import acrort
import acrobind
import http.client
import json

MMS_PORT = 43234


def register(env, server, port=None, user=None, mms_port=None):
    connection = http.client.HTTPConnection('localhost', mms_port if mms_port else MMS_PORT)
    connection.connect()

    headers = {
        'Content-type': 'application/json; charset=utf-8'
    }
    body = {
        'environment': env,
        'address': server,
    }
    if port:
        body['port'] = int(port)
    if user:
        body['login'] = user[0]
        body['password'] = user[1]

    connection.request('POST', '/api/mms/registration', json.dumps(body), headers)
    return connection.getresponse()


def main():
    parser = acrobind.CommandLineParser()
    parser.add_argument('--env', '-e', choices=['onpremise', 'cloud'], help='Environment', required=True)
    parser.add_argument('--server', '-s', help='Registration server address', required=True)
    parser.add_argument('--port', '-p', help='Registration server port')
    parser.add_argument('--user', '-u', nargs=2, metavar=('USERNAME', 'PASSWORD'), help='Credentials for registration service')
    parser.add_argument('--mms-port', '-mp', help='MMS port')
    parser.append_processor(acrobind.OutputArgumentsProcessor())
    
    config = None
    try:
        config = parser.parse_arguments()
    except acrort.Exception as exception:
        error = exception.to_error()
        ret = error.to_exit_code()
        if ret == acrort.common.EXCEPTION_AWARE_RETURN_CODE:
            error.throw()
        return ret

    args = config['args']
    log = acrobind.Output(config, end='\n')
    log.write('Register MMS...')

    result = register(args.env, args.server, args.port, args.user, args.mms_port)

    log.write(str(result.status) + ': ' + result.reason)

if __name__ == '__main__':
    exit(acrobind.interruptable_safe_execute(main))