream().filter(item ->
                item.getEndCell().equals(finalNode5.getPicId())).collect(Collectors.toList()).get(0);
        nodeTmp1 = modelNodeList.stream().filter(item ->
                lineTo1.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        nodeTmp2 = modelNodeList.stream().filter(item ->
                lineTo4.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        if (!nodeTmp1.getId().equals(nodeTmp2.getId())) return false;
        ModelNode endNode = nodeTmp1;
        List<ModelNode> branchNodeList = new ArrayList<>();
        branchNodeList.add(node1);
        branchNodeList.add(node2);
        branchNodeList.add(node3);
        branchNodeList.add(node4);
        branchNodeList.add(node5);

        if ("connect".contains(startNode.getNodeType()) && startNode.getInLineNum()==2) {
            // 替换成虚节点
            replaceToVnode("bridge", modelId, modelNodeList, modelLineList,
                    algorithmList, startNode, endNode, branchNodeList);
        } else {
            // 新增虚节点
            ModelNode vnode = new ModelNode();
            Long id = UUIDUtil.generateId();
            vnode.setId(id);
            vnode.setPicId(id.toString());
            vnode.setModelId(modelId);
            vnode.setNodeType("vnode");
            modelNodeList.add(vnode);
            modelNodeAndVnodeList.add(vnode);
            ModelLine modelLineNew = new ModelLine();
            Long picId2 = UUIDUtil.generateId();
            modelLineNew.setId(picId2);
            modelLineNew.setPicId(picId2.toString());
            modelLineNew.setModelId(modelId);
            modelLineNew.setBeginCell(vnode.getPicId());
            modelLineNew.setEndCell(startNode.getPicId());
            modelLineList.add(modelLineNew);
            replaceToVnode("bridge", modelId, modelNodeList, modelLineList,
                    algorithmList, vnode, endNode, branchNodeList);
            calcInOutLineNum(startNode, modelLineList);
        }

        return true;
    }

    private void calcInOutLineNumAllNode(List<ModelNode> modelNodeList, List<ModelLine> modelLineList) {
        for (ModelNode node : modelNodeList) {
            calcInOutLineNum(node, modelLineList);
        }
    }

    private void calcInOutLineNum(ModelNode node, List<ModelLine> modelLineList) {
        List<ModelLine> inLines = modelLineList.stream().filter(item ->
                item.getEndCell().equals(node.getPicId())).collect(Collectors.toList());
        List<ModelLine> outLines = modelLineList.stream().filter(item ->
                item.getBeginCell().equals(node.getPicId())).collect(Collectors.toList());
        node.setInLineNum(inLines.size());
        node.setOutLineNum(outLines.size());
    }

    // 找出所有2根线的组合
    private List<ModelLinePair> getLinePairs(List<ModelLine> lines) {
        List<ModelLinePair> linePairs = new ArrayList<>();
        for (int i=0; i<lines.size()-1; i++) {
            for (int j=i+1; j<lines.size(); j++) {
                ModelLinePair linePair = new ModelLinePair();
                linePair.setLine1(lines.get(i));
                linePair.setLine2(lines.get(j));
                linePairs.add(linePair);
            }
        }
        return linePairs;
    }

    private boolean simplifyOperator(String operator,
                                     Long modelId,
                                     List<ModelNode> modelNodeList,
                                     List<ModelLine> modelLineList,
                                     List<Algorithm> algorithmList,
                                     boolean hasSimplified) {
        List<ModelNode> opNodes = modelNodeList.stream().filter(item ->
                operator.equals(item.getNodeType())).collect(Collectors.toList());
        if (opNodes.size()==0) return hasSimplified;

        for (ModelNode opNode : opNodes) {
            List<ModelLine> lines = modelLineList.stream().filter(item ->
                    item.getEndCell().equals(opNode.getPicId())).collect(Collectors.toList());
            boolean thisNodeSuccess = true;
            ModelNode endNode = null;
            List<ModelNode> branchNodeList = new ArrayList<>();
            for (ModelLine line : lines) {
                ModelNode curEndNode = handleOneBranch(modelNodeList, modelLineList, line, branchNodeList);
                if (curEndNode == null) {
                    thisNodeSuccess = false;
                    break;
                }
                if (endNode == null) {
                    endNode = curEndNode;
                } else {
                    if (!endNode.getId().equals(curEndNode.getId())) {
                        thisNodeSuccess = false;
                        break;
                    }
                }
            }
            if (thisNodeSuccess) {
                replaceToVnode(opNode.getNodeType(), modelId, modelNodeList, modelLineList,
                        algorithmList, opNode, endNode, branchNodeList);
                hasSimplified = true;
            }
        }

