ACW-80: fixing empty alias in entity nodes

src/models/graph_models.py

@@ -1,3 +1,4 @@
+import re
 from typing import Any, Dict, List, Literal, Optional
 
 from pydantic import BaseModel, ConfigDict, Field
@@ -19,6 +20,34 @@ class Entity(BaseModel):
 
     model_config = ConfigDict(extra="allow")
 
+    def model_post_init(self, __context: Any) -> None:
+        if self.label:
+            new_alias_name = " ".join(
+                word.lower() for word in re.split(r"(?=[A-Z])", self.label) if word
+            )
+
+            existing_alias = next((a for a in self.aliases if a.name == new_alias_name), None)
+
+            if not existing_alias:
+                source_urls_val = self.properties.get("sourceUrls", "")
+                if isinstance(source_urls_val, list):
+                    new_urls = [
+                        url.strip()
+                        for url in source_urls_val
+                        if isinstance(url, str) and url.strip()
+                    ]
+                elif isinstance(source_urls_val, str):
+                    new_urls = (
+                        [url.strip() for url in source_urls_val.split(",") if url.strip()]
+                        if source_urls_val
+                        else []
+                    )
+                else:
+                    new_urls = []
+
+                new_alias = Alias(name=new_alias_name, source_files=new_urls)
+                self.aliases.append(new_alias)
+
 
 class Relationship(BaseModel):
     type: str