'use client';

import { useEffect, useState } from 'react';
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';
import { getSyncStatus, startSync } from '@/lib/api/sat';
import type { SatSyncStatusResponse } from '@horux/shared';

interface SyncStatusProps {
  fielConfigured: boolean;
  onSyncStarted?: () => void;
}

const statusLabels: Record<string, string> = {
  pending: 'Pendiente',
  running: 'En progreso',
  completed: 'Completado',
  failed: 'Fallido',
};

const statusColors: Record<string, string> = {
  pending: 'bg-yellow-100 text-yellow-800',
  running: 'bg-blue-100 text-blue-800',
  completed: 'bg-green-100 text-green-800',
  failed: 'bg-red-100 text-red-800',
};

export function SyncStatus({ fielConfigured, onSyncStarted }: SyncStatusProps) {
  const [status, setStatus] = useState<SatSyncStatusResponse | null>(null);
  const [loading, setLoading] = useState(true);
  const [startingSync, setStartingSync] = useState(false);
  const [error, setError] = useState('');
  const [showCustomDate, setShowCustomDate] = useState(false);
  const [dateFrom, setDateFrom] = useState('');
  const [dateTo, setDateTo] = useState('');

  const fetchStatus = async () => {
    try {
      const data = await getSyncStatus();
      setStatus(data);
    } catch (err) {
      console.error('Error fetching sync status:', err);
    } finally {
      setLoading(false);
    }
  };

  useEffect(() => {
    if (fielConfigured) {
      fetchStatus();
      // Actualizar cada 30 segundos si hay sync activo
      const interval = setInterval(fetchStatus, 30000);
      return () => clearInterval(interval);
    } else {
      setLoading(false);
    }
  }, [fielConfigured]);

  const handleStartSync = async (type: 'initial' | 'daily', customDates?: boolean) => {
    setStartingSync(true);
    setError('');
    try {
      const params: { type: 'initial' | 'daily'; dateFrom?: string; dateTo?: string } = { type };

      if (customDates && dateFrom && dateTo) {
        // Convertir a formato completo con hora
        params.dateFrom = `${dateFrom}T00:00:00`;
        params.dateTo = `${dateTo}T23:59:59`;
      }

      await startSync(params);
      await fetchStatus();
      setShowCustomDate(false);
      onSyncStarted?.();
    } catch (err: any) {
      setError(err.response?.data?.error || 'Error al iniciar sincronizacion');
    } finally {
      setStartingSync(false);
    }
  };

  if (!fielConfigured) {
    return (
      <Card>
        <CardHeader>
          <CardTitle>Sincronizacion SAT</CardTitle>
          <CardDescription>
            Configura tu FIEL para habilitar la sincronizacion automatica
          </CardDescription>
        </CardHeader>
        <CardContent>
          <p className="text-muted-foreground">
            La sincronizacion con el SAT requiere una FIEL valida configurada.
          </p>
        </CardContent>
      </Card>
    );
  }

  if (loading) {
    return (
      <Card>
        <CardHeader>
          <CardTitle>Sincronizacion SAT</CardTitle>
        </CardHeader>
        <CardContent>
          <p className="text-muted-foreground">Cargando estado...</p>
        </CardContent>
      </Card>
    );
  }

  return (
    <Card>
      <CardHeader>
        <CardTitle>Sincronizacion SAT</CardTitle>
        <CardDescription>
          Estado de la sincronizacion automatica de CFDIs
        </CardDescription>
      </CardHeader>
      <CardContent className="space-y-4">
        {status?.hasActiveSync && status.currentJob && (
          <div className="p-4 bg-blue-50 rounded-lg">
            <div className="flex items-center gap-2 mb-2">
              <span className={`px-2 py-1 rounded text-sm ${statusColors[status.currentJob.status]}`}>
                {statusLabels[status.currentJob.status]}
              </span>
              <span className="text-sm text-muted-foreground">
                {status.currentJob.type === 'initial' ? 'Sincronizacion inicial' : 'Sincronizacion diaria'}
              </span>
            </div>
            {status.currentJob.status === 'running' && (
              <div className="w-full bg-gray-200 rounded-full h-2 mt-2">
                <div
                  className="bg-blue-600 h-2 rounded-full transition-all"
                  style={{ width: `${status.currentJob.progressPercent}%` }}
                />
              </div>
            )}
            <p className="text-sm mt-2">
              {status.currentJob.cfdisDownloaded} CFDIs descargados
            </p>
          </div>
        )}

