package com.terra.system.service.show;

import com.terra.common.entity.all.StaticData;
import com.terra.system.entity.ctrl.DownloadReqEntity;
import com.terra.system.entity.data.MetaEntity;
import com.terra.system.entity.show.ApplyEntity;
import com.terra.system.entity.show.FlowEntity;
import com.terra.system.entity.sys.UserEntity;
import com.terra.system.helper.AesHelper;
import com.terra.common.helper.StringHelper;
import com.terra.system.mapper.show.ApplyMapper;
import com.terra.system.service.data.MetaService;
import com.terra.system.service.sys.UserService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;

import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * 数据申请
 * @author WWW
 */
@Service
public class ApplyService implements ApplyMapper {
    @Resource
    ApplyMapper applyMapper;

    @Resource
    FlowService flowService;

    @Resource
    UserService userService;

    @Resource
    MetaService metaService;

    @Resource
    DataLibService dataLibService;

    private final static Log log = LogFactory.getLog(ApplyService.class);

    @Override
    public Integer selectCount(String uname, Integer status, Timestamp start, Timestamp end) {
        uname = StringHelper.getLikeUpperStr(uname);

        return applyMapper.selectCount(uname, status, start, end);
    }

    @Override
    public List<ApplyEntity> selectByPage(Integer userid, String uname, Integer status, Timestamp start, Timestamp end, Integer limit, Integer offset) {
        uname = StringHelper.getLikeUpperStr(uname);

        return applyMapper.selectByPage(userid, uname, status, start, end, limit, offset);
    }

    @Override
    public List<ApplyEntity> selectAll() {
        return applyMapper.selectAll();
    }

    @Override
    public ApplyEntity selectById(int id) {
        return applyMapper.selectById(id);
    }

    @Override
    public UserEntity selectUserByDepcode(String depcode) {
        return applyMapper.selectUserByDepcode(depcode);
    }

    @Override
    public Integer selectSubmits(Integer userid) {
        return applyMapper.selectSubmits(userid);
    }

    @Override
    public List<FlowEntity> selectFlows(Integer applyid) {
        return applyMapper.selectFlows(applyid);
    }

    @Override
    public Integer insert(ApplyEntity entity) {
        return applyMapper.insert(entity);
    }

    @Override
    public Integer inserts(List<ApplyEntity> list) {
        return applyMapper.inserts(list);
    }

    @Override
    public Integer delete(int id) {
        return applyMapper.delete(id);
    }

    @Override
    public Integer deletes(List<Integer> ids) {
        return applyMapper.deletes(ids);
    }

    @Override
    public Integer update(ApplyEntity entity) {
        return applyMapper.update(entity);
    }

    @Override
    public Integer updates(List<ApplyEntity> list) {
        return applyMapper.updates(list);
    }

    @Override
    public Integer updateForDiscard(Integer userid, Integer id) {
        return applyMapper.updateForDiscard(userid, id);
    }

    @Override
    public Integer updateForResubmit(Integer userid, Integer id) {
        return applyMapper.updateForResubmit(userid, id);
    }

    @Override
    public Integer updateForSubmit(Integer userid, Integer applyid, Integer flowId) {
        return applyMapper.updateForSubmit(userid, applyid, flowId);
    }

    @Override
    public Integer updateForReject(Integer userid, Integer applyid, Integer flowId) {
        return applyMapper.updateForReject(userid, applyid, flowId);
    }

    /**
     * 插入数据申请
     */
    public Integer insertApply(UserEntity ue, DownloadReqEntity dr) throws Exception {
        ApplyEntity apply = getApplyEntity(ue, dr);
        int rows = applyMapper.insert(apply);
        if (0 == rows) {
            return 0;
        }

