"use client";

import { useState, useEffect, useCallback } from 'react';
import { DashboardMetrics } from '@/lib/types';

export function useMetrics() {
  const [metrics, setMetrics] = useState<DashboardMetrics | null>(null);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);

  const fetchMetrics = useCallback(async () => {
    try {
      setLoading(true);
      const response = await fetch('/api/metrics');
      if (!response.ok) throw new Error('Erreur lors du chargement des métriques');
      const data = await response.json();
      setMetrics(data);
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Erreur inconnue');
    } finally {
      setLoading(false);
    }
  }, []);

  useEffect(() => {
    fetchMetrics();
  }, [fetchMetrics]);

  const refetch = useCallback(() => {
    return fetchMetrics();
  }, [fetchMetrics]);

  return { metrics, loading, error, refetch };
}