"""A caller's own binary must be resolved against itself, not the managed install.

`executable_path` was honoured for launching and for properties.json, but the
bundled fontconfig and fonts were still read from the managed install via
get_path(). That silently mixed one build's fonts into another's launch, and
once the version floor could actually reject something it became fatal: every
launch raised UnsupportedVersion even though the caller had supplied a perfectly
good binary.
"""

from pathlib import Path

import pytest

from camoufox import pkgman, utils


@pytest.fixture
def bundle(tmp_path, monkeypatch):
    """A self-contained browser bundle, plus a managed install that must not be touched."""
    bin_dir = tmp_path / "dist" / "bin"
    (bin_dir / "fontconfig" / "linux").mkdir(parents=True)
    (bin_dir / "fontconfig" / "linux" / "fonts.conf").write_text(
        '<?xml version="1.0"?><fontconfig><dir prefix="cwd">fonts</dir></fontconfig>'
    )
    (bin_dir / "fonts").mkdir()

    def explode(*_args, **_kwargs):
        raise AssertionError("resolved against the managed install despite executable_path")

    monkeypatch.setattr(pkgman, "get_path", explode)
    monkeypatch.setattr(utils, "get_path", explode)
    monkeypatch.setattr(utils, "INSTALL_DIR", tmp_path / "cache")
    monkeypatch.setattr(utils, "OS_NAME", "lin")
    return bin_dir


def test_fontconfig_comes_from_the_supplied_bundle(bundle, monkeypatch):
    env = utils.get_env_vars({}, "lin", path=bundle / "camoufox-bin")

    generated = Path(env["FONTCONFIG_FILE"])
    assert generated.is_file()
    # The bundled conf's cwd-relative <dir> is rewritten to this bundle's fonts.
    assert str(bundle / "fonts") in generated.read_text()


def test_managed_install_is_used_when_no_path_is_given(tmp_path, monkeypatch):
    """Without executable_path the managed install is still the source."""
    calls = []
    monkeypatch.setattr(utils, "OS_NAME", "lin")
    monkeypatch.setattr(utils, "get_path", lambda *a: calls.append(a) or "/nonexistent")

    with pytest.raises(Exception):
        utils.get_env_vars({}, "lin")

    assert calls, "should have consulted the managed install"