"""Integration: the librarian's Crossref-contact resolution.

CONJURER_CROSSREF_MAILTO alone is a valid, complete configuration. A missing
netrc must NOT produce a "credentials missing" warning in that case - the old
code warned on every single search even though the env var was set and used.
Only a genuine absence of any contact should warn (and then raise).
"""
import logging
import sys
import types

import pytest

if "habanero" not in sys.modules:
    _habanero = types.ModuleType("habanero")
    _habanero.Crossref = object
    sys.modules["habanero"] = _habanero

import conjurer_librarian as lib  # noqa: E402


class _DummyCrossref:
    """Accepts the kwargs the real Crossref does, so Librarian() can construct."""

    def __init__(self, **kwargs):
        self.kwargs = kwargs


@pytest.fixture(autouse=True)
def _crossref_and_missing_netrc(monkeypatch):
    # Build with a harmless Crossref, and force the netrc read to miss so the
    # env-var path is what's exercised.
    monkeypatch.setattr(lib, "Crossref", _DummyCrossref)
    monkeypatch.setattr(lib, "NETRC_FILE", "/nonexistent/conjurer/.netrc")


def test_env_mailto_alone_does_not_warn(monkeypatch, caplog):
    monkeypatch.setenv("CONJURER_CROSSREF_MAILTO", "mtuszowski@example.com")
    with caplog.at_level(logging.WARNING, logger="conjurer_librarian"):
        librarian = lib.Librarian(lib.app, "kwas foliowy", "uuid-1", False)
    assert librarian.uuid == "uuid-1"  # constructed fine
    assert not any(
        "credentials missing" in r.getMessage().lower()
        or "not configured" in r.getMessage().lower()
        for r in caplog.records
    ), "a missing netrc must not warn when CONJURER_CROSSREF_MAILTO is set"


def test_no_contact_anywhere_raises(monkeypatch):
    monkeypatch.delenv("CONJURER_CROSSREF_MAILTO", raising=False)
    with pytest.raises(RuntimeError):
        lib.Librarian(lib.app, "kwas foliowy", "uuid-2", False)