package net.gepafin.tendermanagement.service.impl;

import jakarta.servlet.http.HttpServletRequest;
import net.gepafin.tendermanagement.config.Translator;
import net.gepafin.tendermanagement.constants.GepafinConstant;
import net.gepafin.tendermanagement.dao.ApplicationAmendmentRequestDao;
import net.gepafin.tendermanagement.entities.ApplicationAmendmentRequestEntity;
import net.gepafin.tendermanagement.entities.ApplicationEvaluationEntity;
import net.gepafin.tendermanagement.entities.UserEntity;
import net.gepafin.tendermanagement.enums.ApplicationAmendmentRequestEnum;
import net.gepafin.tendermanagement.model.request.ApplicationAmendmentPaginationRequestBean;
import net.gepafin.tendermanagement.model.request.ApplicationAmendmentRequest;
import net.gepafin.tendermanagement.model.request.ApplicationAmendmentRequestBean;
import net.gepafin.tendermanagement.model.request.CloseAmendmentRequest;
import net.gepafin.tendermanagement.model.response.ApplicationAmendmentRequestResponse;
import net.gepafin.tendermanagement.model.response.ApplicationAmendmentRequestViewResponse;
import net.gepafin.tendermanagement.model.response.PageableResponseBean;
import net.gepafin.tendermanagement.model.response.GetAllAmendmentResponseBean;
import net.gepafin.tendermanagement.repositories.ApplicationAmendmentRequestRepository;
import net.gepafin.tendermanagement.repositories.ApplicationEvaluationRepository;
import net.gepafin.tendermanagement.service.ApplicationAmendmentRequestService;
import net.gepafin.tendermanagement.service.UserService;
import net.gepafin.tendermanagement.util.Validator;
import net.gepafin.tendermanagement.web.rest.api.errors.CustomValidationException;
import net.gepafin.tendermanagement.web.rest.api.errors.ResourceNotFoundException;
import net.gepafin.tendermanagement.web.rest.api.errors.Status;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;
import java.util.Optional;

@Service
public class ApplicationAmendmentRequestServiceImpl implements ApplicationAmendmentRequestService {

    @Autowired
   private Validator validator;

    @Autowired
    private ApplicationAmendmentRequestDao applicationAmendmentRequestDao;
    @Autowired
    private ApplicationAmendmentRequestRepository applicationAmendmentRequestRepository;
    @Autowired
    private ApplicationEvaluationRepository applicationEvaluationRepository;

    @Autowired
    private UserService userService;

    @Override
    public ApplicationAmendmentRequestResponse getApplicationDataForAmendment(HttpServletRequest request, Long applicationEvaluationId) {
        Optional<ApplicationEvaluationEntity> entityOptional = applicationEvaluationRepository.findByIdAndIsDeletedFalse(applicationEvaluationId);
        entityOptional.ifPresent(applicationEvaluationEntity -> validator.validatePreInstructor(request, applicationEvaluationEntity.getUserId()));
        return applicationAmendmentRequestDao.getApplicationDataForAmendment(applicationEvaluationId);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public ApplicationAmendmentRequestResponse createApplicationAmendmentRequest(HttpServletRequest request, Long applicationEvaluationId , ApplicationAmendmentRequest applicationAmendmentRequest) {
        Optional<ApplicationEvaluationEntity> entityOptional = applicationEvaluationRepository.findByIdAndIsDeletedFalse(applicationEvaluationId);
        entityOptional.ifPresent(applicationEvaluationEntity -> validator.validatePreInstructor(request, applicationEvaluationEntity.getUserId()));
        return applicationAmendmentRequestDao.createApplicationAmendmentRequest(applicationEvaluationId,applicationAmendmentRequest);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void deleteApplicationAmendmentRequest(HttpServletRequest request, Long id) {
        ApplicationAmendmentRequestEntity amendment = applicationAmendmentRequestRepository.findByIdAndIsDeletedFalse(id)
                .orElseThrow(() -> new ResourceNotFoundException(Status.NOT_FOUND,
                        Translator.toLocale(GepafinConstant.APPLICATION_AMENDMENT_NOT_FOUND_MSG)));

        Optional<ApplicationEvaluationEntity> entityOptional = applicationEvaluationRepository.findByIdAndIsDeletedFalse(amendment.getApplicationEvaluationEntity().getId());
        if (entityOptional.isPresent()) {
            UserEntity user = validator.validatePreInstructor(request, entityOptional.get().getUserId());

            applicationAmendmentRequestDao.deleteById(id);
        }
    }

    @Override
    public ApplicationAmendmentRequestResponse getApplicationAmendmentRequestById(HttpServletRequest request,Long id) {
        ApplicationAmendmentRequestEntity amendment = applicationAmendmentRequestRepository.findByIdAndIsDeletedFalse(id)
                .orElseThrow(() -> new ResourceNotFoundException(Status.NOT_FOUND,
                        Translator.toLocale(GepafinConstant.APPLICATION_AMENDMENT_NOT_FOUND_MSG)));

