"""
Chat workflows.
"""

from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate

from app.api.scraper.services.prompts import chat_prompt
from app.core.config import settings


async def generate_chat_name(query: str) -> str:
    """
    Generate a name for a chat.
    """
    prompt = ChatPromptTemplate.from_messages(
        [("system", chat_prompt.generate_chat_name), ("human", query)]
    )
    chain = prompt | settings.get_llm(model="gpt-4.1-nano", temperature=0.3) | StrOutputParser()
    return await chain.ainvoke({"query": query})