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# frozen_string_literal: true
# == Schema Information
#
# Table name: custom_emojis
#
# id :bigint(8) not null, primary key
# shortcode :string default(""), not null
# domain :string
# image_file_name :string
# image_content_type :string
# image_file_size :integer
# image_updated_at :datetime
# created_at :datetime not null
# updated_at :datetime not null
# disabled :boolean default(FALSE), not null
# uri :string
# image_remote_url :string
# visible_in_picker :boolean default(TRUE), not null
# category_id :bigint(8)
# image_storage_schema_version :integer
#
class CustomEmoji < ApplicationRecord
LOCAL_LIMIT = (ENV['MAX_EMOJI_SIZE'] || 50.kilobytes).to_i
LIMIT = [LOCAL_LIMIT, (ENV['MAX_REMOTE_EMOJI_SIZE'] || 200.kilobytes).to_i].max
SHORTCODE_RE_FRAGMENT = '[a-zA-Z0-9_]{2,}'
SCAN_RE = /(?<=[^[:alnum:]:]|\n|^)
:(#{SHORTCODE_RE_FRAGMENT}):
(?=[^[:alnum:]:]|$)/x
IMAGE_MIME_TYPES = %w(image/png image/gif).freeze
belongs_to :category, class_name: 'CustomEmojiCategory', optional: true
has_one :local_counterpart, -> { where(domain: nil) }, class_name: 'CustomEmoji', primary_key: :shortcode, foreign_key: :shortcode
has_attached_file :image, styles: { static: { format: 'png', convert_options: '-coalesce -strip' } }
before_validation :downcase_domain
validates_attachment :image, content_type: { content_type: IMAGE_MIME_TYPES }, presence: true
validates_attachment_size :image, less_than: LIMIT, unless: :local?
validates_attachment_size :image, less_than: LOCAL_LIMIT, if: :local?
validates :shortcode, uniqueness: { scope: :domain }, format: { with: /\A#{SHORTCODE_RE_FRAGMENT}\z/ }, length: { minimum: 2 }
scope :local, -> { where(domain: nil) }
scope :remote, -> { where.not(domain: nil) }
scope :alphabetic, -> { order(domain: :asc, shortcode: :asc) }
scope :by_domain_and_subdomains, ->(domain) { where(domain: domain).or(where(arel_table[:domain].matches('%.' + domain))) }
scope :listed, -> { local.where(disabled: false).where(visible_in_picker: true) }
remotable_attachment :image, LIMIT
include Attachmentable
after_commit :remove_entity_cache
def local?
domain.nil?
end
def object_type
:emoji
end
def copy!
copy = self.class.find_or_initialize_by(domain: nil, shortcode: shortcode)
copy.image = image
copy.tap(&:save!)
end
class << self
def from_text(text, domain = nil)
return [] if text.blank?
shortcodes = text.scan(SCAN_RE).map(&:first).uniq
return [] if shortcodes.empty?
EntityCache.instance.emoji(shortcodes, domain)
end
def search(shortcode)
where('"custom_emojis"."shortcode" ILIKE ?', "%#{shortcode}%")
end
end
private
def remove_entity_cache
Rails.cache.delete(EntityCache.instance.to_key(:emoji, shortcode, domain))
end
def downcase_domain
self.domain = domain.downcase unless domain.nil?
end
end
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