import pytest

from core.emulator.data import InterfaceData
from core.emulator.session import Session
from core.errors import CoreError
from core.nodes.base import CoreNode
from core.nodes.network import HubNode, SwitchNode, WlanNode

MODELS = ["router", "host", "PC", "mdr"]
NET_TYPES = [SwitchNode, HubNode, WlanNode]


class TestNodes:
    @pytest.mark.parametrize("model", MODELS)
    def test_node_add(self, session: Session, model: str):
        # given
        options = CoreNode.create_options()
        options.model = model

        # when
        node = session.add_node(CoreNode, options=options)

        # then
        assert node
        assert node.alive()
        assert node.up

    def test_node_set_pos(self, session: Session):
        # given
        node = session.add_node(CoreNode)
        x, y = 100.0, 50.0

        # when
        session.set_node_pos(node, x, y)

        # then
        assert node.position.x == x
        assert node.position.y == y

    def test_node_set_geo(self, session: Session):
        # given
        node = session.add_node(CoreNode)
        lon, lat, alt = 0.0, 0.0, 0.0

        # when
        session.set_node_geo(node, lon, lat, alt)

        # then
        assert node.position.lon == lon
        assert node.position.lat == lat
        assert node.position.alt == alt

    def test_node_delete(self, session: Session):
        # given
        node = session.add_node(CoreNode)

        # when
        session.delete_node(node.id)

        # then
        with pytest.raises(CoreError):
            session.get_node(node.id, CoreNode)

    def test_node_add_iface(self, session: Session):
        # given
        node = session.add_node(CoreNode)

        # when
        iface = node.create_iface()

        # then
        assert iface.id in node.ifaces

    def test_node_get_iface(self, session: Session):
        # given
        node = session.add_node(CoreNode)
        iface = node.create_iface()
        assert iface.id in node.ifaces

        # when
        iface2 = node.get_iface(iface.id)

        # then
        assert iface == iface2

    def test_node_delete_iface(self, session: Session):
        # given
        node = session.add_node(CoreNode)
        iface = node.create_iface()
        assert iface.id in node.ifaces

        # when
        node.delete_iface(iface.id)

        # then
        assert iface.id not in node.ifaces

    @pytest.mark.parametrize(
        "mac,expected",
        [
            ("AA-AA-AA-FF-FF-FF", "aa:aa:aa:ff:ff:ff"),
            ("00:00:00:FF:FF:FF", "00:00:00:ff:ff:ff"),
        ],
    )
    def test_node_set_mac(self, session: Session, mac: str, expected: str):
        # given
        node = session.add_node(CoreNode)
        iface_data = InterfaceData()
        iface = node.create_iface(iface_data)

        # when
        iface.set_mac(mac)

        # then
        assert str(iface.mac) == expected

    @pytest.mark.parametrize(
        "mac", ["AAA:AA:AA:FF:FF:FF", "AA:AA:AA:FF:FF", "AA/AA/AA/FF/FF/FF"]
    )
    def test_node_set_mac_exception(self, session: Session, mac: str):
        # given
        node = session.add_node(CoreNode)
        iface_data = InterfaceData()
        iface = node.create_iface(iface_data)

        # when
        with pytest.raises(CoreError):
            iface.set_mac(mac)

    @pytest.mark.parametrize(
        "ip,expected,is_ip6",
        [
            ("127", "127.0.0.0/32", False),
            ("10.0.0.1/24", "10.0.0.1/24", False),
            ("2001::", "2001::/128", True),
            ("2001::/64", "2001::/64", True),
        ],
    )
    def test_node_add_ip(self, session: Session, ip: str, expected: str, is_ip6: bool):
        # given
        node = session.add_node(CoreNode)
        iface_data = InterfaceData()
        iface = node.create_iface(iface_data)

        # when
        iface.add_ip(ip)

        # then
        if is_ip6:
            assert str(iface.get_ip6()) == expected
        else:
            assert str(iface.get_ip4()) == expected

    def test_node_add_ip_exception(self, session):
        # given
        node = session.add_node(CoreNode)
        iface_data = InterfaceData()
        iface = node.create_iface(iface_data)
        ip = "256.168.0.1/24"

        # when
        with pytest.raises(CoreError):
            iface.add_ip(ip)

    @pytest.mark.parametrize("net_type", NET_TYPES)
    def test_net(self, session, net_type):
        # given

        # when
        node = session.add_node(net_type)

        # then
        assert node
        assert node.up