#!/usr/bin/env python3
# encoding: utf-8
"""
flow.py

Created by Thomas Mangin on 2010-01-14.
Copyright (c) 2009-2015 Exa Networks. All rights reserved.
License: 3-clause BSD. (See the COPYRIGHT file)
"""

import unittest

from exabgp.bgp.message.update.nlri import Flow
from exabgp.bgp.message.update.nlri.flow import Flow4Source
from exabgp.bgp.message.update.nlri.flow import Flow4Destination
from exabgp.bgp.message.update.nlri.flow import FlowAnyPort

from exabgp.bgp.message.update.nlri.flow import NumericOperator

# from exabgp.bgp.message.update.attribute.community import *

from exabgp.protocol.ip import IPv4


class TestFlow(unittest.TestCase):
    def setUp(self):
        pass

    def test_rule(self):
        components = {
            'destination': Flow4Destination(IPv4.pton("192.0.2.0"), 24),
            'source': Flow4Source(IPv4.pton("10.1.2.0"), 24),
            'anyport_1': FlowAnyPort(NumericOperator.EQ, 25),
        }
        messages = {
            'destination': [0x01, 0x18, 0xC0, 0x00, 0x02],
            'source': [0x02, 0x18, 0x0A, 0x01, 0x02],
            'anyport_1': [0x04, 0x01, 0x19],
        }

        for key in ['destination', 'source', 'anyport_1']:
            component = components[key].pack()
            message = bytes(messages[key])
            # if component != message:
            # 	self.fail('content mismatch\n%s\n%s' % (['0x%02X' % _ for _ in component],['0x%02X' % _ for _ in message]))

    def test_rule_and(self):
        components = {
            'destination': Flow4Destination(IPv4.pton("192.0.2.0"), 24),
            'source': Flow4Source(IPv4.pton("10.1.2.0"), 24),
            'anyport_1': FlowAnyPort(NumericOperator.EQ | NumericOperator.GT, 25),
            'anyport_2': FlowAnyPort(NumericOperator.EQ | NumericOperator.LT, 80),
        }
        messages = {
            'destination': [0x01, 0x18, 0xC0, 0x00, 0x02],
            'source': [0x02, 0x18, 0x0A, 0x01, 0x02],
            'anyport_1': [0x04, 0x43, 0x19],
            'anyport_2': [0x04, 0x85, 0x50],
        }

        flow = Flow()
        message = b""
        for key in ['destination', 'source', 'anyport_1', 'anyport_2']:
            flow.add(components[key])
            message += bytes(messages[key])
        message = bytes([len(message)]) + message
        # flow.add(to_FlowAction(65000,False,False))
        flow.pack()
        # print [hex(_) for _ in flow]

    def test_nlri(self):
        components = {
            'destination': Flow4Destination(IPv4.pton("192.0.2.0"), 24),
            'source': Flow4Source(IPv4.pton("10.1.2.0"), 24),
            'anyport_1': FlowAnyPort(NumericOperator.EQ | NumericOperator.GT, 25),
            'anyport_2': FlowAnyPort(NumericOperator.EQ | NumericOperator.LT, 80),
        }
        messages = {
            'destination': [0x01, 0x18, 0xC0, 0x00, 0x02],
            'source': [0x02, 0x18, 0x0A, 0x01, 0x02],
            'anyport_1': [0x04, 0x43, 0x19],
            'anyport_2': [0x85, 0x50],
        }

        flow = Flow()
        message = b""
        for key in ['destination', 'source', 'anyport_1', 'anyport_2']:
            flow.add(components[key])
            message += bytes(messages[key])
        message = bytes([len(message)]) + message
        # policy.add(to_FlowAction(65000,False,False))
        flow = flow.pack()
        if message[0] != flow[0]:
            self.fail('size mismatch %s %s\n' % (flow[0], message[0]))
        if len(flow) != flow[0] + 1:
            self.fail('invalid size for message')
        # if message[1:] != flow[1:]:
        # 	self.fail('content mismatch\n%s\n%s' % (['0x%02X' % _ for _ in flow],['0x%02X' % _ for _ in message]))

    def test_compare(self):
        components = {
            'destination': Flow4Destination(IPv4.pton("192.0.2.0"), 24),
            'source': Flow4Source(IPv4.pton("10.1.2.0"), 24),
            'anyport_1': FlowAnyPort(NumericOperator.EQ | NumericOperator.GT, 25),
            'anyport_2': FlowAnyPort(NumericOperator.EQ | NumericOperator.LT, 80),
            'anyport_3': FlowAnyPort(NumericOperator.EQ, 80),
        }

        flow1 = Flow()
        for key in ['destination', 'source', 'anyport_1', 'anyport_2']:
            flow1.add(components[key])

        flow2 = Flow()
        for key in ['destination', 'source', 'anyport_3']:
            flow2.add(components[key])

        if flow1 != flow1:
            self.fail('the flows are the same')

        if flow1 == flow2:
            self.fail('the flows are not the same')


if __name__ == '__main__':
    unittest.main()
