class TopicsController < ApplicationController
  before_filter :find_forum
  before_filter :find_topic, :only => [:show, :edit, :update, :destroy]
  def index
    respond_to do |format|
      format.html { redirect_to forum_path(@forum) }
      format.xml do
        @topics = find_forum.topics.paginate(:page => current_page)
        render :xml => @topics
      end
    end
  end
  def edit
  end
  def show
    respond_to do |format|
      format.html do
        if logged_in?
          current_user.seen!
          (session[:topics] ||= {})[@topic.id] = Time.now.utc
        end
        @topic.hit! unless logged_in? && @topic.user_id == current_user.id
        @posts = @topic.posts.paginate :page => current_page
        @post = Post.new
      end
      format.xml { render :xml => @topic }
    end
  end
  def new
    @topic = Topic.new
    @topic.forum = @forum
    respond_to do |format|
      format.html # new.html.erb
      format.xml { render :xml => @topic }
    end
  end
  def create
    @topic = current_user.post @forum, params[:topic]
    respond_to do |format|
      if @topic.new_record?
        format.html { render :action => "new" }
        format.xml { render :xml => @topic.errors, :status => :unprocessable_entity }
      else
        flash[:notice] = 'topic created'
        format.html { redirect_to(forum_topic_path(@forum, @topic)) }
        format.xml { render :xml => @topic, :status => :created, :location => forum_topic_url(@forum, @topic) }
      end
    end
  end
  def update
    current_user.revise @topic, params[:topic]
    respond_to do |format|
      if @topic.errors.empty?
        flash[:notice] = 'topic updated'
        format.html { redirect_to(forum_topic_path(@forum, @topic)) }
        format.xml { head :ok }
      else
        format.html { render :action => "edit" }
        format.xml { render :xml => @topic.errors, :status => :unprocessable_entity }
      end
    end
  end
  def destroy
    @topic.destroy
    respond_to do |format|
      format.html { redirect_to(@forum) }
      format.xml { head :ok }
    end
  end
protected
  def find_forum
    @forum = Forum.find_by_permalink(params[:forum_id])
  end
  def find_topic
    @topic = @forum.topics.find_by_permalink(params[:id])
  end
end