#-----------------------------------------------------------------------------
# Copyright (c) 2013-2021, PyInstaller Development Team.
#
# Distributed under the terms of the GNU General Public License (version 2
# or later) with exception for distributing the bootloader.
#
# The full license is in the file COPYING.txt, distributed with this software.
#
# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
#-----------------------------------------------------------------------------

from PyInstaller.utils.hooks import eval_statement

# This is basically a copy of pre_safe_import_module/hook-six.moves.py adopted to setuptools.extern.six resp.
# setuptools._vendor.six. Please see pre_safe_import_module/hook-six.moves.py for documentation.

# Note that the moves are defined in 'setuptools._vendor.six' but are imported under 'setuptools.extern.six'.


def pre_safe_import_module(api):
    real_to_six_module_name = eval_statement(
        """
        try:
            import setuptools._vendor.six as six
        except ImportError:
            import setuptools.extern.six as six

        print('{')

        for moved in six._moved_attributes:
            if isinstance(moved, (six.MovedModule, six.MovedAttribute)):
                print('  %r: %r,' % (moved.mod, 'setuptools.extern.six.moves.' + moved.name))

        print('}')
        """
    )
    if isinstance(real_to_six_module_name, str):
        raise SystemExit("pre-safe-import-module hook failed, needs fixing.")
    api.add_runtime_package(api.module_name)
    for real_module_name, six_module_name in real_to_six_module_name.items():
        api.add_alias_module(real_module_name, six_module_name)
