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 client_no_auth(app):
    transport = ASGITransport(app=app)
    async with AsyncClient(transport=transport, base_url="http://test") as ac:
        yield ac


@pytest.mark.asyncio
async def test_request_without_api_key_returns_403(client_no_auth):
    resp = await client_no_auth.get("/api/health")
    assert resp.status_code == 403


@pytest.mark.asyncio
async def test_request_with_wrong_api_key_returns_403(app):
    transport = ASGITransport(app=app)
    async with AsyncClient(
        transport=transport,
        base_url="http://test",
        headers={"X-Api-Key": "wrong-key"},
    ) as ac:
        resp = await ac.get("/api/health")
        assert resp.status_code == 403


@pytest.mark.asyncio
async def test_create_topic(client):
    resp = await client.post(
        "/api/topics",
        json={
            "name": "coding",
            "system_prompt": "You are an expert coder.",
            "summary": "Coding topic",
            "model": "claude-sonnet-4-6",
        },
    )
    assert resp.status_code == 201
    data = resp.json()
    assert data["success"] is True
    assert data["data"]["name"] == "coding"
    assert data["data"]["model"] == "claude-sonnet-4-6"
    assert "id" in data["data"]


@pytest.mark.asyncio
async def test_create_topic_minimal(client):
    resp = await client.post(
        "/api/topics",
        json={"name": "analysis", "system_prompt": "You analyze data."},
    )
    assert resp.status_code == 201
    data = resp.json()
    assert data["data"]["summary"] == ""
    assert data["data"]["model"] is None


@pytest.mark.asyncio
async def test_create_topic_duplicate_name_fails(client):
    await client.post(
        "/api/topics",
        json={"name": "coding", "system_prompt": "Prompt 1"},
    )
    resp = await client.post(
        "/api/topics",
        json={"name": "coding", "system_prompt": "Prompt 2"},
    )
    assert resp.status_code == 409


@pytest.mark.asyncio
async def test_list_topics(client):
    await client.post(
        "/api/topics", json={"name": "a", "system_prompt": "A"}
    )
    await client.post(
        "/api/topics", json={"name": "b", "system_prompt": "B"}
    )
    resp = await client.get("/api/topics")
    assert resp.status_code == 200
    data = resp.json()
    assert len(data["data"]) == 2


@pytest.mark.asyncio
async def test_get_topic(client):
    create_resp = await client.post(
        "/api/topics", json={"name": "coding", "system_prompt": "Code"}
    )
    topic_id = create_resp.json()["data"]["id"]

    resp = await client.get(f"/api/topics/{topic_id}")
    assert resp.status_code == 200
    assert resp.json()["data"]["name"] == "coding"


@pytest.mark.asyncio
async def test_get_topic_not_found(client):
    resp = await client.get("/api/topics/nonexistent-id")
    assert resp.status_code == 404


@pytest.mark.asyncio
async def test_update_topic(client):
    create_resp = await client.post(
        "/api/topics", json={"name": "coding", "system_prompt": "Old"}
    )
    topic_id = create_resp.json()["data"]["id"]

    resp = await client.put(
        f"/api/topics/{topic_id}",
        json={"system_prompt": "New prompt"},
    )
    assert resp.status_code == 200
    assert resp.json()["data"]["system_prompt"] == "New prompt"
    assert resp.json()["data"]["name"] == "coding"


@pytest.mark.asyncio
async def test_delete_topic(client):
    create_resp = await client.post(
        "/api/topics", json={"name": "coding", "system_prompt": "Code"}
    )
    topic_id = create_resp.json()["data"]["id"]

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

    resp = await client.get(f"/api/topics/{topic_id}")
    assert resp.status_code == 404


@pytest.mark.asyncio
async def test_summarize_topic(client):
    create_resp = await client.post(
        "/api/topics",
        json={"name": "summarize-test", "system_prompt": "You help."},
    )
    topic_id = create_resp.json()["data"]["id"]

    from src.backend.db.database import get_db, create_request, complete_request

    db = await get_db()
    try:
        req1 = await create_request(db, "Question 1", topic_id)
        await complete_request(db, req1["id"], "Answer 1")
        req2 = await create_request(db, "Question 2", topic_id)
        await complete_request(db, req2["id"], "Answer 2")
    finally:
        await db.close()

    from unittest.mock import patch, AsyncMock, MagicMock

    mock_worker = MagicMock()
    mock_response = MagicMock()
    mock_response.status_code = 200
    mock_response.json.return_value = {
        "success": True,
        "summary": "Comprehensive summary of all exchanges.",
    }

    mock_client = AsyncMock()
    mock_client.post.return_value = mock_response
    mock_client.__aenter__ = AsyncMock(return_value=mock_client)
    mock_client.__aexit__ = AsyncMock(return_value=False)

    with patch("src.backend.services.worker_client.httpx.AsyncClient", return_value=mock_client):
        resp = await client.post(f"/api/topics/{topic_id}/summarize")

    assert resp.status_code == 200
    data = resp.json()
    assert data["success"] is True
    assert "summary" in data["data"]


@pytest.mark.asyncio
async def test_summarize_topic_no_requests(client):
    create_resp = await client.post(
        "/api/topics",
        json={"name": "empty-topic", "system_prompt": "Empty."},
    )
    topic_id = create_resp.json()["data"]["id"]

    resp = await client.post(f"/api/topics/{topic_id}/summarize")
    assert resp.status_code == 400