#!/usr/bin/env python3
import sys

oldexcepthook = sys.excepthook
def newexcepthook(type,value,traceback):
	oldexcepthook(type,value,traceback)
	#input("Press ENTER to quit.")
sys.excepthook = newexcepthook

import os
p = os.path.join
pUp = os.path.dirname
s = False
if getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS'):
	s = os.path.realpath(sys.executable)
else:
	s = os.path.realpath(__file__)
sp = pUp(s)

# script start
import subprocess
import socket
import threading
import queue

bufferSize = 50000 # buffer size in bytes
maxAccumulatedData = 50*1000*1000 # How much data can be in an outbound thread's queue at maximum before the connection is closed?
timeout = 15 # timeout in seconds
connection = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

class stdoutThread(threading.Thread):
	def __init__(self):
		threading.Thread.__init__(self)
		self.queue = queue.Queue()
	
	def run(self):
		while True:
			data = self.queue.get(timeout=timeout)
			sys.stdout.buffer.write(data)

class stdinThread(threading.Thread):
	def __init__(self,connection):
		threading.Thread.__init__(self)
		self.queue = queue.Queue()
		self.connection = connection
	
	def run(self):
		try:
			while True:
				accumulatedData = self.queue.qsize() * bufferSize
				print("Accumulated MB: " +str(accumulatedData/1000000))
				
				if accumulatedData > maxAccumulatedData:
					print("Accumulated data limit reached. Closing.")
					self.connection.close()
					self.queue = False
					return
				data = self.queue.get()
				self.connection.sendall(data)
		except:
			self.connection.close()
			self.queue = False
			raise

def listToCommand(lst):
	cmd = ""
	for arg in lst:
		arg = arg.replace("\\","\\\\")
		arg = arg.replace(",","\\,")
		#arg = arg.replace('"','\\"')
		#if " " in arg: arg = '"' +arg+ '"'
		cmd += arg + ","
	
	return cmd[:-1]

def makePayload(lst):
	cmdText = listToCommand(lst)
	cmdBytes = cmdText.encode("utf-8")
	while len(cmdBytes) < 1000:
		cmdBytes += b" "
	return cmdBytes

def main():
	global serverAddr
	serverAddr = sys.argv[1].rsplit(":",1)
	serverAddr[1] = int(serverAddr[1])
	serverAddr = tuple(serverAddr)
	connection.settimeout(timeout)
	connection.connect(serverAddr)
	connection.sendall(makePayload(sys.argv[2:]))
	
	if sys.argv[2] == "watch":
		try:
			stdoutThr = stdoutThread()
			stdoutThr.start()
			while True:
				data = connection.recv(bufferSize)
				if data == b"": return
				stdoutThr.queue.put(data)
		except:
			connection.close()
			raise
	
	if sys.argv[2] == "broadcast":
		try:
			stdinThr = stdinThread(connection)
			stdinThr.start()
			while True:
				data = sys.stdin.buffer.read(bufferSize)
				stdinThr.queue.put(data)
		except:
			connection.close()
			raise

if __name__ == '__main__':
	main()