import pytest

import okx_codex_trader
from okx_codex_trader.config import load_config


def test_package_exports_version():
    assert okx_codex_trader.__version__ == "0.1.0"


def test_load_config_requires_okx_credentials(monkeypatch):
    monkeypatch.delenv("OKX_API_KEY", raising=False)
    monkeypatch.delenv("OKX_API_SECRET", raising=False)
    monkeypatch.delenv("OKX_API_PASSPHRASE", raising=False)

    with pytest.raises(ValueError):
        load_config()


def test_load_config_uses_explicit_env_mapping():
    config = load_config(
        {
            "OKX_API_KEY": "key",
            "OKX_API_SECRET": "secret",
            "OKX_API_PASSPHRASE": "passphrase",
        }
    )

    assert config.api_key == "key"
    assert config.api_secret == "secret"
    assert config.api_passphrase == "passphrase"
    assert config.trading_env == "demo"


def test_load_config_uses_live_trading_env():
    config = load_config(
        {
            "OKX_API_KEY": "key",
            "OKX_API_SECRET": "secret",
            "OKX_API_PASSPHRASE": "passphrase",
            "OKX_TRADING_ENV": "live",
        }
    )

    assert config.trading_env == "live"


def test_load_config_rejects_unknown_trading_env():
    with pytest.raises(ValueError, match="OKX_TRADING_ENV must be demo or live"):
        load_config(
            {
                "OKX_API_KEY": "key",
                "OKX_API_SECRET": "secret",
                "OKX_API_PASSPHRASE": "passphrase",
                "OKX_TRADING_ENV": "paper",
            }
        )