import { normalizeComparableValue } from '@admin/utils/audit/normalize-comparable-value'
import { shouldTrackField } from '@admin/utils/audit/should-track-field'

export function getChangedFieldNames(
  previous: Record<string, unknown> | null | undefined,
  next: Record<string, unknown> | null | undefined
): string[] {
  if (!next) return []

  return Object.keys(next)
    .filter(shouldTrackField)
    .filter((fieldName) => {
      const previousValue = previous?.[fieldName]
      const nextValue = next[fieldName]
      return normalizeComparableValue(previousValue) !== normalizeComparableValue(nextValue)
    })
    .sort((a, b) => a.localeCompare(b))
}