import { getRowById, insertRowWithId, updateRow } from '../crud'
import type { AppSettings } from '../../../src/db/types'

/** Muss mit DEFAULT_RATING_TREND_WEIGHT_STEP in src/config/constants.ts synchron gehalten werden. */
const DEFAULT_RATING_TREND_WEIGHT_STEP = 0.5

export function getRatingTrendWeightStep(): number {
  const settings = getRowById<AppSettings>('appSettings', 1)
  return settings?.ratingTrendWeightStep ?? DEFAULT_RATING_TREND_WEIGHT_STEP
}

export function getOrSeedRatingTrendWeightStep(): number {
  let settings = getRowById<AppSettings>('appSettings', 1)
  if (!settings) {
    insertRowWithId('appSettings', 1, { ratingTrendWeightStep: DEFAULT_RATING_TREND_WEIGHT_STEP })
    settings = getRowById<AppSettings>('appSettings', 1)
  }
  return settings?.ratingTrendWeightStep ?? DEFAULT_RATING_TREND_WEIGHT_STEP
}

export function saveRatingTrendWeightStep(weightStep: number): number {
  const existing = getRowById('appSettings', 1)
  if (existing) updateRow('appSettings', 1, { ratingTrendWeightStep: weightStep })
  else insertRowWithId('appSettings', 1, { ratingTrendWeightStep: weightStep })
  return 1
}