const tagSchema = new Schema({
  name: String,
  items: [{ type: Schema.Types.ObjectId, ref: 'Item' }]
});

const itemSchema = new Schema({
  name: String
});

const Item = mongoose.model('Item', itemSchema);
const Tag = mongoose.model('Tag', tagSchema);

// Create an item and update tags to include this item
async function createItemAndUpdateTags(name, tagNames) {
  const item = new Item({ name });
  await item.save();
  
  await Tag.updateMany(
    { name: { $in: tagNames } },
    { $addToSet: { items: item._id } },
    { upsert: true }
  );
  
  console.log('Item created and tags updated with item ID:', item._id);
}

createItemAndUpdateTags('Desk', ['furniture', 'office']);