Session State Events

"""
Session State Events
=============================

Session State Events.
"""

from agno.agent import Agent, RunCompletedEvent
from agno.db.sqlite import SqliteDb
from agno.models.openai import OpenAIResponses
from agno.run import RunContext


def add_item(run_context: RunContext, item: str) -> str:
    """Add an item to the shopping list."""
    if run_context.session_state is None:
        run_context.session_state = {}

    run_context.session_state["shopping_list"].append(item)  # type: ignore
    return f"The shopping list is now {run_context.session_state['shopping_list']}"  # type: ignore


# Create an Agent that maintains state
# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------
agent = Agent(
    model=OpenAIResponses(id="gpt-5-mini"),
    # Initialize the session state with a counter starting at 0 (this is the default session state for all users)
    session_state={"shopping_list": []},
    db=SqliteDb(db_file="tmp/agents.db"),
    tools=[add_item],
    # You can use variables from the session state in the instructions
    instructions="Current state (shopping list) is: {shopping_list}",
    markdown=True,
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    # Example usage
    response = agent.run(
        "Add milk, eggs, and bread to the shopping list",
        stream=True,
        stream_events=True,
    )
    for event in response:
        if isinstance(event, RunCompletedEvent):
            print(f"Session state: {event.session_state}")