Update app.py

app.py

@@ -85,6 +85,49 @@ def material_from(text: str) -> str:
     m = re.search(r"(SERIOPLAST.*?RESIN)", text, re.I)
     return m.group(1).strip() if m else ""
 
+# --- (AGGIUNTA) WEIGHT PARSER ----------------------------------------------
+WEIGHT_TOL_RE = re.compile(
+    r"\bWeight\b[^\n\r]{0,15}?([0-9]+(?:[.,][0-9]+)?)\s*(?:±|\+/?-|\+-)\s*([0-9]+(?:[.,][0-9]+)?)\s*(mg|g|kg)?",
+    re.I,
+)
+WEIGHT_SIMPLE_RE = re.compile(
+    r"\bWeight\b[^\n\r]{0,15}?([0-9]+(?:[.,][0-9]+)?)\s*(mg|g|kg)\b",
+    re.I,
+)
+WEIGHT_INLINE_RE = re.compile(
+    r"\b([0-9]+(?:[.,][0-9]+)?)\s*(?:±|\+/?-|\+-)\s*([0-9]+(?:[.,][0-9]+)?)\s*(mg|g|kg)\b",
+    re.I,
+)
+
+def _norm_num(s: str) -> str:
+    return (s or "").replace(",", ".").strip().rstrip(".")
+
+def weight_from(text: str) -> str:
+    # 1) match con tolleranza
+    m = WEIGHT_TOL_RE.search(text or "")
+    if m:
+        val = _norm_num(m.group(1))
+        tol = _norm_num(m.group(2))
+        unit = (m.group(3) or "g").lower()
+        return f"{val} ± {tol} {unit}"
+    # 2) match semplice con unità
+    m = WEIGHT_SIMPLE_RE.search(text or "")
+    if m:
+        val = _norm_num(m.group(1))
+        unit = (m.group(2) or "g").lower()
+        return f"{val} {unit}"
+    # 3) riga per riga per casi OCR
+    for line in (text or "").splitlines():
+        if "weight" in line.lower():
+            m2 = WEIGHT_INLINE_RE.search(line)
+            if m2:
+                val = _norm_num(m2.group(1))
+                tol = _norm_num(m2.group(2))
+                unit = (m2.group(3) or "g").lower()
+                return f"{val} ± {tol} {unit}"
+    return ""
+# ---------------------------------------------------------------------------
+
 # ---------------------  AGGIUNTA RICHIESTA: PIECE da "Packaging Component Type"  ---------------------
 _ALLOWED_PIECES = {
     "ribbon": "ribbon",
@@ -239,13 +282,16 @@ def parse_record(pages: List[str], source_name: str) -> Dict[str, str]:
     gcas  = material_ref_gcas_from(full)
     mfam  = material_family_from(full)
 
+    # (AGGIUNTA) estrai peso
+    wght  = weight_from(full)
+
     return {
         "Piece": piece or "",
         "SKU": sku or "",
         "Title": title or "",
         "Capacity": cap or "",
         "% Recycled": "–",
-        "Weight": "–",
+        "Weight": wght or "–",
         "Color": color or "",
         "Material / Resin": material or "",
         "Class": cls or "",
@@ -313,5 +359,5 @@ with c2:
     bio = io.BytesIO()
     with pd.ExcelWriter(bio, engine="openpyxl") as xw:
         df.to_excel(xw, index=False, sheet_name="data")
-    st.download_button("⬇️ Excel", bio.getvalue(), "table.xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet") 
+    st.download_button("⬇️ Excel", bio.getvalue(), "table.xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")