import type { BasePayload } from 'payload'

import type { NotificationsData, NotificationTexts } from './types.js'

import { getGlobal } from '../payload/index.js'
import { NOTIFICATION_FALLBACK } from './defaults.js'

type GetNotificationTextsArgs = {
  /** Active locale — selects the language variant of each text. */
  locale?: string
  payload: BasePayload
}

/**
 * Resolves notification texts from the Notifications global, falling back to
 * English defaults per field. Mirrors getConsentTexts: one read, per-field
 * fallback, locale-aware. The frontend maps a submitForm result code to the
 * matching text and styles it however it likes (toast, inline, banner).
 */
export async function getNotificationTexts({
  locale,
  payload,
}: GetNotificationTextsArgs): Promise<NotificationTexts> {
  const g = await getGlobal<NotificationsData>(payload, 'notifications', { locale })

  const f = g.form ?? {}
  const fb = NOTIFICATION_FALLBACK.form

  return {
    form: {
      consent: f.consent || fb.consent,
      error: f.error || fb.error,
      notFound: f.notFound || fb.notFound,
      rateLimited: f.rateLimited || fb.rateLimited,
      success: f.success || fb.success,
      turnstile: f.turnstile || fb.turnstile,
      validation: f.validation || fb.validation,
    },
  }
}