module PolyamorousHelper
  def new_join_association(reflection, children, klass)
    Polyamorous::JoinAssociation.new reflection, children, klass
  end

  if ActiveRecord.version >= ::Gem::Version.new("6.0.0.rc1")
    def new_join_dependency(klass, associations = {})
      Polyamorous::JoinDependency.new klass, klass.arel_table, associations, Polyamorous::InnerJoin
    end
  elsif ActiveRecord.version > ::Gem::Version.new("5.2.0")
    def new_join_dependency(klass, associations = {})
      Polyamorous::JoinDependency.new klass, klass.arel_table, associations
    end
  elsif ActiveRecord.version == ::Gem::Version.new("5.2.0")
    def new_join_dependency(klass, associations = {})
      alias_tracker = ::ActiveRecord::Associations::AliasTracker.create(klass.connection, klass.table_name, [])
      Polyamorous::JoinDependency.new klass, klass.arel_table, associations, alias_tracker
    end
  else
    def new_join_dependency(klass, associations = {})
      Polyamorous::JoinDependency.new klass, associations, []
    end
  end

  def new_join(name, type = Polyamorous::InnerJoin, klass = nil)
    Polyamorous::Join.new name, type, klass
  end
end