package com.farriver.bwf.service.question;

import com.farriver.bwf.common.model.ApiData;
import com.farriver.bwf.common.model.ApiPageData;
import com.farriver.bwf.common.options.ActionType;
import com.farriver.bwf.common.options.MapDataType;
import com.farriver.bwf.common.statics.LangConstants;
import com.farriver.bwf.common.utilities.ListUtils;
import com.farriver.bwf.data.master.mapper.QuestionCategoryMapper;
import com.farriver.bwf.data.master.model.QuestionCategory;
import com.farriver.bwf.data.master.model.QuestionCategoryExample;
import com.farriver.bwf.data.transferobject.queryobject.question.QuestionCategoryQueryObject;
import com.farriver.bwf.data.transferobject.viewmodel.question.QuestionCategoryViewModel;
import com.farriver.bwf.service.ServiceBase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.cache.annotation.CacheConfig;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import jakarta.annotation.Resource;
import java.util.*;
import java.util.stream.Collectors;

@Service
@CacheConfig(cacheNames = "bwf_QuestionCategory_cache")
public class QuestionCategoryService extends ServiceBase {
    private static final Logger logger = LoggerFactory.getLogger(QuestionCategoryService.class);

    @Resource
    QuestionCategoryMapper mapper;

    private String message;

    public Map<MapDataType, Object> GetList(QuestionCategoryQueryObject queryObject) {
        if (queryObject == null) return null;

        QuestionCategoryExample example = new QuestionCategoryExample();
        QuestionCategoryExample.Criteria criteria = example.createCriteria();

        //查询条件
        if (queryObject.getFilter() != null && !queryObject.getFilter().isEmpty()) {
            criteria.andNameLike("%" + queryObject.getFilter() + "%");
        } else {
            if (queryObject.getId() != null && !queryObject.getId().isEmpty()) {
                criteria.andIdEqualTo(queryObject.getId());
            }
            if (queryObject.getName() != null && !queryObject.getName().isEmpty()) {
                criteria.andNameLike("%" + queryObject.getName() + "%");
            }
            if (queryObject.getStatus() != null && queryObject.getStatus() >= 0) {
                criteria.andStatusEqualTo(queryObject.getStatus());
            }
            if (queryObject.getStatuslist() != null && queryObject.getStatuslist().size() > 0) {
                criteria.andStatusIn(queryObject.getStatuslist());
            }
            if (queryObject.getStartDateTime() != null && queryObject.getEndDateTime() != null) {
                criteria.andCreatetimeBetween(queryObject.getStartDateTime(), queryObject.getEndDateTime());
            }
        }

        //查询总数
        long total = mapper.countByExample(example);

        //分页
        int pageIndex = queryObject.getPageIndex();
        int pageSize = queryObject.getPageSize();
        if (pageIndex > 0 && pageSize > 0) {
            example.setRows(pageSize);
            example.setOffset((pageIndex - 1) * pageSize);
        }

        List<QuestionCategory> list = mapper.selectByExample(example);

        Map<MapDataType, Object> map = new HashMap<>();
        map.put(MapDataType.DATA_LIST, list);
        map.put(MapDataType.TOTAL_COUNT, total);
        map.put(MapDataType.PAGE_INDEX, pageIndex);
        map.put(MapDataType.PAGE_SIZE, pageSize);

        return map;
    }

    public QuestionCategory GetDetail(QuestionCategoryQueryObject queryObject) {
        Map<MapDataType, Object> map = GetList(queryObject);
        Object object = map.get(MapDataType.DATA_LIST);

        if (object != null) {
            List<QuestionCategory> list = (List<QuestionCategory>) object;
            if (list != null && list.size() == 1)
                return list.get(0);
        }

        return null;
    }

    @CacheEvict(allEntries = true)
    public ApiData Create(QuestionCategoryViewModel model) {
        QuestionCategory entity = Check(ActionType.CREATE, model);

        if (entity != null) {
            return ApiData.ok(LangConstants.MSG_INFO_SUCCESS, mapper.insertSelective(entity));
        } else {
            return ApiData.error(message);
        }
    }

    @CacheEvict(allEntries = true)
    public ApiData Update(QuestionCategoryViewModel model) {
        QuestionCategory entity = Check(ActionType.UPDATE, model);

        if (entity != null) {
            return ApiData.ok(LangConstants.MSG_INFO_SUCCESS, mapper.updateByPrimaryKeySelective(entity));
        } else {
            return ApiData.error(message);
        }
    }

    @CacheEvict(allEntries = true)
    public ApiData Delete(String id) {
        return ApiData.ok("", mapper.deleteByPrimaryKey(id));
    }

