from __future__ import annotations

import pytest


@pytest.mark.asyncio
async def test_build_client_deribit_returns_correct_url(monkeypatch):
    from tests.unit.test_settings import _minimal_env

    for k, v in _minimal_env().items():
        monkeypatch.setenv(k, v)

    from cerbero_mcp.settings import Settings
    from cerbero_mcp.exchanges import build_client

    s = Settings()
    c_test = await build_client(s, "deribit", "testnet")
    c_live = await build_client(s, "deribit", "mainnet")

    # DeribitClient espone base_url come property derivata da self.testnet
    assert "test" in c_test.base_url.lower()
    assert "test" not in c_live.base_url.lower()


@pytest.mark.asyncio
async def test_build_client_unknown_exchange_raises(monkeypatch):
    from tests.unit.test_settings import _minimal_env

    for k, v in _minimal_env().items():
        monkeypatch.setenv(k, v)

    from cerbero_mcp.settings import Settings
    from cerbero_mcp.exchanges import build_client

    s = Settings()
    with pytest.raises(ValueError):
        await build_client(s, "ftx", "testnet")