#!/usr/bin/env python3
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import unittest

import config
import thread_cert
from pktverify.consts import MLE_ADVERTISEMENT, SVR_DATA_URI, MLE_DATA_RESPONSE, MLE_CHILD_ID_RESPONSE, MLE_CHILD_UPDATE_REQUEST, MLE_CHILD_UPDATE_RESPONSE, SOURCE_ADDRESS_TLV, MODE_TLV, LEADER_DATA_TLV, NETWORK_DATA_TLV, ACTIVE_TIMESTAMP_TLV, ADDRESS_REGISTRATION_TLV, NWD_COMMISSIONING_DATA_TLV, NWD_PREFIX_TLV, NWD_BORDER_ROUTER_TLV, NWD_6LOWPAN_ID_TLV, LINK_LOCAL_ALL_NODES_MULTICAST_ADDRESS
from pktverify.packet_verifier import PacketVerifier
from pktverify.addrs import Ipv6Addr

LEADER = 1
ROUTER = 2
ED1 = 3
SED1 = 4

MTDS = [ED1, SED1]


class Cert_5_6_6_NetworkDataExpiration(thread_cert.TestCase):
    TOPOLOGY = {
        LEADER: {
            'name': 'LEADER',
            'mode': 'rdn',
            'allowlist': [ROUTER, ED1, SED1]
        },
        ROUTER: {
            'name': 'ROUTER',
            'mode': 'rdn',
            'allowlist': [LEADER]
        },
        ED1: {
            'name': 'MED',
            'is_mtd': True,
            'mode': 'rn',
            'allowlist': [LEADER]
        },
        SED1: {
            'name': 'SED',
            'is_mtd': True,
            'mode': '-',
            'timeout': config.DEFAULT_CHILD_TIMEOUT,
            'allowlist': [LEADER]
        },
    }

    def test(self):
        self.nodes[LEADER].start()
        self.simulator.go(4)
        self.assertEqual(self.nodes[LEADER].get_state(), 'leader')

        self.nodes[ROUTER].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[ROUTER].get_state(), 'router')

        self.nodes[ED1].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[ED1].get_state(), 'child')

        self.nodes[SED1].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[SED1].get_state(), 'child')

        self.collect_rlocs()
        self.nodes[ROUTER].add_prefix('2001:2:0:1::/64', 'paros')
        self.nodes[ROUTER].add_prefix('2001:2:0:2::/64', 'paro')
        self.nodes[ROUTER].add_prefix('2001:2:0:3::/64', 'paos')
        self.nodes[ROUTER].register_netdata()

        # Set lowpan context of sniffer
        self.simulator.set_lowpan_context(1, '2001:2:0:1::/64')
        self.simulator.set_lowpan_context(2, '2001:2:0:2::/64')
        self.simulator.set_lowpan_context(3, '2001:2:0:3::/64')

        self.simulator.go(10)

        addrs = self.nodes[ED1].get_addrs()
        self.assertTrue(any('2001:2:0:1' in addr[0:10] for addr in addrs))
        self.assertTrue(any('2001:2:0:2' in addr[0:10] for addr in addrs))
        self.assertTrue(any('2001:2:0:3' in addr[0:10] for addr in addrs))
        for addr in addrs:
            if addr[0:3] == '200':
                self.assertTrue(self.nodes[LEADER].ping(addr))

        addrs = self.nodes[SED1].get_addrs()
        self.assertTrue(any('2001:2:0:1' in addr[0:10] for addr in addrs))
        self.assertFalse(any('2001:2:0:2' in addr[0:10] for addr in addrs))
        self.assertTrue(any('2001:2:0:3' in addr[0:10] for addr in addrs))
        for addr in addrs:
            if addr[0:3] == '200':
                self.assertTrue(self.nodes[LEADER].ping(addr))

        self.nodes[ROUTER].remove_prefix('2001:2:0:3::/64')
        self.nodes[ROUTER].register_netdata()
        self.simulator.go(10)