    @Transactional
    @CacheEvict(allEntries = true)
    public ApiData BatchDelete(QuestionCategoryQueryObject queryObject) {
        Map<MapDataType, Object> map = GetList(queryObject);
        Object object = map.get(MapDataType.DATA_LIST);
        int count = 0;
        if (object != null) {
            List<QuestionCategory> list = (List<QuestionCategory>) object;
            if (list != null && list.size() == 1) {
                count += mapper.deleteByPrimaryKey(list.get(0).getId());
            }
        }

        return ApiData.ok("", count);
    }

    @Cacheable
    public QuestionCategoryViewModel GetViewDetail(QuestionCategoryQueryObject queryObject) {
        QuestionCategory entity = GetDetail(queryObject);

        return BuildViewModel(entity);
    }

    @Cacheable
    public ApiPageData GetViewPageList(QuestionCategoryQueryObject queryObject) {
        Map<MapDataType, Object> map = GetList(queryObject);
        List<QuestionCategory> list = (List<QuestionCategory>) map.get(MapDataType.DATA_LIST);

        List<QuestionCategoryViewModel> viewModels = new ArrayList<>();
        for (QuestionCategory entity : list) {
            QuestionCategoryViewModel viewModel = BuildViewModel(entity);

            viewModels.add(viewModel);
        }

        ApiPageData bean = ApiPageData.build();
        bean.setData(viewModels);
        bean.setTotal((Long) map.get(MapDataType.TOTAL_COUNT));

        return bean;
    }

    public List<QuestionCategoryViewModel> getQuestionCategoryTree(QuestionCategoryQueryObject queryObject) {
        List<QuestionCategoryViewModel> reusltQuestionCategorys = new ArrayList<>();

        List<QuestionCategoryViewModel> roots = new ArrayList<>();

        //系统所有菜单
        List<QuestionCategoryViewModel> QuestionCategorys = (List<QuestionCategoryViewModel>) GetViewPageList(queryObject).getData();

        for (QuestionCategoryViewModel QuestionCategory : QuestionCategorys) {
            if (QuestionCategory.getParentid() == null || QuestionCategory.getParentid().isEmpty()) {
                roots.add(QuestionCategory);
            }
        }

        for (QuestionCategoryViewModel root : roots) {
            root = BuildTree(root, QuestionCategorys);

            reusltQuestionCategorys.add(root);
        }

        Collections.sort(reusltQuestionCategorys, (QuestionCategoryViewModel o1, QuestionCategoryViewModel o2) -> {
            if (o2.getStatus() == null || o1.getStatus() == null)
                return o2.getName().compareTo(o1.getName());

            int levelC = o2.getStatus() - o1.getStatus();
            if (levelC == 0)
                return o2.getName().compareTo(o1.getName());
            else
                return levelC;
        });

        return reusltQuestionCategorys;
    }

    @Cacheable
    public ApiPageData GetViewPageListWithChildren(QuestionCategoryQueryObject queryObject) {
        if (queryObject == null) return null;


        //目的获取全部数据
        QuestionCategoryQueryObject queryObject2 = new QuestionCategoryQueryObject();
        queryObject2.setPageIndex(-1);
        queryObject2.setPageSize(-1);

        //查询
        Map<MapDataType, Object> map = GetList(queryObject2);
        List<QuestionCategory> list = (List<QuestionCategory>) map.get(MapDataType.DATA_LIST);

        List<QuestionCategoryViewModel> viewModels = new ArrayList<>();
        if (list != null && list.size() > 0) {
            for (QuestionCategory entity : list) {
                QuestionCategoryViewModel viewModel = BuildViewModel(entity);
                viewModels.add(viewModel);
            }
        }
        viewModels = FormateQuestionCategoryParent(viewModels);

        List<QuestionCategoryViewModel> temps = viewModels;

        //查询条件
        if (queryObject.getId() != null && !queryObject.getId().isEmpty()) {
            viewModels = viewModels.stream()
                    .filter(e -> e.getId() != null)
                    .filter(e -> e.getId().contains(queryObject.getId()))
                    .collect(Collectors.toList());
        }
        if (queryObject.getParentid() != null && !queryObject.getParentid().isEmpty()) {
            viewModels = viewModels.stream()
                    .filter(e -> e.getParentid() != null)
                    .filter(e -> e.getParentid().contains(queryObject.getParentid()))
                    .collect(Collectors.toList());
        }
        if (queryObject.getStatus() != null && queryObject.getStatus() >= 0) {
            viewModels = viewModels.stream()
                    .filter(e -> e.getStatus() != null)
                    .filter(e -> Objects.equals(e.getStatus(), queryObject.getStatus()))
                    .collect(Collectors.toList());
        }
        if (queryObject.getName() != null && !queryObject.getName().isEmpty()) {
            viewModels = viewModels.stream()
                    .filter(e -> e.getName() != null)
                    .filter(e -> e.getName().contains(queryObject.getName()))
                    .collect(Collectors.toList());
        }
        if (queryObject.getStartDateTime() != null && queryObject.getEndDateTime() != null) {
            viewModels = viewModels.stream()
                    .filter(e -> e.getCreatetime().before(queryObject.getStartDateTime()) && e.getCreatetime().after(queryObject.getEndDateTime()))
                    .collect(Collectors.toList());
        }

