deckhearth/pages/login.js

import { useState } from 'react';
import { useRouter } from 'next/router';
import Link from 'next/link';
import AuthLayout from '../components/AuthLayout';
import AnimatedFireLogo from '../components/AnimatedFireLogo';
import { VOCAB } from '../lib/collection-vocabulary.js';

export default function Login() {
  const router = useRouter();
  const [formData, setFormData] = useState({
    email: '',
    password: ''
  });
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState('');

  const handleInputChange = (field, value) => {
    setFormData(prev => ({
      ...prev,
      [field]: value
    }));
    // Clear error when user starts typing
    if (error) setError('');
  };

  const handleSubmit = async (e) => {
    e.preventDefault();
    setLoading(true);
    setError('');

    try {
      const response = await fetch('/api/auth/login', {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify(formData)
      });

      const data = await response.json();

      if (response.ok) {
        // Store the JWT token in localStorage
        localStorage.setItem('auth_token', data.token);
        
        // Redirect to admin panel or dashboard
        if (data.user.role === 'admin') {
          router.push('/admin/card-editor');
        } else {
          router.push('/dashboard');
        }
      } else {
        setError(data.error || 'Login failed');
      }
    } catch (error) {
      console.error('Login error:', error);
      setError('Network error. Please try again.');
    } finally {
      setLoading(false);
    }
  };

  return (
    <AuthLayout>
      <div className="min-h-screen flex items-center justify-center py-12 px-4 sm:px-6 lg:px-8">
        <div className="max-w-md w-full space-y-8">
          <div>
            <div className="text-center">
              <div className="mb-6 flex justify-center">
                <AnimatedFireLogo size={100} />
              </div>
              <h2 className="text-3xl font-bold gradient-text-flame mb-2">
                Welcome to Deck Hearth
              </h2>
              <p className="mt-2 text-sm" style={{ color: 'var(--text-secondary)' }}>
                Sign in to access {VOCAB.MY_COLLECTION}
              </p>
            </div>
          </div>

          <div 
            className="p-8 rounded-2xl shadow-2xl backdrop-blur-sm border border-opacity-20" 
            style={{ 
              backgroundColor: 'rgba(var(--bg-secondary-rgb), 0.85)',
              borderColor: 'var(--border)'
            }}
          >
            <form onSubmit={handleSubmit} className="space-y-6">
              {error && (
                <div className="p-4 rounded-lg bg-red-500 bg-opacity-10 border border-red-500 border-opacity-20 backdrop-blur-sm">
                  <p className="text-red-400 text-sm">{error}</p>
                </div>
              )}

              <div>
                <label htmlFor="email" className="block text-sm font-medium mb-2" style={{ color: 'var(--text-primary)' }}>
                  Email Address
                </label>
                <input
                  id="email"
                  name="email"
                  type="email"
                  autoComplete="email"
                  required
                  value={formData.email}
                  onChange={(e) => handleInputChange('email', e.target.value)}
                  className="w-full px-4 py-3 rounded-lg border transition-all duration-200 focus:ring-2 focus:ring-orange-500 focus:border-transparent backdrop-blur-sm"
                  style={{
                    backgroundColor: 'rgba(var(--bg-primary-rgb), 0.7)',
                    borderColor: 'var(--border)',
                    color: 'var(--text-primary)'
                  }}
                  placeholder="Enter your email"
                />
              </div>

              <div>
                <label htmlFor="password" className="block text-sm font-medium mb-2" style={{ color: 'var(--text-primary)' }}>
                  Password
                </label>
                <input
                  id="password"
                  name="password"
                  type="password"
                  autoComplete="current-password"
                  required
                  value={formData.password}
                  onChange={(e) => handleInputChange('password', e.target.value)}
                  className="w-full px-4 py-3 rounded-lg border transition-all duration-200 focus:ring-2 focus:ring-orange-500 focus:border-transparent backdrop-blur-sm"
                  style={{
                    backgroundColor: 'rgba(var(--bg-primary-rgb), 0.7)',
                    borderColor: 'var(--border)',
                    color: 'var(--text-primary)'
                  }}
                  placeholder="Enter your password"
                />
              </div>

              <div>
                <button
                  type="submit"
                  disabled={loading}
                  className={`w-full px-4 py-3 rounded-lg font-medium transition-all duration-200 ${
                    loading 
                      ? 'opacity-50 cursor-not-allowed' 
                      : 'gradient-bg-ember text-white hover:shadow-xl transform hover:scale-105 hover:shadow-orange-500/20'
                  }`}
                >
                  {loading ? (
                    <div className="flex items-center justify-center">
                      <div className="animate-spin rounded-full h-5 w-5 border-b-2 border-white mr-2"></div>
                      Signing in...
                    </div>
                  ) : (
                    'Sign in to Deck Hearth'
                  )}
                </button>
              </div>

              <div className="text-center">
                <p className="text-sm" style={{ color: 'var(--text-secondary)' }}>
                  Don&apos;t have an account?{' '}
                  <Link href="/signup" className="font-medium gradient-text-flame hover:underline">
                    Sign up here
                  </Link>
                </p>
              </div>
            </form>
          </div>
        </div>
      </div>
    </AuthLayout>
  );
}