Rendering code refactor

folkugat_web/api/tema/index.py

@@ -48,6 +48,12 @@ def contingut(request: Request, logged_in: auth.LoggedIn, tema_id: int):
 
 @router.delete("/api/tema/{tema_id}")
 def delete_tema(_: auth.RequireLogin, tema_id: int):
+    tema = temes_q.get_tema_by_id(tema_id)
+    if not tema:
+        raise HTTPException(status_code=404, detail="Could not find tune")
+    tema = temes_q.tema_compute_stats(tema=tema)
+    if tema.stats:
+        raise HTTPException(status_code=400, detail="Can't delete a tune that has been played in a set!")
     temes_w.delete_tema(tema_id=tema_id)
     files_service.clean_orphan_files()
     return HTMLResponse(headers={