module Rhom

  module BaseModel
    class << self
      attr_accessor :model_params
      
    end

    def get_model_params
      init_defaults
      BaseModel.model_params  
    end

    def reset_model_params    
        BaseModel.model_params = {}
    end
    
    def fixed_schema?
        false
    end
    
    def init_defaults
      if fixed_schema?
          BaseModel.model_params ||= {}
          BaseModel.model_params['schema'] ||= {}
          BaseModel.model_params['schema']['property'] ||= {}
      else
          BaseModel.model_params ||= {}
          BaseModel.model_params ||= {}
          BaseModel.model_params['property'] ||= {}
      end
    end
     
    def property(name,type=:string,option=nil)
      init_defaults
      if fixed_schema?()
          BaseModel.model_params['schema']['property'][name.to_s] = [type,option] 
      else
          BaseModel.model_params['property'][name.to_s] = [type,option] 
      end

    end

    def set(name,value)
  	  BaseModel.model_params ||= {}
  	  
  	  if ( name == :sync )
  	    if ( value )
  	        BaseModel.model_params['sync_type'] = 'incremental' unless BaseModel.model_params['sync_type']
  	    else
  	        BaseModel.model_params.delete('sync_type')
  	    end        
  	  else
  	    BaseModel.model_params[name.to_s] = value
  	  end
    end

    def enable(name)
      set(name,true)
    end
    
    def belongs_to(name, owner)
  	  BaseModel.model_params ||= {}
  	  BaseModel.model_params['belongs_to'] ||= []

      if owner.is_a?(Array)    	  
        owner.each do |src|        
            BaseModel.model_params['belongs_to'] << {name.to_s => src.to_s}
        end
      else
  	    BaseModel.model_params['belongs_to'] << {name.to_s => owner.to_s}
  	  end  
    end
    
    def index(name,cols)
  	  return unless fixed_schema?
  	  
      BaseModel.model_params['schema'] ||= {}
      BaseModel.model_params['schema']['index'] ||= {}  	  

      BaseModel.model_params['schema']['index'][name.to_s] = cols
    end

    def unique_index(name,cols)
  	  return unless fixed_schema?
  	  
      BaseModel.model_params['schema'] ||= {}
      BaseModel.model_params['schema']['unique_index'] ||= {}  	  

      BaseModel.model_params['schema']['unique_index'][name.to_s] = cols
    end
    
  end
  
  module FixedSchema
    include BaseModel

    def self.included(model)
      model.extend FixedSchema
    end
    
    def fixed_schema?
        true
    end
    
  end

  module PropertyBag
    include BaseModel
    
    def self.included(model)
      model.extend PropertyBag
    end
    
  end
  
end # Rhom