AstralRinth/packages/ui/src/composables/how-ago.ts

import { createFormatter, type FormatOptions, type Formatter } from '@vintl/how-ago'
import type { IntlController } from '@vintl/vintl/controller'
import { useVIntl } from '@vintl/vintl'
import { computed } from 'vue'

/* eslint-disable @typescript-eslint/no-explicit-any */
const formatters = new WeakMap<IntlController<any>, Formatter>()

export function useRelativeTime(): Formatter {
  const vintl = useVIntl()

  let formatter = formatters.get(vintl)

  if (formatter == null) {
    const formatterRef = computed(() => createFormatter(vintl.intl))
    const defaultOptions: FormatOptions = { roundingMode: 'halfExpand' as const }

    formatter = (value, options) => formatterRef.value(value, { ...options, ...defaultOptions })
    formatters.set(vintl, formatter)
  }

  return formatter
}