/** Window event that keeps every ML control on one active locale. */
export const ML_LOCALE_CHANGE = 'summer:ml-locale'

/** Broadcast the locale the administrator selected on any ML control. */
export function broadcastMLLocale(locale: string): void {
  if (typeof window === 'undefined' || locale === '') {
    return
  }
  window.dispatchEvent(new CustomEvent(ML_LOCALE_CHANGE, { detail: locale }))
}

/** Locale → text map as it is sent on save: only string values. */
export function localeRecord(value: unknown): Record<string, string> {
  const out: Record<string, string> = {}
  if (value === null || typeof value !== 'object' || Array.isArray(value)) {
    return out
  }
  for (const [locale, text] of Object.entries(value as Record<string, unknown>)) {
    if (typeof text === 'string') {
      out[locale] = text
    }
  }
  return out
}