#!/usr/bin/python3.6

import argparse
import os
import sys

try:
    from rosidl_generator_rs import generate_rs
except ImportError:
    # modifying sys.path and importing the Rust package with the same
    # name as this script does not work on Windows
    rosidl_generator_rs_root = os.path.dirname(os.path.dirname(__file__))
    rosidl_generator_rs_module = os.path.join(
        rosidl_generator_rs_root, 'rosidl_generator_rs', '__init__.py')
    if not os.path.exists(rosidl_generator_rs_module):
        raise
    from importlib.machinery import SourceFileLoader

    loader = SourceFileLoader('rosidl_generator_rs', rosidl_generator_rs_module)
    rosidl_generator_rs = loader.load_module()
    generate_rs = rosidl_generator_rs.generate_rs


def main(argv=sys.argv[1:]):
    parser = argparse.ArgumentParser(description='Generate the Rust ROS interfaces.')
    parser.add_argument(
        '--generator-arguments-file',
        required=True,
        help='The location of the file containing the generator arguments')
    parser.add_argument(
        '--typesupport-impls',
        required=True,
        help='All the available typesupport implementations')
    args = parser.parse_args(argv)

    return generate_rs(
        args.generator_arguments_file,
        args.typesupport_impls,
    )


if __name__ == '__main__':
    sys.exit(main())
