text: let nextTodoId = 0
  export const addTodo = text => {
    console.log("actions: [addTodo]: " + text)
    return {
      type: 'ADD_TODO',
      id: nextTodoId++,
      text
    }
  }
  
  export const setVisibilityFilter = filter => {
    return {
      type: 'SET_VISIBILITY_FILTER',
      filter
    }
  }
  
  export const toggleTodo = id => {
    return {
      type: 'TOGGLE_TODO',
      id
    }
  }