#!/usr/bin/env python
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import time
import unittest

import config
import mle
import network_layer
import node

LEADER = 1
ROUTER = 2
SNIFFER = 3


class Cert_5_1_01_RouterAttach(unittest.TestCase):

    def setUp(self):
        self.nodes = {}
        for i in range(1, 3):
            self.nodes[i] = node.Node(i)

        self.nodes[LEADER].set_panid(0xface)
        self.nodes[LEADER].set_mode('rsdn')
        self.nodes[LEADER].add_whitelist(self.nodes[ROUTER].get_addr64())
        self.nodes[LEADER].enable_whitelist()

        self.nodes[ROUTER].set_panid(0xface)
        self.nodes[ROUTER].set_mode('rsdn')
        self.nodes[ROUTER].add_whitelist(self.nodes[LEADER].get_addr64())
        self.nodes[ROUTER].enable_whitelist()
        self.nodes[ROUTER].set_router_selection_jitter(1)

        self.sniffer = config.create_default_thread_sniffer(SNIFFER)
        self.sniffer.start()

    def tearDown(self):
        self.sniffer.stop()
        del self.sniffer

        for node in list(self.nodes.values()):
            node.stop()
        del self.nodes

    def test(self):
        self.nodes[LEADER].start()
        self.nodes[LEADER].set_state('leader')
        self.assertEqual(self.nodes[LEADER].get_state(), 'leader')
        time.sleep(4)

        self.nodes[ROUTER].start()
        time.sleep(7)
        self.assertEqual(self.nodes[ROUTER].get_state(), 'router')

        leader_messages = self.sniffer.get_messages_sent_by(LEADER)
        router_messages = self.sniffer.get_messages_sent_by(ROUTER)

        # 1 - Leader
        msg = leader_messages.next_mle_message(mle.CommandType.ADVERTISEMENT)
        msg.assertSentWithHopLimit(255)
        msg.assertSentToDestinationAddress("ff02::1")
        msg.assertMleMessageContainsTlv(mle.SourceAddress)
        msg.assertMleMessageContainsTlv(mle.LeaderData)
        msg.assertMleMessageContainsTlv(mle.Route64)

        # 2 - Router
        msg = router_messages.next_mle_message(mle.CommandType.PARENT_REQUEST)
        msg.assertSentWithHopLimit(255)
        msg.assertSentToDestinationAddress("ff02::2")
        msg.assertMleMessageContainsTlv(mle.Mode)
        msg.assertMleMessageContainsTlv(mle.Challenge)
        msg.assertMleMessageContainsTlv(mle.ScanMask)
        msg.assertMleMessageContainsTlv(mle.Version)

        scan_mask_tlv = msg.get_mle_message_tlv(mle.ScanMask)
        self.assertEqual(1, scan_mask_tlv.router)
        self.assertEqual(0, scan_mask_tlv.end_device)

        # 3 - Leader
        msg = leader_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
        msg.assertSentToNode(self.nodes[ROUTER])
        msg.assertMleMessageContainsTlv(mle.SourceAddress)
        msg.assertMleMessageContainsTlv(mle.LeaderData)
        msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)
        msg.assertMleMessageContainsOptionalTlv(mle.MleFrameCounter)
        msg.assertMleMessageContainsTlv(mle.Response)
        msg.assertMleMessageContainsTlv(mle.Challenge)
        msg.assertMleMessageContainsTlv(mle.LinkMargin)
        msg.assertMleMessageContainsTlv(mle.Connectivity)
        msg.assertMleMessageContainsTlv(mle.Version)

        # 4 - Router
        msg = router_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST)
        msg.assertSentToNode(self.nodes[LEADER])
        msg.assertMleMessageContainsTlv(mle.Response)
        msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)
        msg.assertMleMessageContainsOptionalTlv(mle.MleFrameCounter)
        msg.assertMleMessageContainsTlv(mle.Mode)
        msg.assertMleMessageContainsTlv(mle.Timeout)
        msg.assertMleMessageContainsTlv(mle.Version)
        msg.assertMleMessageContainsTlv(mle.TlvRequest)
        msg.assertMleMessageDoesNotContainTlv(mle.AddressRegistration)

        # 5 - Leader
        msg = leader_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)
        msg.assertSentToNode(self.nodes[ROUTER])
        msg.assertMleMessageContainsTlv(mle.SourceAddress)
        msg.assertMleMessageContainsTlv(mle.LeaderData)
        msg.assertMleMessageContainsTlv(mle.Address16)
        msg.assertMleMessageContainsOptionalTlv(mle.NetworkData)
        msg.assertMleMessageContainsOptionalTlv(mle.Route64)
        msg.assertMleMessageContainsOptionalTlv(mle.AddressRegistration)

        # 6 - Router
        msg = router_messages.next_coap_message("0.02")
        msg.assertCoapMessageRequestUriPath("/a/as")
        msg.assertCoapMessageContainsTlv(network_layer.MacExtendedAddress)
        msg.assertCoapMessageContainsTlv(network_layer.Status)

        # 7 - Leader
        msg = leader_messages.next_coap_message("2.04")
        msg.assertCoapMessageContainsTlv(network_layer.Status)
        msg.assertCoapMessageContainsOptionalTlv(network_layer.RouterMask)

        status_tlv = msg.get_coap_message_tlv(network_layer.Status)
        self.assertEqual(network_layer.StatusValues.SUCCESS, status_tlv.status)

        # 8 - Router
        msg = router_messages.next_mle_message(mle.CommandType.LINK_REQUEST)
        msg.assertMleMessageContainsTlv(mle.SourceAddress)
        msg.assertMleMessageContainsTlv(mle.LeaderData)
        msg.assertMleMessageContainsTlv(mle.Challenge)
        msg.assertMleMessageContainsTlv(mle.Version)
        msg.assertMleMessageContainsTlv(mle.TlvRequest)

        tlv_request = msg.get_mle_message_tlv(mle.TlvRequest)
        self.assertIn(mle.TlvType.LINK_MARGIN, tlv_request.tlvs)

        # 9 - Leader
        msg = leader_messages.next_mle_message(mle.CommandType.LINK_ACCEPT_AND_REQUEST)
        msg.assertMleMessageContainsTlv(mle.SourceAddress)
        msg.assertMleMessageContainsTlv(mle.LeaderData)
        msg.assertMleMessageContainsTlv(mle.Response)
        msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)
        msg.assertMleMessageContainsTlv(mle.Version)
        msg.assertMleMessageContainsTlv(mle.LinkMargin)
        msg.assertMleMessageContainsOptionalTlv(mle.MleFrameCounter)
        msg.assertMleMessageContainsOptionalTlv(mle.Challenge)

        # 10 - Router
        msg = router_messages.next_mle_message(mle.CommandType.ADVERTISEMENT)
        msg.assertSentWithHopLimit(255)
        msg.assertSentToDestinationAddress("ff02::1")
        msg.assertMleMessageContainsTlv(mle.SourceAddress)
        msg.assertMleMessageContainsTlv(mle.LeaderData)
        msg.assertMleMessageContainsTlv(mle.Route64)

        # 11 - Leader, Router1
        for addr in self.nodes[LEADER].get_addrs():
            self.assertTrue(self.nodes[ROUTER].ping(addr))


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