"""Characterize configuration behavior (donor: load_env_file, _env_str,
_env_int, _env_bool)."""
import os

import photo_analyzer as pa


def test_load_env_file_parsing(tmp_path, monkeypatch):
    env = tmp_path / pa.ENV_FILE
    env.write_text(
        "# comment\n"
        "PLAIN=value\n"
        "export EXPORTED=yes\n"
        'QUOTED="hash # kept"\n'
        "INLINE=val # comment stripped\n"
        "TOKEN=pass#word\n"
        "PRESET=file-loses\n"
        "NOEQUALS\n"
    )
    monkeypatch.chdir(tmp_path)
    for k in ("PLAIN", "EXPORTED", "QUOTED", "INLINE", "TOKEN"):
        monkeypatch.delenv(k, raising=False)
    monkeypatch.setenv("PRESET", "shell-wins")

    used = pa.load_env_file()
    assert used == env
    assert os.environ["PLAIN"] == "value"
    assert os.environ["EXPORTED"] == "yes", "'export ' prefix accepted"
    assert os.environ["QUOTED"] == "hash # kept", "quoted # not a comment"
    assert os.environ["INLINE"] == "val", "inline comment stripped"
    assert os.environ["TOKEN"] == "pass#word", "mid-token # kept"
    assert os.environ["PRESET"] == "shell-wins", "shell env always wins"


def test_env_helpers(monkeypatch):
    monkeypatch.setenv("S", "")
    assert pa._env_str("S", "fb") == "fb", "empty string falls back"
    monkeypatch.setenv("I", "not-int")
    assert pa._env_int("I", 7) == 7, "bad int falls back with warning"
    monkeypatch.setenv("I", "42")
    assert pa._env_int("I", 7) == 42
    for truthy in ("1", "true", "YES", "On"):
        monkeypatch.setenv("B", truthy)
        assert pa._env_bool("B") is True
    monkeypatch.setenv("B", "0")
    assert pa._env_bool("B") is False