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import React, { useContext, useState } from 'react'
const MyContext = React.createContext({})

const App: React.FC = () => {

  // Using Provider component under context api for providing
  // value to our context
  const MyContextProvider = MyContext.Provider

  // Our Language state with default value 'EN' which is
  // also passed down to our context intially
  const [lang, setLang] = useState('EN')

  // Function to change our language state which will automatically
  // trigger change in our context value
  const changeLang = () => lang === 'EN' ? setLang('FR') : setLang('EN')

    return (
      <>
      <h1>React Context API Example With Hooks</h1>
        <MyContextProvider value={{lang : lang}}>
          {/* ContextConsumer Component encapsulated under context provider */}
          <ContextConsumer />
        </MyContextProvider>
      <button onClick={() => changeLang()}>Change Language</button>
      </>
    );
}


const ContextConsumer: React.FC = () => {
  // Using useState Hook to consume Context
    const context = useContext(MyContext)
    return (
    <div>
      <p>Current Language: {context.lang}</p>
    </div>
    );
}

export default App;