        List<FlowEntity> list = getFlowEntities(apply.getId(), ue, dr);
        if (list.isEmpty()) {
            applyMapper.delete(apply.getId());
            throw new Exception("找不到待审核人");
        }

        return flowService.inserts(list);
    }

    /**
     * 获取数据申请实体类
     */
    private ApplyEntity getApplyEntity(UserEntity ue, DownloadReqEntity dr) throws Exception {
        // String dbPwd = Md5Helper.reverse(Md5Helper.generate(dr.getPwd()))
        String aesPwd = AesHelper.encrypt(dr.getPwd());
        String gids = null == dr.getIds() || dr.getIds().isEmpty() ? null : StringHelper.join(dr.getIds(), ",");

        ApplyEntity apply = new ApplyEntity();
        apply.setUserid(ue.getId());
        apply.setDepids(StringHelper.join(dr.getDepcodes(), ","));
        apply.setTabs(getTabs(dr));
        apply.setEntities(StringHelper.join(dr.getEntities(), ","));
        apply.setWkt(dr.getWkt());
        apply.setPwd(aesPwd);
        apply.setStatus(0);
        apply.setCount(dr.getDepcodes().size());
        apply.setDescr(dr.getDescr());
        apply.setCreateUser(ue.getId());
        apply.setDepcode(dr.getDepcode());
        apply.setDircodes(dr.getDirs());
        apply.setGids(gids);
        apply.setFilters(dr.getFilter());

        return apply;
    }

    /**
     * 获取表名
     */
    private String getTabs(DownloadReqEntity dr) {
        if (!StaticData.SYS_META.equals(dr.getEntities().get(0))) {
            return StringHelper.join(dr.getTabs(), ",");
        }

        List<MetaEntity> list = metaService.selectMetaFiles(dr.getIds());
        if (null == list || list.isEmpty()) {
            return "元数据表";
        }

        StringBuilder sb = new StringBuilder();
        for (MetaEntity me : list) {
            sb.append(me.getName()).append(",");
            if (sb.length() > StaticData.I1000) {
                break;
            }
        }
        if (sb.length() > 1) {
            sb.deleteCharAt(sb.length() - 1);
        }

        return sb.toString();
    }

    /**
     * 获取申请流程实体类集合
     */
    private List<FlowEntity> getFlowEntities(Integer applyId, UserEntity ue, DownloadReqEntity dr) {
        List<FlowEntity> list = new ArrayList<>();
        for (String depcode : dr.getDepcodes()) {
            UserEntity user = selectUserByDepcode(depcode);
            if (null == user) {
                user = userService.selectByUid(StaticData.ADMIN);
            }

            FlowEntity flow = new FlowEntity();
            flow.setApplyid(applyId);
            flow.setDepcode(depcode);
            flow.setUserid(user.getId());
            flow.setStatus(0);
            flow.setDescr(null);
            flow.setCreateUser(ue.getId());

            list.add(flow);
        }

        return list;
    }

    /**
     * 打包DB数据
     */
    public void zipDbData(UserEntity ue, ApplyEntity entity) {
        try {
            List<String> entities = Arrays.asList(entity.getEntities().split(StaticData.COMMA));
            String pwd = AesHelper.decrypt(entity.getPwd());

            DownloadReqEntity dr = new DownloadReqEntity();
            dr.setEntities(entities);
            dr.setWkt(dr.getWkt());
            dr.setPwd(pwd);
            dr.setDepcode(entity.getDepcode());
            dr.setDirs(entity.getDircodes());
            dr.setIds(getIds(entity.getGids()));
            dr.setFilter(entity.getFilters());

            String guid = StaticData.SYS_META.equals(entity.getEntities()) ? metaService.downloadMeteReq(ue, dr) : dataLibService.downloadDbReq(ue, dr);
            if (!StringHelper.isEmpty(guid)) {
                entity.setGuid(guid);
                update(entity);
            }
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
        }
    }

    /**
     * 获取ID集合
     */
    private List<Integer> getIds(String gids) {
        if (StringHelper.isEmpty(gids)) {
            return null;
        }

        List<Integer> list = new ArrayList<>();
        for (String str : gids.split(StaticData.COMMA)) {
            list.add(Integer.parseInt(str));
        }

        return list;
    }
}