后端提现增加

2026-06-06 10:08:39 +08:00
parent 082fd908e9
commit 8a2d2f2a18
15 changed files with 2763 additions and 0 deletions
@@ -0,0 +1,107 @@
+package withdrawal
+
+import "errors"
+
+var (
+	ErrDependencyUnavailable = errors.New("dependency unavailable")
+	ErrWithdrawalNotFound    = errors.New("withdrawal not found")
+	ErrInvalidAmount         = errors.New("invalid amount")
+	ErrInsufficientBalance   = errors.New("insufficient balance")
+	ErrMinWithdrawalAmount   = errors.New("amount below minimum withdrawal")
+	ErrMaxWithdrawalAmount   = errors.New("amount exceeds maximum withdrawal")
+	ErrWithdrawalLocked      = errors.New("withdrawal status locked")
+	ErrUnauthorized          = errors.New("unauthorized")
+)
+
+const (
+	MinWithdrawalAmount = 10.0  // 最低提现金额
+	MaxWithdrawalAmount = 5000.0 // 单笔最高提现金额
+	WithdrawalFeeRate   = 0.0    // 手续费率（暂时0%）
+)
+
+type Service struct {
+	repo *Repository
+}
+
+func NewService(repo *Repository) *Service {
+	return &Service{repo: repo}
+}
+
+// 用户端方法
+func (s *Service) Create(userID uint64, req CreateWithdrawalRequest) (*WithdrawalDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+
+	// 验证金额
+	if req.Amount < MinWithdrawalAmount {
+		return nil, ErrMinWithdrawalAmount
+	}
+	if req.Amount > MaxWithdrawalAmount {
+		return nil, ErrMaxWithdrawalAmount
+	}
+
+	return s.repo.Create(userID, req)
+}
+
+func (s *Service) List(userID uint64, page, pageSize int) (*PaginatedResult, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	if page < 1 {
+		page = 1
+	}
+	if pageSize < 1 || pageSize > 100 {
+		pageSize = 20
+	}
+	return s.repo.List(userID, page, pageSize)
+}
+
+func (s *Service) FindByID(userID, id uint64) (*WithdrawalDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	return s.repo.FindByID(userID, id)
+}
+
+func (s *Service) Cancel(userID, id uint64) error {
+	if s.repo == nil {
+		return ErrDependencyUnavailable
+	}
+	return s.repo.Cancel(userID, id)
+}
+
+// 管理员端方法
+func (s *Service) AdminList(query AdminListQuery) (*AdminPaginatedResult, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	if query.Page < 1 {
+		query.Page = 1
+	}
+	if query.Size < 1 || query.Size > 100 {
+		query.Size = 20
+	}
+	return s.repo.AdminList(query)
+}
+
+func (s *Service) AdminFindByID(id uint64) (*WithdrawalDetailDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	return s.repo.AdminFindByID(id)
+}
+
+func (s *Service) Review(adminID, id uint64, req ReviewWithdrawalRequest) (*WithdrawalDetailDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	return s.repo.Review(adminID, id, req)
+}
+
+func (s *Service) ConfirmPayment(adminID, id uint64, req ConfirmPaymentRequest) (*WithdrawalDetailDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	return s.repo.ConfirmPayment(adminID, id, req)
+}