        return hasSimplified;
    }

    private void replaceToVnode(String type,
                                Long modelId,
                                List<ModelNode> modelNodeList,
                                List<ModelLine> modelLineList,
                                List<Algorithm> algorithmList,
                                ModelNode startNode,
                                ModelNode endNode,
                                List<ModelNode> branchNodeList) {
        // 新增algorithm
        Algorithm algorithm = new Algorithm();
        Long id = UUIDUtil.generateId();
        algorithm.setId(id);
        algorithm.setModelId(modelId);
        algorithm.setComputerId(id);
        algorithm.setModelType(type);
        algorithm.setAlgorithmType(type);
        algorithm.setComputerList(joinNodeId(branchNodeList, ","));
        algorithm.setObjectList(joinNodeName(branchNodeList, ","));
        algorithm.setStep(algorithmList.size());
        algorithmList.add(algorithm);

        // 替换为虚节点
        for (ModelNode node : branchNodeList) {
            List<ModelLine> branchNodeLineList = modelLineList.stream().filter(item ->
                    item.getEndCell().equals(node.getPicId()) || item.getBeginCell().equals(node.getPicId())
            ).collect(Collectors.toList());
            modelLineList.removeAll(branchNodeLineList);
            modelNodeList.remove(node);
            calcInOutLineNum(node, modelLineList);
        }
        startNode.setId(id);
        startNode.setNodeType("vnode");
        startNode.setName("v"+algorithm.getStep());

        ModelLine modelLineNew = new ModelLine();
        Long picId2 = UUIDUtil.generateId();
        modelLineNew.setId(picId2);
        modelLineNew.setPicId(picId2.toString());
        modelLineNew.setModelId(modelId);
        modelLineNew.setBeginCell(endNode.getPicId());
        modelLineNew.setEndCell(startNode.getPicId());
        modelLineList.add(modelLineNew);

        calcInOutLineNum(startNode, modelLineList);
        calcInOutLineNum(endNode, modelLineList);
    }

    private ModelNode handleOneBranch(List<ModelNode> modelNodeList,
                                      List<ModelLine> modelLineList,
                                      ModelLine line,
                                      List<ModelNode> branchNodeList
                                      ) {
        ModelNode branchNode = modelNodeList.stream().filter(item ->
                line.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);
        List<ModelLine> inLines = modelLineList.stream().filter(item ->
                item.getEndCell().equals(branchNode.getPicId())).collect(Collectors.toList());
        List<ModelLine> outLines = modelLineList.stream().filter(item ->
                item.getBeginCell().equals(branchNode.getPicId())).collect(Collectors.toList());
        if (inLines.size()!=1 || outLines.size()!=1) return null;
        ModelLine lineToBranchNode = inLines.get(0);
        ModelNode endNode = modelNodeList.stream().filter(item ->
                lineToBranchNode.getBeginCell().equals(item.getPicId())).collect(Collectors.toList()).get(0);

        branchNodeList.add(branchNode);
        return endNode;
    }

    private void getNodeAndLineFromRbd(Long modelId,
                                       JSONArray rbdJsonArray,
                                       List<ModelNode> modelNodeList,
                                       List<ModelLine> modelLineList) {
        for (int i = 0; i < rbdJsonArray.size(); i++) {
            JSONObject jsonObject = rbdJsonArray.getJSONObject(i);
            String shape = jsonObject.get("shape").toString();
            if ("edge".equals(shape)) {
                ModelLine modelLine = new ModelLine();
                modelLine.setId(UUIDUtil.generateId());
                modelLine.setModelId(modelId);
                modelLine.setPicId(jsonObject.get("id").toString());
                modelLine.setBeginCell(JsonUtils2.getJsonValueByPath(jsonObject, "source/cell".split("/")).toString());
                modelLine.setEndCell(JsonUtils2.getJsonValueByPath(jsonObject, "target/cell".split("/")).toString());
                modelLineList.add(modelLine);
            } else if ("image".equals(shape)){
                ModelNode modelNode = new ModelNode();
                modelNode.setId(UUIDUtil.generateId());
                modelNode.setModelId(modelId);
                modelNode.setPicId(jsonObject.get("id").toString());
                modelNode.setNodeType(JsonUtils2.getJsonValueByPath(jsonObject, "data/nodeType".split("/")).toString());
                if ("node".equals(modelNode.getNodeType())) {
                    modelNode.setDataId(Long.valueOf(JsonUtils2.getJsonValueByPath(jsonObject, "data/dataId".split("/")).toString()));
//                    modelNode.setNodeTypeExt(JsonUtils2.getJsonValueByPath(jsonObject, "data/nodeTypeExt".split("/")).toString());
                    Object label = JsonUtils2.getJsonValueByPath(jsonObject, "attrs/label/textWrap/text".split("/"));
                    modelNode.setName(label==null ? "" : label.toString());
                }
                modelNodeList.add(modelNode);
            }
        }
    }

