class MobImageFactory

# File lib/mob_image_factory.rb, line 2
def initialize(args)
  @args = args
end

# File lib/mob_image_factory.rb, line 6
def produce
  if @args.empty? || @args.size < 2
    return usage
  end
  @type = @args[0]
  @infilename = @args[1]
  @outfilename = @args[2].nil? ? @infilename : @args[2]

  system "identify #{@infilename}"

  if @type == 'android_icon'
    #Android App icons
    convert 192, "android", "xxxhdpi"
    convert 144, "android", "xxhdpi"
    convert 96, "android", "xhdpi"
    convert 72, "android", "hdpi"
    convert 48, "android", "mdpi"
  elsif @type == 'android_notification_icon'
    #Android Notification icons
    convert_greyscale 96, "android", "xxxhdpi"
    convert_greyscale 72, "android", "xxhdpi"
    convert_greyscale 48, "android", "xhdpi"
    convert_greyscale 36, "android", "hdpi"
    convert_greyscale 24, "android", "mdpi"
  else
    return usage
  end

  "Done"
end

# File lib/mob_image_factory.rb, line 42
def convert(size, platform, folder, filename_prepend = "", extra_cmd_options = "")
  system "mkdir #{platform}"
  system "mkdir #{platform}/#{folder}"
  system "convert #{@infilename} #{extra_cmd_options} -resize #{size}x#{size} #{platform}/#{folder}/#{filename_prepend}#{@outfilename}"
  puts "convert #{@infilename} #{extra_cmd_options} -resize #{size}x#{size} #{platform}/#{folder}/#{filename_prepend}#{@outfilename}"
end

# File lib/mob_image_factory.rb, line 38
def convert_greyscale(size, platform, folder, filename_prepend = "")
  convert size, platform, folder, filename_prepend, "-colorspace Gray"
end

# File lib/mob_image_factory.rb, line 49
def usage
  "\n"+
  "Usage: mob_image_factory convert_type <filename> <optional_output_filename>\n\n"+
  "convert_types: android_icon, android_notification_icon"+
  "\n\n"
end