class Runner
  
  def self.load(options = {})
    @options = options
    @inspector  = Inspector.new
    @interactor = Interactor.new(@options)
    
    puts "** RSpactor is now watching at '#{Dir.pwd}'#{' and using spec_server' if @options[:drb]}"
    
    if initial_spec_run_abort
      @interactor.start_termination_handler
    else
      @interactor.start_termination_handler
      run_all_specs
    end
    
    Listener.new do |files|
      run_specs_for_files(files)
    end
  end
  
  def self.run_all_specs
    run_spec_command([@inspector.inner_spec_directory(Dir.pwd)])
  end
  
  def self.run_specs_for_files(files)
    files_to_spec = []
    files.each do |file|
      spec_file = @inspector.find_spec_file(file)
      files_to_spec << spec_file if spec_file && !files_to_spec.include?(spec_file)
    end
    unless files_to_spec.empty?
      system("clear;") if @options[:clear]
      files_to_spec.each { |spec_file| puts spec_file }
      run_spec_command(files_to_spec)
    end
  end

  def self.run_spec_command(locations)
    if locations.first
      base_spec_root  = extract_spec_root(locations.first)
      spec_runner_bin = script_runner(locations.first)
      locations = locations.join(" ")
      cmd =  "RAILS_ENV=test; "
      cmd << "#{spec_runner_bin} "
      cmd << "#{locations} #{spec_opts(base_spec_root)} "
      cmd << "--drb " if @options[:drb]
      cmd << "-r #{File.dirname(__FILE__)}/../lib/resulting.rb -f RSpactorFormatter:STDOUT"
      # puts cmd
      system(cmd)
    end
  end
  
  def self.extract_spec_root(file)
    file[0..file.index("spec") + 4]
  end
  
  def self.spec_opts(base_spec_root)
    if File.exist?("#{base_spec_root}spec.opts")
      return "-O #{base_spec_root}spec.opts"
    else
      return "-c -f progress"
    end
  end
  
  def self.initial_spec_run_abort
    @interactor.wait_for_enter_key("** Hit <enter> to skip initial spec run", 3)
  end
  
  def self.script_runner(file)
    # root = file[0..file.index("spec") - 1]
    # if File.exist?(root + "script/spec")
    #   return root + "script/spec"
    # else
    #   "spec"
    # end
    "/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby /Library/Ruby/Gems/1.8/gems/rspec-1.1.99.10/bin/spec"
  end
end