Update admin_routes.py

admin_routes.py

@@ -602,6 +602,65 @@ async def get_project_versions(
         "versions": versions
     }
 
+@router.get("/projects/{project_id}/versions/{version1_id}/compare/{version2_id}")
+async def compare_versions(
+    project_id: int,
+    version1_id: int,
+    version2_id: int,
+    username: str = Depends(verify_token)
+):
+    """Compare two versions and return differences"""
+    project = ConfigProvider.get_project(project_id)
+    if not project:
+        raise HTTPException(status_code=404, detail="Project not found")
+    
+    v1 = next((v for v in project.versions if v.id == version1_id), None)
+    v2 = next((v for v in project.versions if v.id == version2_id), None)
+    
+    if not v1 or not v2:
+        raise HTTPException(status_code=404, detail="Version not found")
+    
+    # Deep comparison
+    differences = {
+        'general_prompt': {
+            'changed': v1.general_prompt != v2.general_prompt,
+            'v1': v1.general_prompt,
+            'v2': v2.general_prompt
+        },
+        'intents': {
+            'added': [],
+            'removed': [],
+            'modified': []
+        }
+    }
+    
+    # Compare intents
+    v1_intents = {i.name: i for i in v1.intents}
+    v2_intents = {i.name: i for i in v2.intents}
+    
+    # Find added/removed
+    differences['intents']['added'] = list(set(v2_intents.keys()) - set(v1_intents.keys()))
+    differences['intents']['removed'] = list(set(v1_intents.keys()) - set(v2_intents.keys()))
+    
+    # Find modified
+    for intent_name in set(v1_intents.keys()) & set(v2_intents.keys()):
+        i1, i2 = v1_intents[intent_name], v2_intents[intent_name]
+        if i1.model_dump() != i2.model_dump():
+            differences['intents']['modified'].append({
+                'name': intent_name,
+                'differences': compare_intent_details(i1, i2)
+            })
+    
+    log_info(
+        f"Version comparison performed",
+        user=username,
+        project_id=project_id,
+        version1_id=version1_id,
+        version2_id=version2_id
+    )
+    
+    return differences
+    
 # ===================== API Endpoints =====================
 @router.get("/apis")
 async def list_apis(