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# frozen_string_literal: true
# We store events about issuable label changes in a separate table (not as
# other system notes), but we still want to display notes about label changes
# as classic system notes in UI. This service generates "synthetic" notes for
# label event changes and merges them with classic notes and sorts them by
# creation time.
module ResourceEvents
class MergeIntoNotesService
include Gitlab::Utils::StrongMemoize
attr_reader :resource, :current_user, :params
def initialize(resource, current_user, params = {})
@resource = resource
@current_user = current_user
@params = params
end
def execute(notes = [])
(notes + label_notes).sort_by { |n| n.created_at }
end
private
def label_notes
label_events_by_discussion_id.map do |discussion_id, events|
LabelNote.from_events(events, resource: resource, resource_parent: resource_parent)
end
end
# rubocop: disable CodeReuse/ActiveRecord
def label_events_by_discussion_id
return [] unless resource.respond_to?(:resource_label_events)
events = resource.resource_label_events.includes(:label, user: :status)
events = since_fetch_at(events)
events.group_by { |event| event.discussion_id }
end
# rubocop: enable CodeReuse/ActiveRecord
def since_fetch_at(events)
return events unless params[:last_fetched_at].present?
last_fetched_at = Time.at(params.fetch(:last_fetched_at).to_i)
events.created_after(last_fetched_at - NotesFinder::FETCH_OVERLAP)
end
def resource_parent
strong_memoize(:resource_parent) do
resource.project || resource.group
end
end
end
end
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