package nju.seec.helper.service.impl;

import com.fasterxml.jackson.core.JsonProcessingException;
import nju.seec.helper.dto.LoginUser;
import nju.seec.helper.service.QuestionService;
import nju.seec.helper.util.BOKUtil;
import nju.seec.helper.util.JsonUtils;
import nju.seec.helper.util.RestRequestUtil;
import nju.seec.helper.util.enums.ExceptionType;
import nju.seec.helper.util.enums.QuestionKindState;
import nju.seec.helper.util.exception.HelperException;
import nju.seec.helper.vo.quiz.ChoiceQuestionVO;
import nju.seec.helper.vo.quiz.QuestionVO;
import nju.seec.helper.vo.quiz.TrueOrFalseQuestionVO;
import org.omg.CORBA.portable.UnknownException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageImpl;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Service
public class QuestionServiceImpl implements QuestionService {
    @Autowired
    private BOKUtil bokUtil;

    @Override
    public Page<QuestionVO> getQuestionList(LoginUser user, String stem, Pageable pageable) throws JsonProcessingException {
        List<QuestionVO> Questions = new ArrayList<QuestionVO>();
        Map page = new HashMap();
        bokUtil.BokFindByStemLike(stem, Questions,page,pageable);
        Page<QuestionVO> ret =new PageImpl<QuestionVO>(Questions,pageable,Long.valueOf((Integer)page.get("totalElements")));
        return ret;
    }

    @Override
    public QuestionVO getQuestion(String questionId) {
        return bokUtil.BokFindById(questionId);
    }
    @Override
    public QuestionVO newQuestion(QuestionVO newQuestion) {
        try {
            return bokUtil.PostNewQuestion(newQuestion);
        } catch (JsonProcessingException e) {
            throw HelperException.of(ExceptionType.ERROR,"请求BOK题库数据错误："+e.getMessage());
        }
    }

    @Override
    public QuestionVO updateQuestion(QuestionVO newQuestion) {
        try {
            return bokUtil.PutQuestion(newQuestion);
        } catch (JsonProcessingException e) {
            throw HelperException.of(ExceptionType.ERROR,"请求BOK题库数据错误："+e.getMessage());
        }
    }

    @Override
    public void deleteQuestion(String questionId) {
        bokUtil.deleteQuestion(questionId);
    }

}