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feat: 实现社区激励金（公户）系统，经济闭环

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- 新增 CommunityFund / FundLog 模型（公户余额单行表 + 6种流水类型）
- 新增 FundRepo 仓储（GetBalance / IncrBalance / CreateLog / ListLogs / WithTx）
- 改造 EnergyService 五个方法：Energize 税收入公户、DeductOnRename/DeductOnDeletePost 入公户、RefundOnRenameReject 从公户支出、AdminAdjust 拆分为 admin_transfer/system_operation
- 新增 ErrInsufficientFund 错误哨兵
- 管理后台新增公户余额展示 + 公户流水页面 + 域能调整资金来源选择
- 新增 energy.css / energy.js 前端交互
- 侧边栏新增公户流水入口
This commit is contained in:
Victor Jay
2026-06-01 15:10:47 +08:00
parent 683c9e02d8
commit 26e557de8a
17 changed files with 1033 additions and 67 deletions
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287
internal/service/energy_service.go
View File

@ -19,6 +19,7 @@ type expAdder interface {
type EnergyService struct {
db *gorm.DB
repo EnergyStore
fundRepo FundStore
expSvc expAdder
notifSvc energyNotifier
}
@ -28,6 +29,16 @@ func NewEnergyService(db *gorm.DB, repo EnergyStore, expSvc expAdder, notifSvc e
return &EnergyService{db: db, repo: repo, expSvc: expSvc, notifSvc: notifSvc}
}
// SetExpAdder 链式注入经验服务（用于赋能获得经验）
func (s *EnergyService) SetExpAdder(svc expAdder) {
s.expSvc = svc
}
// SetFundRepo 链式注入公户仓储
func (s *EnergyService) SetFundRepo(repo FundStore) {
s.fundRepo = repo
}
// EnergyInfo 域能信息（含每日赋能经验状态）
type EnergyInfo struct {
Energy int // 域能余额（乘10存储）
@ -36,11 +47,6 @@ type EnergyInfo struct {
DailyExpCapReached bool // 是否已达上限
}
// SetExpAdder 链式注入经验服务（用于赋能获得经验）
func (s *EnergyService) SetExpAdder(svc expAdder) {
s.expSvc = svc
}
// 域能相关常量（乘10存储，DB值）
const (
EnergyCheckIn = 10 // +1.0 域能
@ -69,6 +75,10 @@ func (s *EnergyService) Energize(energizerID uint, postID uint, amount int) (int
err := s.db.Transaction(func(tx *gorm.DB) error {
txRepo := s.repo.WithTx(tx)
var txFundRepo FundStore
if s.fundRepo != nil {
txFundRepo = s.fundRepo.WithTx(tx)
}
// 1. 检查帖子存在，获取作者
post, err := txRepo.FindPostByID(postID)
@ -156,7 +166,28 @@ func (s *EnergyService) Energize(energizerID uint, postID uint, amount int) (int
return fmt.Errorf("创建被赋能者流水失败: %w", err)
}
// 10. 计算经验值（溢出截断）—— 在事务内读取以保证一致性
// 10. 赋能税收入公户（差价 = amount - receivedAmount）
if txFundRepo != nil {
tax := amount - receivedAmount
if tax > 0 {
if err := txFundRepo.IncrBalance(tax); err != nil {
return fmt.Errorf("公户入账失败: %w", err)
}
taxDisplay := float64(tax) / 10
fundLog := &model.FundLog{
Amount: tax,
Type: model.FundTypeEnergizeTax,
RelatedType: "post",
RelatedID: postID,
Description: fmt.Sprintf("赋能文章 #%d 税收 %.1f 域能，赋能者 uid=%d", postID, taxDisplay, energizerID),
}
if err := txFundRepo.CreateLog(fundLog); err != nil {
return fmt.Errorf("创建公户流水失败: %w", err)
}
}
}
// 11. 计算经验值（溢出截断）—— 在事务内读取以保证一致性
loc, _ := time.LoadLocation("Asia/Shanghai")
now := time.Now().In(loc)
today := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, loc)
@ -188,9 +219,7 @@ func (s *EnergyService) Energize(energizerID uint, postID uint, amount int) (int
return 0, err
}
// 11. 事务提交后，在事务外增加经验 + 更新每日汇总
// 必须在事务外执行：LevelService.AddExp 也操作 users 表，
// 若在事务内调用会造成连接池不同连接间行锁死锁。
// 12. 事务提交后，在事务外增加经验 + 更新每日汇总
if needExpUpdate {
if s.expSvc != nil {
if _, _, err := s.expSvc.AddExp(energizerID, expGained); err != nil {
@ -226,46 +255,91 @@ func (s *EnergyService) CheckInEnergy(userID uint) error {
}
// DeductOnRename 改名扣域能（首次改名免费，不调用此方法）
// 事务包裹：扣用户域能 + 入公户 + 写流水
func (s *EnergyService) DeductOnRename(userID uint) error {
// 检查域能余额（非 owner 需 ≥ 0）
user, err := s.repo.FindUserByID(userID)
if err != nil {
return fmt.Errorf("查询用户失败: %w", err)
}
if user.Role != model.RoleOwner && user.Energy+EnergyRename < 0 {
return common.ErrInsufficientEnergy
}
return s.db.Transaction(func(tx *gorm.DB) error {
txRepo := s.repo.WithTx(tx)
if err := s.repo.AddEnergy(userID, EnergyRename); err != nil {
return fmt.Errorf("扣减改名域能失败: %w", err)
}
// 检查域能余额（非 owner 需 ≥ 0）
user, err := txRepo.FindUserByID(userID)
if err != nil {
return fmt.Errorf("查询用户失败: %w", err)
}
if user.Role != model.RoleOwner && user.Energy+EnergyRename < 0 {
return common.ErrInsufficientEnergy
}
log := &model.EnergyLog{
UserID: userID,
Amount: EnergyRename,
Type: model.EnergyTypeRename,
Description: "改名消耗 6.0 域能",
}
return s.repo.CreateEnergyLog(log)
if err := txRepo.AddEnergy(userID, EnergyRename); err != nil {
return fmt.Errorf("扣减改名域能失败: %w", err)
}
// 公户入账
if s.fundRepo != nil {
txFundRepo := s.fundRepo.WithTx(tx)
if err := txFundRepo.IncrBalance(-EnergyRename); err != nil { // EnergyRename = -60，入公户 +60
return fmt.Errorf("公户入账失败: %w", err)
}
fundLog := &model.FundLog{
Amount: -EnergyRename,
Type: model.FundTypeRenameDeduction,
RelatedType: "user",
RelatedID: userID,
Description: fmt.Sprintf("用户 uid=%d 改名消耗 6.0 域能", userID),
}
if err := txFundRepo.CreateLog(fundLog); err != nil {
return fmt.Errorf("创建公户流水失败: %w", err)
}
}
log := &model.EnergyLog{
UserID: userID,
Amount: EnergyRename,
Type: model.EnergyTypeRename,
Description: "改名消耗 6.0 域能",
}
return txRepo.CreateEnergyLog(log)
})
}
// RefundOnRenameReject 改名审核被拒，返还域能
// RefundOnRenameReject 改名审核被拒，从公户返还域能
func (s *EnergyService) RefundOnRenameReject(userID uint) error {
if err := s.repo.AddEnergy(userID, EnergyRenameRefund); err != nil {
return fmt.Errorf("返还改名域能失败: %w", err)
}
return s.db.Transaction(func(tx *gorm.DB) error {
txRepo := s.repo.WithTx(tx)
log := &model.EnergyLog{
UserID: userID,
Amount: EnergyRenameRefund,
Type: model.EnergyTypeRenameRefund,
Description: "改名审核被拒，返还 6.0 域能",
}
return s.repo.CreateEnergyLog(log)
// 从公户支出（允许透支）
if s.fundRepo != nil {
txFundRepo := s.fundRepo.WithTx(tx)
