#!/usr/bin/env python
#--*-python-*-

if __name__ == '__main__':
    import optparse
    import sys
    import os

    from chroma import view, build, EventViewer
    from chroma import mesh_from_stl
    from chroma.tools import enable_debug_on_crash

    parser = optparse.OptionParser('%prog')
    parser.add_option('--debug', dest='debug', action='store_true', 
                      default=False, help='Start python debugger on exception')
    parser.add_option('-r', '--resolution', dest='resolution',
                      help='specify window resolution', default='1024,576')
    parser.add_option('-i', dest='io_file', default=None)
    options, args = parser.parse_args()

    if len(args) < 1:
        sys.exit(parser.format_help())

    if options.debug:
        enable_debug_on_crash()

    size = [int(s) for s in options.resolution.split(',')]

    if os.path.exists(args[0]) and args[0].lower().endswith(('.stl', '.bz2')):
        obj = mesh_from_stl(args[0])
    else:
        module_name, function_name = args[0].rsplit('.', 1)

        try:
            module = __import__(module_name, fromlist=[function_name])
        except ImportError:
            raise

        obj = getattr(module, function_name)

    if options.io_file is None:
        view(obj, size)
    else:
        geometry = build(obj)
        viewer = EventViewer(geometry, options.io_file, size=size)
        viewer.start()