# -*- encoding: utf-8 -*-

module Coco

  # Public: Collection of application's helpers methods.
  #
  # TODO The app is full of `Dir.pwd`. This is the root project
  # directory and must be in Configuration class (or Coco module ?).
  module Helpers
    class << self

      # Public: Get html filename (from a ruby filename) suitable for
      # the coverage directory.
      #
      # name - String full path filename.
      #
      # Examples
      #
      #   ruby = '/home/user/my_project/lib/source.rb'
      #   html = Helpers.rb2html(ruby)
      #   #=> '_lib_source.rb.html'
      #
      # Returns String HTML filename.
      def rb2html(name)
        name.sub(Dir.pwd, '').tr('/\\', '_') + '.html'
      end

      # Public: Get page title for the index.html file.
      #
      # Returns String.
      def index_title
        project_name = File.basename(Dir.pwd)
        version = File.read(File.join(Coco::ROOT, 'VERSION')).strip
        "#{project_name} - Code coverage (coco #{version})"
      end

      # Public: Expands a bulk of filenames into full path filenames.
      #
      # files - List of filenames as an Array of String.
      #
      # Returns an Array of String.
      def expand(files)
        files.map {|file| File.expand_path(file) }
      end

      # Public: Get all ruby files from a directory, including
      # sub-directories.
      #
      # directory - String directory to look into.
      #
      # Returns an Array of String.
      def rb_files_from(directory)
        rb_files = File.join(directory, "**", "*.rb")
        Dir.glob(rb_files)
      end
    end

  end

end