"""Runtime settings API for LLM provider and API keys."""

from pydantic import BaseModel
from fastapi import APIRouter

from app.config import public_settings, update_runtime_settings

router = APIRouter()


class SettingsUpdate(BaseModel):
    llm_provider: str | None = None
    openai_api_key: str | None = None
    anthropic_api_key: str | None = None
    deepseek_api_key: str | None = None
    custom_openai_api_key: str | None = None
    custom_openai_base_url: str | None = None
    custom_openai_model: str | None = None


@router.get("")
async def get_runtime_settings():
    return public_settings()


@router.put("")
async def update_settings(body: SettingsUpdate):
    payload = body.model_dump(exclude_unset=True)
    update_runtime_settings(payload)
    return public_settings()