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

const itemSchema = new Schema({
  name: String,
  tags: [{ type: Schema.Types.ObjectId, ref: 'Tag' }]  // Tags referenced by ObjectId
});

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

// Create tags and an item referencing these tags
async function createItemWithTags(name, tagNames) {
  const tags = await Tag.insertMany(tagNames.map(name => ({ name })));
  const item = new Item({ name, tags: tags.map(tag => tag._id) });
  await item.save();
  console.log('Item created with referenced tags:', item);
}

createItemWithTags('Laptop', ['electronics', 'computing']);