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from dataclasses import dataclass
import hci_packets as hci
import link_layer_packets as ll
import unittest
from hci_packets import ErrorCode
from py.bluetooth import Address
from py.controller import ControllerTest, Phy


class Test(ControllerTest):

    # LMP/LIH/BV-78-C [Role Switch at Setup, Central]
    async def test(self):
        # Test parameters.
        controller = self.controller
        peer_address = Address('11:22:33:44:55:66')

        controller.send_cmd(
            hci.CreateConnection(
                bd_addr=peer_address,
                packet_type=0x7fff,
                page_scan_repetition_mode=hci.PageScanRepetitionMode.R1,
                allow_role_switch=hci.CreateConnectionRoleSwitch.ALLOW_ROLE_SWITCH))

        await self.expect_evt(
            hci.CreateConnectionStatus(status=ErrorCode.SUCCESS, num_hci_command_packets=1))

        await self.expect_ll(
            ll.Page(source_address=controller.address,
                    destination_address=peer_address,
                    allow_role_switch=True))

        controller.send_ll(
            ll.PageResponse(source_address=peer_address,
                            destination_address=controller.address,
                            try_role_switch=True),
            phy=Phy.BrEdr)

        await self.expect_evt(
            hci.RoleChange(status=ErrorCode.SUCCESS,
                           bd_addr=peer_address,
                           new_role=hci.Role.PERIPHERAL))

        await self.expect_evt(
            hci.ConnectionComplete(status=ErrorCode.SUCCESS,
                                   connection_handle=self.Any,
                                   bd_addr=peer_address,
                                   link_type=hci.LinkType.ACL,
                                   encryption_enabled=hci.Enable.DISABLED))