=begin
  Camaleon CMS is a content management system
  Copyright (C) 2015 by Owen Peredo Diaz
  Email: owenperedo@gmail.com
  This program is free software: you can redistribute it and/or modify   it under the terms of the GNU Affero General Public License as  published by the Free Software Foundation, either version 3 of the  License, or (at your option) any later version.
  This program is distributed in the hope that it will be useful,  but WITHOUT ANY WARRANTY; without even the implied warranty of  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the  GNU Affero General Public License (GPLv3) for more details.
=end
module CamaleonCms::Admin::MenusHelper
  include CamaleonCms::Admin::BreadcrumbHelper

  def admin_menus_add_commons
    admin_menu_add_menu("dashboard", {icon: "dashboard", title: t('camaleon_cms.admin.sidebar.dashboard'), url: cama_admin_dashboard_path})
    #if can? :manager, :content
    items = []

    current_site.post_types.eager_load(:metas).visible_menu.all.each do |pt|
      pt = pt.decorate
      items_i = []
      items_i << {icon: "list", title: "#{t('camaleon_cms.admin.post_type.all')}", url: cama_admin_post_type_posts_path(pt.id)} if can? :posts, pt
      items_i << {icon: "plus", title: "#{t('camaleon_cms.admin.post_type.add_new')}  ", url: new_cama_admin_post_type_post_path(pt.id)} if can? :create_post, pt
      if pt.manage_categories?
        items_i << {icon: "folder-open", title: t('camaleon_cms.admin.post_type.categories'), url: cama_admin_post_type_categories_path(pt.id)} if can? :categories, pt
      end
      if pt.manage_tags?
        items_i << {icon: "tags", title: t('camaleon_cms.admin.post_type.tags'), url: cama_admin_post_type_post_tags_path(pt.id)} if can? :post_tags, pt
      end
      items << {icon: pt.get_option('icon', "copy"), title: pt.the_title, url: "", items: items_i } if items_i.present? #if can? :posts, pt
    end
    admin_menu_add_menu("content", {icon: "database", title: t('camaleon_cms.admin.sidebar.contents'), url: "", items: items, datas: "data-intro='#{t("camaleon_cms.admin.intro.content")}' data-position='right' data-wait='600'"}) if items.present?
    #end

    admin_menu_add_menu("media", {icon: "picture-o", title: t('camaleon_cms.admin.sidebar.media'), url: cama_admin_media_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.media")}' data-position='right'"}) if can? :manager, :media
    admin_menu_add_menu("comments", {icon: "comments", title: t('camaleon_cms.admin.sidebar.comments'), url: cama_admin_comments_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.comments")}' data-position='right'"}) if can? :manager, :comments

    items = []
    items << {icon: "desktop", title: t('camaleon_cms.admin.sidebar.themes'), url: cama_admin_appearances_themes_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.themes")}' data-position='right'"} if can? :manager, :themes
    items << {icon: "archive", title: t('camaleon_cms.admin.sidebar.widgets'), url: cama_admin_appearances_widgets_main_index_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.widgets")}' data-position='right'"} if can? :manager, :widgets
    items << {icon: "list", title: t('camaleon_cms.admin.sidebar.menus'), url: cama_admin_appearances_nav_menus_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.menus", image: view_context.asset_path("camaleon_cms/admin/intro/menus.png"))}' data-position='right'"} if can? :manager, :nav_menu
    items << {icon: "code", title: t('camaleon_cms.admin.sidebar.shortcodes', default: "Shortcodes"), url: cama_admin_settings_shortcodes_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.shortcodes")}' data-position='right'"} if can? :manager, :shortcodes
    admin_menu_add_menu("appearance", {icon: "paint-brush", title: t('camaleon_cms.admin.sidebar.appearance'), url: "", items: items, datas: "data-intro='#{t("camaleon_cms.admin.intro.appearance")}' data-position='right' data-wait='500'"}) if items.present?


    admin_menu_add_menu("plugins", {icon: "plug", title: "#{t('camaleon_cms.admin.sidebar.plugins')} <small class='label label-primary'>#{PluginRoutes.all_plugins.clone.delete_if{|plugin| plugin[:domain].present? && !plugin[:domain].split(",").include?(current_site.the_slug) }.size}</small>", url: cama_admin_plugins_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.plugins")}' data-position='right'"}) if can? :manager, :plugins

    if can? :manager, :users
      items = []
      items << {icon: "list", title: t('camaleon_cms.admin.users.all_users'), url: cama_admin_users_path}
      items << {icon: "plus", title: t('camaleon_cms.admin.users.add_user'), url: new_cama_admin_user_path}
      items << {icon: "group", title: t('camaleon_cms.admin.users.user_roles'), url: cama_admin_user_roles_path}
      admin_menu_add_menu("users", {icon: "users", title: t('camaleon_cms.admin.sidebar.users'), url: "", items: items, datas: "data-intro='#{t("camaleon_cms.admin.intro.users")}' data-position='right' data-wait='500'"})
    end

    if can? :manager, :settings
      items = []
      items << {icon: "desktop", title: t('camaleon_cms.admin.sidebar.general_site'), url: cama_admin_settings_site_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.gral_site")}' data-position='right'"}
      items << {icon: "cog", title: t('camaleon_cms.admin.sidebar.sites'), url: cama_admin_settings_sites_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.sites")}' data-position='right'"} if current_site.manage_sites?
      items << {icon: "files-o", title: t('camaleon_cms.admin.sidebar.content_groups'), url: cama_admin_settings_post_types_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.post_type")}' data-position='right'"}
      items << {icon: "cog", title: t('camaleon_cms.admin.sidebar.custom_fields'), url: cama_admin_settings_custom_fields_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.custom_fields")}' data-position='right'"}
      items << {icon: "language", title: t('camaleon_cms.admin.sidebar.languages'), url: cama_admin_settings_languages_path, datas: "data-intro='#{t("camaleon_cms.admin.intro.languages")}' data-position='right'"}
      admin_menu_add_menu("settings", {icon: "cogs", title: t('camaleon_cms.admin.sidebar.settings'), url: "", items: items, datas: "data-intro='#{t("camaleon_cms.admin.intro.settings")}' data-position='right' data-wait='500'"})
    end

