import os
from pathlib import Path
import pytest
from journal_bot.config import Config


def test_config_loads_from_env(monkeypatch, tmp_path):
    monkeypatch.setenv("TELEGRAM_TOKEN", "abc")
    monkeypatch.setenv("ALLOWED_USER_ID", "42")
    monkeypatch.setenv("VAULT_PATH", str(tmp_path))
    monkeypatch.setenv("JOURNAL_BOT_HOME", str(tmp_path / "runtime"))

    cfg = Config()

    assert cfg.telegram_token == "abc"
    assert cfg.allowed_user_id == 42
    assert cfg.vault_path == tmp_path
    assert cfg.queue_dir == tmp_path / "runtime" / "queue"
    assert cfg.state_dir == tmp_path / "runtime" / "state"
    assert cfg.logs_dir == tmp_path / "runtime" / "logs"


def test_config_missing_required_fails(monkeypatch):
    for var in ["TELEGRAM_TOKEN", "ALLOWED_USER_ID", "VAULT_PATH"]:
        monkeypatch.delenv(var, raising=False)
    with pytest.raises(Exception):
        Config()