        addrs = self.nodes[ED1].get_addrs()
        self.assertTrue(any('2001:2:0:1' in addr[0:10] for addr in addrs))
        self.assertTrue(any('2001:2:0:2' in addr[0:10] for addr in addrs))
        self.assertFalse(any('2001:2:0:3' in addr[0:10] for addr in addrs))
        for addr in addrs:
            if addr[0:3] == '200':
                self.assertTrue(self.nodes[LEADER].ping(addr))

        addrs = self.nodes[SED1].get_addrs()
        self.assertTrue(any('2001:2:0:1' in addr[0:10] for addr in addrs))
        self.assertFalse(any('2001:2:0:2' in addr[0:10] for addr in addrs))
        self.assertFalse(any('2001:2:0:3' in addr[0:10] for addr in addrs))
        for addr in addrs:
            if addr[0:3] == '200':
                self.assertTrue(self.nodes[LEADER].ping(addr))

        self.nodes[ROUTER].stop()
        self.simulator.go(10)

    def verify(self, pv):
        pkts = pv.pkts
        pv.summary.show()

        LEADER = pv.vars['LEADER']
        ROUTER = pv.vars['ROUTER']
        MED = pv.vars['MED']
        SED = pv.vars['SED']
        _lpkts = pkts.filter_wpan_src64(LEADER)

        # Step 1: Ensure the topology is formed correctly
        _lpkts.filter_mle_cmd(MLE_CHILD_ID_RESPONSE).filter_wpan_dst64(SED).must_next()

        # Step 4: The DUT Automatically sends a CoAP Response frame to Router_1
        _lpkts.copy().filter_ipv6_dst(pv.vars['ROUTER_RLOC']).filter_coap_ack(SVR_DATA_URI).must_next()

        # Step 5: The DUT MUST send a multicast MLE Data Response with
        # the new network information collected from Router_1
        _lpkts_med = _lpkts.copy()
        _lpkts_sed = _lpkts.copy()
        _lpkts.filter_LLANMA().filter_mle_cmd(MLE_DATA_RESPONSE).must_next().must_verify(
            lambda p: {
                NWD_COMMISSIONING_DATA_TLV, NWD_PREFIX_TLV, NWD_BORDER_ROUTER_TLV, NWD_6LOWPAN_ID_TLV, NWD_PREFIX_TLV,
                NWD_BORDER_ROUTER_TLV, NWD_6LOWPAN_ID_TLV, NWD_PREFIX_TLV, NWD_BORDER_ROUTER_TLV, NWD_6LOWPAN_ID_TLV
            } == set(p.thread_nwd.tlv.type) and {
                Ipv6Addr('2001:2:0:1::'), Ipv6Addr('2001:2:0:2::'),
                Ipv6Addr('2001:2:0:3::')
            } == set(p.thread_nwd.tlv.prefix) and p.thread_nwd.tlv.stable == [0, 1, 1, 1, 0, 0, 0, 1, 1, 1])

        # Step 7: The DUT MUST send a unicast MLE Child Update Response to MED_1
        _lpkts_med.filter_wpan_dst64(MED).filter_mle_cmd(MLE_CHILD_UPDATE_RESPONSE).must_next().must_verify(
            lambda p: {SOURCE_ADDRESS_TLV, MODE_TLV, LEADER_DATA_TLV, ADDRESS_REGISTRATION_TLV} < set(p.mle.tlv.type))

        # Step 8: The DUT MUST send a unicast MLE Child Update Request to SED_1
        _lpkts_sed.filter_wpan_dst64(SED).filter_mle_cmd(MLE_CHILD_UPDATE_REQUEST).must_next().must_verify(
            lambda p: {SOURCE_ADDRESS_TLV, LEADER_DATA_TLV, NETWORK_DATA_TLV, ACTIVE_TIMESTAMP_TLV} == set(
                p.mle.tlv.type) and {
                    NWD_PREFIX_TLV, NWD_BORDER_ROUTER_TLV, NWD_6LOWPAN_ID_TLV, NWD_PREFIX_TLV, NWD_BORDER_ROUTER_TLV,
                    NWD_6LOWPAN_ID_TLV
                } == set(p.thread_nwd.tlv.type) and {
                    Ipv6Addr('2001:2:0:1::'), Ipv6Addr('2001:2:0:3::')
                } == set(p.thread_nwd.tlv.prefix) and {0xFFFE, 0xFFFE} == set(p.thread_nwd.tlv.border_router_16))

