package kr.wisestone.owl.service.impl;

import com.google.common.collect.Lists;
import kr.wisestone.owl.common.ExcelConditionCheck;
import kr.wisestone.owl.constant.Constants;
import kr.wisestone.owl.constant.MsgConstants;
import kr.wisestone.owl.domain.DepartmentManage;
import kr.wisestone.owl.exception.OwlRuntimeException;
import kr.wisestone.owl.mapper.DepartmentManageMapper;
import kr.wisestone.owl.repository.DepartmentManageRepository;
import kr.wisestone.owl.service.DepartmentManageService;
import kr.wisestone.owl.service.WorkspaceService;
import kr.wisestone.owl.util.ConvertUtil;
import kr.wisestone.owl.vo.*;
import kr.wisestone.owl.web.condition.DepartmentManageCondition;
import kr.wisestone.owl.web.form.DepartmentManageForm;
import kr.wisestone.owl.web.view.ExcelView;
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.ui.Model;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
public class DepartmentManageServiceImpl extends AbstractServiceImpl<DepartmentManage, Long, JpaRepository<DepartmentManage, Long>> implements DepartmentManageService {

    @Autowired
    private DepartmentManageRepository departmentManageRepository;

    @Autowired
    private DepartmentManageMapper departmentManageMapper;

    @Autowired
    private WorkspaceService workspaceService;

    @Autowired
    private ExcelView excelView;

    @Autowired
    private ExcelConditionCheck excelConditionCheck;

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

    @Override
    public DepartmentManage addDepartmentManage(DepartmentManageForm departmentManageForm) {
        DepartmentManage departmentManage = ConvertUtil.copyProperties(departmentManageForm, DepartmentManage.class);
        departmentManageRepository.saveAndFlush(departmentManage);
        return departmentManage;
    }

    @Override
    public DepartmentManage getDepartment(Long id) {
        if (id == null) {
            throw new OwlRuntimeException(
                    this.messageAccessor.getMessage(MsgConstants.USER_LEVEL_NOT_EXIST));
        }

        DepartmentManage departmentManage = this.findOne(id);

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

        return departmentManage;
    }

    @Override
    public List<DepartmentManageVo> findDepartment(Map<String, Object> resJsonData,
                                                   DepartmentManageCondition condition, Pageable pageable) {

        condition.setPage(pageable.getPageNumber() * pageable.getPageSize());
        condition.setPageSize(pageable.getPageSize());

        List<Map<String, Object>> results = this.departmentManageMapper.find(condition);
        Long totalDepartmentCount = this.departmentManageMapper.count(condition);

        return this.convertDepartmentManageVoToMap(results, totalDepartmentCount, pageable, resJsonData);
    }

    //  검색 결과를 DepartmentManageVo 로 변환한다.
    private List<DepartmentManageVo> convertDepartmentManageVoToMap(List<Map<String, Object>> results, Long totalDepartmentCount, Pageable pageable, Map<String, Object> resJsonData) {
        List<DepartmentManageVo> departmentManageVos = Lists.newArrayList();

        for (Map<String, Object> result : results) {
            DepartmentManageVo departmentManageVo = ConvertUtil.convertMapToClass(result, DepartmentManageVo.class);
            // 부서명만 변환 하면 되는건가 ?
            departmentManageVos.add(departmentManageVo);
        }

        int totalPage = (int) Math.ceil((totalDepartmentCount - 1) / pageable.getPageSize()) + 1;

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

        return departmentManageVos;
    }

    //  부서 목록을 엑셀로 다운로드 한다.
    public ModelAndView downloadExcel(HttpServletRequest request, Model model) {
        ModelAndView modelAndView = this.workspaceService.checkUseExcelDownload(model);
        if (modelAndView != null) {
            return modelAndView;
        }

        Map<String, Object> conditions = new HashMap<>();
        //  엑셀 다운로드에 필요한 검색 조건 정보를 추출하고 검색 조건 추출에 오류가 발생하면 경고를 표시해준다.
        modelAndView = this.excelConditionCheck.checkCondition(conditions, request, model);
        if (modelAndView != null) {
            return modelAndView;
        }

        DepartmentManageCondition departmentManageCondition = DepartmentManageCondition.make(conditions);


        List<Map<String, Object>> results = this.departmentManageMapper.find(departmentManageCondition);
        List<DepartmentManageVo> departmentManageVos = ConvertUtil.convertListToListClass(results, DepartmentManageVo.class);

        // code_ko_KR 에 code명 설정
        ExportExcelVo excelInfo = new ExportExcelVo();
        excelInfo.setFileName(this.messageAccessor.message("부서 목록"));
        excelInfo.addAttrInfos(new ExportExcelAttrVo("departmentName", this.messageAccessor.message("departmentManage.departmentName"), 6, ExportExcelAttrVo.ALIGN_CENTER));
        excelInfo.addAttrInfos(new ExportExcelAttrVo("departmentDescription", this.messageAccessor.message("departmentManage.departmentDescription"), 20, ExportExcelAttrVo.ALIGN_CENTER));

        excelInfo.setDatas(departmentManageVos);

        model.addAttribute(Constants.EXCEL, excelInfo);
        return new ModelAndView(this.excelView);
    }

}