#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2013 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2013 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See doc/COPYRIGHT.rdoc for more details.
#++

module UsersHelper
  def users_status_options_for_select(selected)
    user_count_by_status = User.count(:group => 'status').to_hash
    user_count_by_status.merge! :blocked => User.blocked.count,
                                :all => User.not_builtin.count,
                                User::STATUSES[:active] =>
                                  User.active.not_blocked.count
    # use non-numerical values as index to prevent clash with normal user
    # statuses
    status_symbols = {:all => :all}
    status_symbols.merge!(User::STATUSES.reject{|n,i| n == :builtin})
    status_symbols[:blocked] = :blocked

    statuses = status_symbols.map do |name, index|
      ["#{translate_user_status(name.to_s)} (#{user_count_by_status[index].to_i})",
       index]
    end
    options_for_select(statuses, selected)
  end

  def translate_user_status(status_name)
    I18n.t(status_name.to_sym, :scope => :user)
  end

  # Format user status, including brute force prevention status
  def full_user_status(user, include_num_failed_logins=false)
    user_status = ''
    unless [User::STATUSES[:active], User::STATUSES[:builtin]].include?(user.status)
      user_status = translate_user_status(user.status_name)
    end
    brute_force_status = ''
    if user.failed_too_many_recent_login_attempts?
      format = include_num_failed_logins ? :blocked_num_failed_logins : :blocked
      brute_force_status = I18n.t(format,
                                  :count => user.failed_login_count,
                                  :scope => :user)
    end

    both_statuses = user_status + brute_force_status
    if user_status.present? and brute_force_status.present?
      I18n.t(:status_user_and_brute_force,
             :user => user_status,
             :brute_force => brute_force_status,
             :scope => :user)
    elsif not both_statuses.empty?
      both_statuses
    else
      I18n.t(:status_active)
    end
  end

  STATUS_CHANGE_ACTIONS = {
      # status, blocked    => [[button_title, button_name], ...]
      [:active, false]     => [[:lock, 'lock']],
      [:active, true]      => [[:reset_failed_logins, 'unlock'],
                               [:lock, 'lock']],
      [:locked, false]     => [[:unlock, 'unlock']],
      [:locked, true]      => [[:unlock_and_reset_failed_logins, 'unlock']],
      [:registered, false] => [[:activate, 'activate']],
      [:registered, true]  => [[:activate_and_reset_failed_logins, 'activate']],
    }

  # Create buttons to lock/unlock a user and reset failed logins
  def build_change_user_status_action(user)
    status = user.status_name.to_sym
    blocked = !!user.failed_too_many_recent_login_attempts?

    result = ''.html_safe
    (STATUS_CHANGE_ACTIONS[[status, blocked]] || []).each do |title, name|
      result << (yield I18n.t(title, :scope => :user), name) + ' '.html_safe
    end
    result
  end

  def change_user_status_buttons(user)
    build_change_user_status_action(user) do |title, name|
      submit_tag(title, :name => name)
    end
  end

  def change_user_status_links(user)
    icons = {
      'unlock' => 'unlocked',
      'activate' => 'unlocked',
      'lock' => 'locked'
    }
    build_change_user_status_action(user) do |title, name|
      link_to title,
              change_status_user_path(user,
                                      name.to_sym => '1',
                                      :back_url => request.fullpath),
              :method => :post,
              :class => "icon icon-#{icons[name]}"
    end
  end

  # Options for the new membership projects combo-box
  def options_for_membership_project_select(user, projects)
    options = content_tag('option', "--- #{l(:actionview_instancetag_blank_option)} ---")
    options << project_tree_options_for_select(projects) do |p|
      {:disabled => (user.projects.include?(p))}
    end
    options
  end

  def user_mail_notification_options(user)
    user.valid_notification_options.collect {|o| [l(o.last), o.first]}
  end

  def user_settings_tabs
    tabs = [{:name => 'general', :partial => 'users/general', :label => :label_general},
            {:name => 'memberships', :partial => 'users/memberships', :label => :label_project_plural}
            ]
    if Group.all.any?
      tabs.insert 1, {:name => 'groups', :partial => 'users/groups', :label => :label_group_plural}
    end
    tabs
  end
end