import time
import telnetlib
from my_ccie_routers import PE1, PE2, P1, P2, P3, P4


def open_telnet_conn(ip):
    global username
    global password
    telnet_port = 23
    telnet_timout = 5
    read_timout = 5
    #Logging into device
    connection = telnetlib.Telnet(ip, telnet_port, telnet_timout)
    output = connection.read_until("Username:", read_timout)
    connection.write(username + "\n")
    output = connection.read_until("Password:", read_timout)
    connection.write(password + "\n")
    time.sleep(1)
    # output = connection.read_until(">", read_timout)
    # connection.write('enable' + "\n")
    # time.sleep(1)
    # output = connection.read_until("Password:", read_timout)
    # connection.write(password + "\n")
    # time.sleep(1)
    #Setting terminal length for entire output - no pagination
    connection.write("terminal length 0\n")
    #time.sleep(1)
    #Entering global config mode
    connection.write("\n")
    connection.write("configure terminal\n")
    time.sleep(1)
    global router_hostname
    print "Python successfully entered the configuration mode of " + ' ' + router_hostname
    print "=================================================================================="
    connection.write("\n")
    global Configurations_to_be_pushed
    connection.write(Configurations_to_be_pushed)
    time.sleep(1)
    #to see the command line of the routers while configuring them
    output = connection.read_very_eager()
    print output


username = 'ccie'
password = 'ccie'
routers = [P1, P2, P3, P4, PE1, PE2]

for router in routers:

    router_ip = router['ip']
    router_hostname = router['hostname']
    Configurations_to_be_pushed = 'username python password python'
    open_telnet_conn(router_ip)