package github.benjamin.equipreservebackend.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import github.benjamin.equipreservebackend.constant.ApprovalStep;
import github.benjamin.equipreservebackend.constant.ReservationStatus;
import github.benjamin.equipreservebackend.dto.LeaderApprovalDTO;
import github.benjamin.equipreservebackend.entity.Approval;
import github.benjamin.equipreservebackend.entity.Reservation;
import github.benjamin.equipreservebackend.mapper.ApprovalMapper;
import github.benjamin.equipreservebackend.mapper.ReservationMapper;
import github.benjamin.equipreservebackend.service.ApprovalService;
import github.benjamin.equipreservebackend.vo.LeaderApprovalVO;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;

@Service
@RequiredArgsConstructor
public class ApprovalServiceImpl implements ApprovalService {

    private final ApprovalMapper approvalMapper;

    private final ReservationMapper reservationMapper;

    @Override
    public void addApproval(LeaderApprovalDTO dto) {
        Approval approval = Approval.builder()
                .approverId(dto.getLeaderId())
                .reservationId(dto.getReservationId())
                .step(ApprovalStep.LEADER.getStep())
                .decision(dto.getIsApprove() ? 1 : 0)
                .build();
        approvalMapper.insert(approval);
        reservationMapper.update(new LambdaUpdateWrapper<Reservation>()
                .eq(Reservation::getId, dto.getReservationId())
                .set(Reservation::getStatus, dto.getIsApprove() ? ReservationStatus.PENDING_DEVICE_ADMIN : ReservationStatus.REJECTED));
    }

    @Override
    public IPage<LeaderApprovalVO> getLeaderApproval(Page<Approval> pageRequest, Long userId, String applicantName, String deviceName) {
        return approvalMapper.getLeaderApproval(pageRequest, userId, applicantName, deviceName);
    }
}