import pytest
from fastapi.testclient import TestClient
from app.db import get_engine, make_session_factory, init_db
from app.main import create_app


@pytest.fixture()
def client():
    engine = get_engine("sqlite:///:memory:")
    init_db(engine)
    SessionLocal = make_session_factory(engine)
    app = create_app(SessionLocal)
    return TestClient(app)


def test_create_item_returns_201(client):
    resp = client.post("/items", json={
        "modality": "bh_email",
        "raw_content": "Books to donate",
        "captured_at": "2026-07-13T07:00:00Z",
        "discord_message_id": "abc-1",
    })
    assert resp.status_code == 201
    body = resp.json()
    assert body["stage"] == "new"
    assert body["modality"] == "bh_email"


def test_create_item_idempotent_returns_200(client):
    payload = {
        "modality": "bh_email", "raw_content": "x",
        "captured_at": "2026-07-13T07:00:00Z", "discord_message_id": "dup-9",
    }
    first = client.post("/items", json=payload)
    second = client.post("/items", json=payload)
    assert first.status_code == 201
    assert second.status_code == 200
    assert first.json()["id"] == second.json()["id"]


def test_list_items_excludes_done_by_default(client):
    resp = client.post("/items", json={
        "modality": "voice", "raw_content": "call note",
        "captured_at": "2026-07-13T07:00:00Z", "discord_message_id": "v-1",
    })
    item_id = resp.json()["id"]
    client.patch(f"/items/{item_id}", json={"type": "other"})
    client.patch(f"/items/{item_id}", json={"stage": "done"})

    listed = client.get("/items").json()
    assert item_id not in [i["id"] for i in listed]

    listed_all = client.get("/items?include_done=true").json()
    assert item_id in [i["id"] for i in listed_all]


def test_patch_invalid_stage_returns_422(client):
    resp = client.post("/items", json={
        "modality": "voice", "raw_content": "x",
        "captured_at": "2026-07-13T07:00:00Z", "discord_message_id": "v-2",
    })
    item_id = resp.json()["id"]
    client.patch(f"/items/{item_id}", json={"type": "other"})
    bad = client.patch(f"/items/{item_id}", json={"stage": "pickup_scheduled"})
    assert bad.status_code == 422


def test_get_missing_item_returns_404(client):
    resp = client.get("/items/999999")
    assert resp.status_code == 404