# require "eitil_wrapper/records/default_sorts"

# require "eitil_wrapper/railtie" to run the dynamic dispatch as an init hook during boot
require "eitil_wrapper/railtie"


module EitilWrapper
  module Records
    module DefaultSorts

      Eitil::ApplicationRecordModules << self

      SharableDateSorts = -> (_class, column) {
        _class.eitil_sort :"#{column}_oldest_first", -> { _class.order("#{column} ASC") }
        _class.eitil_sort :"#{column}_newest_first", -> { _class.order("#{column} DESC") }
      }

      SharableNumSorts = -> (_class, column) {
        _class.eitil_sort :"#{column}_ascending",    -> { _class.order("#{column} ASC") }
        _class.eitil_sort :"#{column}_descending",   -> { _class.order("#{column} DESC") }
      }

      def inherited(subclass)
        super
        return if Eitil.skip_default_sorts_for_models.include?(subclass.to_s.to_sym)
        
        # Set the proper table_names for namespaced models. Without setting this,
        # Rails run into problems due to the fact that the first call to the model's
        # constant triggers this initializer first, and only thereafter the model file 
        # which sets the correct table_name through a macro.
        
        namespaced_class    = subclass.to_s.include?('::')
        subclass.table_name = subclass.to_s.gsub('::', '_').downcase.pluralize if namespaced_class

        subclass.use_eitil_sorts

        rescue => e
          puts "default sorts failed for #{subclass} because of #{e.class} and '#{e.to_s.split(' ').first}'"
      end

      def use_eitil_sorts  
        return if abstract_class?
        %i[datetime date integer float].each { |_type| send :"create_eitil_#{_type}_sorts" }
      end

      def eitil_sort(_name, _proc)
        define_singleton_method(_name) { _proc.call } unless respond_to? _name 
      end
    
      def sort_columns_of_type(data_type)
        columns_hash.select { |column,v| v.sql_type_metadata.type == data_type }
      end

      def create_eitil_datetime_sorts
        columns_of_type(:datetime)&.map do |column, object|
          SharableDateSorts.call self, column
        end
      end

      def create_eitil_date_sorts
        columns_of_type(:date)&.map do |column, object|
          SharableDateSorts.call self, column
        end
      end

      def create_eitil_integer_sorts
        columns_of_type(:integer)&.map do |column, object|
          SharableNumSorts.call self, column
        end
      end

      def create_eitil_float_sorts
        columns_of_type(:float)&.map do |column, object|
          SharableNumSorts.call self, column
        end
      end

    end
  end
end