    private void analyzeRbdAndSave(Long modelId, String content, boolean saveFlag) {
        String diagramJsonStr = content;
//        String diagramJsonStr = 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lity\":\"hidden\"}}}},\"left\":{\"position\":\"left\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}}},\"items\":[{\"group\":\"top\",\"id\":\"223c9b3a-6baa-4bb8-99ba-c3300db9a942\"},{\"group\":\"right\",\"id\":\"2806bc8a-4e11-4657-9af9-089907985671\"},{\"group\":\"bottom\",\"id\":\"c56eed35-95fa-4e3c-adba-9847ef705e1c\"},{\"group\":\"left\",\"id\":\"61eaafd2-095b-41d6-8e34-862fb470b7a6\"}]},\"zIndex\":6},{\"position\":{\"x\":-350,\"y\":-54},\"size\":{\"width\":60,\"height\":60},\"attrs\":{\"text\":{\"refY\":\"100%\",\"textVerticalAnchor\":\"top\",\"text\":\"logo\",\"style\":{\"color\":\"#080808\"},\"refY2\":4},\"image\":{\"xlink:href\":\"dist/img/logo.36cbc06d.png\"},\"body\":{\"stroke\":\"#5F95FF\"}},\"visible\":true,\"shape\":\"image\",\"id\":\"2b6df966-4e19-4055-bb13-c4c083b18e58\",\"data\":{\"dataId\":\"123456\",\"nodeType\":\"node\",\"nodeTypeExt\":\"aaa\"},\"ports\":{\"groups\":{\"top\":{\"position\":\"top\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"right\":{\"position\":\"right\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"bottom\":{\"position\":\"bottom\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"left\":{\"position\":\"left\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}}},\"items\":[{\"group\":\"top\",\"id\":\"bc0336ec-7912-4720-aea7-e5869de77692\"},{\"group\":\"right\",\"id\":\"a977d555-b8c8-4578-9a8b-3097c405c1a8\"},{\"group\":\"bottom\",\"id\":\"fef0f533-9581-4831-ba65-427f097a3d17\"},{\"group\":\"left\",\"id\":\"01eb49d9-4b1c-466f-8263-935542436c7e\"}]},\"zIndex\":7},{\"position\":{\"x\":-330,\"y\":40},\"size\":{\"width\":60,\"height\":60},\"attrs\":{\"text\":{\"refY\":\"100%\",\"textVerticalAnchor\":\"top\",\"text\":\"logo\",\"style\":{\"color\":\"#080808\"},\"refY2\":4},\"image\":{\"xlink:href\":\"dist/img/logo.36cbc06d.png\"},\"body\":{\"stroke\":\"#5F95FF\"}},\"visible\":true,\"shape\":\"image\",\"id\":\"323f5abe-05ed-419d-9d81-d25c7d3b19f3\",\"data\":{\"dataId\":\"123456\",\"nodeType\":\"node\",\"nodeTypeExt\":\"aaa\"},\"ports\":{\"groups\":{\"top\":{\"position\":\"top\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"right\":{\"position\":\"right\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"bottom\":{\"position\":\"bottom\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"left\":{\"position\":\"left\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}}},\"items\":[{\"group\":\"top\",\"id\":\"bc0336ec-7912-4720-aea7-e5869de77692\"},{\"group\":\"right\",\"id\":\"a977d555-b8c8-4578-9a8b-3097c405c1a8\"},{\"group\":\"bottom\",\"id\":\"fef0f533-9581-4831-ba65-427f097a3d17\"},{\"group\":\"left\",\"id\":\"01eb49d9-4b1c-466f-8263-935542436c7e\"}]},\"zIndex\":8},{\"position\":{\"x\":-153,\"y\":-20},\"size\":{\"width\":60,\"height\":60},\"attrs\":{\"text\":{\"refY\":\"100%\",\"textVerticalAnchor\":\"top\",\"text\":\"logo\",\"style\":{\"color\":\"#080808\"},\"refY2\":4},\"image\":{\"xlink:href\":\"dist/img/logo.36cbc06d.png\"},\"body\":{\"stroke\":\"#5F95FF\"},\"line\":{\"stroke\":\"orange\"}},\"visible\":true,\"shape\":\"image\",\"id\":\"1f378f5e-066d-49bb-a6cc-de24a8882d65\",\"data\":{\"dataId\":\"123456\",\"nodeType\":\"node\",\"nodeTypeExt\":\"aaa\"},\"ports\":{\"groups\":{\"top\":{\"position\":\"top\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"right\":{\"position\":\"right\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"bottom\":{\"position\":\"bottom\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}},\"left\":{\"position\":\"left\",\"attrs\":{\"circle\":{\"r\":4,\"magnet\":true,\"stroke\":\"#5F95FF\",\"strokeWidth\":1,\"fill\":\"#fff\",\"style\":{\"visibility\":\"hidden\"}}}}},\"items\":[{\"group\":\"top\",\"id\":\"bc0336ec-7912-4720-aea7-e5869de77692\"},{\"group\":\"right\",\"id\":\"a977d555-b8c8-4578-9a8b-3097c405c1a8\"},{\"group\":\"bottom\",\"id\":\"fef0f533-9581-4831-ba65-427f097a3d17\"},{\"group\":\"left\",\"id\":\"01eb49d9-4b1c-466f-8263-935542436c7e\"}]},\"zIndex\":9,\"labels\":[{\"attrs\":{\"body\":{\"stroke\":\"orange\"}}}]}]}";

