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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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