import React, { StrictMode } from 'react'
import { createRoot } from 'react-dom/client'
import './index.css'
import App from './App.jsx'

// Split hosting: when VITE_API_URL is set (e.g. https://api.mytechtrain.com), calls to /api/*
// go to that origin and carry the refresh cookie. Unset in dev, where the Vite proxy handles /api.
const API_URL = (import.meta.env.VITE_API_URL || '').replace(/\/$/, '');
if (API_URL) {
  const nativeFetch = window.fetch.bind(window);
  window.fetch = (input, init = {}) =>
    typeof input === 'string' && input.startsWith('/api/')
      ? nativeFetch(API_URL + input, { credentials: 'include', ...init })
      : nativeFetch(input, init);
}

class ErrorBoundary extends React.Component {
  constructor(props) {
    super(props);
    this.state = { hasError: false, error: null };
  }

  static getDerivedStateFromError(error) {
    return { hasError: true, error };
  }

  componentDidCatch(error, errorInfo) {
    console.error("Uncaught error:", error, errorInfo);
  }

  render() {
    if (this.state.hasError) {
      return (
        <div style={{ padding: '2rem', color: 'red' }}>
          <h1>Something went wrong.</h1>
          <pre>{this.state.error.toString()}</pre>
        </div>
      );
    }

    return this.props.children;
  }
}

createRoot(document.getElementById('root')).render(
  <StrictMode>
    <ErrorBoundary>
      <App />
    </ErrorBoundary>
  </StrictMode>,
)