edit status service

app/services/edit_status_service.rb

@@ -0,0 +1,112 @@
+# frozen_string_literal: true
+
+class EditStatusService < BaseService
+  include Redisable
+
+  # Post a text status update, fetch and notify remote users mentioned
+  # @param [Status] status Status being edited
+  # @param [Hash] options
+  # @option [String] :text Message
+  # @option [Boolean] :sensitive
+  # @option [String] :visibility
+  # @option [String] :spoiler_text
+  # @option [String] :language
+  # @option [Enumerable] :media_ids Optional array of media IDs to attach
+  # @option [Doorkeeper::Application] :application
+  # @option [String] :idempotency Optional idempotency key
+  # @return [Status]
+  def call(status, options = {})
+    @status      = status
+    @account     = status.account
+    @options     = options
+    @text        = @options[:text] || ''
+
+    return idempotency_duplicate if idempotency_given? && idempotency_duplicate?
+
+    validate_media!
+    preprocess_attributes!
+
+    process_status!
+    postprocess_status!
+
+    redis.setex(idempotency_key, 3_600, @status.id) if idempotency_given?
+
+    @status
+  end
+
+  private
+
+  def preprocess_attributes!
+    @text         = @options.delete(:spoiler_text) if @text.blank? && @options[:spoiler_text].present?
+    @visibility   = @options[:visibility] || @account.user&.setting_default_privacy
+    @visibility   = :unlisted if @visibility == :public && @account.silenced?
+  rescue ArgumentError
+    raise ActiveRecord::RecordInvalid
+  end
+
+  def process_status!
+    # The following transaction block is needed to wrap the UPDATEs to
+    # the media attachments when the status is created
+
+    ApplicationRecord.transaction do
+      @status.update!(status_attributes)
+    end
+
+    process_hashtags_service.call(@status)
+    process_mentions_service.call(@status)
+  end
+
+  def postprocess_status!
+    LinkCrawlWorker.perform_async(@status.id) unless @status.spoiler_text?
+  end
+
+  def validate_media!
+    return if @options[:media_ids].blank? || !@options[:media_ids].is_a?(Enumerable)
+
+    raise GabSocial::ValidationError, I18n.t('media_attachments.validations.too_many') if @options[:media_ids].size > 4
+
+    @media = @account.media_attachments.where(status_id: nil).where(id: @options[:media_ids].take(4).map(&:to_i))
+
+    raise GabSocial::ValidationError, I18n.t('media_attachments.validations.images_and_video') if @media.size > 1 && @media.find(&:video?)
+  end
+
+  def language_from_option(str)
+    ISO_639.find(str)&.alpha2
+  end
+
+  def process_mentions_service
+    ProcessMentionsService.new
+  end
+
+  def process_hashtags_service
+    ProcessHashtagsService.new
+  end
+
+  def idempotency_key
+    "idempotency:status:#{@account.id}:#{@options[:idempotency]}"
+  end
+
+  def idempotency_given?
+    @options[:idempotency].present?
+  end
+
+  def idempotency_duplicate
+    @account.statuses.find(@idempotency_duplicate)
+  end
+
+  def idempotency_duplicate?
+    @idempotency_duplicate = redis.get(idempotency_key)
+  end
+
+  def status_attributes
+    {
+      text: @text,
+      media_attachments: @media || [],
+      sensitive: (@options[:sensitive].nil? ? @account.user&.setting_default_sensitive : @options[:sensitive]) || @options[:spoiler_text].present?,
+      spoiler_text: @options[:spoiler_text] || '',
+      visibility: @visibility,
+      language: language_from_option(@options[:language]) || @account.user&.setting_default_language&.presence || LanguageDetector.instance.detect(@text, @account),
+      application: @options[:application],
+    }.compact
+  end
+end