Initial version of the E-Invoice solution of JR IT Services

jr_einvoice/folder_naming.py

@@ -0,0 +1,16 @@
+from __future__ import annotations
+import re
+
+def slugify(value: str, max_len: int = 40) -> str:
+    v = value.strip()
+    v = re.sub(r"\s+", "_", v)
+    v = re.sub(r"[^A-Za-z0-9_\-]+", "", v)
+    v = v.strip("_-")
+    if len(v) > max_len:
+        v = v[:max_len].rstrip("_-")
+    return v or "Kunde"
+
+def default_invoice_folder_name(invoice_number: str, customer: str | None = None) -> str:
+    cust = slugify(customer or "Kunde")
+    inv = slugify(invoice_number, max_len=32)
+    return f"Rechnung_{inv}_{cust}"