from pathlib import Path

import pytest
import yaml

from rtut import project as J, user
from rtut.attrs import Registry, fold, set_layers


@pytest.fixture(autouse=True)
def cfg(tmp_path, monkeypatch):
    monkeypatch.setenv("RTUT_CONFIG_DIR", str(tmp_path / "cfg"))
    monkeypatch.delenv("RTUT_USER", raising=False)


def test_operator_comes_from_the_login_until_saved_then_from_the_file_and_the_environment_wins(monkeypatch):
    monkeypatch.setattr("getpass.getuser", lambda: "Bernd Worsch")
    assert user.current() == {"operator": "Bernd-Worsch", "display_name": "", "source": "login"}    # always one word
    user.save("bernd", "Bernd W.")
    assert user.current() == {"operator": "bernd", "display_name": "Bernd W.", "source": "saved"}
    monkeypatch.setenv("RTUT_USER", "alice@example.org")
    assert user.current()["operator"] == "alice-example.org" and user.current()["source"] == "environment"


def test_save_validates_and_refuses_secrets():
    for bad in ("two words", "", "x" * 41, "-lead"):
        with pytest.raises(ValueError):
            user.save(bad)
    with pytest.raises(ValueError, match="secret"):
        user.save("ok", "hvs.ABCDEFGHIJKLMN")
    assert not user.user_file().exists()


def test_user_attributes_are_a_reusable_attribute_set_outside_projects(tmp_path):
    user.save("bernd")
    repo = tmp_path / "repo"
    (repo / "runbooks/h").mkdir(parents=True)
    (repo / "runbooks/h/pack.yaml").write_text((Path(__file__).resolve().parent.parent / "runbooks/example-hello/pack.yaml").read_text())
    reg = Registry([repo], extra_sets={user.USER_SET_ID: user.attribute_set()})
    f = fold(set_layers(reg, "user-attributes"))
    assert f["operator"]["value"] == "bernd" and f["operator"]["requirement"] == "required"
    d = {"spec": "project/v0.1", "id": "p", "title": "Project p", "environment": "rehearsal", "attribute_sets": ["user-attributes"],
         "runbooks": [{"pack": "rtut.example-hello"}]}
    (repo / "projects/p").mkdir(parents=True)
    (repo / "projects/p/project.yaml").write_text(yaml.safe_dump(d))
    reg = Registry([repo], extra_sets={user.USER_SET_ID: user.attribute_set()})
    assert J.validate(reg, reg.projects["p"]) == []                       # a project can reuse the user's attributes
    (repo / "attribute-sets").mkdir()
    (repo / "attribute-sets/user-attributes.yaml").write_text(yaml.safe_dump({"spec": "attribute-set/v0.1", "id": "user-attributes", "title": "Repo override", "attributes": {"operator": "someone"}}))
    reg = Registry([repo], extra_sets={user.USER_SET_ID: user.attribute_set()})
    assert fold(set_layers(reg, "user-attributes"))["operator"]["value"] == "someone"   # a repository's own set takes precedence