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import argparse

from app import app


def main():
    parser = argparse.ArgumentParser(
        description='Sanic test server',
        formatter_class=argparse.ArgumentDefaultsHelpFormatter
    )
    parser.add_argument('--host', dest='host', default='0.0.0.0')
    parser.add_argument('--port', dest='port', type=int, default=8600)
    parser.add_argument('--reload', dest='reload', action='store_true')
    parser.add_argument('--shell', dest='shell', action='store_true',
                        help='Launch an ipython shell after server start')
    parser.add_argument('--shell-point', dest='shell_point',
                        default='after_server_start',
                        help='before_server_start | after_server_start')
    args = parser.parse_args()

    if args.reload:
        import hupper
        reloader = hupper.start_reloader('run.main')
        reloader.watch_files([])

    if args.shell:
        @app.listener(args.shell_point)
        async def launch_shell(app, loop):
            import IPython
            IPython.embed()

    app.run(host=args.host, port=args.port)


if __name__ == "__main__":
    main()