# vim: ft=ruby

class BspwmPager < Worker
	def mainloop()
		while true do
			pipe = IO.popen("bspc subscribe")
	
			pipe.each do |line|
				monitor ||= line.split(":")[0]

				if @config['mod']['bspwm_pager'].has_key?("monitors") == false || @config['mod']['bspwm_pager']['monitors'].include?(monitor)
					self.write parse_data(line)
				end
			end
		end
	end

	def parse_data(string)
		# Example: WMDVI-I-1:o1:o2:f3:f4:O5:f6:f7:f8:f9:fh:LT:TF:G
		out = []

		string.split(":").each do |part|
			n = part[1..-1]

			if @config['mod']['bspwm_pager']['blacklist'] != nil
				if @config['mod']['bspwm_pager']['blacklist'].include? n
					next
				end
			end
				
			case part
				when /^(O|F|U).+/
					out << "%{B#{@config['colours']['bg_focused']}} #{n} %{B-}"
				when /^u.+/
					out << "%{A:bspc desktop -f #{n}:}%{R} #{n} %{R}%{A}"
				when /^o.+/
					out << "%{A:bspc desktop -f #{n}:} #{n} %{A}"
				when /^f.+/
					if @config['mod']['bspwm_pager']['show_empty_desktops']
						out << " #{n} "
					end
				when /^L.+/
					@layout = n
			end
		end

		case @layout
			when "T"
				layout_flag = "t"
			when "M"
				layout_flag = "m"
		end

		out << " #{layout_flag} "

		return out.join.chomp
	end
end

Modules.add("bspwm_pager", "BspwmPager")