#!/usr/bin/env python
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import unittest

import config
import mle
import node

LEADER = 1
ROUTER = 2
ED = 3
SED = 4

MTDS = [ED, SED]


class Cert_5_1_02_ChildAddressTimeout(unittest.TestCase):
    def setUp(self):
        self.simulator = config.create_default_simulator()

        self.nodes = {}
        for i in range(1, 5):
            self.nodes[i] = node.Node(i, (i in MTDS), simulator=self.simulator)

        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].add_whitelist(self.nodes[ED].get_addr64())
        self.nodes[ROUTER].add_whitelist(self.nodes[SED].get_addr64())
        self.nodes[ROUTER].enable_whitelist()
        self.nodes[ROUTER].set_router_selection_jitter(1)

        self.nodes[ED].set_panid(0xface)
        self.nodes[ED].set_mode('rsn')
        self.nodes[ED].set_timeout(config.DEFAULT_CHILD_TIMEOUT)
        self.nodes[ED].add_whitelist(self.nodes[ROUTER].get_addr64())
        self.nodes[ED].enable_whitelist()

        self.nodes[SED].set_panid(0xface)
        self.nodes[SED].set_mode('sn')
        self.nodes[SED].set_timeout(config.DEFAULT_CHILD_TIMEOUT)
        self.nodes[SED].add_whitelist(self.nodes[ROUTER].get_addr64())
        self.nodes[SED].enable_whitelist()

    def tearDown(self):
        for n in list(self.nodes.values()):
            n.stop()
            n.destroy()
        self.simulator.stop()

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

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

        ed_addrs = self.nodes[ED].get_addrs()
        sed_addrs = self.nodes[SED].get_addrs()

        self.nodes[ED].stop()
        self.simulator.go(5)
        for addr in ed_addrs:
            if addr[0:4] != 'fe80':
                self.assertFalse(self.nodes[LEADER].ping(addr))

        self.nodes[SED].stop()
        self.simulator.go(5)
        for addr in sed_addrs:
            if addr[0:4] != 'fe80':
                self.assertFalse(self.nodes[LEADER].ping(addr))

        leader_messages = self.simulator.get_messages_sent_by(LEADER)
        router1_messages = self.simulator.get_messages_sent_by(ROUTER)
        ed_messages = self.simulator.get_messages_sent_by(ED)
        sed_messages = self.simulator.get_messages_sent_by(SED)

        # 1 - All
        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")

        router1_messages.next_mle_message(mle.CommandType.ADVERTISEMENT)

        ed_messages.next_mle_message(mle.CommandType.PARENT_REQUEST)
        router1_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
        ed_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST)
        router1_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)

        sed_messages.next_mle_message(mle.CommandType.PARENT_REQUEST)
        router1_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
        sed_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST)
        router1_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)

        # 3 - Leader
        msg = leader_messages.next_coap_message("0.02")
        msg.assertCoapMessageRequestUriPath("/a/aq")

        msg = leader_messages.next_coap_message("0.02")
        msg.assertCoapMessageRequestUriPath("/a/aq")

        # 4 - Router1
        msg = router1_messages.does_not_contain_coap_message()

        # 6 - Leader
        msg = leader_messages.next_coap_message("0.02")
        msg.assertCoapMessageRequestUriPath("/a/aq")

        msg = leader_messages.next_coap_message("0.02")
        msg.assertCoapMessageRequestUriPath("/a/aq")

        # 7 - Router1
        msg = router1_messages.does_not_contain_coap_message()


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