1. Principle: Use an unambiguous, stable time zone such as UTC or GMT.
2. Principle: Long running transactions are Evil

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- start script through scheduled task or click of button "Sync Magento Attributes to Drupal Content Types"

do rest call and assign result set to attribute_sets array
do rest call and assign result set to attributes_inside_attribute_set array
loop through attribute_sets array:
	start update block:
	update drupal side attribute sets, attributes, and products having that attribute set.
		-- before update enter server side time of request
		-- update content type
		
			call function _magento_attributes_sync_attributes(int attribute_set_id = REQ, array attributes_inside_attribute_set[] = REQ );
			start function:
			GLOBAL array mandatory_update_all_products;
			loop through attributes inside attribute set
				case switch
					(check if attribute got updated) 
						TRUE
						map_attribute_type_to_drupal_field_type($attribute);
						content_field_instance_update(attribute);
						mandatory_update_all_products['attribute_set_id] = true
					(check if attribute is a new field)
						TRUE
						map_attribute_type_to_drupal_field_type($attribute);
						content_field_instance_create(attribute);
						mandatory_update_all_products['attribute_set_id] = true
			delete the attributes to be updated/created inside the attribute set inside logs
			end loop;
			end function;			
			
			call function _magento_attributes_sync_fields(int attribute_set_id = REQ, array attributes_inside_attribute_set[] = REQ );			
			start function:
			loop through fields inside magento_content_type
				(check if field is present as an attribute inside attribute set)
				TRUE
				content_field_instance_delete($field)
				mandatory_update_all_products['attribute_set_id'] = true
			end loop;
			end function;
				
			loop through attribute sets that got update thus will have to update the products too
			*** this is where batch api or job queue will be handy. version 2.0 though :)
			(check mandatory_update_all_products[$attribute_set_id] is true)				
			    // function defined in magento_products.module called by maybe both magento_attributes.module and magento_products.module
				call function magento_products_update_products_by_attribute_set($attribute_set_id);				
			end loop;																											
	end update block;	
end loop attribute_sets;












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