import json
import pytest

from fastapi.testclient import TestClient

from elac_plan.api import app


client = TestClient(app)


def test_create_problem_smoke():
    payload = {
        "id": "probe-001",
        "asset": "AAPL",
        "venue": "XNAS",
        "objective": "minimize_spread",
        "constraints": {"max_slippage": 0.5},
        "price_target": 150.0,
        "tolerance": 0.2,
    }
    resp = client.post("/problems", json=payload)
    assert resp.status_code == 200
    data = resp.json()
    assert data["problem_id"] == payload["id"]
    assert "delta" in data
    # validate delta payload json can be parsed back
    delta = json.loads(data["delta"])
    assert delta["action"] == "place_order"


def test_status_endpoint():
    resp = client.get("/status")
    assert resp.status_code == 200
    body = resp.json()
    assert "problems_count" in body
    assert "deltas_count" in body