export interface ContactFormData {
  name: string;
  phone: string;
  email: string;
  comment?: string;
}

export function useContact() {
  const config = useRuntimeConfig();
  const loading = ref(false);
  const error = ref<string | null>(null);
  const success = ref(false);
  const aiReply = ref<string | null>(null);

  async function submit(data: ContactFormData) {
    loading.value = true;
    error.value = null;
    try {
      const res = await $fetch<{ success: boolean; message: string; ai: { sentiment: string; category: string; autoReply: string } | null }>(
        `${config.public.apiBase}/contact`,
        {
          method: 'POST',
          body: data,
        },
      );
      success.value = true;
      aiReply.value = res.ai?.autoReply ?? null;
    } catch (e: any) {
      if (e.status === 429)
        error.value = 'Слишком много запросов. Попробуйте через минуту.';
      else
        error.value = e.data?.message ?? 'Что-то пошло не так';
    } finally {
      loading.value = false;
    }
  }

  function reset() {
    success.value = false;
    error.value = null;
    aiReply.value = null;
  }

  return { loading, error, success, aiReply, submit, reset };
}