#!/usr/bin/env python3
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import unittest

import mle
import thread_cert

LEADER = 1
ROUTER1 = 2
ROUTER2 = 3
ROUTER3 = 4


class Cert_5_1_10_RouterAttachLinkQuality(thread_cert.TestCase):
    TOPOLOGY = {
        LEADER: {
            'mode': 'rsdn',
            'panid': 0xface,
            'whitelist': [ROUTER1, ROUTER2]
        },
        ROUTER1: {
            'mode': 'rsdn',
            'panid': 0xface,
            'router_selection_jitter': 1,
            'whitelist': [LEADER, ROUTER3]
        },
        ROUTER2: {
            'mode': 'rsdn',
            'panid': 0xface,
            'router_selection_jitter': 1,
            'whitelist': [LEADER, (ROUTER3, -85)]
        },
        ROUTER3: {
            'mode': 'rsdn',
            'panid': 0xface,
            'router_selection_jitter': 1,
            'whitelist': [ROUTER1, ROUTER2]
        },
    }

    def test(self):
        self.nodes[LEADER].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[LEADER].get_state(), 'leader')

        self.nodes[ROUTER1].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[ROUTER1].get_state(), 'router')

        self.nodes[ROUTER2].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[ROUTER2].get_state(), 'router')

        self.nodes[ROUTER3].start()
        self.simulator.go(5)
        self.assertEqual(self.nodes[ROUTER3].get_state(), 'router')

        leader_messages = self.simulator.get_messages_sent_by(LEADER)
        router1_messages = self.simulator.get_messages_sent_by(ROUTER1)
        router2_messages = self.simulator.get_messages_sent_by(ROUTER2)
        router3_messages = self.simulator.get_messages_sent_by(ROUTER3)

        # 1 - Leader, Router1, Router2
        leader_messages.next_mle_message(mle.CommandType.ADVERTISEMENT)

        router1_messages.next_mle_message(mle.CommandType.PARENT_REQUEST)
        leader_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)

        router1_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST)
        leader_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)

        msg = router1_messages.next_coap_message("0.02")
        msg.assertCoapMessageRequestUriPath("/a/as")

        msg = leader_messages.next_coap_message("2.04")

        router2_messages.next_mle_message(mle.CommandType.PARENT_REQUEST)
        leader_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)

        router2_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST)
        leader_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)

        msg = router2_messages.next_coap_message("0.02")
        msg.assertCoapMessageRequestUriPath("/a/as")

        msg = leader_messages.next_coap_message("2.04")

        router1_messages.next_mle_message(mle.CommandType.ADVERTISEMENT)
        router2_messages.next_mle_message(mle.CommandType.ADVERTISEMENT)

        # 3 - Router3
        msg = router3_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)

        # 4 - Router1, Router2
        msg = router1_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
        msg.assertSentToNode(self.nodes[ROUTER3])

        msg = router2_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
        msg.assertSentToNode(self.nodes[ROUTER3])

        # 5 - Router3
        msg = router3_messages.next_mle_message(
            mle.CommandType.CHILD_ID_REQUEST)
        msg.assertSentToNode(self.nodes[ROUTER1])
        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)


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