import os
import pytest
from app.config import load_config, ConfigError


def test_missing_required_raises():
    with pytest.raises(ConfigError) as e:
        load_config({"IMMICH_URL": "http://x"})
    assert "IMMICH_API_KEY" in e.value.missing


def test_anthropic_optional_and_paths(tmp_path):
    cfg = load_config({"IMMICH_URL": "http://x/", "IMMICH_API_KEY": "k",
                       "DATA_DIR": str(tmp_path)})
    assert cfg.immich_url == "http://x"          # trailing slash stripped
    assert cfg.anthropic_api_key == ""           # optional in M1
    assert cfg.db_path == os.path.join(str(tmp_path), "trip-cluster.db")
    assert cfg.thumbs_dir == os.path.join(str(tmp_path), "thumbs")


def test_immich_db_url_optional():
    # DSN is optional — only the pgvector spike / M1.5 need it; REST creds stay required.
    cfg = load_config({"IMMICH_URL": "http://x", "IMMICH_API_KEY": "k"})
    assert cfg.immich_db_url is None

    cfg = load_config({"IMMICH_URL": "http://x", "IMMICH_API_KEY": "k",
                       "IMMICH_DB_URL": "  postgresql://u:p@h:5432/immich  "})
    assert cfg.immich_db_url == "postgresql://u:p@h:5432/immich"  # trimmed