from letta.llm_api.openai_client import fill_image_content_in_responses_input
from letta.schemas.enums import MessageRole
from letta.schemas.letta_message_content import Base64Image, ImageContent, TextContent
from letta.schemas.message import Message


def _user_message_with_image_first(text: str) -> Message:
    image = ImageContent(source=Base64Image(media_type="image/png", data="dGVzdA=="))
    return Message(role=MessageRole.user, content=[image, TextContent(text=text)])


def test_to_openai_responses_dicts_handles_image_first_content():
    message = _user_message_with_image_first("hello world")
    serialized = Message.to_openai_responses_dicts_from_list([message])
    parts = serialized[0]["content"]
    assert any(part["type"] == "input_text" and part["text"] == "hello world" for part in parts)
    assert any(part["type"] == "input_image" for part in parts)


def test_fill_image_content_in_responses_input_includes_image_parts():
    message = _user_message_with_image_first("describe image")
    serialized = Message.to_openai_responses_dicts_from_list([message])
    rewritten = fill_image_content_in_responses_input(serialized, [message])
    assert rewritten == serialized


def test_to_openai_responses_dicts_handles_image_only_content():
    image = ImageContent(source=Base64Image(media_type="image/png", data="dGVzdA=="))
    message = Message(role=MessageRole.user, content=[image])
    serialized = Message.to_openai_responses_dicts_from_list([message])
    parts = serialized[0]["content"]
    assert parts[0]["type"] == "input_image"