        Optional<ApplicationEvaluationEntity> entityOptional = applicationEvaluationRepository.findByIdAndIsDeletedFalse(amendment.getApplicationEvaluationEntity().getId());
        if (entityOptional.isPresent()) {
            UserEntity user = validator.validatePreInstructor(request, entityOptional.get().getUserId());
        }
            return applicationAmendmentRequestDao.getApplicationAmendmentRequestById(id);

    }

    @Override
    public List<GetAllAmendmentResponseBean> getAllApplicationAmendmentRequest(HttpServletRequest request, Long userId) {
        return applicationAmendmentRequestDao.getAllApplicationAmendmentRequest(request,userId);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public ApplicationAmendmentRequestResponse updateApplicationAmendment(HttpServletRequest request, Long id, ApplicationAmendmentRequestBean applicationAmendmentRequestBean) {
            return applicationAmendmentRequestDao.updateApplicationAmendment(id,applicationAmendmentRequestBean);
    }

    @Override
    public ApplicationAmendmentRequestEntity validateApplicationAmendmentRequest(Long applicationAmendmentId) {

        return applicationAmendmentRequestDao.validateApplicationAmendmentRequest(applicationAmendmentId);
    }

    @Override
    public List<ApplicationAmendmentRequestResponse> getAllAmendmentRequestByBeneficiaryId(HttpServletRequest request, Long beneficiaryUserId) {
        UserEntity user= validator.validateUser(request);
        return applicationAmendmentRequestDao.getAllAmendmentRequestByBeneficiaryId(beneficiaryUserId);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public ApplicationAmendmentRequestResponse closeAmendmentRequest(HttpServletRequest request, Long id, CloseAmendmentRequest closeAmendmentRequest) {
        ApplicationAmendmentRequestEntity amendment = applicationAmendmentRequestRepository.findByIdAndIsDeletedFalse(id)
                .orElseThrow(() -> new ResourceNotFoundException(Status.NOT_FOUND,
                        Translator.toLocale(GepafinConstant.APPLICATION_AMENDMENT_NOT_FOUND_MSG)));

        Optional<ApplicationEvaluationEntity> entityOptional = applicationEvaluationRepository.findByIdAndIsDeletedFalse(amendment.getApplicationEvaluationEntity().getId());
        if (entityOptional.isPresent()) {
            UserEntity user = validator.validatePreInstructor(request, entityOptional.get().getUserId());
        }
            return applicationAmendmentRequestDao.closeAmendmentRequest(id,closeAmendmentRequest);
    }
    
    @Override
    @Transactional(rollbackFor = Exception.class)
    public ApplicationAmendmentRequestResponse extendResponseDays(HttpServletRequest request, Long id, Long addedDays) {
        UserEntity user= validator.validateUser(request);
        return applicationAmendmentRequestDao.extendResponseDays(id, addedDays);

    }
    public List<ApplicationAmendmentRequestResponse> getAmendmentByApplicationId(HttpServletRequest request, Long applicationId,List<ApplicationAmendmentRequestEnum> statuses) {
            return applicationAmendmentRequestDao.getAmendmentByApplicationId(request,applicationId,statuses);
    }
    @Override
    @Transactional(rollbackFor = Exception.class)
    public ApplicationAmendmentRequestResponse updateApplicationAmendmentStatus(HttpServletRequest request, Long applicationAmendmentId, ApplicationAmendmentRequestEnum status) {
        return applicationAmendmentRequestDao.updateApplicationAmendmentStatus(applicationAmendmentId, status);

    }
    @Override
    public void sendReminderEmail(HttpServletRequest request,Long amendmentId) {
        ApplicationAmendmentRequestEntity amendment = applicationAmendmentRequestRepository.findByIdAndIsDeletedFalse(amendmentId)
                .orElseThrow(() -> new ResourceNotFoundException(Status.NOT_FOUND,
                        Translator.toLocale(GepafinConstant.APPLICATION_AMENDMENT_NOT_FOUND_MSG)));

        Optional<ApplicationEvaluationEntity> entityOptional = applicationEvaluationRepository.findByIdAndIsDeletedFalse(amendment.getApplicationEvaluationEntity().getId());
        if (entityOptional.isPresent()) {
            UserEntity user = validator.validatePreInstructor(request, entityOptional.get().getUserId());

            applicationAmendmentRequestDao.sendReminderEmail(amendmentId);
        }
    }

    @Override
    public PageableResponseBean<List<ApplicationAmendmentRequestViewResponse>> getApplicationAmendmentByPaginnation(HttpServletRequest request, Long userId, ApplicationAmendmentPaginationRequestBean amendmentPaginationRequestBean) {
        boolean isSpecialUser = validator.checkIsBeneficiary() ||
                validator.checkIsConfidi() ||
                validator.checkIsPreInstructor() ||
                validator.checkIsInstructorManager();

        if (isSpecialUser && Boolean.TRUE.equals(validator.checkRequestedUserWithUserId(request,userId))) {
            throw new CustomValidationException(Status.VALIDATION_ERROR, Translator.toLocale(GepafinConstant.INVALID_USER_ID));
        }

        return applicationAmendmentRequestDao.getApplicationAmendmentByPaginationByView(userId,amendmentPaginationRequestBean);
    }
}