package com.iconplus.smartproc.service.approval;

import com.iconplus.smartproc.exception.BusinessException;
import com.iconplus.smartproc.helper.model.EmptyResponse;
import com.iconplus.smartproc.helper.service.BaseService;
import com.iconplus.smartproc.model.entity.DrpApproval;
import com.iconplus.smartproc.model.entity.DrpApprovalHistory;
import com.iconplus.smartproc.model.request.DrpApprovalRequest;
import com.iconplus.smartproc.repository.DrpApprovalHistoryRepository;
import com.iconplus.smartproc.repository.DrpApprovalRepository;
import com.iconplus.smartproc.repository.DrpRepository;
import com.iconplus.smartproc.util.Constants;
import org.apache.commons.lang3.BooleanUtils;
import org.apache.commons.lang3.ObjectUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;

import javax.transaction.Transactional;
import java.sql.Date;
import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;

@Service
public class PostDrpApprovalExecutionService implements BaseService<DrpApprovalRequest, EmptyResponse> {

    private final DrpApprovalRepository drpApprovalRepository;
    private final DrpRepository drpRepository;
    private final DrpApprovalHistoryRepository drpApprovalHistoryRepository;

    public PostDrpApprovalExecutionService(DrpApprovalRepository drpApprovalRepository,
                                           DrpRepository drpRepository,
                                           DrpApprovalHistoryRepository drpApprovalHistoryRepository) {
        this.drpApprovalRepository = drpApprovalRepository;
        this.drpRepository = drpRepository;
        this.drpApprovalHistoryRepository = drpApprovalHistoryRepository;
    }

    @Transactional
    @Override
    public EmptyResponse execute(DrpApprovalRequest input) {

        var drpApproval = drpApprovalRepository.findByDrpIdAndApproverUserIdAndIsDeleteFalse(input.getDrpId(), input.getUserId())
                .orElseThrow(() -> new BusinessException(Constants.ERR_CODE_10001,
                        Constants.ERR_TTL_10001,
                        String.format(Constants.ERR_MSG_10001, "DRP", input.getDrpId())));

        var drp = drpRepository.findByIdAndIsDeleteFalse(input.getDrpId())
                .orElseThrow(() -> new BusinessException(Constants.ERR_CODE_10001,
                        Constants.ERR_TTL_10001,
                        String.format(Constants.ERR_MSG_10001, "DRP", input.getDrpId())));

        Date dateNow = Date.valueOf(LocalDate.now());

        drpApproval.setIsApprove(input.getIsApprove());
        drpApproval.setCatatan(input.getCatatan());

        List<DrpApprovalHistory> drpApprovalHistoryList = new ArrayList<>();
        var listDrpApproval = drpApprovalRepository.findByDrpIdAndIsDeleteFalse(input.getDrpId());

        DrpApprovalHistory drpApprovalHistoryExecutor = DrpApprovalHistory.builder()
                .drpApprovalId(drpApproval.getId())
                .date(dateNow)
                .status(BooleanUtils.isTrue(input.getIsApprove()) ? "Disetujui" : "Ditolak")
                .isDelete(false)
                .build();
        drpApprovalHistoryList.add(drpApprovalHistoryExecutor);

        if (StringUtils.equalsIgnoreCase(drpApproval.getLevel(), "VP")) {
            drp.setVpApproveDate(dateNow);

            if (BooleanUtils.isTrue(input.getIsApprove())) {
                drp.setApproveStatus(Constants.STATUS_APPROVAL_VP);

                for (DrpApproval drpAppr : listDrpApproval) {
                    if (StringUtils.equalsIgnoreCase(drpAppr.getLevel(), "KOMITE")) {
                        DrpApprovalHistory drpApprovalHistory = DrpApprovalHistory.builder()
                                .drpApprovalId(drpApproval.getId())
                                .date(dateNow)
                                .status("Terkirim")
                                .isDelete(false)
                                .build();
                        drpApprovalHistoryList.add(drpApprovalHistory);
                    }
                }

            } else {
                drp.setApproveStatus(Constants.STATUS_PENYUSUNAN);
                drpApproval.setIsDelete(true);
                drpApprovalRepository.deleteApprovalByDrpId(input.getDrpId());
            }

        } else if (StringUtils.equalsIgnoreCase(drpApproval.getLevel(), "DIREKTUR")) {

            if (ObjectUtils.isEmpty(drp.getKomiteApproveDate())) {
                throw new BusinessException(Constants.ERR_CODE_10013,
                        Constants.ERR_TTL_10013,
                        String.format(Constants.ERR_MSG_10013, "KOMITE"));
            }

            if (BooleanUtils.isTrue(input.getIsApprove())) {
                drp.setApproveStatus(Constants.STATUS_APPROVAL_DIRUT);
            } else {
                drp.setApproveStatus(Constants.STATUS_PENYUSUNAN);
                drpApproval.setIsDelete(true);
                drpApprovalRepository.deleteApprovalByDrpId(input.getDrpId());
            }

            drp.setDirekturApproveDate(dateNow);


        } else {

            if (ObjectUtils.isEmpty(drp.getVpApproveDate())) {
                throw new BusinessException(Constants.ERR_CODE_10013,
                        Constants.ERR_TTL_10013,
                        String.format(Constants.ERR_MSG_10013, "VP"));
            }

            var listKomiteApproval = drpApprovalRepository.getListKomiteApproval(input.getDrpId());
            if (listKomiteApproval.size() == 1) {
                drp.setApproveStatus(Constants.STATUS_REKOMENDASI_KOMITE);
            }

            drp.setKomiteApproveDate(dateNow);

            for (DrpApproval drpAppr : listDrpApproval) {
                if (StringUtils.equalsIgnoreCase(drpAppr.getLevel(), "DIREKTUR")) {
                    DrpApprovalHistory drpApprovalHistory = DrpApprovalHistory.builder()
                            .drpApprovalId(drpApproval.getId())
                            .date(dateNow)
                            .status("Terkirim")
                            .isDelete(false)
                            .build();
                    drpApprovalHistoryList.add(drpApprovalHistory);
                }
            }

        }

        drpApprovalRepository.save(drpApproval);
        drpRepository.save(drp);
        drpApprovalHistoryRepository.saveAll(drpApprovalHistoryList);

        return new EmptyResponse();
    }
}