package com.pollex.pam.service;

import com.pollex.pam.domain.Appointment;
import com.pollex.pam.domain.AppointmentCustomerView;
import com.pollex.pam.domain.Consultant;
import com.pollex.pam.domain.CustomFavoriteConsultant;
import com.pollex.pam.domain.User;
import com.pollex.pam.enums.ContactStatusEnum;
import com.pollex.pam.repository.AppointmentCustomerViewRepository;
import com.pollex.pam.repository.ConsultantRepository;
import com.pollex.pam.repository.CustomFavoriteConsultantRepository;
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.AppointmentMapper;
import com.pollex.pam.service.mapper.ConsultantMapper;
import com.pollex.pam.web.rest.errors.ConsultantNotFoundException;
import com.pollex.pam.web.rest.errors.NotLoginException;
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.Collections;
import java.util.List;
import java.util.stream.Collectors;

@Service
public class ConsultantService {

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

    private final ConsultantRepository consultantRepository;
    private final CustomFavoriteConsultantRepository customFavoriteConsultantRepository;
    private final ConsultantMapper consultantMapper;
    private final UserService userService;
    
    @Autowired
    AppointmentService appointmentService;
    
    @Autowired
    AppointmentCustomerViewRepository appointmentCustomerViewRepository;
    
    @Autowired
    AppointmentCustomerViewMapper appointmentCustomerViewMapper;
    
    public ConsultantService(
        ConsultantRepository consultantRepository,
        CustomFavoriteConsultantRepository customFavoriteConsultantRepository,
        ConsultantMapper consultantMapper,
        UserService userService
    ) {
        this.consultantRepository = consultantRepository;
        this.customFavoriteConsultantRepository = customFavoriteConsultantRepository;
        this.consultantMapper = consultantMapper;
        this.userService = userService;
    }

    public List<ConsultantDTO> getMyConsultantList() {
        User user = userService.getUserWithAuthorities().orElseThrow(NotLoginException::new);
        return customFavoriteConsultantRepository.findAllByCustomId(user.getId())
            .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.findFirstByAgentNo(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);
        User user = userService.getUserWithAuthorities().orElseThrow(NotLoginException::new);

        consultants.forEach(consultant -> {
            boolean isConsultantInList = customFavoriteConsultantRepository.findOneByCustomIdAndConsultant(user.getId(), consultant).isPresent();

            if(!isConsultantInList) {
                CustomFavoriteConsultant customFavoriteConsultant = new CustomFavoriteConsultant();
                customFavoriteConsultant.setConsultant(consultant);
                customFavoriteConsultant.setCustomId(user.getId());
                customFavoriteConsultant.setContactStatus(ContactStatusEnum.PICKED);

                customFavoriteConsultantRepository.save(customFavoriteConsultant);
            }
            else {
                log.info("The consultant is in custom favorite list! customId = {}, consultant AgentNo = {}", user.getId(), consultant.getAgentNo());
            }
        });

    }

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