import { useState, useEffect, useCallback } from 'react';
import { getAvailableJiraFilters, getFilteredJiraAnalytics } from '@/actions/jira-filters';
import { AvailableFilters, JiraAnalyticsFilters, JiraAnalytics } from '@/lib/types';
import { JiraAdvancedFiltersService } from '@/services/jira-advanced-filters';

export function useJiraFilters() {
  const [availableFilters, setAvailableFilters] = useState<AvailableFilters>({
    components: [],
    fixVersions: [],
    issueTypes: [],
    statuses: [],
    assignees: [],
    labels: [],
    priorities: []
  });
  
  const [activeFilters, setActiveFilters] = useState<Partial<JiraAnalyticsFilters>>(
    JiraAdvancedFiltersService.createEmptyFilters()
  );
  
  const [filteredAnalytics, setFilteredAnalytics] = useState<JiraAnalytics | null>(null);
  const [isLoadingFilters, setIsLoadingFilters] = useState(false);
  const [isLoadingAnalytics, setIsLoadingAnalytics] = useState(false);
  const [error, setError] = useState<string | null>(null);

  // Charger les filtres disponibles
  const loadAvailableFilters = useCallback(async () => {
    setIsLoadingFilters(true);
    setError(null);
    
    try {
      const result = await getAvailableJiraFilters();
      
      if (result.success && result.data) {
        setAvailableFilters(result.data);
      } else {
        setError(result.error || 'Erreur lors du chargement des filtres');
      }
    } catch {
      setError('Erreur de connexion');
    } finally {
      setIsLoadingFilters(false);
    }
  }, []);

  // Appliquer les filtres et récupérer les analytics filtrées
  const applyFilters = useCallback(async (filters: Partial<JiraAnalyticsFilters>) => {
    setIsLoadingAnalytics(true);
    setError(null);
    
    try {
      const result = await getFilteredJiraAnalytics(filters);
      
      if (result.success && result.data) {
        setFilteredAnalytics(result.data);
        setActiveFilters(filters);
      } else {
        setError(result.error || 'Erreur lors du filtrage');
      }
    } catch {
      setError('Erreur de connexion');
    } finally {
      setIsLoadingAnalytics(false);
    }
  }, []);

  // Effacer tous les filtres
  const clearFilters = useCallback(() => {
    const emptyFilters = JiraAdvancedFiltersService.createEmptyFilters();
    setActiveFilters(emptyFilters);
    setFilteredAnalytics(null);
  }, []);

  // Chargement initial des filtres disponibles
  useEffect(() => {
    loadAvailableFilters();
  }, [loadAvailableFilters]);

  return {
    // État
    availableFilters,
    activeFilters,
    filteredAnalytics,
    isLoadingFilters,
    isLoadingAnalytics,
    error,
    
    // Actions
    loadAvailableFilters,
    applyFilters,
    clearFilters,
    
    // Helpers
    hasActiveFilters: JiraAdvancedFiltersService.hasActiveFilters(activeFilters),
    activeFiltersCount: JiraAdvancedFiltersService.countActiveFilters(activeFilters),
    filtersSummary: JiraAdvancedFiltersService.getFiltersSummary(activeFilters)
  };
}