#!/usr/bin/env python3
#
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import unittest

import config
import thread_cert

# Test description:
# The purpose of this test case is to verify that BR can manually configure addresses and comply
# with the manual address configuration rules.
#
# Topology:
#     BR_1 (Leader)
#       |
#       |
#     ROUTER
#

BR_1 = 1
ROUTER = 2

PREFIX = '2002::/64'
GUA_1 = '2002::a:b:c:d'
GUA_2 = '2002::a:b:c:e'


class ManualAddressConfig(thread_cert.TestCase):
    USE_MESSAGE_FACTORY = False

    TOPOLOGY = {
        BR_1: {
            'name': 'BR_1',
            'is_otbr': True,
            'version': '1.2',
        },
        ROUTER: {
            'name': 'ROUTER',
            'version': '1.2',
        },
    }

    def test(self):
        br1 = self.nodes[BR_1]
        router = self.nodes[ROUTER]

        br1.start()
        self.simulator.go(config.LEADER_STARTUP_DELAY)
        self.assertEqual('leader', br1.get_state())
        self.assertTrue(br1.is_primary_backbone_router)

        router.start()
        self.simulator.go(config.ROUTER_STARTUP_DELAY)
        self.assertEqual('router', router.get_state())

        # Add prefix
        br1.add_prefix(PREFIX, flags='po', prf='med')
        br1.register_netdata()
        self.simulator.go(5)

        # Configure GUA addresses
        br1.add_ipaddr(GUA_1)
        router.add_ipaddr(GUA_2)

        # BR_1 sends a ping packet to the GUA_2 address. Router should respond to the ping request.
        self.assertTrue(br1.ping(GUA_2))
        self.simulator.go(5)

        # Router sends a ping packet to the GUA_1 address. BR_1 should respond to the ping request.
        self.assertTrue(router.ping(GUA_1))
        self.simulator.go(5)


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