import { createSharedComposable } from "@vueuse/core"

export const useDocumentInboxCount = createSharedComposable(() => {
  const auth = useAuthStore()
  const { $api } = useNuxtApp()
  const count = ref(0)
  const scope = computed(() => auth.user?.id && auth.activeTenant && !auth.profile?.customer_for_portal && auth.activeTenantData?.features?.files !== false
    ? `${auth.user.id}:${auth.activeTenant}` : "")
  let version = 0
  let disposed = false
  let controller: AbortController | undefined
  let timer: ReturnType<typeof setTimeout> | undefined
  const refresh = async () => {
    const request = ++version
    clearTimeout(timer)
    controller?.abort()
    if (!scope.value || disposed) { count.value = 0; return }
    controller = new AbortController()
    try {
      const result = await $api<{ total: number }>("/api/document-inbox/count", { signal: controller.signal })
      if (!disposed && request === version) count.value = Math.max(0, Number(result.total) || 0)
    } catch {
      if (request === version) count.value = 0
    } finally {
      if (!disposed && request === version && scope.value) timer = setTimeout(refresh, 10000)
    }
  }
  watch(scope, () => { count.value = 0; void refresh() }, { immediate: true, flush: "sync" })
  onScopeDispose(() => { disposed = true; version++; controller?.abort(); clearTimeout(timer) })
  return { count, refresh }
})