# frozen_string_literal: true

# 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
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

require_relative 'methods'
require_relative 'headers'
require_relative 'request'
require_relative 'response'

module Protocol
	module HTTP
		class Middleware < Methods
			# Convert a block to a middleware delegate.
			def self.for(&block)
				def block.close
				end
				
				return self.new(block)
			end
			
			def initialize(delegate)
				@delegate = delegate
			end
			
			attr :delegate
			
			def close
				@delegate.close
			end
			
			def call(request)
				@delegate.call(request)
			end
			
			module Okay
				def self.close
				end
				
				def self.call(request)
					Response[200]
				end
			end
			
			module NotFound
				def self.close
				end
				
				def self.call(request)
					Response[404]
				end
			end
			
			module HelloWorld
				def self.close
				end
				
				def self.call(request)
					Response[200, Headers['content-type' => 'text/plain'], ["Hello World!"]]
				end
			end
		end
	end
end
