02. Shopping List

function shoppingList(inputArray) {
  let productsArray = inputArray[0].split("!");
  let index = 1;
  let command;

  while ((command = inputArray[index]) !== "Go Shopping!") {
    let commandArray = command.split(" ");
    let action = commandArray[0];
    let item = commandArray[1];
    let newItem = commandArray[2];

    switch (action) {
      case "Urgent":
        urgent(item);
        break;
      case "Unnecessary":
        unnecessary(item);
        break;
      case "Correct":
        correct(item, newItem);
        break;
      case "Rearrange":
        rearrange(item);
        break;
    }

    function urgent(item) {
      if (!productsArray.includes(item)) {
        productsArray.unshift(item);
      }
    }

    function unnecessary(item) {
      if (productsArray.includes(item)) {
        let indexToRemove = productsArray.indexOf(item);
        productsArray.splice(indexToRemove, 1);
      }
    }

    function correct(item, newItem) {
      if (productsArray.includes(item)) {
        let indexToRename = productsArray.indexOf(item);
        productsArray[indexToRename] = newItem;
      }
    }

    function rearrange(item) {
      if (productsArray.includes(item)) {
        let indexToMove = productsArray.indexOf(item);
        let itemToMove = productsArray.splice(indexToMove, 1).join('');
        productsArray.push(itemToMove);
      }
    }

    index++;
    }
    console.log(productsArray.join(', '))
}