package com.pollex.pam.service;

import com.pollex.pam.domain.AppointmentCustomerView;
import com.pollex.pam.domain.Consultant;
import com.pollex.pam.domain.CustomerFavoriteConsultant;
import com.pollex.pam.repository.AppointmentCustomerViewRepository;
import com.pollex.pam.repository.ConsultantRepository;
import com.pollex.pam.repository.CustomerFavoriteConsultantRepository;
import com.pollex.pam.security.SecurityUtils;
import com.pollex.pam.service.dto.*;
import com.pollex.pam.service.mapper.AppointmentCustomerViewMapper;
import com.pollex.pam.service.mapper.ConsultantMapper;
import com.pollex.pam.web.rest.errors.ConsultantNotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.stream.Collectors;

@Service
public class ConsultantService {

    private static final Logger log = LoggerFactory.getLogger(ConsultantService.class);

    @Autowired
    ConsultantRepository consultantRepository;

    @Autowired
    CustomerFavoriteConsultantRepository customerFavoriteConsultantRepository;

    @Autowired
    ConsultantMapper consultantMapper;

    @Autowired
    AppointmentService appointmentService;

    @Autowired
    AppointmentCustomerViewRepository appointmentCustomerViewRepository;

    @Autowired
    AppointmentCustomerViewMapper appointmentCustomerViewMapper;

    public List<ConsultantDTO> getMyConsultantList() {
        Long userId = SecurityUtils.getCustomerId();
        return customerFavoriteConsultantRepository.findAllByCustomerId(userId)
            .stream()
            .map(consultantMapper::toDto)
            .collect(Collectors.toList());
    }

    public List<ConsultantDTO> getRecommendConsultantList() {
        return consultantRepository.findAllByRecommendIsTrue()
            .stream()
            .map(consultantMapper::toDto)
            .collect(Collectors.toList());
    }

    public List<ConsultantDTO> strictQueryConsultant(StrictQueryConsultantParam param) {
        return consultantRepository.findAll(ConsultantQuerySpec.getStrictQuerySpec(param))
            .stream()
            .map(consultantMapper::toDto)
            .collect(Collectors.toList());
    }

    public List<ConsultantDTO> fastQueryConsultant(FastQueryConsultantParam param) {
        return consultantRepository.findAll(ConsultantQuerySpec.getFastQuerySpec(param))
            .stream()
            .map(consultantMapper::toDto)
            .collect(Collectors.toList());
    }

    public ConsultantDetailDTO getConsultantDetail(String agentNo) {
        Consultant consultant = consultantRepository.findOneByAgentNo(agentNo).orElseThrow(ConsultantNotFoundException::new);
        return consultantMapper.toDetailDto(consultant);
    }

    @Transactional
    public void addConsultantToCustomList(AddConsultantParam param) {
        List<String> agentNoList = param.getAgentNoList();
        List<Consultant> consultants = consultantRepository.findAllByAgentNoIn(agentNoList);
        Long userId = SecurityUtils.getCustomerId();

        consultants.forEach(consultant -> {
            boolean isConsultantInList = customerFavoriteConsultantRepository.findOneByCustomerIdAndConsultant(userId, consultant).isPresent();

            if(!isConsultantInList) {
                CustomerFavoriteConsultant customerFavoriteConsultant = new CustomerFavoriteConsultant();
                customerFavoriteConsultant.setConsultant(consultant);
                customerFavoriteConsultant.setCustomerId(userId);

                customerFavoriteConsultantRepository.save(customerFavoriteConsultant);
            }
            else {
                log.info("The consultant is in customer favorite list! customId = {}, consultant AgentNo = {}", userId, consultant.getAgentNo());
            }
        });

    }

	public List<AppointmentCustomerViewDTO> getMyAppointment() {
		String agentNo = SecurityUtils.getAgentNo();
		List<AppointmentCustomerView> appointmentList = appointmentCustomerViewRepository.findByAgentNo(agentNo);
		return appointmentCustomerViewMapper.toAppointmentCustomerViewDTO(appointmentList);
	}

    public void removeConsultantFromCustomList(String agentNo) {
        Long customId = SecurityUtils.getCustomerId();
        Consultant consultant = consultantRepository.findOneByAgentNo(agentNo).orElseThrow(ConsultantNotFoundException::new);
        CustomerFavoriteConsultant target = customerFavoriteConsultantRepository.findOneByCustomerIdAndConsultant(customId, consultant).orElse(null);

        if(target != null) {
            customerFavoriteConsultantRepository.delete(target);
        }
        else {
            log.info("this consultant is not in customer list! agentNo = {}, customId = {}", agentNo, customId);
        }
    }
}