utils.js

module.exports = {
  /*
    threshold - Once bot.food is lower than this, we can eat the item.
    filter - (Optional) An array of items to eat ['apple', 'cooked_beef']
  */
  eat: function(threshold, filter = []) {
    return new Promise(async function(resolve, reject) {
      if (bot.food > threshold) return reject(new Error("threshold")); // The bot had more hunger than the threshold
      let items = getItems(); // Get a list of food items sorted by food points (Optional : filter)
      if (!items.length) return reject(new Error("no_food")); // We have no edible items
      await bot.equip(items[0].id, 'hand');
      await bot.consume()
      return resolve(items[0]);

      function getItems() {
        let foodByPoints = Object.values(bot.registry.foods).sort((a, b) => b.foodPoints - a.foodPoints); // Sort food items by foodPoints (Yes, I know about foodsByFoodPoints)
        let filtered = filter.length ? foodByPoints.filter(i => filter.includes(i.name)) : foodByPoints; // If there's a filter use it, use foodByPoints list
        let edible = filtered.filter(i => bot.inventory.items().map(e => e.name).includes(i.name))
        return edible;
      }

    })
  }

}