import codecs

from tornado.ioloop import IOLoop

from component import Component


def echo_handler(data):
    return data


def rot13_handler(data):
    data['data'] = codecs.encode(data['data'], 'rot13')
    return data


def change_case_handler(data):
    data['data'] = data['data'].upper() if data['data'].islower() else data['data'].lower()
    return data


def reverse_handler(data):
    data['data'] = data['data'][::-1]
    return data


if __name__ == '__main__':
    anchor_a = Component('anchor_a', change_case_handler)
    anchor_b = Component('anchor_b', rot13_handler)
    anchor_c = Component('anchor_c', reverse_handler)

    IOLoop.instance().start()