Update models/batter_zone_model.py

models/batter_zone_model.py

@@ -3,7 +3,8 @@ from __future__ import annotations
 from typing import Any
 
 import pandas as pd
-
+import re
+import unicodedata
 
 PITCH_FAMILY_MAP = {
     "4-seam fastball": "fastball",
@@ -25,6 +26,36 @@ PITCH_FAMILY_MAP = {
     "circle change": "offspeed",
 }
 
+def _normalize_name_text(name: str) -> str:
+    text = str(name or "").strip().lower()
+
+    text = unicodedata.normalize("NFKD", text)
+    text = "".join(ch for ch in text if not unicodedata.combining(ch))
+
+    text = text.replace(",", " ")
+    text = re.sub(r"\s+", " ", text).strip()
+
+    return text
+
+
+def _to_last_first_variants(name: str) -> set[str]:
+    normalized = _normalize_name_text(name)
+    if not normalized:
+        return set()
+
+    parts = normalized.split()
+    variants = {normalized}
+
+    if len(parts) >= 2:
+        first = parts[0]
+        last = parts[-1]
+        middle = " ".join(parts[1:-1]).strip()
+
+        if middle:
+            variants.add(f"{last} {first} {middle}".strip())
+        variants.add(f"{last} {first}".strip())
+
+    return variants
 
 def _safe_mean(series: pd.Series) -> float | None:
     numeric = pd.to_numeric(series, errors="coerce").dropna()