import pytest
from acp.schema import ImageContentBlock, TextContentBlock

from acp_adapter.server import HermesACPAgent, _content_blocks_to_openai_user_content


def test_acp_image_blocks_convert_to_openai_multimodal_content():
    content = _content_blocks_to_openai_user_content([
        TextContentBlock(type="text", text="What is in this image?"),
        ImageContentBlock(type="image", data="aGVsbG8=", mimeType="image/png"),
    ])

    assert content == [
        {"type": "text", "text": "What is in this image?"},
        {
            "type": "image_url",
            "image_url": {"url": "data:image/png;base64,aGVsbG8="},
        },
    ]


def test_text_only_acp_blocks_stay_string_for_legacy_prompt_path():
    content = _content_blocks_to_openai_user_content([
        TextContentBlock(type="text", text="/help"),
    ])

    assert content == "/help"


@pytest.mark.asyncio
async def test_initialize_advertises_image_prompt_capability():
    response = await HermesACPAgent().initialize()

    assert response.agent_capabilities is not None
    assert response.agent_capabilities.prompt_capabilities is not None
    assert response.agent_capabilities.prompt_capabilities.image is True
