'use client';

import { useState } from 'react';
import { useRouter } from 'next/navigation';
import Link from 'next/link';
import Image from 'next/image';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';
import { Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle } from '@/components/ui/card';
import { login } from '@/lib/api/auth';
import { useAuthStore } from '@/stores/auth-store';

export default function LoginPage() {
  const router = useRouter();
  const { setUser, setTokens } = useAuthStore();
  const [isLoading, setIsLoading] = useState(false);
  const [error, setError] = useState('');

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

    const formData = new FormData(e.currentTarget);
    const email = formData.get('email') as string;
    const password = formData.get('password') as string;

    try {
      const response = await login({ email, password });
      setTokens(response.accessToken, response.refreshToken);
      setUser(response.user);
    
      const STORAGE_KEY = 'horux360:onboarding_seen_v1';
      const seen = typeof window !== 'undefined' && localStorage.getItem(STORAGE_KEY) === '1';
    
      router.push(seen ? '/dashboard' : '/onboarding');
    } catch (err: any) {
      setError(err.response?.data?.message || 'Error al iniciar sesión');
    } finally {
      setIsLoading(false);
    }
  }

  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">Iniciar Sesión</CardTitle>
        <CardDescription>
          Ingresa tus credenciales para acceder a tu cuenta
        </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="email">Email</Label>
            <Input
              id="email"
              name="email"
              type="email"
              placeholder="tu@email.com"
              required
            />
          </div>
          <div className="space-y-2">
            <Label htmlFor="password">Contraseña</Label>
            <Input
              id="password"
              name="password"
              type="password"
              placeholder="••••••••"
              required
            />
          </div>
        </CardContent>
        <CardFooter className="flex flex-col gap-4">
          <Button type="submit" className="w-full" disabled={isLoading}>
            {isLoading ? 'Iniciando sesión...' : 'Iniciar Sesión'}
          </Button>
          <p className="text-sm text-muted-foreground text-center">
            ¿No tienes cuenta?{' '}
            <Link href="/register" className="text-primary hover:underline">
              Regístrate
            </Link>
          </p>
        </CardFooter>
      </form>
    </Card>
  );
}