require 'rubygems'
require 'RMagick'
require 'gruff'
class IskController < ApplicationController
	def index
		@snapshots = Balance.find(:all, :limit => 168, :order => "id DESC").reverse
	    if @snapshots.size > 0 then
	      g = Gruff::Area.new('800x300')
	      g.theme = {
	         :colors => %w(#FFAB3F),
	         :marker_color => '#CCC',
	         :background_colors => '#1D1D1D',
	         :font_color => 'white'
	       }
	      g.hide_legend = true
	      g.hide_title = true
	      g.y_axis_label = "Balance (ISK)"
	      dates = @snapshots.collect{|s|s.date.to_date.to_formatted_s(:short)}
	      g.labels = dates.to_hash_values {|v| dates.index(v)}
	      g.data("Amount", @snapshots.collect{|s|s.balance})
	      send_data(g.to_blob,
	            :disposition => 'inline',
	            :type => 'image/png',
	            :filename => "balance.png")
	    end
	end

end