"""test config"""

import pytest
from pydantic import ValidationError

from agent.config import Settings


@pytest.mark.unit
def test_settings_with_all_values():
    """Test Settings loads correctly with all values provided."""
    settings = Settings(
        anthropic_api_key="sk-ant-test",
        model="claude-test",
        max_tokens=8096,
        safedir="/tmp/test",
    )

    assert settings.anthropic_api_key == "sk-ant-test"
    assert settings.model == "claude-test"
    assert settings.max_tokens == 8096


@pytest.mark.unit
def test_settings_defaults():
    """Test Settings uses defaults for optional values."""
    settings = Settings(
        anthropic_api_key="sk-ant-test"  # Only required field
    )

    # Should use defaults
    assert settings.model == "claude-sonnet-4-5-20250929"
    assert settings.max_tokens == 8096


@pytest.mark.unit
def test_settings_missing_required_field():
    """Test Settings raises error when required field is missing."""
    with pytest.raises(ValidationError) as exc_info:
        Settings(_env_file=None)  # Missing anthropic_api_key

    # Verify the error mentions the missing field
    assert "anthropic_api_key" in str(exc_info.value)


@pytest.mark.unit
def test_settings_type_validation():
    """Test Settings validates types correctly."""
    with pytest.raises(ValidationError):
        Settings(
            anthropic_api_key="sk-ant-test",
            max_tokens="not-a-number",  # Should be int
        )