package roomescape.member.business

import org.springframework.data.repository.findByIdOrNull
import org.springframework.http.HttpStatus
import org.springframework.stereotype.Service
import org.springframework.transaction.annotation.Transactional
import roomescape.member.infrastructure.persistence.Member
import roomescape.member.infrastructure.persistence.MemberRepository
import roomescape.member.web.MembersResponse
import roomescape.member.web.toResponse
import roomescape.common.exception.ErrorType
import roomescape.common.exception.RoomescapeException

@Service
@Transactional(readOnly = true)
class MemberService(
        private val memberRepository: MemberRepository
) {
    fun readAllMembers(): MembersResponse = MembersResponse(
            memberRepository.findAll()
                    .map { it.toResponse() }
                    .toList()
    )

    fun findById(memberId: Long): Member = memberRepository.findByIdOrNull(memberId)
            ?: throw RoomescapeException(
                    ErrorType.MEMBER_NOT_FOUND,
                    String.format("[memberId: %d]", memberId),
                    HttpStatus.BAD_REQUEST
            )

    fun findMemberByEmailAndPassword(email: String, password: String): Member =
            memberRepository.findByEmailAndPassword(email, password)
                    ?: throw RoomescapeException(
                            ErrorType.MEMBER_NOT_FOUND,
                            String.format("[email: %s, password: %s]", email, password),
                            HttpStatus.BAD_REQUEST
                    )

    fun existsById(memberId: Long): Boolean = memberRepository.existsById(memberId)

}