require 'jasmine'

module Jasmine
  class FilesList
    attr_reader :files, :filtered_files

    DEFAULT_FILES = [
      File.join(Jasmine.root, "lib/jasmine.js"),
      File.join(Jasmine.root, "lib/jasmine-html.js"),
      File.expand_path('../../../jasmine/jasmine.headless-reporter.js', __FILE__)
    ]

    def initialize(options = {})
      @options = options
      @files = DEFAULT_FILES
      use_config! if config?
    end

    def use_spec?(file)
      spec_filter.empty? || spec_filter.include?(file)
    end

    def files_to_html
      files.collect { |file|
        case File.extname(file)
        when '.js'
          %{<script type="text/javascript" src="#{file}"></script>}
        when '.coffee'
          begin
            %{<script type="text/javascript">#{CoffeeScript.compile(fh = File.open(file))}</script>}
          rescue CoffeeScript::CompilationError => e
            puts "[%s] %s: %s" % [ 'coffeescript'.color(:red), file.color(:yellow), e.message.to_s.color(:white) ]
            exit 1
          ensure
            fh.close
          end
        when '.css'
          %{<link rel="stylesheet" href="#{file}" type="text/css" />}
        end
      }
    end

    private
    def spec_filter
      @options[:only] || []
    end

    def use_config!
      @filtered_files = @files.dup

      data = @options[:config].dup
      [ [ 'src_files', 'src_dir' ], [ 'stylesheets', 'src_dir' ], [ 'helpers', 'spec_dir' ], [ 'spec_files', 'spec_dir' ] ].each do |searches, root|
        if data[searches]
          data[searches].collect do |search|
            path = search
            path = File.join(data[root], path) if data[root]
            found_files = Dir[path]

            @files += found_files

            if searches == 'spec_files'
              found_files = found_files.find_all { |file| use_spec?(file) }
            end
            @filtered_files += found_files
          end
        end
      end
    end

    def config?
      @options[:config]
    end
  end
end