"""
Network statistics
"""
import time

from network import asyncore_pollchoose as asyncore
from network.connectionpool import BMConnectionPool
from network.objectracker import missingObjects


lastReceivedTimestamp = time.time()
lastReceivedBytes = 0
currentReceivedSpeed = 0
lastSentTimestamp = time.time()
lastSentBytes = 0
currentSentSpeed = 0


def connectedHostsList():
    """List of all the connected hosts"""
    return BMConnectionPool().establishedConnections()


def sentBytes():
    """Sending Bytes"""
    return asyncore.sentBytes


def uploadSpeed():
    """Getting upload speed"""
    # pylint: disable=global-statement
    global lastSentTimestamp, lastSentBytes, currentSentSpeed
    currentTimestamp = time.time()
    if int(lastSentTimestamp) < int(currentTimestamp):
        currentSentBytes = asyncore.sentBytes
        currentSentSpeed = int(
            (currentSentBytes - lastSentBytes) / (
                currentTimestamp - lastSentTimestamp))
        lastSentBytes = currentSentBytes
        lastSentTimestamp = currentTimestamp
    return currentSentSpeed


def receivedBytes():
    """Receiving Bytes"""
    return asyncore.receivedBytes


def downloadSpeed():
    """Getting download speed"""
    # pylint: disable=global-statement
    global lastReceivedTimestamp, lastReceivedBytes, currentReceivedSpeed
    currentTimestamp = time.time()
    if int(lastReceivedTimestamp) < int(currentTimestamp):
        currentReceivedBytes = asyncore.receivedBytes
        currentReceivedSpeed = int(
            (currentReceivedBytes - lastReceivedBytes) / (
                currentTimestamp - lastReceivedTimestamp))
        lastReceivedBytes = currentReceivedBytes
        lastReceivedTimestamp = currentTimestamp
    return currentReceivedSpeed


def pendingDownload():
    """Getting pending downloads"""
    return len(missingObjects)


def pendingUpload():
    """Getting pending uploads"""
    return 0