        {status?.lastCompletedJob && !status.hasActiveSync && (
          <div className="p-4 bg-green-50 rounded-lg">
            <div className="flex items-center gap-2 mb-2">
              <span className={`px-2 py-1 rounded text-sm ${statusColors.completed}`}>
                Ultima sincronizacion exitosa
              </span>
            </div>
            <p className="text-sm">
              {new Date(status.lastCompletedJob.completedAt!).toLocaleString('es-MX')}
            </p>
            <p className="text-sm text-muted-foreground">
              {status.lastCompletedJob.cfdisInserted} CFDIs nuevos, {status.lastCompletedJob.cfdisUpdated} actualizados
            </p>
          </div>
        )}

        <div className="grid grid-cols-2 gap-4 text-center">
          <div className="p-4 bg-gray-50 rounded-lg">
            <p className="text-2xl font-bold">{status?.totalCfdisSynced || 0}</p>
            <p className="text-sm text-muted-foreground">CFDIs sincronizados</p>
          </div>
          <div className="p-4 bg-gray-50 rounded-lg">
            <p className="text-2xl font-bold">3:00 AM</p>
            <p className="text-sm text-muted-foreground">Sincronizacion diaria</p>
          </div>
        </div>

        {error && (
          <p className="text-sm text-red-500">{error}</p>
        )}

        {/* Formulario de fechas personalizadas */}
        {showCustomDate && (
          <div className="p-4 bg-gray-50 rounded-lg space-y-4">
            <div className="grid grid-cols-2 gap-4">
              <div>
                <Label htmlFor="dateFrom">Fecha inicio</Label>
                <Input
                  id="dateFrom"
                  type="date"
                  value={dateFrom}
                  onChange={(e) => setDateFrom(e.target.value)}
                  max={dateTo || undefined}
                />
              </div>
              <div>
                <Label htmlFor="dateTo">Fecha fin</Label>
                <Input
                  id="dateTo"
                  type="date"
                  value={dateTo}
                  onChange={(e) => setDateTo(e.target.value)}
                  min={dateFrom || undefined}
                />
              </div>
            </div>
            <div className="flex gap-2">
              <Button
                disabled={startingSync || status?.hasActiveSync || !dateFrom || !dateTo}
                onClick={() => handleStartSync('initial', true)}
                className="flex-1"
              >
                {startingSync ? 'Iniciando...' : 'Sincronizar periodo'}
              </Button>
              <Button
                variant="outline"
                onClick={() => setShowCustomDate(false)}
              >
                Cancelar
              </Button>
            </div>
          </div>
        )}

        <div className="flex gap-3">
          <Button
            variant="outline"
            disabled={startingSync || status?.hasActiveSync}
            onClick={() => handleStartSync('daily')}
            className="flex-1"
          >
            {startingSync ? 'Iniciando...' : 'Sincronizar mes actual'}
          </Button>
          <Button
            variant="outline"
            disabled={startingSync || status?.hasActiveSync}
            onClick={() => setShowCustomDate(!showCustomDate)}
            className="flex-1"
          >
            Periodo personalizado
          </Button>
        </div>

        {!status?.lastCompletedJob && (
          <Button
            disabled={startingSync || status?.hasActiveSync}
            onClick={() => handleStartSync('initial')}
            className="w-full"
          >
            {startingSync ? 'Iniciando...' : 'Sincronizacion inicial (6 anos)'}
          </Button>
        )}
      </CardContent>
    </Card>
  );
}