programming.js

// Get the price of apples from a fruit store
function getApplePrice(fruitStore) {
  'start visiting the fruit store';
  'walk to the fruit shop';

  if('the fruit store was not open'){
    'stop the process of visiting the fruit store';
    return false;
  }

  if('the fruit store did not have apples'){
    'stop the process of visiting the fruit store';
    return false;
  }

  'Ask the shopkeeper the price of the apples';
  return thePriceOfApples;
}

// Buy apples from the fruit store
function buyApples(fruitStore, weight) {
  'walk to the fruit store';
  
  while('the weight of the apples in this bag' < weight){
    'choose the best of all the red apples that are not in the bag';
  
    if('this apple can fit into the current bag'){
      'load this apple into the current bag';
    } else {
      // switch the bag
      if('I still have some spare bags') {
        'pick one of these and make it the current bag';
      } else {
        try('ask the shopkeeper for a bag') {
          'take the bag the shopkeeper gave me as the current bag';
        } catch ('the shopkeeper refused to give me the bag') {
          'take all the apples out of all my bags';
          'stop the process of visiting the fruit store';
        }
      }
    }
  }
  
  'based on the total weight of all the apples in all my bags and \
    the unit price given by the store owner, calculate the price I should pay'
  
  'ask the shopkeeper for my share of the money'
  
  if('the price I calculated' == 'the price given by the shopkeeper') {
    'pay the money to the shopkeeper';
  } else {
    'recalculate the price of the apples';
    'explain the price I have calculated to the shopkeeper and ask him if he agrees';
    if('he agrees'){
      'pay the money to the shopkeeper';
    } else {
      'take all the apples out of all my bags';
      'stop the process of visiting the fruit store';
    }
  }
}


'the apple purchase process begins';

'Declare a variable `lowestPriceFruitStore`, used to represent the fruit store with the lowest apple prices.';
for(fruitStore of [fruitStroe0, fruitStroe1, fruitStroe2]){
  getApplePrice(fruitStore);

  if('current apple prices in the fruit store' < 'the apple prices of lowestPriceFruitStore'){
    'assign the current fruit store to lowestPriceFruitStore'
  }
}

buyApples(lowestPriceFruitStore)

'the apple purchase process ends';