# -*- coding: utf-8 -*-
"""The small Python 2 / Python 3 bridge.

We do not choose the interpreter -- pyRevit does, from the engine configured
for the host.  This extension was written on Revit 2025 with IronPython 2.7,
but the same folder may be dropped on a machine whose pyRevit is set to
IronPython 3 or CPython 3, where `unicode` and `basestring` are a NameError.

A NameError at module scope takes the whole button down with a traceback the
user cannot act on, so the two names are resolved once, here.

Everything else in this extension is already written in the intersection of
the two languages: no f-strings, no print statement, no implicit integer
division, no pathlib.  Keep it that way and the engine stops mattering.
"""

try:                                  # Python 2 (IronPython 2.7)
    text_type = unicode               # noqa: F821
    string_types = (str, unicode)     # noqa: F821
except NameError:                     # Python 3 (IronPython 3, CPython 3)
    text_type = str
    string_types = (str,)


def as_text(value, encoding='utf-8'):
    """Return value as the interpreter's unicode text type."""
    if isinstance(value, text_type):
        return value
    if isinstance(value, bytes):
        return value.decode(encoding)
    return text_type(value)