'use client';

import { Suspense, useState } from 'react';
import Link from 'next/link';
import Image from 'next/image';
import { useRouter, useSearchParams } from 'next/navigation';
import { Button, Input, Label, Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle } from '@horux/shared-ui';
import { confirmPasswordReset } from '@/lib/api/auth';
import { KeyRound, CheckCircle2, AlertTriangle } from 'lucide-react';

function ResetPasswordContent() {
  const router = useRouter();
  const searchParams = useSearchParams();
  const token = searchParams.get('token') || '';

  const [isLoading, setIsLoading] = useState(false);
  const [success, setSuccess] = useState(false);
  const [error, setError] = useState('');
  const [newPassword, setNewPassword] = useState('');
  const [confirmPassword, setConfirmPassword] = useState('');

  if (!token) {
    return (
      <Card>
        <CardHeader className="text-center">
          <div className="flex justify-center mb-4">
            <div className="rounded-full bg-red-100 p-3">
              <AlertTriangle className="h-10 w-10 text-red-600" />
            </div>
          </div>
          <CardTitle>Enlace inválido</CardTitle>
          <CardDescription>
            El enlace no incluye un token de recuperación válido. Solicita uno nuevo desde la pantalla de login.
          </CardDescription>
        </CardHeader>
        <CardFooter>
          <Button className="w-full" asChild>
            <Link href="/forgot-password">Solicitar nuevo enlace</Link>
          </Button>
        </CardFooter>
      </Card>
    );
  }

  async function handleSubmit(e: React.FormEvent<HTMLFormElement>) {
    e.preventDefault();
    setError('');

    if (newPassword.length < 8) {
      setError('La contraseña debe tener al menos 8 caracteres');
      return;
    }
    if (newPassword !== confirmPassword) {
      setError('Las contraseñas no coinciden');
      return;
    }

    setIsLoading(true);
    try {
      await confirmPasswordReset(token, newPassword);
      setSuccess(true);
      setTimeout(() => router.push('/login'), 3000);
    } catch (err: any) {
      setError(err.response?.data?.message || 'Error al actualizar contraseña');
    } finally {
      setIsLoading(false);
    }
  }

  if (success) {
    return (
      <Card>
        <CardHeader className="text-center">
          <div className="flex justify-center mb-4">
            <div className="rounded-full bg-green-100 p-3">
              <CheckCircle2 className="h-10 w-10 text-green-600" />
            </div>
          </div>
          <CardTitle>Contraseña actualizada</CardTitle>
          <CardDescription>
            Tu contraseña fue cambiada exitosamente. Redireccionando al login...
          </CardDescription>
        </CardHeader>
        <CardFooter>
          <Button className="w-full" asChild>
            <Link href="/login">Ir al login</Link>
          </Button>
        </CardFooter>
      </Card>
    );
  }

  return (
    <Card>
      <CardHeader className="text-center">
        <div className="flex justify-center mb-4">
          <Image src="/logo.jpg" alt="Horux360" width={80} height={80} className="rounded-full" priority />
        </div>
        <CardTitle className="text-2xl flex items-center justify-center gap-2">
          <KeyRound className="h-5 w-5" />
          Nueva contraseña
        </CardTitle>
        <CardDescription>
          Ingresa tu nueva contraseña. Mínimo 8 caracteres.
        </CardDescription>
      </CardHeader>
      <form onSubmit={handleSubmit}>
        <CardContent className="space-y-4">
          {error && (
            <div className="p-3 text-sm text-destructive bg-destructive/10 rounded-md">
              {error}
            </div>
          )}
          <div className="space-y-2">
            <Label htmlFor="newPassword">Nueva contraseña</Label>
            <Input
              id="newPassword"
              type="password"
              value={newPassword}
              onChange={e => setNewPassword(e.target.value)}
              placeholder="••••••••"
              required
              minLength={8}
              autoFocus
            />
          </div>
          <div className="space-y-2">
            <Label htmlFor="confirmPassword">Confirmar contraseña</Label>
            <Input
              id="confirmPassword"
              type="password"
              value={confirmPassword}
              onChange={e => setConfirmPassword(e.target.value)}
              placeholder="••••••••"
              required
              minLength={8}
            />
          </div>
          <p className="text-xs text-muted-foreground">
            Al actualizar, se cerrarán todas tus sesiones activas por seguridad. Tendrás que volver a iniciar sesión.
          </p>
        </CardContent>
        <CardFooter className="flex flex-col gap-2">
          <Button type="submit" className="w-full" disabled={isLoading || !newPassword || !confirmPassword}>
            {isLoading ? 'Actualizando...' : 'Actualizar contraseña'}
          </Button>
          <Link href="/login" className="text-sm text-primary hover:underline">
            Volver al login
          </Link>
        </CardFooter>
      </form>
    </Card>
  );
}

export default function ResetPasswordPage() {
  return (
    <div className="min-h-screen flex items-center justify-center p-4">
      <div className="w-full max-w-md">
        <Suspense fallback={<Card><CardContent className="py-8 text-center">Cargando...</CardContent></Card>}>
          <ResetPasswordContent />
        </Suspense>
      </div>
    </div>
  );
}