import { defineStore } from "pinia";
import { ref, computed } from "vue";
import FinancialStatisticsService from "@/services/financialStatistics";
import type { FinancialStatistics } from "@/services/financialStatistics";

export const useFinancialStatisticsStore = defineStore(
  "financialStatistics",
  () => {
    const statistics = ref<FinancialStatistics | null>(null);
    const loading = ref(false);
    const error = ref<string | null>(null);

    const isLoading = computed(() => loading.value);
    const hasError = computed(() => error.value !== null);
    const getError = computed(() => error.value);
    const hasData = computed(() => statistics.value !== null);

    async function fetchStatistics(): Promise<void> {
      loading.value = true;
      error.value = null;
      try {
        statistics.value = await FinancialStatisticsService.getStatistics();
      } catch (err: unknown) {
        error.value =
          err instanceof Error
            ? err.message
            : "Erreur lors du chargement des statistiques financières.";
      } finally {
        loading.value = false;
      }
    }

    function clearStatistics(): void {
      statistics.value = null;
      error.value = null;
    }

    return {
      statistics,
      loading,
      error,
      isLoading,
      hasError,
      getError,
      hasData,
      fetchStatistics,
      clearStatistics,
    };
  }
);