class Hyde
class CLI
module Helpers
  def show_help_for(task)
    name = params.first
    task = task(name)
    pass "No such command. Try: #{executable} help"  unless task

    help = task.help
    if help
      help.each { |line| err line }
      err
    else
      err "Usage: #{executable} #{task.usage || name}"
      err "#{task.description}."  if task.description
    end
  end

  def tasks_for(category)
    tasks.select { |name, t| t.category == category }
  end

  def other_tasks
    tasks.select { |name, t| t.category.nil? }
  end

  def say_info(str)
    say_status '*', str, 30
  end

  def say_status(what, cmd, color=32)
    c1 = "\033[0;#{color}m"
    c0 = "\033[0;m"
    puts "#{c1}%10s#{c0}  %s" % [ what, cmd ]
  end

  def no_project
    "Error: This is not a Hyde project.\n" +
    "You may convert it into one by creating a config file:\n" +
    "  $ #{executable} create .\n\n" +
    "You may also create an empty project in a new directory:\n" +
    "  $ #{executable} create NAME\n"
  end

  def project?
    !! @hydefile
  end

  def project
    @project ||= begin
      pass no_project unless project?
      Dir.chdir File.dirname(@hydefile)

      begin
        project = Hyde::Project.new
        pass no_project  unless project.config_file?
      rescue LegacyError
        err "This is a legacy Hyde project."
        err "To force it, try editing `hyde.conf` and upgrade the version line to `hyde_requirement: 0.1`."
        pass
      rescue VersionError => e
        err e.message
        pass
      end

      project
    end
  end
end
end
end