'use client';

import { useState } from 'react';

export default function SignUp() {
  const [formData, setFormData] = useState({
    name: '',
    email: '',
    password: '',
    confirmPassword: ''
  });
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState('');
  const [success, setSuccess] = useState(false);

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

    if (formData.password !== formData.confirmPassword) {
      setError('Passwords do not match');
      setLoading(false);
      return;
    }

    try {
      const response = await fetch(`${process.env.NEXT_PUBLIC_API_URL}/api/auth/register`, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          name: formData.name,
          email: formData.email,
          password: formData.password
        })
      });

      const data = await response.json();

      if (!response.ok) {
        setError(data.error || 'Registration failed');
      } else {
        setSuccess(true);
        setTimeout(() => {
          window.location.href = '/auth/signin';
        }, 2000);
      }
    } catch (err) {
      setError('Registration failed');
    } finally {
      setLoading(false);
    }
  };

  if (success) {
    return (
      <div className="min-h-screen bg-gradient-to-br from-slate-900 to-slate-800 flex items-center justify-center p-4">
        <div className="max-w-md w-full bg-slate-800/50 rounded-lg p-8 border border-slate-700 text-center">
          <div className="text-green-400 text-6xl mb-4">✓</div>
          <h2 className="text-2xl font-bold text-white mb-2">Account Created!</h2>
          <p className="text-slate-400">Redirecting to sign in...</p>
        </div>
      </div>
    );
  }

  return (
    <div className="min-h-screen bg-gradient-to-br from-slate-900 to-slate-800 flex items-center justify-center p-4">
      <div className="max-w-md w-full bg-slate-800/50 rounded-lg p-8 border border-slate-700">
        <h1 className="text-3xl font-bold text-center mb-2 bg-gradient-to-r from-blue-400 to-purple-500 bg-clip-text text-transparent">
          Fiscal Clone
        </h1>
        <p className="text-slate-400 text-center mb-8">Create your account</p>

        {error && (
          <div className="bg-red-500/20 border border-red-500 text-red-400 px-4 py-3 rounded-lg mb-6">
            {error}
          </div>
        )}

        <form onSubmit={handleSubmit} className="space-y-4">
          <div>
            <label className="block text-sm font-medium text-slate-300 mb-2">
              Name
            </label>
            <input
              type="text"
              value={formData.name}
              onChange={(e) => setFormData({...formData, name: e.target.value})}
              className="w-full bg-slate-700/50 border border-slate-600 rounded-lg px-4 py-3 text-white placeholder-slate-400 focus:outline-none focus:ring-2 focus:ring-blue-500"
              placeholder="John Doe"
              required
            />
          </div>

          <div>
            <label className="block text-sm font-medium text-slate-300 mb-2">
              Email
            </label>
            <input
              type="email"
              value={formData.email}
              onChange={(e) => setFormData({...formData, email: e.target.value})}
              className="w-full bg-slate-700/50 border border-slate-600 rounded-lg px-4 py-3 text-white placeholder-slate-400 focus:outline-none focus:ring-2 focus:ring-blue-500"
              placeholder="you@example.com"
              required
            />
          </div>

          <div>
            <label className="block text-sm font-medium text-slate-300 mb-2">
              Password
            </label>
            <input
              type="password"
              value={formData.password}
              onChange={(e) => setFormData({...formData, password: e.target.value})}
              className="w-full bg-slate-700/50 border border-slate-600 rounded-lg px-4 py-3 text-white placeholder-slate-400 focus:outline-none focus:ring-2 focus:ring-blue-500"
              placeholder="•••••••••"
              required
              minLength={8}
            />
          </div>

          <div>
            <label className="block text-sm font-medium text-slate-300 mb-2">
              Confirm Password
            </label>
            <input
              type="password"
              value={formData.confirmPassword}
              onChange={(e) => setFormData({...formData, confirmPassword: e.target.value})}
              className="w-full bg-slate-700/50 border border-slate-600 rounded-lg px-4 py-3 text-white placeholder-slate-400 focus:outline-none focus:ring-2 focus:ring-blue-500"
              placeholder="•••••••••"
              required
              minLength={8}
            />
          </div>

          <button
            type="submit"
            disabled={loading}
            className="w-full bg-gradient-to-r from-blue-500 to-purple-500 hover:from-blue-600 hover:to-purple-600 text-white font-semibold py-3 rounded-lg transition disabled:opacity-50 disabled:cursor-not-allowed"
          >
            {loading ? 'Creating Account...' : 'Create Account'}
          </button>
        </form>

        <p className="mt-6 text-center text-sm text-slate-400">
          Already have an account?{' '}
          <a href="/auth/signin" className="text-blue-400 hover:text-blue-300">
            Sign in
          </a>
        </p>
      </div>
    </div>
  );
}