const items = (state = getDefaultItems(), action) => {
 switch (action.type) {
   case 'ADD_ITEM':
     return [
       ...state,
       action.data
     ]
   default:
     return state
 }
}

function getDefaultItems() {
 const params = new URLSearchParams(window.location.hash.split("?")[1]);
 const items = Array.from(params.entries()).filter(item => item[0] === 'item').map(item => item[1]);
 return items;
}

export default items