if err := txFundRepo.IncrBalance(-EnergyRenameRefund); err != nil {
return fmt.Errorf("公户出账失败: %w", err)
}
fundLog := &model.FundLog{
Amount: -EnergyRenameRefund,
Type: model.FundTypeRenameRefund,
RelatedType: "user",
RelatedID: userID,
Description: fmt.Sprintf("用户 uid=%d 改名审核被拒，返还 6.0 域能", userID),
}
if err := txFundRepo.CreateLog(fundLog); err != nil {
return fmt.Errorf("创建公户流水失败: %w", err)
}
}
if err := txRepo.AddEnergy(userID, EnergyRenameRefund); err != nil {
return fmt.Errorf("返还改名域能失败: %w", err)
}
log := &model.EnergyLog{
UserID: userID,
Amount: EnergyRenameRefund,
Type: model.EnergyTypeRenameRefund,
Description: "改名审核被拒，返还 6.0 域能",
}
return txRepo.CreateEnergyLog(log)
})
}
// DeductOnDeletePost 删稿扣域能（扣文章作者的域能，无视负数）
// 事务包裹：确保扣域能 + 写流水原子性
// 事务包裹：扣用户域能 + 入公户 + 写流水
func (s *EnergyService) DeductOnDeletePost(authorUserID uint, postID uint) error {
return s.db.Transaction(func(tx *gorm.DB) error {
txRepo := s.repo.WithTx(tx)
@ -274,6 +348,24 @@ func (s *EnergyService) DeductOnDeletePost(authorUserID uint, postID uint) error
return fmt.Errorf("扣减删稿域能失败: %w", err)
}
// 公户入账
if s.fundRepo != nil {
txFundRepo := s.fundRepo.WithTx(tx)
if err := txFundRepo.IncrBalance(-EnergyDeletePost); err != nil { // EnergyDeletePost = -20，入公户 +20
return fmt.Errorf("公户入账失败: %w", err)
}
fundLog := &model.FundLog{
Amount: -EnergyDeletePost,
Type: model.FundTypeDeletePost,
RelatedType: "post",
RelatedID: postID,
Description: fmt.Sprintf("用户 uid=%d 删除文章 #%d 消耗 2.0 域能", authorUserID, postID),
}
if err := txFundRepo.CreateLog(fundLog); err != nil {
return fmt.Errorf("创建公户流水失败: %w", err)
}
}
log := &model.EnergyLog{
UserID: authorUserID,
Amount: EnergyDeletePost,
@ -287,25 +379,87 @@ func (s *EnergyService) DeductOnDeletePost(authorUserID uint, postID uint) error
}
// AdminAdjust 后台调整用户域能
func (s *EnergyService) AdminAdjust(operatorUID uint, userIDs []uint, amount int, description string) error {
for _, uid := range userIDs {
if err := s.repo.AddEnergy(uid, amount); err != nil {
return fmt.Errorf("调整用户 %d 域能失败: %w", uid, err)
}
// mode: "admin_transfer"（受公户余额约束）| "system_operation"（不受约束）
func (s *EnergyService) AdminAdjust(operatorUID uint, userIDs []uint, amount int, description string, mode string) error {
if mode == "" {
mode = model.FundTypeAdminTransfer
}
opUID := operatorUID
log := &model.EnergyLog{
UserID: uid,
Amount: amount,
Type: model.EnergyTypeAdminAdjust,
Description: description,
OperatorUID: &opUID,
// admin_transfer 出账时检查公户余额
if mode == model.FundTypeAdminTransfer && amount > 0 && s.fundRepo != nil {
balance, err := s.fundRepo.GetBalance()
if err != nil {
return fmt.Errorf("查询公户余额失败: %w", err)
}
if err := s.repo.CreateEnergyLog(log); err != nil {
return fmt.Errorf("创建调整流水失败: %w", err)
if balance < amount {
return common.ErrInsufficientFund
}
}
return nil
