class ModsentenceController < ApplicationController

	def replaceable_words st
		fd=PicListFolder.chop
		Dir.mkdir(fd) unless File.directory?(fd)		
		piclist="#{PicListFolder}#{get_user}.pics"
		if File.exist?(piclist)
			s=IO.readlines(piclist).collect {|s| s.chomp}
		else
			rx=/images.*\/([\w ]+)\.(JPG|GIF|PNG|JPEG)$/i
			s=get_rxpics('',rx)
			File.open(piclist,"w") do |f|
				f.puts s
			end
		end
		r=s.select{|p|
#		         logger.info "picname #{p.inspect}"
		         st.match /\b#{p.strip}\b/i}
#		logger.info "replaceable_words #{r}"
		r
#		st.split(/\W+/).select {|w| !sibling_pics(w).empty?}
	end
	def start_choices
	  if p=session[:picked]
		  sibling_pics p
		else
			replaceable_words get_displayed
		end
  end
	def selected str
		if session[:picked]
			session[:displayed].gsub!(/#{session[:picked]}/i,str)
			session[:picked]=nil
		else
			session[:picked]=str
		end
		nil
	end
	def filechoices?
		false
	end
	def get_title
		if session[:picked]
			translate 'replace with what'
		else
			translate 'select a word to replace'
		end
	end
	def updownevent
		fd=TemplatesFolder.chop
		Dir.mkdir(fd) unless File.directory?(fd)
		
		templates="#{TemplatesFolder}#{get_user}.txt"
		if File.exist?(templates)
			s=IO.readlines templates
		else
			s=get_matching_sentences(SentencesDir,//).reject{|ss|
				replaceable_words(ss).empty?}
			File.open(templates,"w") do |f|
			   f.puts s
			end			         
		end
		session[:displayed]=s[get_selected_item%s.size] unless s.empty?
		session[:choices]=nil
		session[:picked]=nil
	end
	
	def first_time
		session[:picked]=nil
		session[:displayed]=get_text
		session[:choices]=nil
		what_next
	end
	def extras
		@displayed=get_displayed
	end
end