"""A rename onto a name already taken says WHICH name is taken: the one asked for, not the row's
old name (the rollback that follows the conflict puts the old name back on the row). DB lane.
"""

from fastapi.testclient import TestClient

import app.state as state
from app.auth import current_user
from app.db import get_db
from app.main import app
from app.models import User


def _client(db, monkeypatch, override_dep):
    u = User(email="taken@example.com")
    db.add(u)
    db.commit()
    monkeypatch.setattr(
        state, "_configured_cache", True
    )  # the request gate 503s an unconfigured app
    override_dep(get_db, db.info["request"])
    override_dep(current_user, lambda: u)
    return TestClient(app)


def test_renaming_a_view_onto_a_taken_name_names_the_taken_one(db, monkeypatch, override_dep):
    c = _client(db, monkeypatch, override_dep)
    gaming = c.post("/api/saved-views", json={"name": "gaming", "filters": {}, "source": "feed"})
    assert gaming.status_code == 200
    hh = c.post("/api/saved-views", json={"name": "hh", "filters": {}, "source": "feed"}).json()

    r = c.patch(f"/api/saved-views/{hh['id']}", json={"name": "gaming"})

    assert r.status_code == 409
    assert r.json()["detail"] == {"code": "refused", "reason": "view_name_taken", "name": "gaming"}


def test_renaming_a_tag_onto_a_taken_name_names_the_taken_one(db, monkeypatch, override_dep):
    c = _client(db, monkeypatch, override_dep)
    assert c.post("/api/tags", json={"name": "music"}).status_code == 200
    news = c.post("/api/tags", json={"name": "news"}).json()

    r = c.patch(f"/api/tags/{news['id']}", json={"name": "music"})

    assert r.status_code == 409
    assert r.json()["detail"] == {"code": "refused", "reason": "tag_name_taken", "name": "music"}