# Copyright, 2017, by Samuel G. D. Williams. <http://www.codeotaku.com>
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

module Relaxo
	module Model
		class Recordset
			include Enumerable
		
			def initialize(dataset, path, model)
				@dataset = dataset
				@path = path
				@model = model
			end
		
			attr :dataset
			attr :path
			attr :model
			
			def empty?
				!@dataset.each(@path).any?
			end
			
			def first
				to_a.first
			end
			
			def last
				to_a.last
			end
			
			def each(model = @model, &block)
				@dataset.each(@path) do |name, object|
					object = model.new(@dataset, object)
					object.load_object
					
					yield object
				end
			end
		end
	end
end