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from langgraph.graph import StateGraph, START, END
from .func import State, trim_history, call_practice_agent, call_teaching_agent
from langgraph.graph.state import CompiledStateGraph
from langgraph.checkpoint.memory import InMemorySaver
class LessonPractice2Agent:
def __init__(self):
pass
@staticmethod
def route_to_active_agent(state: State) -> str:
if state["active_agent"] == "Practice Agent":
return "Practice Agent"
elif state["active_agent"] == "Teaching Agent":
return "Teaching Agent"
else:
# Default to Teaching Agent if no active agent is set
return "Teaching Agent"
def node(self, graph: StateGraph):
graph.add_node("trim_history", trim_history)
graph.add_node("Practice Agent", call_practice_agent, destinations=("Teaching Agent",))
graph.add_node(
"Teaching Agent", call_teaching_agent, destinations=("Practice Agent",)
)
return graph
def edge(self, graph: StateGraph):
graph.add_edge(START, "trim_history")
graph.add_conditional_edges(
"trim_history",
self.route_to_active_agent,
{
"Practice Agent": "Practice Agent",
"Teaching Agent": "Teaching Agent",
},
)
return graph
def __call__(self, checkpointer=InMemorySaver()) -> CompiledStateGraph:
graph = StateGraph(State)
graph: StateGraph = self.node(graph)
graph: StateGraph = self.edge(graph)
return graph.compile(checkpointer=checkpointer)
lesson_practice_agent = LessonPractice2Agent() |