package com.qxgmat.service.inline;

import com.github.pagehelper.Page;
import com.nuliji.tools.AbstractService;
import com.nuliji.tools.exception.ParameterException;
import com.nuliji.tools.exception.SystemException;
import com.nuliji.tools.mybatis.Example;
import com.qxgmat.data.constants.enums.QuestionType;
import com.qxgmat.data.constants.enums.module.PaperModule;
import com.qxgmat.data.constants.enums.module.QuestionModule;
import com.qxgmat.data.constants.enums.module.QuestionNoModule;
import com.qxgmat.data.constants.enums.module.QuestionOrigin;
import com.qxgmat.data.dao.UserPaperMapper;
import com.qxgmat.data.dao.UserPaperQuestionMapper;
import com.qxgmat.data.dao.entity.QuestionNo;
import com.qxgmat.data.dao.entity.UserPaper;
import com.qxgmat.data.dao.entity.UserPaperQuestion;
import com.qxgmat.data.dao.entity.UserQuestion;
import com.qxgmat.data.relation.UserPaperQuestionRelationMapper;
import com.qxgmat.data.relation.entity.QuestionNoRelation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

@Service
public class UserPaperQuestionService extends AbstractService {
    private static final Logger logger = LoggerFactory.getLogger(UserPaperQuestionService.class);

    @Resource
    private UserPaperQuestionMapper userPaperQuestionMapper;

    @Resource
    private UserPaperQuestionRelationMapper userPaperQuestionRelationMapper;

    /**
     * 添加需要移除的错题
     * @param questionNoList
     */
    @Transactional
    public void addRemoveError(Integer userId, List<QuestionNoRelation> questionNoList){
        for(QuestionNoRelation questionNo : questionNoList){
            if (questionNo.getQuestion().getQuestionType().equals(QuestionType.AWA.key)){
                // 作文不算错题
                continue;
            }
            QuestionModule questionModule = QuestionModule.WithQuestionNo(QuestionNoModule.ValueOf(questionNo.getModule()));
            UserPaperQuestion paperQuestion = UserPaperQuestion.builder()
                    .userId(userId)
                    .questionModule(questionModule.key)
                    .questionOrigin(QuestionOrigin.REMOVE_ERROR.key)
                    .questionNoId(questionNo.getId())
                    // 移出错题，没有对应paper
                    .paperId(0)
                    .build();
            UserPaperQuestion in = one(userPaperQuestionMapper, paperQuestion);
            if (in != null){
                continue;
            }
            add(paperQuestion);
        }
    }

    /**
     * 符合过滤次数的试题
     * @param userId
     * @param origin
     * @param questionNoIds
     * @param filterTimes
     * @return
     */
    public List<Integer> filterTimesQuestion(Integer userId, QuestionOrigin origin, QuestionModule module, List<Integer> questionNoIds, Integer filterTimes){
        List<UserPaperQuestion> filterQuestionList = userPaperQuestionRelationMapper.filterTimes(userId, origin.key, module.key, questionNoIds, filterTimes);
        if (filterQuestionList == null || filterQuestionList.size() == 0){
            return questionNoIds;
        }
        // 移除符合过滤条件的题目
        for(UserPaperQuestion question : filterQuestionList){
            questionNoIds.remove(question.getQuestionNoId());
        }
        return questionNoIds;
    }

    /**
     * 批量添加所有题目关系
     * @param userId
     * @param paperId
     * @param origin
     * @param module
     * @param questionNoIds
     */
    public void addOrigin(Integer userId, Integer paperId, QuestionOrigin origin, QuestionModule module, List<Integer> questionNoIds){
        for(Integer questionNoId : questionNoIds){
            UserPaperQuestion paperQuestion = UserPaperQuestion.builder()
                    .userId(userId)
                    .questionModule(module.key)
                    .questionOrigin(origin.key)
                    .questionNoId(questionNoId)
                    .paperId(paperId)
                    .build();
            add(paperQuestion);
        }
    }

    /**
     * 如果移除正确题目后，再次做错，就取消移除
     * @param userId
     * @param module
     * @param questionNoId
     */
    public void removeRemoveError(Integer userId, QuestionModule module, Integer questionNoId){
        Example example = new Example(UserPaperQuestion.class);
        example.and(
                example.createCriteria()
                .andEqualTo("userId", userId)
                .andEqualTo("questionModule", module.key)
                .andEqualTo("questionNoId", questionNoId)
                .andEqualTo("questionOrigin", QuestionOrigin.REMOVE_ERROR.key)
        );
        delete(userPaperQuestionMapper, example);
    }

    public UserPaperQuestion add(UserPaperQuestion paper){
        int result = insert(userPaperQuestionMapper, paper);
        paper = one(userPaperQuestionMapper, paper.getId());
        if(paper == null){
            throw new SystemException("组卷题目添加失败");
        }
        return paper;
    }

    public UserPaperQuestion edit(UserPaperQuestion paper){
        UserPaperQuestion in = one(userPaperQuestionMapper, paper.getId());
        if(in == null){
            throw new ParameterException("组卷题目不存在");
        }
        int result = update(userPaperQuestionMapper, paper);
        return paper;
    }

    public boolean delete(Number id){
        UserPaperQuestion in = one(userPaperQuestionMapper, id);
        if(in == null){
            throw new ParameterException("组卷题目不存在");
        }
        int result = delete(userPaperQuestionMapper, id);
        return result > 0;
    }

    public UserPaperQuestion get(Number id){
        UserPaperQuestion in = one(userPaperQuestionMapper, id);

        if(in == null){
            throw new ParameterException("组卷题目不存在");
        }
        return in;
    }

    public Page<UserPaperQuestion> select(int page, int pageSize){
        return select(userPaperQuestionMapper, page, pageSize);
    }

    public Page<UserPaperQuestion> select(Integer[] ids){
        return page(()->select(userPaperQuestionMapper, ids), 1, ids.length);
    }

    public List<UserPaperQuestion> select(Collection ids){
        return select(userPaperQuestionMapper, ids);
    }

}