#!/usr/bin/env python3
#
# (c) 2017 Fetal-Neonatal Neuroimaging & Developmental Science Center
#                   Boston Children's Hospital
#
#              http://childrenshospital.org/FNNDSC/
#                        dev@babyMRI.org
#

import sys, os
sys.path.insert(1, os.path.join(os.path.dirname(__file__), '..'))

import  pfcon
import  socket
from    argparse            import RawTextHelpFormatter
from    argparse            import ArgumentParser
#from    distutils.sysconfig import get_python_lib

import  pudb

# The following convolutions are necessary to accommodate both
# development and deployed instances of the 'pfcon.py' module
# and related dependencies.
# sys.path.insert(1, os.path.join(os.path.dirname(__file__), '../pfcon'))
# try:
#     import  pfcon
# except:
#     sys.path.insert(1, os.path.join(get_python_lib(True, True), 'site-packages'))
#     sys.path.insert(1, os.path.join(get_python_lib(True, True), 'site-packages/pfcon'))
#     import  pfcon
from    pfcon._colors             import Colors

str_defIP = [l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")][:1], [[(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0]
str_version = "1.3.11.dev0"
str_desc = Colors.CYAN + """

        __                
       / _|               
 _ __ | |_ ___ ___  _ __  
| '_ \|  _/ __/ _ \| '_ \\ 
| |_) | || (_| (_) | | | |
| .__/|_| \___\___/|_| |_|
| |                       
|_|                       


                            Process-File-CONtroller

           A controller for processes and data -- part of the pf* family.

                              -- version """ + \
             Colors.YELLOW + str_version + Colors.CYAN + """ --

    'pfcon' is a module class and stand-alone app that provides a simple API (both
    programmatically and CLI-driven) to coordinate data transfers and process control
    to remote pfioh (for data transfer) and pman (for process management).
    
""" + \
        Colors.BLINK_RED +  """
        
            +-----------------------------------------------------------+
            | NOTE THAT THIS SERVER DOES NOT CURRENTLY AUTHENTICATE AND |
            | WILL HONOR *ALL* DATA PUSH AND PROCESS CONTROL REQUESTS!  |
            +-----------------------------------------------------------+
              
""" + Colors.NO_COLOUR

parser  = ArgumentParser(description = str_desc, formatter_class = RawTextHelpFormatter)

parser.add_argument(
    '--ip',
    action  = 'store',
    dest    = 'ip',
    default = str_defIP,
    help    = 'IP to connect.'
)
parser.add_argument(
    '--port',
    action  = 'store',
    dest    = 'port',
    default = '5005',
    help    = 'Port to use.'
)
# parser.add_argument(
#     '--pman',
#     action  = 'store',
#     dest    = 'pmanSpec',
#     default = "%s:5010" % str_defIP,
#     help    = 'pman address in <ip>[:<port>] format.'
# )
# parser.add_argument(
#     '--pfioh',
#     action  = 'store',
#     dest    = 'pfiohSpec',
#     default = "%s:5055" % str_defIP,
#     help    = 'pfioh address in <ip>[:<port>] format.'
# )
parser.add_argument(
    '--version',
    help    = 'if specified, print version number',
    dest    = 'b_version',
    action  = 'store_true',
    default = False
)
parser.add_argument(
    '--man',
    help    = 'request help',
    dest    = 'man',
    action  = 'store',
    default = ''
)
parser.add_argument(
    '--forever',
    help    = 'if specified, serve forever, otherwise terminate after single service.',
    dest    = 'b_forever',
    action  = 'store_true',
    default = False
)
parser.add_argument(
    '--test',
    help    = 'if specified, perform internal tests',
    dest    = 'b_test',
    action  = 'store_true',
    default = False
)
parser.add_argument(
    '--httpResponse',
    help    = 'if specified, return HTTP responses',
    dest    = 'b_httpResponse',
    action  = 'store_true',
    default = False
)

args            = parser.parse_args()
args.port       = int(args.port)

if args.b_version:
    print("Version: %s" % str_version)
    sys.exit(1)

# pudb.set_trace()
server          = pfcon.ThreadedHTTPServer((args.ip, args.port), pfcon.StoreHandler)
server.setup(args = vars(args), desc = str_desc, ver = str_version)

if args.b_test:
    handler     = pfcon.StoreHandler(test = True)
    handler.do_POST(
        d_msg = {
            "action": "hello",
            "meta": {
                "askAbout":     "sysinfo",
                "echoBack":     "Hi there!"
                }
            }
    )
    sys.exit(0)

if args.b_forever and not args.b_test:
    server.serve_forever()
else:
    server.handle_request()
