package com.bruce.sams.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.bruce.sams.common.enums.RegistrationRole;
import com.bruce.sams.common.enums.RegistrationStatus;
import com.bruce.sams.domain.ams.Registration;
import com.bruce.sams.mapper.RegistrationMapper;
import com.bruce.sams.service.RegistrationService;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;

/**
 * 活动报名服务实现类
 * @author bruce
 * @description 针对表【ams_registration(活动报名表)】的数据库操作Service实现
 * @createDate 2025-02-20 15:08:53
 */
@Service
public class RegistrationServiceImpl extends ServiceImpl<RegistrationMapper, Registration> implements RegistrationService {

    /**
     * 用户报名活动
     * @param actId 活动ID
     * @param userId 用户ID
     */
    @Override
    public void register(Long actId, Long userId) {
        Registration registration = new Registration();
        registration.setActId(actId);
        registration.setUserId(userId);
        registration.setRole(RegistrationRole.PARTICIPANT);
        registration.setStatus(RegistrationStatus.REGISTERED);
        registration.setRegisterTime(new Date(System.currentTimeMillis()));

        this.save(registration);
    }

    /**
     * 用户取消报名
     * @param actId 活动ID
     * @param userId 用户ID
     */
    @Override
    public void cancelRegistration(Long actId, Long userId) {
        LambdaQueryWrapper<Registration> query = new LambdaQueryWrapper<>();
        query.eq(Registration::getActId, actId).eq(Registration::getUserId, userId);
        Registration registration = this.getOne(query);
        if (registration != null) {
            registration.setStatus(RegistrationStatus.CANCELLED);
            this.updateById(registration);
        }
    }

    /**
     * 用户签到活动
     * @param actId 活动ID
     * @param userId 用户ID
     */
    @Override
    public void attendActivity(Long actId, Long userId) {
        LambdaQueryWrapper<Registration> query = new LambdaQueryWrapper<>();
        query.eq(Registration::getActId, actId).eq(Registration::getUserId, userId);
        Registration registration = this.getOne(query);
        if (registration != null && registration.getStatus() == RegistrationStatus.REGISTERED) {
            registration.setStatus(RegistrationStatus.ATTENDED);
            registration.setAttendTime(new Date(System.currentTimeMillis()));
            this.updateById(registration);
        }
    }

    /**
     * 获取用户报名的所有活动
     * @param userId 用户ID
     * @return 报名列表
     */
    @Override
    public List<Registration> listMyRegistrations(Long userId) {
        return this.lambdaQuery().eq(Registration::getUserId, userId).list();
    }

    /**
     * 获取某个活动的所有报名信息
     * @param actId 活动ID
     * @return 报名列表
     */
    @Override
    public List<Registration> listRegistrationsForActivity(Long actId) {
        return this.lambdaQuery().eq(Registration::getActId, actId).list();
    }
}