class Redundant

# File lib/redundant.rb, line 49
def self.findAssets(path)
  require 'find'


  assets = []

  if File.directory? "#{path}/app/assets/images/"
    Find.find("#{path}/app/assets/images/").each do |asset|
      assets.push asset.gsub(/#{path}/, '') if asset.match(/(png|jpg|jpeg|gif|webp)/i)
    end
  else
    puts "Can't find an assets image directory (#{path}/app/assets/images/)"
  end
  return assets
end

# File lib/redundant.rb, line 2
def self.search(args=nil)
  puts "Searching for redundant assets"

  path = args || Dir.pwd

  puts path

  assets = self.findAssets(path);
  puts "Existing Assets: #{assets.size}"

  checkFolders = ['assets/stylesheets', 'assets/javascripts', 'helpers', 'views']

  checkFolders.each do |folder|
    if (File.directory?("#{path}/app/#{folder}"))
      Find.find("#{path}/app/#{folder}").each do |file|
       if (File.file?(file) && file !~ /\.DS_Store/)
          file_contents = File.open(file, "r")
          data = file_contents.read
          file_contents.close

          data.scan(/\/assets\/(.*?\.(jpg|jpeg|png|gif|webp))/i).each do |image|
            assets.delete("/app/assets/images/#{image.first}")
          end

          data.scan(/image_tag.*?"(.*?)"/).each do |image|

            assets.delete("/app/assets/images/#{image.first}")
          end

        end
      end
    else
      puts "The directory #{path}/app/#{folder} does not exist"
    end
  end

  puts "==============================="
  puts "Unused Assets (#{assets.size})"
  puts "==============================="

  assets.each do |asset|
    puts asset
  end

  return ""
end