import importlib
from pathlib import Path

import pytest


def test_load_env_file_sets_missing_keys_only(tmp_path, monkeypatch):
    import editor_app.config as config

    env_file = tmp_path / ".env"
    env_file.write_text(
        "# comment\nFOO=bar\nBAZ='quoted'\nEXISTING=from_file\n", encoding="utf-8"
    )

    monkeypatch.setenv("EXISTING", "kept")
    monkeypatch.delenv("FOO", raising=False)
    monkeypatch.delenv("BAZ", raising=False)

    config.load_env_file(env_file)

    assert __import__("os").environ["FOO"] == "bar"
    assert __import__("os").environ["BAZ"] == "quoted"
    assert __import__("os").environ["EXISTING"] == "kept"


def test_load_env_file_ignores_missing_file(tmp_path):
    import editor_app.config as config

    config.load_env_file(tmp_path / "missing.env")


def test_collect_python_sources_skips_hidden_and_binary(tmp_path):
    import editor_app.config as config
    import editor_app.services.filesystem as filesystem

    (tmp_path / "code").mkdir()
    (tmp_path / "code" / "ok.py").write_text("a = 1\n", encoding="utf-8")
    (tmp_path / "code" / ".venv").mkdir()
    (tmp_path / "code" / ".venv" / "skip.py").write_text("x\n", encoding="utf-8")
    (tmp_path / "bad.py").write_bytes(b"\xff\xff")

    config.WORKSPACE_ROOT = tmp_path
    out = filesystem.collect_python_sources()
    assert out["code/ok.py"] == "a = 1\n"
    assert "bad.py" not in out