        JSONObject diagramJson = new JSONObject(diagramJsonStr);
        JSONArray diagramJsonArray = diagramJson.getJSONArray("cells");
        if (diagramJsonArray == null) return;

        List<ModelLine> modelLineList = new ArrayList<>();
        List<ModelNode> modelNodeList = new ArrayList<>();
        // 1. 解析出节点与边
        for (int i = 0; i < diagramJsonArray.size(); i++) {
            JSONObject jsonObject = diagramJsonArray.getJSONObject(i);
            String shape = jsonObject.get("shape").toString();
            if (shape.equals("edge")) {
                ModelLine modelLine = new ModelLine();
                modelLine.setId(UUIDUtil.generateId());
                modelLine.setPicId(jsonObject.get("id").toString());
                modelLine.setModelId(modelId);
                modelLine.setBeginCell(JsonUtils2.getJsonValueByPath(jsonObject, "source/cell".split("/")).toString());
                modelLine.setEndCell(JsonUtils2.getJsonValueByPath(jsonObject, "target/cell".split("/")).toString());
                modelLineList.add(modelLine);
            } else if (shape.equals("image")){
                ModelNode modelNode = new ModelNode();
                modelNode.setId(UUIDUtil.generateId());
                modelNode.setPicId(jsonObject.get("id").toString());
                modelNode.setModelId(modelId);
                modelNode.setNodeType(JsonUtils2.getJsonValueByPath(jsonObject, "data/nodeType".split("/")).toString());
                if ("node".equals(modelNode.getNodeType())) {
                    modelNode.setDataId(Long.valueOf(JsonUtils2.getJsonValueByPath(jsonObject, "data/dataId".split("/")).toString()));
                    modelNode.setNodeTypeExt(JsonUtils2.getJsonValueByPath(jsonObject, "data/nodeTypeExt".split("/")).toString());
                    modelNode.setName(JsonUtils2.getJsonValueByPath(jsonObject, "attrs/label/textWrap/text".split("/")).toString());
                }
                modelNodeList.add(modelNode);
            }
        }

