class ChatController < PublicController

  before_filter :login_required
  before_filter :check_environment_feature

  def start_session
    login = user.jid
    password = current_user.crypted_password
    begin
      jid, sid, rid = RubyBOSH.initialize_session(login, password, "http://#{environment.default_hostname}/http-bind",
                                                  :wait => 30, :hold => 1, :window => 5)
      session_data = { :jid => jid, :sid => sid, :rid => rid }
      render :text => session_data.to_json, :layout => false, :content_type => 'application/javascript'
    rescue
      render :action => 'start_session_error', :layout => false, :status => 500
    end
  end

  def avatar
    profile = environment.profiles.find_by_identifier(params[:id])
    filename, mimetype = profile_icon(profile, :minor, true)
    if filename =~ /^https?:/
      redirect_to filename
    else
      data = File.read(File.join(Rails.root, 'public', filename))
      render :text => data, :layout => false, :content_type => mimetype
      expires_in 24.hours
    end
  end

  def update_presence_status
    if request.xhr?
      current_user.update_attributes({:chat_status_at => DateTime.now}.merge(params[:status] || {}))
    end
    render :nothing => true
  end

  def save_message
    to = environment.profiles.find_by_identifier(params[:to])
    body = params[:body]

    ChatMessage.create!(:to => to, :from => user, :body => body)
    render :text => 'ok'
  end

  def recent_messages
    other = environment.profiles.find_by_identifier(params[:identifier])
    if other.kind_of?(Organization)
      messages = ChatMessage.where('to_id=:other', :other => other.id)
    else
      messages = ChatMessage.where('(to_id=:other and from_id=:me) or (to_id=:me and from_id=:other)', {:me => user.id, :other => other.id})
    end

    messages = messages.order('created_at DESC').includes(:to, :from).offset(params[:offset]).limit(20)
    messages_json = messages.map do |message|
      {
        :body => message.body,
        :to => {:id => message.to.identifier, :name => message.to.name},
        :from => {:id => message.from.identifier, :name => message.from.name},
        :created_at => message.created_at
      }
    end
    render :json => messages_json.reverse
  end

  protected

  def check_environment_feature
    unless environment.enabled?('xmpp_chat')
      render_not_found
      return
    end
  end

end