from core.api.grpc import client
from core.api.grpc.core_pb2 import Node, NodeType, Position, SessionState
iface_helper = client.InterfaceHelper(ip4_prefix="10.0.0.0/24", ip6_prefix="2001::/64")
core = client.CoreGrpcClient()
core.connect()
response = core.create_session()
session_id = response.session_id
core.set_session_state(session_id, SessionState.CONFIGURATION)
position = Position(x=200, y=200)
switch = Node(type=NodeType.SWITCH, position=position)
response = core.add_node(session_id, switch)
switch_id = response.node_id
position = Position(x=100, y=100)
n1 = Node(type=NodeType.DEFAULT, position=position, model="PC")
response = core.add_node(session_id, n1)
n1_id = response.node_id
position = Position(x=300, y=100)
n2 = Node(type=NodeType.DEFAULT, position=position, model="PC")
response = core.add_node(session_id, n2)
n2_id = response.node_id
iface1 = iface_helper.create_iface(n1_id, 0)
core.add_link(session_id, n1_id, switch_id, iface1)
iface1 = iface_helper.create_iface(n2_id, 0)
core.add_link(session_id, n2_id, switch_id, iface1)
core.set_session_state(session_id, SessionState.INSTANTIATION)