# require "eitil_wrapper/callbacks/helper_methods"

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

require "eitil_core/argument_helpers/all_args_to_ivars"

module EitilWrapper
  module Callbacks
    module HelperMethods

      Eitil::ApplicationRecordModules << self

      def inherited(subclass)
        super
        subclass.use_eitil_callback_helper_methods

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

      def use_eitil_callback_helper_methods  
        return if abstract_class?  
        create_eitil_boolean_callback_helper_methods
      end

      def columns_of_type(data_type)
        columns_hash.select { |column,v| v.sql_type_metadata.type == data_type }
      end

      def create_eitil_boolean_callback_helper_methods
        columns = columns_of_type :boolean
        columns&.each do |column_name, eitil_object|
        
          # truthy methods
          create_eitil_became_true_callback_helper column_name
          create_eitil_becomes_true_callback_helper column_name
          create_eitil_to_true_callback_helper column_name

          # falsy methods
          create_eitil_became_false_callback_helper column_name
          create_eitil_becomes_false_callback_helper column_name
          create_eitil_to_false_callback_helper column_name

        end
      end

      def create_eitil_became_true_callback_helper(column_name)
        method_name = "#{column_name}_became_true"

        define_method(method_name) do
          _changes = previous_changes[column_name]
          _changes && !_changes[0] && _changes[1]
        end
      end

      def create_eitil_becomes_true_callback_helper(column_name)
        method_name = "#{column_name}_becomes_true"

        define_method(method_name) do
          _changes = changes[column_name]
          _changes && !_changes[0] && _changes[1]
        end 
      end

      def create_eitil_to_true_callback_helper(column_name)
        method_name    = "#{column_name}_to_true"
        becomes_method = "#{column_name}_becomes_true"
        became_method  = "#{column_name}_became_true"

        define_method(method_name) do
          return send(becomes_method) if changes&.present?
          return send(became_method)  if previous_changes&.present?
        end 
      end

      def create_eitil_became_false_callback_helper(column_name)
        method_name = "#{column_name}_became_false"

        define_method(method_name) do
          _changes = previous_changes[column_name]
          _changes && _changes[0] && !_changes[1]
        end
      end

      def create_eitil_becomes_false_callback_helper(column_name)
        method_name = "#{column_name}_becomes_false"

        define_method(method_name) do
          _changes = changes[column_name]
          _changes && _changes[0] && !_changes[1]
        end 
      end

      def create_eitil_to_false_callback_helper(column_name)
        method_name    = "#{column_name}_to_false"
        becomes_method = "#{column_name}_becomes_false"
        became_method  = "#{column_name}_became_false"

        define_method(method_name) do
          return send(becomes_method) if changes&.present?
          return send(became_method)  if previous_changes&.present?
        end 
      end

    end
  end
end