from datetime import datetime

from dateutil import parser as dtparser

from server.agent import run_agent, run_agent_stream
from server.schema import ActionPlan


def test_stream_yields_partials_then_plan():
    steps = 0
    final = None
    for acc, plan in run_agent_stream("Alex: lunch 1pm tomorrow?"):
        steps += 1
        assert isinstance(acc, str)
        if plan is not None:
            final = plan
    assert steps > 1  # streamed in chunks
    assert isinstance(final, ActionPlan)
    assert len(final.events) == 1
    # start/end parse as ISO 8601
    dtparser.isoparse(final.events[0].start)
    dtparser.isoparse(final.events[0].end)


def test_no_time_thread_has_no_events():
    plan = run_agent("lol that meme killed me")
    assert isinstance(plan, ActionPlan)
    assert plan.events == []
    assert plan.reply_draft  # still drafts a reply


def test_run_agent_marks_images():
    # stub ignores image content but the path should not error
    plan = run_agent("dinner 6pm", images=["data:image/png;base64,xx"])
    assert isinstance(plan, ActionPlan)