#!/usr/bin/python

from __future__ import print_function
import io
import json
import socket
import subprocess
import time
import StringIO

class AlfredParser:
	prefix = "ffpb.nodes."
	target_host = "fdca:ffee:ff12:a254::da7a"
	target_port = 2003
	alfred_dump = '/www/alfred.json'
	whitelist = [ "24:a4:3c:f8:5e:fa", "24:a4:3c:f8:5e:db", "24:a4:3c:d9:4f:69", "24:a4:3c:a3:67:f0", "24:a4:3c:a3:68:07", "24:a4:3c:d2:21:d5" ]

	def execute(self):
		rawdata = subprocess.check_output(['alfred-json', '-z', '-r', '158'])

		data = json.loads(rawdata)
		ts = int(time.time())

		if not self.alfred_dump is None:
			f = io.open(self.alfred_dump, 'w')
			f.write(unicode(rawdata))
			f.close()

		output = StringIO.StringIO()
		for nodeid in data:
			if (not self.whitelist is None) and (not nodeid in self.whitelist):
				#print("Skipping node {0} as it is not in the configured whitelist.".format(nodeid))
				continue


			nodeinfo = data[nodeid]
			nodestats = None
			if "statistics" in nodeinfo: nodestats = nodeinfo["statistics"]

			if not nodestats is None:
				print(self.prefix, nodeid, ".uptime", " ", int(float(nodestats["uptime"])), " ", ts, sep='', file=output)
				traffic = None
				if "traffic" in nodestats: traffic = nodestats["traffic"]
				if not traffic is None:
					print(self.prefix, nodeid, ".rxbytes", " ", int(traffic["rx"]["bytes"]), " ", ts, sep='', file=output)
					print(self.prefix, nodeid, ".rxpackets", " ", int(traffic["rx"]["packets"]), " ", ts, sep='', file=output)
					print(self.prefix, nodeid, ".txbytes", " ", int(traffic["tx"]["bytes"]), " ", ts, sep='', file=output)
					print(self.prefix, nodeid, ".txpackets", " ", int(traffic["tx"]["packets"]), " ", ts, sep='', file=output)
			else:
				print("Node {0} does not provide statistics information.".format(nodeid))

		s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
		s.connect((self.target_host, self.target_port))
		all_output = output.getvalue()
		print(all_output)
		s.sendall(all_output)
		s.shutdown(socket.SHUT_WR)
		s.close()

		output.close()

if __name__ == "__main__":
	a = AlfredParser()
	a.execute()