handle start date balance

beancount_cde_importer/__init__.py

@@ -126,6 +126,23 @@ class CaisseDEpargneImporter(importer.ImporterProtocol):
         for index, row in enumerate(csv_reader):
             lineno: int = index + 6  # entries start at line 6
             meta = data.new_metadata(file.name, lineno)
+
+            if row[0] == "Solde en début de période":
+                balance = Decimal(row[4].replace(",", "."))
+                directives.append(
+                    data.Balance(
+                        meta=meta,
+                        date=start_date,
+                        account=self.account,
+                        amount=Amount(balance, "EUR"),
+                        tolerance=None,
+                        diff_amount=None,
+                    )
+                )
+
+                # should be the last line anyway
+                continue
+
             transaction_date: date = datetime.strptime(
                 row[INDEX_DATE], "%d/%m/%y"
             ).date()