#!/usr/bin/env python

import argparse
import socket
import sys

from util import add_common_args
from local_thrift import thrift
from thrift.Thrift import TMessageType, TType
from thrift.transport.TSocket import TSocket
from thrift.transport.TTransport import TBufferedTransport, TFramedTransport
from thrift.protocol.TBinaryProtocol import TBinaryProtocol


# THeader stack should accept binary protocol with optionally framed transport
def main(argv):
  p = argparse.ArgumentParser()
  add_common_args(p)
  # Since THeaderTransport acts as framed transport when detected frame, we
  # cannot use --transport=framed as it would result in 2 layered frames.
  p.add_argument('--override-transport')
  args = p.parse_args()
  assert args.protocol == 'header'
  assert args.transport == 'buffered'
  assert not args.ssl

  sock = TSocket(args.host, args.port, socket_family=socket.AF_INET)
  if not args.override_transport or args.override_transport == 'buffered':
    trans = TBufferedTransport(sock)
  elif args.override_transport == 'framed':
    trans = TFramedTransport(sock)
  else:
    raise ValueError('invalid transport')
  trans.open()
  proto = TBinaryProtocol(trans)
  proto.writeMessageBegin('testVoid', TMessageType.CALL, 3)
  proto.writeStructBegin('testVoid_args')
  proto.writeFieldStop()
  proto.writeStructEnd()
  proto.writeMessageEnd()
  trans.flush()

  _, mtype, _ = proto.readMessageBegin()
  assert mtype == TMessageType.REPLY
  proto.readStructBegin()
  _, ftype, _ = proto.readFieldBegin()
  assert ftype == TType.STOP
  proto.readFieldEnd()
  proto.readStructEnd()
  proto.readMessageEnd()

  trans.close()


if __name__ == '__main__':
  sys.exit(main(sys.argv[1:]))