How to update prompt with useState hook? How to call the an environment variable from my function? Thanks for looking at my code.

[shaenr]

Two related problems:

1. How to update prompt with useState hook?
   I need to be able to run setPromptText() somewhere to update the prompt, but... I don't know how since the component doesn't have such a function to do that and I don't know how to extend it if its not a class.

2. How to call the an environment variable from my function?
   Look at the buildPrompt function and see the comment where I point out my failing attempt to get the cwd from environment variables in state.

This is my code

import React, { useState } from 'react';

import ReactTerminalStateless, { 
  ReactOutputRenderers 
} from 'react-terminal-component';

import { 
  EmulatorState, 
  getEnvironmentVariable 
} from 'javascript-terminal';

import myTheme from './myTheme';
import Level from './levels/level1/index';

import "./app.css";

// Define Emulator State From Modules
const emulatorState = EmulatorState.create({
  'fs': Level.FS,
  'outputs': Level.Output,
  'history': Level.History,
  'environmentVariables': Level.Env,
  'commandMapping': Level.Commands,
})

const buildPrompt = (state) => {
  const headDelim = "┌──("
  const user = Level.Data.user
  const atChar = "@"
  const host = Level.Data.hostname
  const pathDelim = ")-["

// NOTE: This results in TypeError: Object(...) is not a function so Im not doing this right either.
  const cwd = getEnvironmentVariable(state.getEnvVariables(), 'cwd')        


  const tailDelim = "]\n└─$ "
  return headDelim + user + atChar + host + pathDelim + cwd + tailDelim
}

// Component: App
export default function App() {
  // Declaring State Hooks
  const [input, setInput] = useState('');
  const [emuState, setEmuState] = useState(emulatorState);
  const [promptText, setPromptText] = useState(buildPrompt(emuState))

  return (
    <ReactTerminalStateless
      emulatorState={emuState}
      theme={ myTheme }
      promptSymbol={promptText}
      outputRenderers={ ReactOutputRenderers  }
      inputStr={input}
      onInputChange={( (inp) => setInput(inp) )}
      onStateChange={( (eS) => setEmuState(eS) )}
      clickToFocus 
    />
  );
}

Any tips for a newbie? Thank you.