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MetaLab/internal/service/level_service.go
Victor_Jay e1d7c318ab feat: 实现域能系统
- 新增域能完整分层:EnergyLog/PostEnergizeLog/DailyExpSummary 模型、EnergyRepo、EnergyService、EnergyController/AdminEnergyController
- 支持签到获取域能(+1)、帖子赋能(-1/-2)/被赋能(+1/+2)、改名扣能(-6)/退款(+6)、删帖扣能(-2)
- 赋能单人单帖上限20域能,每日赋能获得经验上限50
- 管理员支持批量调整域能(owner)和查询域能日志(admin)
- LV0用户(exp<1)禁止签到和发帖,余额为负可签到/被赋能/删帖但不能赋能/改名
- 首次改名免费(通过HasCompletedTask判重),改名扣能在提交审核时执行
- 移除导航栏手动签到按钮,签到融入域能系统(自动签到)
- 新增个人中心域能TAB展示余额和流水日志(近7天)
- 新增帖子详情页赋能按钮(轻赋/重赋)
- 管理后台新增域能管理和域能日志页面
2026-06-01 03:32:50 +08:00

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package service
import (
"fmt"
"time"
"metazone.cc/metalab/internal/model"
)
// LevelService 积分与等级业务逻辑
type LevelService struct {
userRepo userLevelStore
checkRepo checkInStore
taskRepo taskStore
notifSvc levelNotifier
energyCheckInSvc energyCheckIner
}
// energyCheckIner LevelService 对域能签到的最小依赖ISP
type energyCheckIner interface {
CheckInEnergy(userID uint) error
}
// NewLevelService 构造函数
func NewLevelService(userRepo userLevelStore, checkRepo checkInStore, taskRepo taskStore, notifSvc levelNotifier) *LevelService {
return &LevelService{userRepo: userRepo, checkRepo: checkRepo, taskRepo: taskRepo, notifSvc: notifSvc}
}
// WithEnergyService 链式注入域能服务(用于签到域能奖励)
func (s *LevelService) WithEnergyService(svc energyCheckIner) *LevelService {
s.energyCheckInSvc = svc
return s
}
// GetLevel 获取用户当前等级、经验值和今日签到状态
func (s *LevelService) GetLevel(userID uint) (level int, exp int, checkedIn bool, err error) {
user, err := s.userRepo.FindByID(userID)
if err != nil {
return 0, 0, false, err
}
loc, _ := time.LoadLocation("Asia/Shanghai")
now := time.Now().In(loc)
today := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, loc)
_, err = s.checkRepo.FindCheckIn(userID, today)
checkedIn = err == nil
return model.GetLevelByExp(user.Exp), user.Exp, checkedIn, nil
}
// AddExp 增加经验值,自动检查升级并发送通知
// 返回:新经验值、是否升级、错误
func (s *LevelService) AddExp(userID uint, delta int) (newExp int, levelUp bool, err error) {
if delta <= 0 {
user, err := s.userRepo.FindByID(userID)
if err != nil {
return 0, false, err
}
return user.Exp, false, nil
}
// 先查旧等级
user, err := s.userRepo.FindByID(userID)
if err != nil {
return 0, false, err
}
oldLevel := model.GetLevelByExp(user.Exp)
// 原子增加经验值
if err := s.userRepo.AddExp(userID, delta); err != nil {
return 0, false, err
}
// 查新等级
user, err = s.userRepo.FindByID(userID)
if err != nil {
return 0, false, err
}
newLevel := model.GetLevelByExp(user.Exp)
if newLevel > oldLevel {
levelUp = true
if s.notifSvc != nil {
_ = s.notifSvc.Create(userID, model.NotifyLevelUp,
"等级提升",
fmt.Sprintf("恭喜您!您的等级已提升至 %s", model.GetLevelName(newLevel)),
nil)
}
}
return user.Exp, levelUp, nil
}
// CheckIn 执行签到(基于 Asia/Shanghai 自然日严格防重)
// 返回:是否成功签到、新经验值、是否升级、错误
// LV0 用户不触发签到
func (s *LevelService) CheckIn(userID uint) (checkedIn bool, newExp int, levelUp bool, err error) {
// LV0 用户不触发签到
user, err := s.userRepo.FindByID(userID)
if err != nil {
return false, 0, false, err
}
if user.Exp < 1 {
return false, user.Exp, false, nil
}
loc, _ := time.LoadLocation("Asia/Shanghai")
now := time.Now().In(loc)
today := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, loc)
// 检查今日是否已签到
_, err = s.checkRepo.FindCheckIn(userID, today)
if err == nil {
// 已签到
return false, user.Exp, false, nil
}
// 创建签到记录
ci := &model.UserCheckIn{
UserID: userID,
Date: today,
}
if err := s.checkRepo.CreateCheckIn(ci); err != nil {
// 唯一索引冲突 → 已签到
return false, user.Exp, false, nil
}
// 增加域能(静默失败不影响签到经验)
if s.energyCheckInSvc != nil {
_ = s.energyCheckInSvc.CheckInEnergy(userID)
}
// 增加经验值
newExp, levelUp, err = s.AddExp(userID, 5)
return true, newExp, levelUp, err
}
// HasCompletedTask 检查用户是否已完成过指定任务(无副作用查询)
func (s *LevelService) HasCompletedTask(userID uint, taskType string) (bool, error) {
return s.taskRepo.HasTask(userID, taskType)
}
// CompleteTask 完成首次任务(严格防重)
// 返回:新经验值、是否升级、错误
func (s *LevelService) CompleteTask(userID uint, taskType string) (newExp int, levelUp bool, err error) {
// 检查是否已完成
_, err = s.taskRepo.FindTask(userID, taskType)
if err == nil {
// 已完成过,不重复奖励
user, _ := s.userRepo.FindByID(userID)
if user != nil {
return user.Exp, false, nil
}
return 0, false, nil
}
// 创建任务记录
task := &model.UserTask{
UserID: userID,
TaskType: taskType,
}
if err := s.taskRepo.CreateTask(task); err != nil {
// 唯一索引冲突 → 已完成
user, _ := s.userRepo.FindByID(userID)
if user != nil {
return user.Exp, false, nil
}
return 0, false, nil
}
// 增加经验值
return s.AddExp(userID, 10)
}