#!/usr/bin/python
# -*- coding: utf-8 -*-

from __future__ import print_function
import socket
import time
import StringIO

class GraphitePush:
    dont_send = False

    prefix = 'ffpb.nodes.'
    target_host = None
    target_port = 2003

    whitelist = None #[ '24a43cf85efa', '24a43cf85edb', '24a43cd94f69', '24a43ca367f0', '24a43ca36807', '24a43cd221d5' ]

    def __init__(self, host, port=2003):
        self.target_host = host
        self.target_port = port

    def __str__(self):
        return 'Graphite at [{0}]:{1} (prefix=\'{2}\', whitelist={3})'.format(
            self.target_host, self.target_port,
            self.prefix, self.whitelist)

    def push(self, data, ts=None):
        if ts is None:
            ts = time.time()
        ts = int(ts)

        output = StringIO.StringIO()
        whitelist = None
        if not self.whitelist is None and len(self.whitelist) > 0:
            whitelist = [x for x in self.whitelist]

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

            nodeinfo = data[nodeid]

            for item in ['uptime']:
                if item in nodeinfo:
                    print(self.prefix, nodeid, '.', item, ' ', nodeinfo[item], ' ', ts, sep='', file=output)

            traffic = nodeinfo['statistics']['traffic'] if 'statistics' in nodeinfo and 'traffic' in nodeinfo['statistics'] else None
            if not traffic is None:
                for item in ['rxbytes', 'txbytes']:
                    print(self.prefix, nodeid, '.', item, ' ', traffic[item], ' ', ts, sep='', file=output)

        all_output = output.getvalue()

        if not self.dont_send:
            sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
            sock.connect((self.target_host, self.target_port))
            sock.sendall(all_output)
            sock.shutdown(socket.SHUT_WR)
            sock.close()

        output.close()

        return all_output