require_relative 'provider'

module Ca
  module DataStore
   
    # 
    # All method from this model is prefixed with cads_
    # to separate the call with included/extended class.
    # Notably case in mind is ActiveRecord
    #
    module Model
      include TR::CondUtils

      include TeLogger::TeLogHelper
      teLogger_tag :cads_model

      module ClassMethods

        def cads_find(*args, &block)
          Provider.instance.provider.handle(:find, self, *args, &block)
        end

        # unstable relationship between mid and potential keys inside data store such as ActiveRecord
        # The name cannot be same and it is up to user to define or link if there is
        #def cads_find_by_mid(*args, &block)
        #  Provider.instance.provider.handle(:find_by_mid, self, *args, &block)
        #end

        def cads_find_all(*args, &block)
          Provider.instance.provider.handle(:find_all, self, *args, &block)
        end

        def cads_schema(*args, &block)
          Provider.instance.provider.handle(:schema, self, *args, &block)
        end

      end # ClassMethods
      def self.included(klass)
        klass.extend(ClassMethods)
      end

      def Model.init(*args, &block)
        Provider.instance.provider.handle(:init, *args, &block)
      end

      def Model.reset(*args, &block)
        Provider.instance.provider.handle(:reset, *args, &block)
      end

      attr_accessor :mid, :ts_created, :ts_updated, :cads_new_record

      def cads_save(*args, &block)
        if is_cads_new_record? and is_empty?(@mid)
          @mid = SecureRandom.hex(16)
        end
        Provider.instance.provider.handle(:save, self, *args, &block)
      end

      def cads_delete(*args, &block)
        Provider.instance.provider.handle(:delete, self, *args, &block)
      end

      def is_cads_new_record?(*args, &block)
        @cads_new_record = Provider.instance.provider.handle(:is_new_record?, self, *args, &block)
        @cads_new_record = true if is_empty?(@cads_new_record) or not is_bool?(@cads_new_record) 
        @cads_new_record
      end


    end # Model

  end # DataStore
end #Ca