from fastapi import APIRouter, HTTPException
from pydantic import BaseModel
from typing import Optional
from app.services.folder_store import get_folder, update_folder
from app.utils.time import now_ts

router = APIRouter(prefix="/folders", tags=["folders"])


class UpdateFolderRequest(BaseModel):
    name: Optional[str] = None
    color_hex: Optional[str] = None


@router.patch("/{folder_id}")
def update_folder_api(folder_id: str, req: UpdateFolderRequest):
    folder = get_folder(folder_id)
    if not folder:
        raise HTTPException(status_code=404, detail="Folder not found")

    updates = req.dict(exclude_unset=True)
    updates["updated_at"] = now_ts()

    update_folder(folder_id, updates)
    return {"folder_id": folder_id, "updated": True}