"""Tests for ci_orchestrator.config."""

from __future__ import annotations

import os
from pathlib import Path

from ci_orchestrator.config import load_config


def test_defaults_are_os_aware() -> None:
    cfg = load_config(env={})
    if os.name == "nt":
        assert str(cfg.paths.root) == r"F:\CI"
    else:
        assert str(cfg.paths.root) == "/var/lib/ci"


def test_env_overrides_paths(tmp_path: Path) -> None:
    cfg = load_config(
        env={
            "CI_ROOT": str(tmp_path / "root"),
            "CI_TEMPLATES": str(tmp_path / "tpl"),
            "CI_BUILD_VMS": str(tmp_path / "bvm"),
            "CI_ARTIFACTS": str(tmp_path / "art"),
            "CI_KEYS": str(tmp_path / "keys"),
        }
    )
    assert cfg.paths.root == tmp_path / "root"
    assert cfg.paths.templates == tmp_path / "tpl"
    assert cfg.paths.build_vms == tmp_path / "bvm"
    assert cfg.paths.artifacts == tmp_path / "art"
    assert cfg.paths.keys == tmp_path / "keys"


def test_toml_overrides_defaults(tmp_path: Path) -> None:
    toml = tmp_path / "config.toml"
    toml.write_text(
        '[paths]\n'
        f'root = "{(tmp_path / "altroot").as_posix()}"\n'
        '[backend]\n'
        'type = "workstation"\n'
        'extra = "value"\n',
        encoding="utf-8",
    )
    cfg = load_config(config_path=toml, env={})
    assert cfg.paths.root == tmp_path / "altroot"
    assert cfg.backend.type == "workstation"
    assert cfg.backend.options == {"extra": "value"}


def test_env_wins_over_toml(tmp_path: Path) -> None:
    toml = tmp_path / "config.toml"
    toml.write_text(
        f'[paths]\nroot = "{(tmp_path / "fromtoml").as_posix()}"\n',
        encoding="utf-8",
    )
    cfg = load_config(
        config_path=toml,
        env={"CI_ROOT": str(tmp_path / "fromenv")},
    )
    assert cfg.paths.root == tmp_path / "fromenv"