# -*- coding: utf-8 -*-

# TODO: 不要なメソッドを削除する
module MultiAuthHelper

  def production?
    return (RAILS_ENV == "production")
  end

  def logged_in?
    !!@login_user
  end

  def rss_auto_discovery(options = {})
    options = options.dup
    title = options.delete(:title) || raise(ArgumentError)
    href  = options.delete(:href)  || raise(ArgumentError)
    raise(ArgumentError) unless options.empty?

    return %|<link rel="alternate" type="application/rss+xml" title="#{h(title)}" href="#{h(href)}" />|
  end

  def additional_head(&block)
    @additional_head_html ||= ""
    @additional_head_html  += capture(&block)
  end

  def side_column(&block)
    @side_column_html ||= ""
    @side_column_html  += capture(&block)
  end

  def even_or_odd(index)
    return %w[even odd][index % 2]
  end

  def icon16(path, alt = nil)
    return image_tag(
      path,
      :width  => 16,
      :height => 16,
      :alt    => alt,
      :title  => alt)
  end

  def enable_icon
    return icon16("icons/fam/tick.png", "有効")
  end

  def disable_icon
    return icon16("icons/fam/stop.png", "無効")
  end

  def enable_or_disable_icon(enable)
    return (enable ? enable_icon : disable_icon)
  end

  def add_icon
    return icon16("icons/fam/add.png", "追加")
  end

  def edit_icon
    return icon16("icons/fam/cog.png", "編集")
  end

  def delete_icon
    return icon16("icons/fam/bin.png", "削除")
  end

  def help_icon(alt = "ヘルプ")
    return icon16("icons/fam/help.png", alt)
  end

  def feed_icon
    return icon16("icons/fam/feed.png", "フィード")
  end

  def csv_icon
    return icon16("icons/fam/table_save.png", "CSV")
  end

  def yyyymmdd(time, null = "-")
    return time.try(:strftime, "%Y年%m月%d日") || null
  end

  def yyyymmdd_hhmm(time, null = "-")
    return time.try(:strftime, "%Y年%m月%d日 %H時%M分") || null
  end

  def mmdd_hhmm(time, null = "-")
    return time.try(:strftime, "%m月%d日 %H時%M分") || null
  end

  def user_nickname(user, nickname_column = :nickname)
    nickname = user.__send__(nickname_column)
    return (nickname.blank? ? h("名無しさん") : h(nickname))
  end
end