package org.jeecg.modules.dnc.service.support;

import org.jeecg.common.util.oConvertUtils;
import org.jeecg.modules.dnc.response.DepartmentModel;
import org.jeecg.modules.dnc.response.DepartmentTreeModel;
import org.jeecg.modules.dnc.ucenter.Department;

import java.util.ArrayList;
import java.util.List;

public class FindsDepartmentChildrenUtil {
    //部门树信息-树结构
    //private static List<DepartmentTreeModel> sysDepartTreeList = new ArrayList<DepartmentTreeModel>();

    //部门树id-树结构
    //private static List<DepartmentModel> idList = new ArrayList<>();


    /**
     * queryTreeList的子方法 ====1=====
     * 该方法是s将SysDepart类型的list集合转换成SysDepartTreeModel类型的集合
     */
    public static List<DepartmentTreeModel> wrapTreeDataToTreeList(List<Department> recordList) {
        // 在该方法每请求一次,都要对全局list集合进行一次清理
        //idList.clear();
        List<DepartmentModel> idList = new ArrayList<DepartmentModel>();
        List<DepartmentTreeModel> records = new ArrayList<>();
        for (int i = 0; i < recordList.size(); i++) {
            Department depart = recordList.get(i);
            records.add(new DepartmentTreeModel(depart));
        }
        List<DepartmentTreeModel> tree = findChildren(records, idList);
        setEmptyChildrenAsNull(tree);
        return tree;
    }

    /**
     * 获取 DepartmentModel
     * @param recordList
     * @return
     */
    public static List<DepartmentModel> wrapTreeDataToDepartIdTreeList(List<Department> recordList) {
        // 在该方法每请求一次,都要对全局list集合进行一次清理
        //idList.clear();
        List<DepartmentModel> idList = new ArrayList<DepartmentModel>();
        List<DepartmentTreeModel> records = new ArrayList<>();
        for (int i = 0; i < recordList.size(); i++) {
            Department depart = recordList.get(i);
            records.add(new DepartmentTreeModel(depart));
        }
        findChildren(records, idList);
        return idList;
    }

    /**
     * queryTreeList的子方法 ====2=====
     * 该方法是找到并封装顶级父类的节点到TreeList集合
     */
    private static List<DepartmentTreeModel> findChildren(List<DepartmentTreeModel> recordList,
                                                         List<DepartmentModel> departIdList) {

        List<DepartmentTreeModel> treeList = new ArrayList<>();
        for (int i = 0; i < recordList.size(); i++) {
            DepartmentTreeModel branch = recordList.get(i);
            if (oConvertUtils.isEmpty(branch.getParentId())) {
                treeList.add(branch);
                DepartmentModel DepartmentModel = new DepartmentModel().convert(branch);
                departIdList.add(DepartmentModel);
            }
        }
        getGrandChildren(treeList,recordList,departIdList);

        //idList = departIdList;
        return treeList;
    }

    /**
     * queryTreeList的子方法====3====
     *该方法是找到顶级父类下的所有子节点集合并封装到TreeList集合
     */
    private static void getGrandChildren(List<DepartmentTreeModel> treeList,List<DepartmentTreeModel> recordList,List<DepartmentModel> idList) {

        for (int i = 0; i < treeList.size(); i++) {
            DepartmentTreeModel model = treeList.get(i);
            DepartmentModel idModel = idList.get(i);
            for (int i1 = 0; i1 < recordList.size(); i1++) {
                DepartmentTreeModel m = recordList.get(i1);
                if (m.getParentId()!=null && m.getParentId().equals(model.getDepartId())) {
                    model.getChildren().add(m);
                    DepartmentModel dim = new DepartmentModel().convert(m);
                    idModel.getChildren().add(dim);
                }
            }
            getGrandChildren(treeList.get(i).getChildren(), recordList, idList.get(i).getChildren());
        }

    }


    /**
     * queryTreeList的子方法 ====4====
     * 该方法是将子节点为空的List集合设置为Null值
     */
    private static void setEmptyChildrenAsNull(List<DepartmentTreeModel> treeList) {

        for (int i = 0; i < treeList.size(); i++) {
            DepartmentTreeModel model = treeList.get(i);
            if (model.getChildren().size() == 0) {
                model.setChildren(null);
            }else{
                setEmptyChildrenAsNull(model.getChildren());
            }
        }
        // sysDepartTreeList = treeList;
    }
}