import json

from fastapi.testclient import TestClient

from app.env.fastapi_app import app


def test_health_endpoint_healthy() -> None:
    client = TestClient(app)
    response = client.get("/health")
    assert response.status_code == 200
    assert response.json()["status"] == "healthy"


def test_metadata_endpoint_available() -> None:
    client = TestClient(app)
    response = client.get("/metadata")
    assert response.status_code == 200
    payload = response.json()
    assert payload["name"] == "polyguard-openenv"
    assert isinstance(payload["description"], str)
    assert payload["reward_range"] == [0.001, 0.999]


def test_schema_and_mcp_endpoints_available() -> None:
    client = TestClient(app)

    schema = client.get("/schema")
    assert schema.status_code == 200
    schema_payload = schema.json()
    assert "action" in schema_payload
    assert "observation" in schema_payload
    assert "state" in schema_payload

    mcp = client.post("/mcp", json={})
    assert mcp.status_code == 200
    mcp_payload = mcp.json()
    assert mcp_payload["jsonrpc"] == "2.0"


def test_websocket_reset_and_step_roundtrip() -> None:
    client = TestClient(app)
    with client.websocket_connect("/ws") as ws:
        ws.send_text(json.dumps({"type": "reset", "data": {"seed": 7, "difficulty": "easy"}}))
        reset_message = ws.receive_json()
        assert reset_message["type"] == "result"
        assert "observation" in reset_message["data"]
        legal = client.get("/env/legal_actions").json()
        ws.send_text(json.dumps({"type": "step", "data": legal[0]}))
        step_message = ws.receive_json()
        assert step_message["type"] == "result"
        assert 0.001 <= step_message["data"]["reward"] <= 0.999
        assert "done" in step_message["data"]