return s.db.Transaction(func(tx *gorm.DB) error {
txRepo := s.repo.WithTx(tx)
var txFundRepo FundStore
if s.fundRepo != nil {
txFundRepo = s.fundRepo.WithTx(tx)
}
// 公户余额调整（给用户 energy=+amount → 公户 -amount，扣用户 energy=-amount → 公户 +amount）
if txFundRepo != nil {
if err := txFundRepo.IncrBalance(-amount); err != nil {
return fmt.Errorf("公户余额调整失败: %w", err)
}
}
for _, uid := range userIDs {
if err := txRepo.AddEnergy(uid, amount); err != nil {
return fmt.Errorf("调整用户 %d 域能失败: %w", uid, err)
}
opUID := operatorUID
energyLog := &model.EnergyLog{
UserID: uid,
Amount: amount,
Type: model.EnergyTypeAdminAdjust,
Description: description,
OperatorUID: &opUID,
}
if err := txRepo.CreateEnergyLog(energyLog); err != nil {
return fmt.Errorf("创建调整流水失败: %w", err)
}
}
// 公户流水
if txFundRepo != nil {
amountDisplay := float64(amount) / 10
fundLog := &model.FundLog{
Amount: -amount,
Type: mode,
OperatorUID: &operatorUID,
Description: fmt.Sprintf("%s：调整用户域能 %.1f，说明：%s", getFundModeName(mode), amountDisplay, description),
}
if len(userIDs) > 0 {
fundLog.RelatedType = "user"
fundLog.RelatedID = userIDs[0]
}
if err := txFundRepo.CreateLog(fundLog); err != nil {
return fmt.Errorf("创建公户流水失败: %w", err)
}
}
return nil
})
}
// getFundModeName 返回操作模式中文名
func getFundModeName(mode string) string {
switch mode {
case model.FundTypeAdminTransfer:
return "管理转出"
case model.FundTypeSystemOperation:
return "系统操作"
default:
return "后台调整"
}
}
// GetEnergyInfo 获取用户域能余额和每日赋能经验状态
@ -359,3 +513,28 @@ func (s *EnergyService) GetAdminEnergyLogs(energyType string, page, pageSize int
p.DefaultPagination()
return s.repo.ListAllEnergyLogs(energyType, p.Offset(), p.PageSize)
}
// GetFundBalance 获取公户余额
func (s *EnergyService) GetFundBalance() (int, error) {
if s.fundRepo == nil {
return 0, nil
}
return s.fundRepo.GetBalance()
}
// GetFundLogs 分页查询公户流水
func (s *EnergyService) GetFundLogs(logType string, page, pageSize int) ([]model.FundLog, int64, error) {
p := common.Pagination{Page: page, PageSize: pageSize}
p.DefaultPagination()
if s.fundRepo == nil {
return []model.FundLog{}, 0, nil
}
logs, total, err := s.fundRepo.ListLogs(logType, p.Offset(), p.PageSize)
if err != nil {
return nil, 0, err
}
if logs == nil {
logs = []model.FundLog{}
}
return logs, total, nil
}

9
internal/service/repository.go
View File

@ -111,6 +111,15 @@ type EnergyStore interface {
// energyStore 向后兼容别名
type energyStore = EnergyStore
// FundStore 公户仓储接口（ISP）
type FundStore interface {
GetBalance() (int, error)
IncrBalance(amount int) error
CreateLog(log *model.FundLog) error
ListLogs(logType string, offset, limit int) ([]model.FundLog, int64, error)
WithTx(tx *gorm.DB) FundStore
}
// energyNotifier EnergyService 所需的通知接口（ISP）
type energyNotifier interface {
Create(userID uint, notifyType, title, content string, relatedID, commentID *uint) error