First commit!

app/services/event_normalizer.rb

@@ -0,0 +1,122 @@
+# frozen_string_literal: true
+
+class EventNormalizer
+  class NormalizationError < StandardError; end
+
+  # Normalize an event by populating all the normalized fields
+  def self.normalize_event!(event)
+    normalizer = new(event)
+    normalizer.normalize!
+    event
+  end
+
+  def initialize(event)
+    @event = event
+  end
+
+  def normalize!
+    return unless @event.present?
+
+    normalize_host
+    normalize_action
+    normalize_method
+    normalize_protocol
+    normalize_path_segments
+  end
+
+  private
+
+  def normalize_host
+    hostname = extract_hostname
+    return unless hostname
+
+    host = RequestHost.find_or_create_host(hostname)
+    host.increment_usage! unless host.new_record?
+    @event.request_host = host
+  end
+
+  def normalize_action
+    raw_action = @event.instance_variable_get(:@raw_action)
+    return unless raw_action.present?
+
+    action_enum = case raw_action.to_s.downcase
+                  when 'allow', 'pass' then :allow
+                  when 'deny', 'block' then :deny
+                  when 'challenge' then :challenge
+                  when 'redirect' then :redirect
+                  else :allow
+                  end
+
+    @event.action = action_enum
+  end
+
+  def normalize_method
+    raw_method = @event.instance_variable_get(:@raw_request_method)
+    return unless raw_method.present?
+
+    method_enum = case raw_method.to_s.upcase
+                  when 'GET' then :get
+                  when 'POST' then :post
+                  when 'PUT' then :put
+                  when 'PATCH' then :patch
+                  when 'DELETE' then :delete
+                  when 'HEAD' then :head
+                  when 'OPTIONS' then :options
+                  else :get
+                  end
+
+    @event.request_method = method_enum
+  end
+
+  def normalize_protocol
+    raw_protocol = @event.instance_variable_get(:@raw_request_protocol)
+    return unless raw_protocol.present?
+
+    # Store the protocol directly (HTTP/1.1, HTTP/2, etc.)
+    # Could normalize to enum if needed, but keeping as string for flexibility
+    @event.request_protocol = raw_protocol
+  end
+
+  def normalize_path_segments
+    segments = @event.path_segments_array
+    return if segments.empty?
+
+    segment_ids = segments.map do |segment|
+      path_segment = PathSegment.find_or_create_segment(segment)
+      path_segment.increment_usage! unless path_segment.new_record?
+      path_segment.id
+    end
+
+    @event.request_segment_ids = segment_ids
+  end
+
+  def extract_hostname
+    # Try to extract hostname from various sources
+    return @event.request_hostname if @event.respond_to?(:request_hostname)
+
+    # Extract from request URL if available
+    if @event.request_url.present?
+      begin
+        uri = URI.parse(@event.request_url)
+        return uri.hostname
+      rescue URI::InvalidURIError
+        nil
+      end
+    end
+
+    # Extract from payload as fallback
+    if @event.payload.present?
+      url = @event.payload.dig("request", "url")
+      if url.present?
+        begin
+          uri = URI.parse(url)
+          return uri.hostname
+        rescue URI::InvalidURIError
+          nil
+        end
+      end
+    end
+
+    nil
+  end
+end