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- # frozen_string_literal: true
-
- class ReactionValidator < ActiveModel::Validator
- SUPPORTED_EMOJIS = Oj.load(File.read(Rails.root.join('app', 'javascript', 'mastodon', 'features', 'emoji', 'emoji_map.json'))).keys.freeze
-
- LIMIT = 8
-
- def validate(reaction)
- return if reaction.name.blank? || reaction.custom_emoji_id.present?
-
- reaction.errors.add(:name, I18n.t('reactions.errors.unrecognized_emoji')) unless unicode_emoji?(reaction.name)
- reaction.errors.add(:base, I18n.t('reactions.errors.limit_reached')) if limit_reached?(reaction)
- end
-
- private
-
- def unicode_emoji?(name)
- SUPPORTED_EMOJIS.include?(name)
- end
-
- def limit_reached?(reaction)
- reaction.announcement.announcement_reactions.where.not(name: reaction.name).count('distinct name') >= LIMIT
- end
- end
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