quality.rake

begin
  require 'flog'
  require 'flay'
  require 'reek/rake_task'

  namespace :quality do
    desc "Analyze for code complexity"
    task :flog do
      flog = Flog.new :methods => true
      flog.flog ['app', 'lib']
      threshold = 45

      bad_methods = flog.totals.select do |name, score|
        score > threshold
      end
      bad_methods.sort { |a,b| a[1] <=> b[1] }.each do |name, score|
        puts "%8.1f: %s" % [score, name]
      end
      
      raise "Flog found #{bad_methods.size} methods with a complexity > #{threshold}" unless bad_methods.empty?
    end

    desc "Analyze for code duplication"
    task :flay do
      threshold = 70
      flay = Flay.new(:fuzzy => false, :diff => true, :summary => false, :verbose => false, :mass => threshold)
      flay.process(*Dir["app/**/*.rb", "lib/**/*.rb"])

      flay.report

      raise "Flay found #{flay.masses.size} chunks of code have a duplicate mass > #{threshold}" unless flay.masses.empty?
    end

    desc "Analyze code for smelliness"
    Reek::RakeTask.new do |t|
      t.fail_on_error = true
      t.verbose = false
      t.source_files = Dir["app/models/*.rb", "lib/**/*.rb"]
    end
  end

  desc "Run all quality related tasks"
  task :quality => ['quality:flog', 'quality:flay', 'quality:reek']

rescue LoadError
  task :quality do
    puts "Unable to find flog, flay, or reek"
  end
end