  end

  # add menu item to admin menu at the the end
  # key: key for menu
  # menu: is hash like this: {icon: "dashboard", title: "My title", url: my_path, items: [sub menus]}
  # - icon: font-awesome icon (it is already included "fa fa-")
  # - title: title for the menu
  # - url: url for the menu
  # - items: is an recursive array of the menus without a key
  # - datas: html data text for this menu item
  def admin_menu_add_menu(key, menu)
    @_admin_menus[key] = menu
  end

  # append sub menu to menu with key = key
  # menu: is hash like this: {icon: "dashboard", title: "My title", url: my_path, items: [sub menus]}
  def admin_menu_append_menu_item(key, menu)
    return unless @_admin_menus[key].present?
    @_admin_menus[key][:items] = [] unless @_admin_menus[key].has_key?(:items)
    @_admin_menus[key][:items] << menu
  end

  # prepend sub menu to menu with key = key
  # menu: is hash like this: {icon: "dashboard", title: "My title", url: my_path, items: [sub menus]}
  def admin_menu_prepend_menu_item(key, menu)
    return unless @_admin_menus[key].present?
    @_admin_menus[key][:items] = [] unless @_admin_menus[key].has_key?(:items)
    @_admin_menus[key][:items] = [menu] + @_admin_menus[key][:items]
  end

  # add menu before menu with key = key_target
  # key_menu: key for menu
  # menu: is hash like this: {icon: "dashboard", title: "My title", url: my_path, items: [sub menus]}
  def admin_menu_insert_menu_before(key_target, key_menu, menu)
    res = {}
    @_admin_menus.each do |key, val|
      res[key_menu] = menu if key == key_target
      res[key] = val
    end
    @_admin_menus = res
  end

  # add menu after menu with key = key_target
  # key_menu: key for menu
  # menu: is hash like this: {icon: "dashboard", title: "My title", url: my_path, items: [sub menus]}
  def admin_menu_insert_menu_after(key_target, key_menu, menu)
    res = {}
    @_admin_menus.each do |key, val|
      res[key] = val
      res[key_menu] = menu if key == key_target
    end
    @_admin_menus = res
  end

  # draw admin menu as html
  def admin_menu_draw
    res= []
    @_tmp_menu_parents = []
    menus = _get_url_current
    menus.each do |menu|
      res << "<li data-key='#{menu[:key]}' class='#{"treeview" if menu.has_key?(:items)} #{'active' if is_active_menu(menu[:key])}' #{menu[:datas]}>
        <a href='#{menu[:url]}'><i class='fa fa-#{menu[:icon]}'></i> <span class=''>#{menu[:title]}</span> #{'<i class="fa fa-angle-left pull-right"></i>' if menu.has_key?(:items) }</a>
        #{_admin_menu_draw(menu[:items]) if menu.has_key?(:items)}
      </li>"
    end
    res.join
  end

  private
  def _get_url_current
    menus = @_admin_menus.map{|key, menu|  menu[:key] = key; menu}
    current_path = URI(site_current_url).path
    current_path_array = current_path.split('/')
    a_size = current_path_array.size
    (0..a_size).each do |i|
      resp = _search_in_menus(menus, current_path_array[0..a_size-i].join('/'))
      bool = resp[:bool]
      menus = resp[:menus]
      break if bool
    end
    menus
  end

  def is_active_menu(key)
    @_tmp_menu_parents.map{|item| item[:key] == key}.include?(true)
  end

  def _search_in_menus(menus, _url, parent_index = 0)
    bool = false
    menus.each_with_index do |menu, index_menu|
      menu[:key] = "#{parent_index}__#{rand(999...99999)}" if menu[:key].nil?
      uri = URI(menu[:url].to_s)
      url_path = uri.path
      url_query = uri.query
      bool = url_path.to_s == _url.to_s && url_path.present?
      # params compare
      if url_query.present?
        bool &&= Rack::Utils.parse_nested_query(url_query.to_s) == Rack::Utils.parse_nested_query(URI(site_current_url).query.to_s)
      end
      if menu.has_key?(:items)
        resp = _search_in_menus(menu[:items], _url, parent_index + 1)
        bool = bool || resp[:bool]
        menu[:items] = resp[:menus]
      end
      if bool
        @_tmp_menu_parents[parent_index] = {url: menu[:url], title: menu[:title], key: menu[:key]}
        break
      end
    end
    {menus: menus, bool: bool}
  end

  def _admin_menu_draw(items)
    res = []
    res  << "<ul class='treeview-menu'>"
    items.each do |item|
      res  << "<li class='#{"xn-openable" if item.has_key?(:items)} #{'active' if is_active_menu(item[:key])}' #{item[:datas]}>
                <a href='#{item[:url]}'><i class='fa fa-#{item[:icon]}'></i> #{item[:title]} #{'<i class="fa fa-angle-left pull-right"></i>' if item.has_key?(:items) }</a>
                #{_admin_menu_draw(item[:items]) if item.has_key?(:items)}
              </li>"
    end
    res  << "</ul>"
    res.join
  end

end