# 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 'thread'

require 'async/io/host_endpoint'
require 'async/io/notification'

module Falcon
	module Capybara
		class Wrapper
			def initialize
				@job = nil
				
				@job_available = Async::IO::Notification.new
				@job_complete = Async::IO::Notification.new
			end
			
			def close
				@job_available.close
				@job_complete.close
			end
			
			def remote(&block)
				@job = block
				@job_available.signal
				
				Async::Reactor.run do
					Async.logger.debug (self) {"Waiting for job completion..."}
					@job_complete.wait
				end.wait
			end
			
			def call(app, port, host)
				require 'async/reactor'
				require 'falcon/server'
				require 'falcon/adapters/rack'
				
				Async::Reactor.run do |task|
					server = Falcon::Server.new(
						Falcon::Adapters::Rack.new(app),
						Async::IO::Endpoint.tcp(host, port)
					)
					
					task.async do
						Async.logger.debug (self) {"Running server..."}
						server.run
					end
					
					while true
						Async.logger.debug (self) {"Waiting for job..."}
						@job_available.wait while @job.nil?
						
						Async.logger.debug (self) {"Running job #{@job}"}
						@job.call
						@job = nil
						
						@job_complete.signal
					end
				end
			end
		end
	end
end