#!/usr/bin/env python3
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import unittest

import mle
import thread_cert
from pktverify import consts

LEADER = 1
SSED_1 = 2


class SSED_CslTransmission(thread_cert.TestCase):
    TOPOLOGY = {
        LEADER: {
            'version': '1.2',
        },
        SSED_1: {
            'version': '1.2',
            'is_mtd': True,
            'mode': '-',
        },
    }
    """All nodes are created with default configurations"""

    def test(self):

        self.nodes[SSED_1].set_csl_period(consts.CSL_DEFAULT_PERIOD)
        self.nodes[SSED_1].set_csl_timeout(consts.CSL_DEFAULT_TIMEOUT)

        self.nodes[SSED_1].get_csl_info()

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

        self.nodes[SSED_1].start()
        self.simulator.go(7)
        self.assertEqual(self.nodes[SSED_1].get_state(), 'child')

        print('SSED rloc:%s' % self.nodes[SSED_1].get_rloc())
        # Set ping timeout as two CSL periods.
        timeout = 2 * consts.CSL_DEFAULT_PERIOD_IN_SECOND
        self.assertTrue(self.nodes[LEADER].ping(self.nodes[SSED_1].get_rloc(), timeout=timeout))
        self.simulator.go(5)

        ssed_messages = self.simulator.get_messages_sent_by(SSED_1)
        msg = ssed_messages.next_mle_message(mle.CommandType.CHILD_UPDATE_REQUEST)
        msg.assertMleMessageDoesNotContainTlv(mle.CslChannel)

        self.nodes[SSED_1].set_csl_channel(consts.CSL_DEFAULT_CHANNEL)
        self.simulator.go(1)
        ssed_messages = self.simulator.get_messages_sent_by(SSED_1)
        msg = ssed_messages.next_mle_message(mle.CommandType.CHILD_UPDATE_REQUEST)
        msg.assertMleMessageContainsTlv(mle.CslChannel)
        self.assertTrue(self.nodes[LEADER].ping(self.nodes[SSED_1].get_rloc(), timeout=timeout))
        self.simulator.go(5)

        self.nodes[SSED_1].set_csl_channel(0)
        self.simulator.go(1)
        self.assertTrue(self.nodes[LEADER].ping(self.nodes[SSED_1].get_rloc(), timeout=timeout))
        self.simulator.go(5)

        ssed_messages = self.simulator.get_messages_sent_by(SSED_1)
        msg = ssed_messages.next_mle_message(mle.CommandType.CHILD_UPDATE_REQUEST)
        msg.assertMleMessageDoesNotContainTlv(mle.CslChannel)

        self.nodes[SSED_1].set_csl_period(0)
        self.assertFalse(self.nodes[LEADER].ping(self.nodes[SSED_1].get_rloc(), timeout=timeout))
        self.simulator.go(2)

        self.nodes[SSED_1].set_pollperiod(1000)
        self.simulator.go(2)
        self.nodes[SSED_1].set_pollperiod(0)
        self.simulator.go(5)


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