# /home/Autopartes/pos/services/cfdi_builder.py
"""CFDI 4.0 XML builder — stub for future implementation (Plan 4, Task 2).

Full implementation will build CFDI 4.0 compliant XML for ingreso, egreso,
and pago voucher types using lxml.
"""


def build_ingreso_xml(sale, tenant_config, customer):
    """Build unsigned CFDI 4.0 XML for an ingreso (income) voucher."""
    raise NotImplementedError("cfdi_builder.build_ingreso_xml not yet implemented (Plan 4, Task 2)")


def build_egreso_xml(sale, tenant_config, customer, original_uuid):
    """Build unsigned CFDI 4.0 XML for an egreso (credit note) voucher."""
    raise NotImplementedError("cfdi_builder.build_egreso_xml not yet implemented (Plan 4, Task 2)")


def build_pago_xml(sale, tenant_config, customer, payments):
    """Build unsigned CFDI 4.0 XML for a pago (payment) complement."""
    raise NotImplementedError("cfdi_builder.build_pago_xml not yet implemented (Plan 4, Task 2)")