Reduce constant memory usage by ~100kB and further reduce boot-up memory allocations and temporary memory use by a further ~200kB.
		
			
				
	
	
		
			29 lines
		
	
	
		
			933 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			29 lines
		
	
	
		
			933 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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class ReactionValidator < ActiveModel::Validator
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  SUPPORTED_EMOJIS = Oj.load_file(Rails.root.join('app', 'javascript', 'mastodon', 'features', 'emoji', 'emoji_map.json').to_s).keys.freeze
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  LIMIT = 8
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  def validate(reaction)
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    return if reaction.name.blank?
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    reaction.errors.add(:name, I18n.t('reactions.errors.unrecognized_emoji')) if reaction.custom_emoji_id.blank? && !unicode_emoji?(reaction.name)
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    reaction.errors.add(:base, I18n.t('reactions.errors.limit_reached')) if new_reaction?(reaction) && limit_reached?(reaction)
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  end
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  private
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  def unicode_emoji?(name)
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    SUPPORTED_EMOJIS.include?(name)
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  end
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  def new_reaction?(reaction)
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    !reaction.announcement.announcement_reactions.where(name: reaction.name).exists?
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  end
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  def limit_reached?(reaction)
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    reaction.announcement.announcement_reactions.where.not(name: reaction.name).count('distinct name') >= LIMIT
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  end
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end
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