require "option_parser"
require "ipc"
require "./colors"

require "json"

verbosity = 1
service_name = "admind"

OptionParser.parse! do |parser|
	parser.on "-s service_name", "--service-name service_name", "URI" do |optsn|
		service_name = optsn
	end

	parser.on "-v verbosity", "--verbosity verbosity", "Verbosity (0 = nothing is printed, 1 = only events, 2 = events and messages). Default: 1" do |optsn|
		verbosity = optsn.to_i
	end

	parser.on "-h", "--help", "Show this help" do
		puts parser
		exit 0
	end
end

class Rectangle
	JSON.mapping(
		x: UInt32,
		y: UInt32
	)

	def initialize(@x : UInt32, @y : UInt32)
	end
end

class WidgetTree
	JSON.mapping(
		rectangles: Array(Rectangle)
	)

	def initialize(@rectangles : Array(Rectangle))
	end
end

class Page
	JSON.mapping(
		page: String,
		title: String,
		tree: WidgetTree
	)

	def initialize(@page, @title, @tree)
	end
end


IPC::Service.new (service_name) do |event|
	case event
	when IPC::Event::Timer
		if verbosity >= 1
			puts "#{CORANGE}IPC::Event::Timer#{CRESET}"
		end
	when IPC::Event::Connection
		if verbosity >= 1
			puts "#{CBLUE}IPC::Event::Connection#{CRESET}, client: #{event.connection.fd}"
		end
	when IPC::Event::Disconnection
		if verbosity >= 1
			puts "#{CBLUE}IPC::Event::Disconnection#{CRESET}, client: #{event.connection.fd}"
		end
	when IPC::Event::Message
		if verbosity >= 1
			puts "#{CGREEN}IPC::Event::Message#{CRESET}, client: #{event.connection.fd}"
			if verbosity == 2
				puts "#{CBLUE}message: #{event.message} #{CRESET}"
			end
		end

		# JSON message
		rectangles = Array(Rectangle).new
		rectangles << Rectangle.new 1, 2
		rectangles << Rectangle.new 2, 1
		rectangles << Rectangle.new 3, 1
		widgets = WidgetTree.new(rectangles)
		page = Page.new "admin", "This is the Admin Page", widgets

		event.connection.send 2, page.to_json
	else
		if verbosity >= 1
			puts "#{CRED}Exception: message = #{event.message} #{CRESET}"
		end
	end
end