        // 2. 对于有多根入口线的产品节点，将其上的表决、旁联、并联关系剥离成运算符节点，添加到该产品节点的前面，并添加相应的边
        List<ModelNode> nodesToAdd = new ArrayList<>();
        List<ModelLine> linesToAdd = new ArrayList<>();
        for (ModelNode modelNode: modelNodeList) {
            String picId = modelNode.getPicId();
            List<ModelLine> lineList = modelLineList.stream().filter(item->item.getEndCell().equals(picId)).collect(Collectors.toList());
            if (lineList.size()>1){
                if ("node,end".contains(modelNode.getNodeType())){
                    String nodeTypeExt = "";
                    if ("node".equals(modelNode.getNodeType())) {
                        nodeTypeExt = modelNode.getNodeTypeExt();
                    } else if ("end".equals(modelNode.getNodeType())) {
                        nodeTypeExt = "parallel";
                    }
                    if (StringUtils.isNotBlank(nodeTypeExt)){
                        ModelNode modelNodeNew =  new ModelNode();
                        Long nodeNewId = UUIDUtil.generateId();
                        modelNodeNew.setId(nodeNewId);
                        modelNodeNew.setPicId(nodeNewId.toString());
                        modelNodeNew.setModelId(modelId);
                        modelNodeNew.setNodeType(nodeTypeExt);
                        nodesToAdd.add(modelNodeNew);

                        ModelLine modelLineNew = new ModelLine();
                        Long lineNewId = UUIDUtil.generateId();
                        modelLineNew.setId(lineNewId);
                        modelLineNew.setPicId(lineNewId.toString());
                        modelLineNew.setModelId(modelId);
                        modelLineNew.setBeginCell(nodeNewId.toString());
                        modelLineNew.setEndCell(modelNode.getPicId());
                        linesToAdd.add(modelLineNew);

                        for(ModelLine nodelLine: lineList){
                            nodelLine.setEndCell(nodeNewId.toString());
                        }
                    }
                }
            }
        }
        modelNodeList.addAll(nodesToAdd);
        modelLineList.addAll(linesToAdd);

        // 3. 将最基本的串、并、旁联、表决替换为虚节点，不断简化图形，直至无法简化为止
        List<Algorithm> algoList = new ArrayList<>();
        boolean hasLeastOne = false;
        int stepNo = 0;
        do {
            List<ModelNode> opNodeList = modelNodeList.stream().filter(item ->
                    "parallel,switch,vote,end".contains(item.getNodeType())).collect(Collectors.toList());
            if (opNodeList.size() <= 0) break;

            hasLeastOne = false; // 至少能简化1个图形
            for (ModelNode opNode: opNodeList) {
                // 右边运算符循环
                List<ModelLine> lineToOpNodeList = modelLineList.stream().filter(item ->
                        item.getEndCell().equals(opNode.getPicId())).collect(Collectors.toList());
                List<List<ModelNode>> listPath = new ArrayList<>();
                ModelNode lastNode = null;
                boolean thisNodeSucc= true;
                for (ModelLine modelLine: lineToOpNodeList) {
                    // 右边运算符的逐个路径循环
                    List<ModelNode> result = new ArrayList<>();
                    handleOneLine(modelLineList, modelNodeList, modelLine, result);
                    listPath.add(result);
                    ModelNode curLastNode = result.get(result.size()-1);
                    if (lastNode == null) {
                        lastNode = curLastNode;
                    } else {
                        if (!lastNode.getId().equals(curLastNode.getId())){
                            thisNodeSucc = false;
                            break;
                        }
                    }
                }
                if (thisNodeSucc) {
                    //形成虚节点算法
                    stepNo = replaceToVNode(modelId, modelNodeList, modelLineList, opNode, listPath, lastNode, algoList, stepNo);
                    hasLeastOne = true;
                }
            } // end for
        } while (hasLeastOne);

        if (saveFlag) saveModel(modelId, modelNodeList, modelLineList, algoList);
    }

    private void handleOneLine(List<ModelLine> modelLineList,
                               List<ModelNode> modelNodeList,
                               ModelLine modelLine,
                               List<ModelNode> result) {
        ModelNode modelNode = modelNodeList.stream().filter(item ->
                item.getPicId().equals(modelLine.getBeginCell())).collect(Collectors.toList()).get(0);
        result.add(modelNode);
        if ("start".equals(modelNode.getNodeType())) {
            return;
        }
        List<ModelLine> lines =modelLineList.stream().filter(item ->
                item.getBeginCell().equals(modelNode.getPicId())).collect(Collectors.toList());
        List<ModelLine> lines2 =modelLineList.stream().filter(item ->
                item.getEndCell().equals(modelNode.getPicId())).collect(Collectors.toList());
        if (lines.size()>1 || lines2.size()>1) {
            return;
        } else {
            handleOneLine(modelLineList, modelNodeList, lines2.get(0), result);
        }
    }

