'use client';

import { useState, useEffect } from 'react';
import { Card, CardHeader, CardContent } from '@/components/ui/Card';
import { Badge } from '@/components/ui/Badge';
import { Button } from '@/components/ui/Button';
import { formatDistanceToNow } from 'date-fns';
import { fr } from 'date-fns/locale';

interface SyncLog {
  id: string;
  source: string;
  status: string;
  message: string | null;
  tasksSync: number;
  createdAt: string;
}

interface JiraLogsProps {
  className?: string;
}

export function JiraLogs({ className = "" }: JiraLogsProps) {
  const [logs, setLogs] = useState<SyncLog[]>([]);
  const [isLoading, setIsLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);

  const fetchLogs = async () => {
    try {
      setIsLoading(true);
      setError(null);
      
      const response = await fetch('/api/jira/logs?limit=10');
      if (!response.ok) {
        throw new Error('Erreur lors de la récupération des logs');
      }
      
      const { data } = await response.json();
      setLogs(data);
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Erreur inconnue');
    } finally {
      setIsLoading(false);
    }
  };

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

  const getStatusBadge = (status: string) => {
    switch (status) {
      case 'success':
        return <Badge variant="success" size="sm">✓ Succès</Badge>;
      case 'error':
        return <Badge variant="danger" size="sm">✗ Erreur</Badge>;
      default:
        return <Badge variant="outline" size="sm">{status}</Badge>;
    }
  };

  return (
    <Card className={className}>
      <CardHeader className="pb-3">
        <div className="flex items-center justify-between">
          <div className="flex items-center gap-3">
            <div className="w-2 h-2 rounded-full bg-gray-400 animate-pulse"></div>
            <h3 className="font-mono text-sm font-bold text-gray-400 uppercase tracking-wider">
              LOGS JIRA
            </h3>
          </div>
          <Button
            onClick={fetchLogs}
            disabled={isLoading}
            variant="secondary"
            size="sm"
          >
            {isLoading ? '⟳' : '🔄'}
          </Button>
        </div>
      </CardHeader>

      <CardContent className="space-y-3">
        {error && (
          <div className="p-3 bg-[var(--destructive)]/10 border border-[var(--destructive)]/20 rounded text-sm text-[var(--destructive)] break-words overflow-hidden">
            {error}
          </div>
        )}

        {isLoading ? (
          <div className="space-y-2">
            {[...Array(3)].map((_, i) => (
              <div key={i} className="p-3 bg-[var(--card)] rounded animate-pulse">
                <div className="h-4 bg-[var(--border)] rounded w-3/4 mb-2"></div>
                <div className="h-3 bg-[var(--border)] rounded w-1/2"></div>
              </div>
            ))}
          </div>
        ) : logs.length === 0 ? (
          <div className="text-center py-8 text-[var(--muted-foreground)] text-sm">
            <div className="text-2xl mb-2">📋</div>
            Aucun log de synchronisation
          </div>
        ) : (
          <div className="space-y-2 max-h-96 overflow-y-auto">
            {logs.map((log) => (
              <div
                key={log.id}
                className="p-3 bg-[var(--card)] rounded border border-[var(--border)] hover:border-[var(--border)]/70 transition-colors"
              >
                <div className="flex items-center justify-between mb-2">
                  {getStatusBadge(log.status)}
                  <span className="text-xs text-[var(--muted-foreground)]">
                    {formatDistanceToNow(new Date(log.createdAt), {
                      addSuffix: true,
                      locale: fr
                    })}
                  </span>
                </div>
                
                <div className="flex items-center justify-between text-sm">
                  <span className="text-[var(--foreground)] truncate flex-1 mr-2">
                    {log.tasksSync > 0 ? (
                      `${log.tasksSync} tâche${log.tasksSync > 1 ? 's' : ''} synchronisée${log.tasksSync > 1 ? 's' : ''}`
                    ) : (
                      'Aucune tâche synchronisée'
                    )}
                  </span>
                </div>
                
                {log.message && (
                  <div className="mt-2 text-xs text-[var(--muted-foreground)] bg-[var(--background)] p-2 rounded font-mono max-h-20 overflow-y-auto break-words">
                    {log.message}
                  </div>
                )}
              </div>
            ))}
          </div>
        )}

        {/* Info */}
        <div className="text-xs text-[var(--muted-foreground)] p-2 border border-dashed border-[var(--border)] rounded">
          Les logs sont conservés pour traçabilité des synchronisations
        </div>
      </CardContent>
    </Card>
  );
}
