from typing import Any

from fastapi import APIRouter, Depends
from pydantic import BaseModel, Field
from sqlalchemy.orm import Session

from app.auth.deps import get_current_user
from app.db.base import get_db
from app.db.models import User
from app.settings.service import SETTING_KEYS, SettingsService

router = APIRouter()


class SettingsPatch(BaseModel):
    openrouter_model: str | None = None
    memory_extract_model: str | None = None
    openrouter_vision_model: str | None = None
    openrouter_reasoning_effort: str | None = None
    rag_enabled: bool | None = None
    rag_top_k: int | None = Field(default=None, ge=1, le=50)


@router.get("/settings")
def get_settings_route(db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict[str, Any]:
    return SettingsService(db).snapshot()


@router.patch("/settings")
def patch_settings_route(
    payload: SettingsPatch,
    db: Session = Depends(get_db), user: User = Depends(get_current_user),
) -> dict[str, Any]:
    updates = payload.model_dump(exclude_unset=True)
    return SettingsService(db).patch(updates)