package com.talentcard.server.talentcard;

import com.talentcard.server.common.BusinessException;
import com.talentcard.server.common.ErrorCode;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class TalentCardService {

	private final TalentCardRepository talentCardRepository;

	public TalentCardService(TalentCardRepository talentCardRepository) {
		this.talentCardRepository = talentCardRepository;
	}

	@Transactional
	public TalentCardResponse create(TalentCardRequest request) {
		if (talentCardRepository.existsByCardNo(request.cardNo())) {
			throw new BusinessException(ErrorCode.CONFLICT, "人才卡号已存在");
		}

		TalentCard talentCard = new TalentCard(
				request.talentId(),
				request.cardNo(),
				defaultCardType(request.cardType()),
				request.cardLevel()
		);
		return TalentCardResponse.from(talentCardRepository.save(talentCard));
	}

	@Transactional(readOnly = true)
	public TalentCardResponse getById(Long id) {
		return talentCardRepository.findById(id)
				.map(TalentCardResponse::from)
				.orElseThrow(() -> new BusinessException(ErrorCode.NOT_FOUND, "人才卡不存在"));
	}

	@Transactional(readOnly = true)
	public Page<TalentCardResponse> page(Pageable pageable) {
		return talentCardRepository.findAll(pageable).map(TalentCardResponse::from);
	}

	private String defaultCardType(String cardType) {
		return cardType == null || cardType.isBlank() ? "PERSONAL" : cardType;
	}
}