    private int replaceToVNode(Long modelId,
                                List<ModelNode> modelNodeList,
                                List<ModelLine> modelLineList,
                                ModelNode opNode,
                                List<List<ModelNode>> listPath,
                                ModelNode lastNode,
                                List<Algorithm> algoList,
                                int stepNo) {
        String computerList = "";
        String objectList = "";
        for (List<ModelNode> path : listPath) {
            path.remove(path.get(path.size()-1));
            Long id = null;
            String name = "";
            if (path.size()==0) {
                return stepNo;
            } else if (path.size()==1) {
                if ("end".equals(opNode.getNodeType()) && !"start".equals(lastNode.getNodeType())) return stepNo;
                id = path.get(path.size()-1).getId();
                name = path.get(path.size()-1).getName();
            } else {
                id = UUIDUtil.generateId();
                name = id.toString();
                Algorithm algo = new Algorithm();
                algo.setId(id);
                algo.setModelId(modelId);
                algo.setComputerId(id);
                algo.setModelType("series");
                algo.setAlgorithmType("series");
                algo.setComputerList(joinNodeId(path, ","));
                algo.setObjectList(joinNodeName(path, ","));
                algo.setStep(stepNo);
                stepNo++;
                algoList.add(algo);
                name = "v"+ algo.getStep();
            }
            computerList = computerList.equals("") ? id.toString() : computerList + "," + id.toString();
            objectList = objectList.equals("") ? name : objectList + "," + name;
            for (ModelNode node : path) {
                List<ModelLine> lineList4 = modelLineList.stream().filter(item ->
                        item.getEndCell().equals(node.getPicId()) || item.getBeginCell().equals(node.getPicId())).collect(Collectors.toList());
                modelLineList.removeAll(lineList4);
                modelNodeList.remove(node);
            }
        }
        Algorithm algo = new Algorithm();
        Long id = UUIDUtil.generateId();
        algo.setId(id);
        algo.setModelId(modelId);
        algo.setComputerId(id);
        algo.setModelType(opNode.getNodeType());
        algo.setAlgorithmType(opNode.getNodeType());
        algo.setComputerList(computerList);
        algo.setObjectList(objectList);
        algo.setStep(stepNo);
        stepNo++;
        algoList.add(algo);

        //将原运算节点改成虚节点
        opNode.setId(id);
        opNode.setNodeType("vnode");
        opNode.setName("v"+algo.getStep());

        ModelLine modelLineNew = new ModelLine();
        Long picId2 = UUIDUtil.generateId();
        modelLineNew.setId(picId2);
        modelLineNew.setPicId(picId2.toString());
        modelLineNew.setModelId(modelId);
        modelLineNew.setBeginCell(lastNode.getPicId());
        modelLineNew.setEndCell(opNode.getPicId());
        modelLineList.add(modelLineNew);

        return stepNo;
    }

    private String joinNodeId(List<ModelNode> nodeList, String sep) {
        String result = "";
        for (int i = 0; i < nodeList.size(); i++) {
            if (i > 0) result = result + sep;
            result = result + nodeList.get(i).getId().toString();
        }
        return result;
    }

    private String joinNodeName(List<ModelNode> nodeList, String sep) {
        String result = "";
        for (int i = 0; i < nodeList.size(); i++) {
            if (i > 0) result = result + sep;
            result = result + nodeList.get(i).getName();
        }
        return result;
    }

    private void saveModel(Long modelId,
                           List<ModelNode> modelNodeList,
                           List<ModelLine> modelLineList,
                           List<Algorithm> algoList) {
        // 删除既有数据
        modelNodeDao.deleteByModelId(modelId);
        modelLineDao.deleteByModelId(modelId);
        algorithmDao.deleteByModelId(modelId);

        // 插入数据
        for (ModelNode modelNode : modelNodeList) {
            modelNodeDao.insert(modelNode);
        }
        for (ModelLine modelLine : modelLineList) {
            modelLineDao.insert(modelLine);
        }
        for (Algorithm algorithm : algoList) {
            algorithmDao.insert(algorithm);
        }
    }

}