Add AllMarkSeen Functionality to Notification System

- Introduced the AllMarkSeen method in the notification service to mark all notifications as seen for a user, enhancing user experience by allowing bulk actions on notifications.
- Implemented the PublicAllMarkSeen handler to handle HTTP requests for marking all notifications as seen, ensuring proper request validation and response handling.
- Updated the notification client and SDK to support the new AllMarkSeen functionality, improving the overall API capabilities.
- Enhanced API documentation with Swagger comments for the new endpoint, ensuring clarity for API consumers.

pkg/notification/client.go

@@ -433,6 +433,65 @@ func (c *Client) MarkSeen(ctx context.Context, notificationID string) (*MarkSeen
 	return &markSeenResp, nil
 }
 
+// MarkSeen marks a notification as seen
+func (c *Client) AllMarkSeen(ctx context.Context, userID string) (*MarkSeenResponse, error) {
+	if c.config.EnableLogging && c.logger != nil {
+		c.logger.Debug("Marking notification as seen", map[string]interface{}{
+			"user_id":  userID,
+			"base_url": c.config.BaseURL,
+		})
+	}
+
+	// Create HTTP request
+	url := fmt.Sprintf("%s/api/v1/notifications/all-seen/%s", c.config.BaseURL, userID)
+	httpReq, err := http.NewRequestWithContext(ctx, "PUT", url, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create HTTP request: %w", err)
+	}
+
+	// Set headers
+	httpReq.Header.Set("Content-Type", "application/json")
+	httpReq.Header.Set("User-Agent", c.config.UserAgent)
+
+	// Send request
+	resp, err := c.httpClient.Do(httpReq)
+	if err != nil {
+		return nil, fmt.Errorf("HTTP request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	// Read response body
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response body: %w", err)
+	}
+
+	// Handle non-2xx status codes
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		// Try to parse error response
+		var errorResp NotificationErrorResponse
+		if json.Unmarshal(body, &errorResp) == nil && errorResp.Error != "" {
+			return nil, MapHTTPError(resp.StatusCode, errorResp.Error)
+		}
+		return nil, MapHTTPError(resp.StatusCode, string(body))
+	}
+
+	// Parse success response
+	var markSeenResp MarkSeenResponse
+	if err := json.Unmarshal(body, &markSeenResp); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal response: %w", err)
+	}
+
+	if c.config.EnableLogging && c.logger != nil {
+		c.logger.Info("Notification marked as seen successfully", map[string]interface{}{
+			"user_id": userID,
+			"status":  markSeenResp.Status,
+		})
+	}
+
+	return &markSeenResp, nil
+}
+
 // shouldRetry determines if a request should be retried based on the error
 func (c *Client) shouldRetry(err error) bool {
 	switch e := err.(type) {

pkg/notification/interfaces.go

@@ -30,6 +30,9 @@ type NotificationService interface {
 	// MarkSeen marks a notification as seen
 	MarkSeen(ctx context.Context, notificationID string) (*MarkSeenResponse, error)
 
+	// AllMarkSeen marks all notifications as seen for a user
+	AllMarkSeen(ctx context.Context, userID string) (*MarkSeenResponse, error)
+
 	// Health checks if the notification service is available
 	Health(ctx context.Context) error
 

pkg/notification/sdk.go

@@ -89,6 +89,11 @@ func (s *SDK) MarkSeen(ctx context.Context, notificationID string) (*MarkSeenRes
 	return s.service.MarkSeen(ctx, notificationID)
 }
 
+// AllMarkSeen marks all notifications as seen for a user
+func (s *SDK) AllMarkSeen(ctx context.Context, userID string) (*MarkSeenResponse, error) {
+	return s.service.AllMarkSeen(ctx, userID)
+}
+
 // NewBuilder creates a new notification builder for fluent API usage
 func (s *SDK) NewBuilder() Builder {
 	return s.service.(*Service).NewBuilder()

pkg/notification/service.go

@@ -119,6 +119,11 @@ func (s *Service) MarkSeen(ctx context.Context, notificationID string) (*MarkSee
 	return s.client.MarkSeen(ctx, notificationID)
 }
 
+// AllMarkSeen marks all notifications as seen for a user
+func (s *Service) AllMarkSeen(ctx context.Context, userID string) (*MarkSeenResponse, error) {
+	return s.client.AllMarkSeen(ctx, userID)
+}
+
 // Health checks if the notification service is available
 func (s *Service) Health(ctx context.Context) error {
 	// Create a simple test request to check service availability