package kr.wisestone.owl.service.impl;

import kr.wisestone.owl.config.kafka.KafkaSender;
import kr.wisestone.owl.constant.Constants;
import kr.wisestone.owl.constant.MsgConstants;
import kr.wisestone.owl.domain.Qna;
import kr.wisestone.owl.exception.OwlRuntimeException;
import kr.wisestone.owl.mapper.QnaMapper;
import kr.wisestone.owl.repository.QnaRepository;
import kr.wisestone.owl.service.QnaService;
import kr.wisestone.owl.service.UserService;
import kr.wisestone.owl.util.ConvertUtil;
import kr.wisestone.owl.vo.QnaVo;
import kr.wisestone.owl.vo.ResPage;
import kr.wisestone.owl.web.condition.QnaCondition;
import kr.wisestone.owl.web.form.QnaForm;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;
import java.util.Map;

@Service
public class QnaServiceImpl extends AbstractServiceImpl<Qna, Long, JpaRepository<Qna, Long>> implements QnaService {

    @Autowired
    private QnaRepository qnaRepository;

    @Autowired
    private UserService userService;

    @Autowired
    private KafkaSender kafkaSender;

    @Autowired
    private QnaMapper qnaMapper;

    @Override
    protected JpaRepository<Qna, Long> getRepository() {
        return this.qnaRepository;
    }

    //  공지 사항 등록
    @Override
    @Transactional
    public Qna addQna(QnaForm qnaForm) {
        //  Qna 제목 및 내용 공백 체크
        this.verifyTitleAndDescription(qnaForm.getTitle(), qnaForm.getDescription());

        Qna qna = ConvertUtil.copyProperties(qnaForm, Qna.class);

        return this.qnaRepository.saveAndFlush(qna);
    }

    //  Qna 제목 및 내용 공백 체크
    private void verifyTitleAndDescription(String title, String description) {
        if (StringUtils.isEmpty(title) || StringUtils.isEmpty(description)) {
            throw new OwlRuntimeException(this.messageAccessor.getMessage(MsgConstants.QNA_EMPTY_CONTENT));
        }
    }

    //  Qna 조회
    @Override
    @Transactional(readOnly = true)
    public List<QnaVo> findQna(Map<String, Object> resJsonData,
                               QnaCondition qnaCondition, Pageable pageable) {

        qnaCondition.setPage(pageable.getPageNumber() * pageable.getPageSize());
        qnaCondition.setPageSize(pageable.getPageSize());
        qnaCondition.setTitle(qnaCondition.getTitle());

        List<Map<String, Object>> results = this.qnaMapper.find(qnaCondition);
        Long totalCount = this.qnaMapper.count(qnaCondition);
        int totalPage = (int) Math.ceil((totalCount - 1) / pageable.getPageSize()) + 1;
        List<QnaVo> qnaVos = ConvertUtil.convertListToListClass(results, QnaVo.class);

        resJsonData.put(Constants.RES_KEY_CONTENTS, qnaVos);
        resJsonData.put(Constants.REQ_KEY_PAGE_VO, new ResPage(pageable.getPageNumber(), pageable.getPageSize(),
                totalPage, totalCount));

        return qnaVos;
    }

    //  Qna 수정
    @Override
    @Transactional
    public Qna modifyQna(QnaForm qnaForm) {
        //  공지사항 제목 및 내용 공백 체크
        this.verifyTitleAndDescription(qnaForm.getTitle(), qnaForm.getDescription());

        Qna qna = this.getQna(qnaForm.getId());
        ConvertUtil.copyProperties(qnaForm, qna, "id");

        return this.qnaRepository.saveAndFlush(qna);
    }

    //  Qna id 로 조회한다.
    @Override
    @Transactional(readOnly = true)
    public Qna getQna(Long id) {
        if (id == null) {
            throw new OwlRuntimeException(
                    this.messageAccessor.getMessage(MsgConstants.QNA_NOT_EXIST));
        }

        Qna qna = this.findOne(id);

        if (qna == null) {
            throw new OwlRuntimeException(
                    this.messageAccessor.getMessage(MsgConstants.QNA_NOT_EXIST));
        }

        return qna;
    }

    //  Qna 상세 정보를 조회한다.
    @Override
    @Transactional(readOnly = true)
    public void detailQna(Map<String, Object> resJsonData, QnaCondition qnaCondition) {
        QnaVo qnaVo = new QnaVo();

        if (qnaCondition.getId() != null) {
            Qna qna = this.getQna(qnaCondition.getId());
            qnaVo = ConvertUtil.copyProperties(qna, QnaVo.class);
        }

        resJsonData.put(Constants.RES_KEY_CONTENTS, qnaVo);
    }
}