import React from 'react'
import App from './you-app.js'
import {StateProvider} from 'evilfactorylabs/global-state'

const initialState = { todo: [] } 

function todoReducer(state, action) {
 switch (action.type) {
   case "ADD_TODO":
     return {
       ...state,
       todo: [...state.todo, action.todo]
     };
   default:
     return state;
 }
}

ReactDOM.render(
   <StateProvider reducer={todoReducer} initialState={initialState}>
     <App/>
   </StateProvider>
, document.getElementById('root'))

import {useGlobalState} from '@evilfactorylabs/global-state'

...
const createTodo = (state, action, todo) => {
 return action({
   type: 'ADD_TODO',
   data: todo,
 })
} 

const [,addTodo] = useGlobalState(createTodo)

addTodo({title: 'New Task'})
...