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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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#This file is part of Beremiz, a Integrated Development Environment for

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#programming IEC 61131-3 automates supporting plcopen standard and CanFestival. 

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#

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#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

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#

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#See COPYING file for copyrights details.

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#

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#This library is free software; you can redistribute it and/or

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#modify it under the terms of the GNU General Public

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#License as published by the Free Software Foundation; either

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#version 2.1 of the License, or (at your option) any later version.

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#

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#This library is distributed in the hope that it will be useful,

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#but WITHOUT ANY WARRANTY; without even the implied warranty of

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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

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#General Public License for more details.

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#

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#You should have received a copy of the GNU General Public

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#License along with this library; if not, write to the Free Software

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#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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import os, sys, getopt, socket

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def usage():

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    print """

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Usage of Beremiz PLC execution service :\n

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%s {[-a ip] [-d path] [-p port]|-h|--help}

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           -a, --address            - authorized ip to connect (x.x.x.x)

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           -d, --directory path     - set the working directory

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           -p, --port port number   - set the port number

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           -h, --help               - print this help text and quit

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"""%sys.argv[0]

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try:

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    opts, args = getopt.getopt(sys.argv[1:], "a:d:p:h", ["directory=", "port=", "help"])

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except getopt.GetoptError, err:

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    # print help information and exit:

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    print str(err) # will print something like "option -a not recognized"

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    usage()

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    sys.exit(2)

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# default values

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WorkingDir = os.getcwd()

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ip = ""

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port = 3000

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for o, a in opts:

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    if o in ("-h", "--help"):

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        usage()

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        sys.exit()

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    elif o in ("-a", "--address"):

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        if len(a.split(".")) == 4 or a == "localhost":

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            ip = a

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    elif o in ("-d", "--directory"):

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        # overwrite default working directory

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        WorkingDir = a

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    elif o in ("-p", "--port"):

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        # port: port that the service runs on

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        port = int(a)

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    else:

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        usage()

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        sys.exit()

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from runtime import PLCObject, ServicePublisher

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import Pyro.core as pyro

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if not os.path.isdir(WorkingDir):

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    os.mkdir(WorkingDir)

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# type: fully qualified service type name

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type = '_PYRO._tcp.local.'

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# name: fully qualified service name

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name = 'First test.%s'%(type)

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# address: IP address as unsigned short, network byte order

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def gethostaddr(dst = '224.0.1.41'):

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    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

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    try:

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        s.connect((dst, 7))

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        (host, port) = s.getsockname()

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        s.close()

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        if host != '0.0.0.0':

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            return host

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    except error:

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        pass

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    return socket.gethostbyname(socket.gethostname())

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# properties: dictionary of properties (or a string holding the bytes for the text field)

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serviceproperties = {'description':'Remote control for PLC'}

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pyro.initServer()

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daemon=pyro.Daemon(host=ip, port=port)

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uri = daemon.connect(PLCObject(WorkingDir, daemon),"PLCObject")

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print "The daemon runs on port :",daemon.port

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print "The object's uri is :",uri

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print "The working directory :",WorkingDir

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# Configure and publish service

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daemon.requestLoop()