import { WaterTank } from "../db/models/index.js";

export async function getOrCreateWaterTank() {
  let doc = await WaterTank.findOne();
  if (!doc) doc = await WaterTank.create({ level: 0 });
  return doc;
}

/** @returns {Promise<boolean>} whether tank was updated */
export async function applyTankLevelFromPayload(payload) {
  if (payload.tankLevel == null) return false;
  const t = await getOrCreateWaterTank();
  t.level = Number(payload.tankLevel);
  await t.save();
  return true;
}