新增财务仪表盘并统一金额到角

backend/internal/modules/adminfinance/service.go

@@ -0,0 +1,36 @@
+package adminfinance
+
+import "errors"
+
+var ErrDependencyUnavailable = errors.New("dependency unavailable")
+
+type Service struct {
+	repo *Repository
+}
+
+func NewService(repo *Repository) *Service {
+	return &Service{repo: repo}
+}
+
+func (s *Service) Dashboard(query DashboardQuery) (*DashboardDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	return s.repo.Dashboard(query)
+}
+
+func (s *Service) Details(query DetailQuery) (*PaginatedResult, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	if query.Page < 1 {
+		query.Page = 1
+	}
+	if query.PageSize < 1 {
+		query.PageSize = 20
+	}
+	if query.PageSize > 100 {
+		query.PageSize = 100
+	}
+	return s.repo.Details(query)
+}