import pytest
from httpx import AsyncClient, ASGITransport


@pytest.fixture
def app():
    from src.backend.main import app
    return app


@pytest.fixture
async def client(app):
    transport = ASGITransport(app=app)
    async with AsyncClient(
        transport=transport,
        base_url="http://test",
        headers={"X-Api-Key": "test-key-12345"},
    ) as ac:
        yield ac


@pytest.fixture
async def topic_id(client):
    resp = await client.post(
        "/api/topics",
        json={"name": "sessions-test", "system_prompt": "Test prompt."},
    )
    return resp.json()["data"]["id"]


@pytest.mark.asyncio
async def test_list_sessions_empty(client):
    resp = await client.get("/api/sessions")
    assert resp.status_code == 200
    assert resp.json()["data"] == []


@pytest.mark.asyncio
async def test_list_sessions_with_data(client, topic_id):
    resp1 = await client.post(
        "/api/requests",
        json={"prompt": "First", "topic_id": topic_id, "session_id": "new"},
    )
    session_id = resp1.json()["data"]["session_id"]

    await client.post(
        "/api/requests",
        json={"prompt": "Second", "topic_id": topic_id, "session_id": session_id},
    )

    resp = await client.get("/api/sessions")
    assert resp.status_code == 200
    sessions = resp.json()["data"]
    assert len(sessions) == 1
    assert sessions[0]["session_id"] == session_id
    assert sessions[0]["request_count"] == 2


@pytest.mark.asyncio
async def test_delete_session(client, topic_id):
    resp1 = await client.post(
        "/api/requests",
        json={"prompt": "Hello", "topic_id": topic_id, "session_id": "new"},
    )
    session_id = resp1.json()["data"]["session_id"]

    resp = await client.delete(f"/api/sessions/{session_id}")
    assert resp.status_code == 200

    resp = await client.post(
        "/api/requests",
        json={"prompt": "Again", "topic_id": topic_id, "session_id": session_id},
    )
    assert resp.status_code == 410