require 'ftools'
require 'rubygems'
require 'RMagick'
include Magick

class CropController < ApplicationController
	WorkFile='temp.jpg'
	def get_selected_pic
		session[:picfile] ||= "yes.jpeg"
	end
	def designers
Co-Designer:<a href="http://anmolanand.wordpress.com/">
Anmol Anand</a>
	end
	def get_mainfile
		session[:mainfile]
	end

	def start_choices
		['left','right','top','bottom']
	end

	def get_choices
		session[:choices]=
		 ['left','right','top','bottom']
	end
	def get_selected_item
		session[:selected_item]
	end

	def get_motherpic
		session[:motherpic]
	end

	def get_pic
		session[:pic]
	end
	def get_crop_percentage
		session[:crop_percentage]=((get_selected_item )* ("#{get_stepsize}".to_i)) % 100

		session[:crop_percentage]
	end
	def first_time
		session[:motherpic]=session[:pic]=get_selected_pic
		session[:selected_item]=0
		session[:freeze]=nil
		session[:choices]=nil
		#session[:separator]=','
		#session[:crop_percentage] ||= 10	#session[:stepsize].to_i
		#state 0 => we are choosing what to change
		#state 1 => we have chosen what to change
		session[:state]=0
		session[:title]='select which side to cut'
 		redirect_to :action => "index"
	end

	def crp(path,cropfile,width,height,gravity)
#     		logger.info("path : #{path}")
#     		logger.info("crop : #{cropfile}")
#     		logger.info("width : #{width}")
#     		logger.info("height : #{height}")
#     		logger.info("gravity : #{gravity}")


		width=width.to_i
		height=height.to_i
		path = path.chomp
    		cropfile = cropfile.chomp
		if File.exists?(cropfile)
#			logger.info("filepresent:#{cropfile}exists")
    		else
      			img=Magick::Image.read(path).first
      			img=img.scale(560,400)
      			img.crop(gravity,width,height).write(cropfile)
     		end
	end

 	def selected(str)
  		session[:motherpic]= get_pic
  	end

  	def get_freeze
		session[:freeze] ||= get_selected_item	#session[:selected_item]
	end

	def backspace
		session[:state]=0
		session[:selected_item]=0
		session[:title]='select which side to cut'
		session[:pic]=get_motherpic	#session[:motherpic]
		session[:freeze]=nil
   		redirect_to :action => "index"
	end

	def process_choice selected_choice
		if session[:state]==1
			session[:state]=0
			session[:selected_item]=0
			session[:freeze]=nil
      			session[:title]='select which side to cut'
     			session[:motherpic]=get_pic	#session[:pic]
		else
			session[:state]=1
			session[:title]="crop#{get_crop_percentage}%"+get_choices[get_freeze % get_choices_size]
#			logger.info("freeze:#{session[:freeze]}")
		end
			#logger.info("sel_state:#{session[:state]}")
			#get_choices[get_freeze%session[:choices].size]
      			#logger.info("freeze:#{session[:freeze]}")
    			logger.info("sel_state:#{session[:state]}")
#			logger.info("croppercent:#{get_crop_percentage}")
	end

	def updownevent
# 		logger.info("reached updownevent")
		if session[:state]==1
			session[:crop_percentage]+=(get_stepsize).to_i
    			tempchoice = get_choices
    			choice=tempchoice[get_freeze % tempchoice.size]
    			logger.info("choice:#{choice}")
			st = (Dir.pwd).chomp("/public")+"/public/images/"
			dir= Dir.pwd
# 	    		logger.info("st : #{st}")

			session[:mainfile]=	if session[:motherpic]=~/home/
							session[:motherpic]
						else
							st+session[:motherpic]
						end

       			picwidth = 560 ;  #width of the pic (in pixels)
       			picheight = 400;  #height of the pic (pixels)
			#session[:crop_percentage]=(get_selected_item % 9 + 1)* 10
     			#session[:crop_percentage]=session[:crop_percentage]+session[:stepsize].to_i
			#percentcrop=session[:crop_percentage]
			percentcrop=get_crop_percentage

			percentcrop = (100-percentcrop.to_i)
			#percentcrop = 50
			pwidth = ((picwidth)*percentcrop.to_i)/100
       			pheight=((picheight)*percentcrop.to_i)/100
#        			logger.info("percentcrop : #{percentcrop}")
#        			logger.info("crop_percentage :
#{session[:crop_percentage]}")
#        			logger.info("pwidth : #{pwidth}")
#        			logger.info("pheight : #{pheight}")
			case choice
				when "left"
					filename="#{get_mainfile}".gsub(/\./,"cl#{get_crop_percentage}"+".")
# 					logger.info("mainfile:#{get_mainfile}")
          				session[:pic]=filename
					session[:title]="crop#{get_crop_percentage}%"+get_choices[get_freeze % get_choices_size]
					crp("#{get_mainfile}",filename,pwidth,picheight,NorthEastGravity)
				 when "right"
					filename="#{get_mainfile}".gsub(/\./,"cr#{get_crop_percentage}"+".")
           				session[:pic]=filename
 				   	session[:title]="crop#{get_crop_percentage}%"+get_choices[get_freeze % get_choices_size]
					crp("#{get_mainfile}",filename,pwidth,picheight,NorthWestGravity)
					#logger.info("mainfile1:#{get_selected_pic}")

			   	  when "top"

					filename="#{get_mainfile}".gsub(/\./,"ct#{get_crop_percentage}"+".")
           				session[:pic]=filename
					session[:title]="crop#{get_crop_percentage}%"+get_choices[get_freeze % get_choices_size]
					 crp ("#{get_mainfile}",filename,picwidth,pheight,SouthEastGravity)

         			when "bottom"
					filename="#{get_mainfile}".gsub(/\./,"cb#{get_crop_percentage}" +".")
            				session[:pic]=filename
					session[:title]="crop#{get_crop_percentage}%" + get_choices[get_freeze %  get_choices_size]
                                        crp("#{get_mainfile}",filename,picwidth,pheight,NorthWestGravity)
			end
    	end
  end

	def extras
	  logger.info("reached extras")
		if session[:state]==1
			@selected_item = session[:freeze]%get_choices_size
		end
		if session[:pic].match("/images/(.*)$")
			@picfile=$1
  		else
			@picfile=get_pic
		end
# 		logger.info("mypic: #{@picfile}")
	end
end