import { defineStore } from 'pinia';
import { computed, ref } from 'vue';
import { fetchBusinessCategories } from '@/api/business-categories';
import { fetchBusiness, fetchBusinesses } from '@/api/businesses';
import type { Business } from '@/api/types';
import { MONTIME_BRAND, NIVASH_BRAND, type SiteBrand } from '@/constants/site-branding';

export const useTenantStore = defineStore('tenant', () => {
  const loaded = ref(false);
  const loading = ref(false);
  const isSingleBusiness = ref(false);
  const singleBusiness = ref<Business | null>(null);

  const brand = computed<SiteBrand>(() => {
    const base = isSingleBusiness.value ? NIVASH_BRAND : MONTIME_BRAND;

    if (isSingleBusiness.value && singleBusiness.value) {
      return {
        ...base,
        name: singleBusiness.value.title,
        shortName: singleBusiness.value.title,
        copyrightName: singleBusiness.value.title,
        aboutText:
          singleBusiness.value.description?.trim() || base.aboutText,
      };
    }

    return base;
  });

  const singleBusinessId = computed(() => singleBusiness.value?.id ?? null);

  function syncSingleBusiness(business: Business) {
    if (!isSingleBusiness.value) return;
    singleBusiness.value = business;
  }

  async function bootstrap() {
    if (loaded.value || loading.value) return;
    loading.value = true;
    try {
      const [categories, businesses] = await Promise.all([
        fetchBusinessCategories(),
        fetchBusinesses({ isActive: true }),
      ]);

      const activeCategories = categories.filter((c) => c.isActive);
      isSingleBusiness.value =
        activeCategories.length === 1 && businesses.length === 1;

      if (isSingleBusiness.value) {
        singleBusiness.value = await fetchBusiness(businesses[0].id);
      } else {
        singleBusiness.value = null;
      }
    } catch {
      isSingleBusiness.value = false;
      singleBusiness.value = null;
    } finally {
      loading.value = false;
      loaded.value = true;
    }
  }

  return {
    loaded,
    loading,
    isSingleBusiness,
    singleBusiness,
    singleBusinessId,
    brand,
    bootstrap,
    syncSingleBusiness,
  };
});