v0

internal/services/application_service.go

@@ -0,0 +1,126 @@
+package services
+
+import (
+	"context"
+	"fmt"
+
+	"go.uber.org/zap"
+
+	"github.com/kms/api-key-service/internal/domain"
+	"github.com/kms/api-key-service/internal/repository"
+)
+
+// applicationService implements the ApplicationService interface
+type applicationService struct {
+	appRepo repository.ApplicationRepository
+	logger  *zap.Logger
+}
+
+// NewApplicationService creates a new application service
+func NewApplicationService(appRepo repository.ApplicationRepository, logger *zap.Logger) ApplicationService {
+	return &applicationService{
+		appRepo: appRepo,
+		logger:  logger,
+	}
+}
+
+// Create creates a new application
+func (s *applicationService) Create(ctx context.Context, req *domain.CreateApplicationRequest, userID string) (*domain.Application, error) {
+	s.logger.Info("Creating application", zap.String("app_id", req.AppID), zap.String("user_id", userID))
+
+	// TODO: Add permission validation
+	// TODO: Add input validation using validator
+
+	app := &domain.Application{
+		AppID:                req.AppID,
+		AppLink:              req.AppLink,
+		Type:                 req.Type,
+		CallbackURL:          req.CallbackURL,
+		HMACKey:              generateHMACKey(), // TODO: Use proper key generation
+		TokenRenewalDuration: req.TokenRenewalDuration,
+		MaxTokenDuration:     req.MaxTokenDuration,
+		Owner:                req.Owner,
+	}
+
+	if err := s.appRepo.Create(ctx, app); err != nil {
+		s.logger.Error("Failed to create application", zap.Error(err), zap.String("app_id", req.AppID))
+		return nil, fmt.Errorf("failed to create application: %w", err)
+	}
+
+	s.logger.Info("Application created successfully", zap.String("app_id", app.AppID))
+	return app, nil
+}
+
+// GetByID retrieves an application by its ID
+func (s *applicationService) GetByID(ctx context.Context, appID string) (*domain.Application, error) {
+	s.logger.Debug("Getting application by ID", zap.String("app_id", appID))
+
+	app, err := s.appRepo.GetByID(ctx, appID)
+	if err != nil {
+		s.logger.Error("Failed to get application", zap.Error(err), zap.String("app_id", appID))
+		return nil, fmt.Errorf("failed to get application: %w", err)
+	}
+
+	return app, nil
+}
+
+// List retrieves applications with pagination
+func (s *applicationService) List(ctx context.Context, limit, offset int) ([]*domain.Application, error) {
+	s.logger.Debug("Listing applications", zap.Int("limit", limit), zap.Int("offset", offset))
+
+	if limit <= 0 {
+		limit = 50 // Default limit
+	}
+	if limit > 100 {
+		limit = 100 // Max limit
+	}
+
+	apps, err := s.appRepo.List(ctx, limit, offset)
+	if err != nil {
+		s.logger.Error("Failed to list applications", zap.Error(err))
+		return nil, fmt.Errorf("failed to list applications: %w", err)
+	}
+
+	s.logger.Debug("Listed applications", zap.Int("count", len(apps)))
+	return apps, nil
+}
+
+// Update updates an existing application
+func (s *applicationService) Update(ctx context.Context, appID string, updates *domain.UpdateApplicationRequest, userID string) (*domain.Application, error) {
+	s.logger.Info("Updating application", zap.String("app_id", appID), zap.String("user_id", userID))
+
+	// TODO: Add permission validation
+	// TODO: Add input validation
+
+	app, err := s.appRepo.Update(ctx, appID, updates)
+	if err != nil {
+		s.logger.Error("Failed to update application", zap.Error(err), zap.String("app_id", appID))
+		return nil, fmt.Errorf("failed to update application: %w", err)
+	}
+
+	s.logger.Info("Application updated successfully", zap.String("app_id", appID))
+	return app, nil
+}
+
+// Delete deletes an application
+func (s *applicationService) Delete(ctx context.Context, appID string, userID string) error {
+	s.logger.Info("Deleting application", zap.String("app_id", appID), zap.String("user_id", userID))
+
+	// TODO: Add permission validation
+	// TODO: Check for existing tokens and handle appropriately
+
+	if err := s.appRepo.Delete(ctx, appID); err != nil {
+		s.logger.Error("Failed to delete application", zap.Error(err), zap.String("app_id", appID))
+		return fmt.Errorf("failed to delete application: %w", err)
+	}
+
+	s.logger.Info("Application deleted successfully", zap.String("app_id", appID))
+	return nil
+}
+
+// generateHMACKey generates a secure HMAC key
+// TODO: Replace with proper cryptographic key generation
+func generateHMACKey() string {
+	// This is a placeholder - should use proper crypto/rand
+	return "generated-hmac-key-placeholder"
+}