naive entity matching

app/models/document_entity.rb

@@ -4,7 +4,37 @@ class DocumentEntity < ApplicationRecord
 
   after_create :match_notebook_page
 
-  def match_notebook_page
-    # TODO: Attempt to link to a Notebook.ai page of the same name
+  # TODO should this be some chain of method aliases maybe? or cached on object?
+  def document_owner
+    document_analysis.document.user
+  end
+
+  def match_notebook_page!
+    matched_entity = document_owner.send(entity_relation).detect do |entity|
+      entity_match?(entity)
+    end
+
+    # If we found a Notebook.ai entity to match to, hurrah!
+    if matched_entity.present?
+      update(
+        entity_type: matched_entity.class.name,
+        entity_id:   matched_entity.id
+      )
+    end
+
+    # Return true/false for whether we found a match
+    matched_entity.present?
+  end
+
+  def entity_relation
+    # 'Character' => 'characters'
+    self.entity_type.downcase.pluralize
+  end
+
+  def entity_match?(entity)
+    return unless entity.respond_to?(:name)
+
+    # TODO: levenshtein distance threshold comparison?
+    entity.name == self.text
   end
 end