package com.benyun.project.system.dict.service;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import javax.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.benyun.common.constant.UserConstants;
import com.benyun.common.exception.ServiceException;
import com.benyun.common.utils.StringUtils;
import com.benyun.common.utils.security.ShiroUtils;
import com.benyun.common.utils.text.Convert;
import com.benyun.framework.web.domain.Ztree;
import com.benyun.project.system.dict.domain.DictData;
import com.benyun.project.system.dict.domain.DictType;
import com.benyun.project.system.dict.mapper.DictDataMapper;
import com.benyun.project.system.dict.mapper.DictTypeMapper;
import com.benyun.project.system.dict.utils.DictUtils;

/**
 * 字典 业务层处理
 *
 * @author liugang
 */
@Service
public class DictTypeServiceImpl implements IDictTypeService
{
    @Autowired
    private DictTypeMapper dictTypeMapper;

    @Autowired
    private DictDataMapper dictDataMapper;

    /**
     * 项目启动时，初始化字典到缓存
     */
    @PostConstruct
    public void init()
    {
        loadingDictCache();
    }

    /**
     * 根据条件分页查询字典类型
     *
     * @param dictType 字典类型信息
     * @return 字典类型集合信息
     */
    @Override
    public List<DictType> selectDictTypeList(DictType dictType)
    {
        return dictTypeMapper.selectDictTypeList(dictType);
    }

    /**
     * 根据所有字典类型
     *
     * @return 字典类型集合信息
     */
    @Override
    public List<DictType> selectDictTypeAll()
    {
        return dictTypeMapper.selectDictTypeAll();
    }

    /**
     * 根据字典类型查询字典数据
     *
     * @param dictType 字典类型
     * @return 字典数据集合信息
     */
    @Override
    public List<DictData> selectDictDataByType(String dictType)
    {
        List<DictData> dictDatas = DictUtils.getDictCache(dictType);
        if (StringUtils.isNotEmpty(dictDatas))
        {
            return dictDatas;
        }
        dictDatas = dictDataMapper.selectDictDataByType(dictType);
        if (StringUtils.isNotEmpty(dictDatas))
        {
            DictUtils.setDictCache(dictType, dictDatas);
            return dictDatas;
        }
        return null;
    }

    /**
     * 根据字典类型ID查询信息
     *
     * @param dictId 字典类型ID
     * @return 字典类型
     */
    @Override
    public DictType selectDictTypeById(Long dictId)
    {
        return dictTypeMapper.selectDictTypeById(dictId);
    }

    /**
     * 根据字典类型查询信息
     *
     * @param dictType 字典类型
     * @return 字典类型
     */
    @Override
    public DictType selectDictTypeByType(String dictType)
    {
        return dictTypeMapper.selectDictTypeByType(dictType);
    }

    /**
     * 批量删除字典类型
     *
     * @param ids 需要删除的数据
     */
    @Override
    public void deleteDictTypeByIds(String ids)
    {
        Long[] dictIds = Convert.toLongArray(ids);
        for (Long dictId : dictIds)
        {
            DictType dictType = selectDictTypeById(dictId);
            if (dictDataMapper.countDictDataByType(dictType.getDictType()) > 0)
            {
                throw new ServiceException(String.format("%1$s已分配,不能删除", dictType.getDictName()));
            }
            dictTypeMapper.deleteDictTypeById(dictId);
            DictUtils.removeDictCache(dictType.getDictType());
        }
    }

    /**
     * 加载字典缓存数据
     */
    @Override
    public void loadingDictCache()
    {
        DictData dictData = new DictData();
        dictData.setStatus("0");
        Map<String, List<DictData>> dictDataMap = dictDataMapper.selectDictDataList(dictData).stream().collect(Collectors.groupingBy(DictData::getDictType));
        for (Map.Entry<String, List<DictData>> entry : dictDataMap.entrySet())
        {
            DictUtils.setDictCache(entry.getKey(), entry.getValue().stream().sorted(Comparator.comparing(DictData::getDictSort)).collect(Collectors.toList()));
        }
    }

    /**
     * 清空字典缓存数据
     */
    @Override
    public void clearDictCache()
    {
        DictUtils.clearDictCache();
    }

    /**
     * 重置字典缓存数据
     */
    @Override
    public void resetDictCache()
    {
        clearDictCache();
        loadingDictCache();
    }

    /**
     * 新增保存字典类型信息
     *
     * @param dict 字典类型信息
     * @return 结果
     */
    @Override
    public int insertDictType(DictType dict)
    {
        dict.setCreateBy(ShiroUtils.getLoginName());
        int row = dictTypeMapper.insertDictType(dict);
        if (row > 0)
        {
            DictUtils.setDictCache(dict.getDictType(), null);
        }
        return row;
    }

    /**
     * 修改保存字典类型信息
     *
     * @param dict 字典类型信息
     * @return 结果
     */
    @Override
    @Transactional
    public int updateDictType(DictType dict)
    {
        dict.setUpdateBy(ShiroUtils.getLoginName());
        DictType oldDict = dictTypeMapper.selectDictTypeById(dict.getDictId());
        dictDataMapper.updateDictDataType(oldDict.getDictType(), dict.getDictType());
        int row = dictTypeMapper.updateDictType(dict);
        if (row > 0)
        {
            List<DictData> dictDatas = dictDataMapper.selectDictDataByType(dict.getDictType());
            DictUtils.setDictCache(dict.getDictType(), dictDatas);
        }
        return row;
    }

    /**
     * 校验字典类型称是否唯一
     *
     * @param dict 字典类型
     * @return 结果
     */
    @Override
    public String checkDictTypeUnique(DictType dict)
    {
        Long dictId = StringUtils.isNull(dict.getDictId()) ? -1L : dict.getDictId();
        DictType dictType = dictTypeMapper.checkDictTypeUnique(dict.getDictType());
        if (StringUtils.isNotNull(dictType) && dictType.getDictId().longValue() != dictId.longValue())
        {
            return UserConstants.DICT_TYPE_NOT_UNIQUE;
        }
        return UserConstants.DICT_TYPE_UNIQUE;
    }

    /**
     * 查询字典类型树
     *
     * @param dictType 字典类型
     * @return 所有字典类型
     */
    @Override
    public List<Ztree> selectDictTree(DictType dictType)
    {
        List<Ztree> ztrees = new ArrayList<Ztree>();
        List<DictType> dictList = dictTypeMapper.selectDictTypeList(dictType);
        for (DictType dict : dictList)
        {
            if (UserConstants.DICT_NORMAL.equals(dict.getStatus()))
            {
                Ztree ztree = new Ztree();
                ztree.setId(dict.getDictId());
                ztree.setName(transDictName(dict));
                ztree.setTitle(dict.getDictType());
                ztrees.add(ztree);
            }
        }
        return ztrees;
    }

    public String transDictName(DictType dictType)
    {
        StringBuffer sb = new StringBuffer();
        sb.append("(" + dictType.getDictName() + ")");
        sb.append("&nbsp;&nbsp;&nbsp;" + dictType.getDictType());
        return sb.toString();
    }
}