        //获取筛查后没有取到的父级元素组
        List<QuestionCategoryViewModel> temps2 = new ArrayList<>();
        List<QuestionCategoryViewModel> roots1 = new ArrayList<>();
        for (QuestionCategoryViewModel model : viewModels) {
            if (model != null) {
                List<QuestionCategoryViewModel> parents = GetParent(model, temps, roots1);
                for (QuestionCategoryViewModel parent : parents) {
                    if (viewModels.stream().filter(e -> e.getId().equals(parent.getId())).count() <= 0) {
                        temps2.add(parent);
                    }
                }
            }
        }

        //将父级元素组添加到结果集合中
        for (QuestionCategoryViewModel model : temps2) {
            if (viewModels.stream().filter(e -> e.getId().equals(model.getId())).count() <= 0) {
                viewModels.add(model);
            }
        }

        //通过递归构造树形结构
        List<QuestionCategoryViewModel> roots = new ArrayList<>();
        for (QuestionCategoryViewModel model : viewModels) {
            if (model.getParentid() == null || model.getParentid().isEmpty()) {
                model = BuildTree(model, viewModels);
                String id = model.getId();
                if (roots.stream().filter(e -> e.getId().equals(id)).count() <= 0) {
                    roots.add(model);
                }
            }
        }

        List<QuestionCategoryViewModel> pagelist = ListUtils.pagination(roots, queryObject.getPageIndex(), queryObject.getPageSize());

        //构造结果
        ApiPageData bean = ApiPageData.build();
        bean.setData(pagelist);
        bean.setTotal(roots.size());

        return bean;
    }

    //private methods
    private static QuestionCategoryViewModel BuildViewModel(QuestionCategory entity) {
        if (entity == null)
            return null;

        QuestionCategoryViewModel model = new QuestionCategoryViewModel();

        model.setId(entity.getId());

        model.setStatus(entity.getStatus());
        model.setName(entity.getName());
        model.setIsdeleted(entity.getIsdeleted());
        model.setRemark(entity.getRemark());
        model.setParentid(entity.getParentid());
        model.setCreatetime(entity.getCreatetime());
        model.setUpdatetime(entity.getUpdatetime());
        model.setIcon(entity.getIcon());

        return model;
    }

    public QuestionCategory Check(ActionType actionType, QuestionCategoryViewModel model) {
        message = "";

        if (model == null) {
            message = LangConstants.MSG_ERROR_PARAMETERS;
            return null;
        }

        QuestionCategory entity = null;
        if (ActionType.CREATE == actionType) {
            if (model.getName() != null && !model.getName().isEmpty()) {
                QuestionCategoryQueryObject queryObject2 = new QuestionCategoryQueryObject();
                queryObject2.setName(model.getName());

                Map<MapDataType, Object> map2 = GetList(queryObject2);
                Object object2 = map2.get(MapDataType.DATA_LIST);

                if (object2 != null) {
                    List<QuestionCategory> list = (List<QuestionCategory>) object2;
                    if (list != null && list.size() > 0) {
                        message = LangConstants.MSG_ERROR_NAME_EXISTED;
                        return null;
                    }
                }
            }

            entity = new QuestionCategory();
            entity.setId(UUID.randomUUID().toString());
            entity.setCreatetime(new Date());
            entity.setIsdeleted(false);
        } else {
            QuestionCategoryQueryObject queryObject = new QuestionCategoryQueryObject();
            queryObject.setId(model.getId());

            entity = GetDetail(queryObject);
            entity.setUpdatetime(new Date());

            if (model.getName() != null && !model.getName().isEmpty()) {
                QuestionCategoryQueryObject queryObject2 = new QuestionCategoryQueryObject();
                queryObject2.setName(model.getName());