        # Step 10: The DUT MUST send a unicast MLE Child Update Response to SED_1
        _pkt = _lpkts_sed.filter_mle_cmd(MLE_CHILD_UPDATE_RESPONSE).filter_wpan_dst64(SED).must_next()
        _pkt.must_verify(
            lambda p: {SOURCE_ADDRESS_TLV, MODE_TLV, LEADER_DATA_TLV, ADDRESS_REGISTRATION_TLV} < set(p.mle.tlv.type))

        # Step 12: The DUT updates Router ID Set and removes Router_1
        # from Network Data TLV after Router_1 power off
        # Step 13: The DUT MUST multicast a MLE Data Response with the
        # new network information
        _lpkts.filter_LLANMA().filter_mle_cmd(MLE_DATA_RESPONSE).filter_ipv6_dst(
            LINK_LOCAL_ALL_NODES_MULTICAST_ADDRESS
        ).must_next().must_verify(
            lambda p: {
                NWD_COMMISSIONING_DATA_TLV, NWD_PREFIX_TLV, NWD_BORDER_ROUTER_TLV, NWD_6LOWPAN_ID_TLV, NWD_PREFIX_TLV,
                NWD_BORDER_ROUTER_TLV, NWD_6LOWPAN_ID_TLV, NWD_PREFIX_TLV, NWD_BORDER_ROUTER_TLV, NWD_6LOWPAN_ID_TLV
            } == set(p.thread_nwd.tlv.type) and
            {Ipv6Addr('2001:2:0:1::'), Ipv6Addr('2001:2:0:2::'),
             Ipv6Addr('2001:2:0:3::')} == set(p.thread_nwd.tlv.prefix) and p.mle.tlv.leader_data.data_version ==
            (_pkt.mle.tlv.leader_data.data_version + 1) % 256 and p.mle.tlv.leader_data.stable_data_version ==
            (_pkt.mle.tlv.leader_data.stable_data_version + 1) % 256)

        # Step 15: The DUT MUST send a unicast MLE Child Update Response to MED_1
        _lpkts_med.filter_mle_cmd(MLE_CHILD_UPDATE_RESPONSE).filter_wpan_dst64(MED).must_next().must_verify(
            lambda p: {SOURCE_ADDRESS_TLV, MODE_TLV, LEADER_DATA_TLV, ADDRESS_REGISTRATION_TLV} < set(p.mle.tlv.type)
            and p.mle.tlv.leader_data.data_version == (_pkt.mle.tlv.leader_data.data_version + 1) % 256 and p.mle.tlv.
            leader_data.stable_data_version == (_pkt.mle.tlv.leader_data.stable_data_version + 1) % 256)

        # Step 16: The DUT MUST send a unicast MLE Child Update Request to SED_1
        _lpkts_sed.filter_mle_cmd(MLE_CHILD_UPDATE_REQUEST).filter_wpan_dst64(SED).must_next().must_verify(
            lambda p: {SOURCE_ADDRESS_TLV, LEADER_DATA_TLV, NETWORK_DATA_TLV, ACTIVE_TIMESTAMP_TLV} == set(
                p.mle.tlv.type) and p.mle.tlv.leader_data.data_version ==
            (_pkt.mle.tlv.leader_data.data_version + 1) % 256 and p.mle.tlv.leader_data.stable_data_version ==
            (_pkt.mle.tlv.leader_data.stable_data_version + 1) % 256)

        # Step 18: The DUT MUST send a unicast MLE Child Update Response to SED_1
        _lpkts_sed.filter_mle_cmd(MLE_CHILD_UPDATE_RESPONSE).filter_wpan_dst64(SED).must_next().must_verify(
            lambda p: {SOURCE_ADDRESS_TLV, MODE_TLV, LEADER_DATA_TLV, ADDRESS_REGISTRATION_TLV} < set(p.mle.tlv.type))


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