relnet/frontend/src/components/auth/Register.tsx

import React, { useState } from 'react';
import { useAuth } from '../../context/AuthContext';
import { useNavigate } from 'react-router-dom';

const Register: React.FC = () => {
    const [username, setUsername] = useState('');
    const [email, setEmail] = useState('');
    const [password, setPassword] = useState('');
    const [confirmPassword, setConfirmPassword] = useState('');
    const [error, setError] = useState<string | null>(null);
    const [loading, setLoading] = useState(false);
    const { register } = useAuth();
    const navigate = useNavigate();

    const handleSubmit = async (e: React.FormEvent) => {
        e.preventDefault();
        setError(null);

        // Basic validation
        if (password !== confirmPassword) {
            setError('Passwords do not match');
            return;
        }

        if (password.length < 6) {
            setError('Password must be at least 6 characters');
            return;
        }

        setLoading(true);

        try {
            await register({ username, email, password });
            navigate('/networks');
        } catch (err: any) {
            setError(err.response?.data?.message || 'Registration failed. Please try again.');
        } finally {
            setLoading(false);
        }
    };

    return (
        <div className="flex items-center justify-center min-h-screen bg-gray-100">
            <div className="w-full max-w-md p-6 bg-white rounded-lg shadow-md">
                <h2 className="text-2xl font-bold mb-6 text-center">Register</h2>

                {error && (
                    <div className="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4">
                        {error}
                    </div>
                )}

                <form onSubmit={handleSubmit}>
                    <div className="mb-4">
                        <label className="block text-gray-700 text-sm font-bold mb-2" htmlFor="username">
                            Username
                        </label>
                        <input
                            id="username"
                            type="text"
                            className="w-full px-3 py-2 border border-gray-300 rounded"
                            value={username}
                            onChange={(e) => setUsername(e.target.value)}
                            required
                        />
                    </div>

                    <div className="mb-4">
                        <label className="block text-gray-700 text-sm font-bold mb-2" htmlFor="email">
                            Email
                        </label>
                        <input
                            id="email"
                            type="email"
                            className="w-full px-3 py-2 border border-gray-300 rounded"
                            value={email}
                            onChange={(e) => setEmail(e.target.value)}
                            required
                        />
                    </div>

                    <div className="mb-4">
                        <label className="block text-gray-700 text-sm font-bold mb-2" htmlFor="password">
                            Password
                        </label>
                        <input
                            id="password"
                            type="password"
                            className="w-full px-3 py-2 border border-gray-300 rounded"
                            value={password}
                            onChange={(e) => setPassword(e.target.value)}
                            required
                        />
                    </div>

                    <div className="mb-6">
                        <label className="block text-gray-700 text-sm font-bold mb-2" htmlFor="confirmPassword">
                            Confirm Password
                        </label>
                        <input
                            id="confirmPassword"
                            type="password"
                            className="w-full px-3 py-2 border border-gray-300 rounded"
                            value={confirmPassword}
                            onChange={(e) => setConfirmPassword(e.target.value)}
                            required
                        />
                    </div>

                    <div className="flex items-center justify-between">
                        <button
                            type="submit"
                            className="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded focus:outline-none focus:shadow-outline"
                            disabled={loading}
                        >
                            {loading ? 'Registering...' : 'Register'}
                        </button>
                        <a
                            href="/login"
                            className="inline-block align-baseline font-bold text-sm text-blue-500 hover:text-blue-800"
                        >
                            Login
                        </a>
                    </div>
                </form>
            </div>
        </div>
    );
};

export default Register;