                Map<MapDataType, Object> map2 = GetList(queryObject2);
                Object object2 = map2.get(MapDataType.DATA_LIST);

                if (object2 != null) {
                    List<QuestionCategory> list = (List<QuestionCategory>) object2;
                    if (list != null && list.size() > 0) {
                        List<QuestionCategory> target = list.stream()
                                .filter(m -> m.getName() != null && m.getName().equals(model.getName()) && !m.getId().equals(model.getId()))
                                .collect(Collectors.toList());
                        if (target != null && target.size() > 0) {
                            message = LangConstants.MSG_ERROR_CODE_EXISTED;
                            return null;
                        }
                    }
                }
            }
        }

        entity.setStatus(model.getStatus());
        entity.setName(model.getName());
        entity.setRemark(model.getRemark());
        entity.setParentid(model.getParentid());
        entity.setIcon(model.getIcon());

        return entity;
    }

    public List<QuestionCategoryViewModel> GetParent(QuestionCategoryViewModel temp, List<QuestionCategoryViewModel> temps, List<QuestionCategoryViewModel> roots) {
        String parentid = temp.getParentid();
        if (parentid != null && !parentid.isEmpty()) {
            List<QuestionCategoryViewModel> temps2 = temps.stream().filter(e -> e.getId().equals(parentid)).collect(Collectors.toList());
            QuestionCategoryViewModel root = temps2 != null && temps2.size() > 0 ? temps2.get(0) : null;
            if (root != null) {
                String rootparentid = root.getParentid();

                if (rootparentid != null && !rootparentid.isEmpty()) {
                    roots = GetParent(root, temps, roots);
                } else {
                    if (roots.stream().filter(e -> e.getId().equals(root.getId())).count() <= 0) {
                        roots.add(root);
                    }
                }
            }
        } else {
            if (roots.stream().filter(e -> e.getId().equals(temp.getId())).count() <= 0) {
                roots.add(temp);
            }
        }

        return roots;
    }

    public QuestionCategoryViewModel BuildTree(QuestionCategoryViewModel root, List<QuestionCategoryViewModel> QuestionCategorys) {
        if (QuestionCategorys == null || QuestionCategorys.size() <= 0) {
            return root;
        }

        List<QuestionCategoryViewModel> children = new ArrayList<>();
        for (QuestionCategoryViewModel QuestionCategory : QuestionCategorys) {
            if (QuestionCategory != null && QuestionCategory.getParentid() != null && root.getId().equals(QuestionCategory.getParentid())) {
                children.add(QuestionCategory);
            }
        }
        Collections.sort(children, (QuestionCategoryViewModel o1, QuestionCategoryViewModel o2) -> {
            if (o2.getStatus() == null || o1.getStatus() == null)
                return o2.getName().compareTo(o1.getName());

            int levelC = o2.getStatus() - o1.getStatus();
            if (levelC == 0)
                return o2.getName().compareTo(o1.getName());
            else
                return levelC;
        });

        root.setChildren(children);

        if (children != null && children.size() > 0) {
            for (QuestionCategoryViewModel child : children) {
                BuildTree(child, QuestionCategorys);
            }
        }

        return root;
    }

    private List<QuestionCategoryViewModel> FormateQuestionCategoryParent(List<QuestionCategoryViewModel> models) {
        List<QuestionCategoryViewModel> list = new ArrayList<>();

        List<QuestionCategoryViewModel> roots = models.stream()
                .filter(m -> m.getParentid() == null || m.getParentid().isEmpty())
                .collect(Collectors.toList());

        list.addAll(roots);

        List<QuestionCategoryViewModel> hasparentnodes = models.stream()
                .filter(m -> m.getParentid() != null && !m.getParentid().isEmpty())
                .collect(Collectors.toList());

        for (QuestionCategoryViewModel hasparentnode : hasparentnodes) {
            List<QuestionCategoryViewModel> parents = models.stream()
                    .filter(m -> m.getId().equals(hasparentnode.getParentid()))
                    .collect(Collectors.toList());
            if (parents != null && parents.size() > 0) {
                QuestionCategoryViewModel model = new QuestionCategoryViewModel();
                QuestionCategoryViewModel entity = parents.get(0);
                model.setId(entity.getId());
                model.setCreatetime(entity.getCreatetime());
                model.setParentid(entity.getParentid());
                model.setName(entity.getName());
                model.setIsdeleted(entity.getIsdeleted());
                model.setRemark(entity.getRemark());
                model.setIcon(entity.getIcon());

                hasparentnode.setParent(model);
            }

            list.add(hasparentnode);
        }

        return list;
    }

    private List<QuestionCategoryViewModel> FormateQuestionCategoryChildren(List<QuestionCategoryViewModel> models) {
        List<QuestionCategoryViewModel> list = new ArrayList<>();

        List<QuestionCategoryViewModel> roots = models.stream()
                .filter(m -> m.getParentid() == null || m.getParentid().isEmpty())
                .collect(Collectors.toList());

        for (QuestionCategoryViewModel root : roots) {
            List<QuestionCategoryViewModel> childrens = models.stream()
                    .filter(m -> m.getParentid() != null && m.getParentid().equals(root.getId()))
                    .collect(Collectors.toList());

            if (childrens != null && childrens.size() > 0) {
                root.setChildren(childrens);
            }

            list.add(root);
        }

        return list;
    }
}