class MemosController < ApplicationController
  default_search_scope :memos
  before_filter :find_forum, :only => [:new, :create, :preview]
  before_filter :find_attachments, :only => [:preview]
  before_filter :find_memo, :except => [:new, :create, :preview]
  before_filter :authenticate_user_edit, :only => [:edit, :update]
  before_filter :authenticate_user_destroy, :only => [:destroy]
  
  helper :attachments
  include AttachmentsHelper

  layout 'base_memos'

  def quote
    @subject = @memo.subject
    @subject = "RE: #{@subject}" unless @subject.starts_with?('RE:')

    @content = "#{ll(Setting.default_language, :text_user_wrote, @memo.author)} <br/> &nbsp; "
    @content << @memo.content.to_s.strip.gsub(%r{<pre>((.|\s)*?)</pre>}m, '[...]').gsub(/(\r?\n|\r\n?)/, "\n") + "</blockquote>\n\n<br/>"
    @content = "<blockquote>" << @content
  end

  def new
    @memo = Memo.new
    @memo.forum_id = @forum.id

    respond_to do |format|
      format.html {
        render action: :new ,layout: 'base'
      }
      format.json { render json: @memo }
    end
  end
  
  def create
    @memo = Memo.new(params[:memo])
    @memo.forum_id = params[:forum_id]
    @memo.author_id = User.current.id

    @memo.save_attachments(params[:attachments] || (params[:memo] && params[:memo][:uploads]))

    respond_to do |format|
      if @memo.save
        format.html { redirect_to back_memo_url, notice: "#{l :label_memo_create_succ}" }
        format.json { render json: @memo, status: :created, location: @memo }
      else
        # back_error_page = @memo.parent_id.nil? ? forum_path(@forum) : forum_memo_path(@forum, @memo.parent_id)
        format.html { redirect_to back_memo_or_forum_url, notice: "#{l :label_memo_create_fail}" }
        format.json { render json: @memo.errors, status: :unprocessable_entity }
      end
    end
  end
  
  def show
    pre_count = 20
    @current_count = pre_count * (params['page'].to_i - 1) if params['page'].to_i > 0
    @offset, @limit = api_offset_and_limit({:limit => pre_count})
    @replies_all = @memo.replies
    @reply_count = @replies_all.count
    @reply_pages = Paginator.new @reply_count, @limit, params['page']
    @offset ||= @reply_pages.offset
    @replies = @replies_all.offset(@offset).limit(@limit).all
    @mome_new = Memo.new


    # @memo = Memo.find_by_id(params[:id])
    # @forum = Forum.find(params[:forum_id])
    # @replies = @memo.replies
    # @mome_new = Memo.new
    
    respond_to do |format|
      format.html # show.html.erb
      format.json { render json: @memo }
    end
  end

  def edit
  end

  def update
    respond_to do |format|
      if(@memo.update_attribute(:subject, params[:memo][:subject]) && 
         @memo.update_attribute(:content, params[:memo][:content]))
        format.html {redirect_to back_memo_url, notice: "#{l :label_memo_create_succ}"}
      else
        format.html { render action: "edit" }
        format.json { render json: @person.errors, status: :unprocessable_entity }
      end
    end
  end

  def destroy
    @memo.destroy

    respond_to do |format|
      # format.html { redirect_to @back_url }
      format.html { redirect_to back_memo_or_forum_url }
      format.json { head :no_content }
    end
  end

  private

  def find_memo
    return unless find_forum
    @memo = @forum.memos.find(params[:id])
  rescue ActiveRecord::RecordNotFound
    render_404
    nil
  end

  def find_forum
    @forum = Forum.find(params[:forum_id])
  rescue ActiveRecord::RecordNotFound
    render_404
    nil
  end

  def authenticate_user_edit
    find_memo
    render_403 unless @memo.editable_by? User.current
  end

  def authenticate_user_destroy
    find_memo
    render_403 unless @memo.destroyable_by? User.current
  end

  def back_memo_url
    forum_memo_path(@forum, (@memo.parent_id.nil? ? @memo : @memo.parent_id))
  end

  def back_memo_or_forum_url
    @memo.parent_id.nil? ? forum_url(@forum) : forum_memo_url(@forum, @memo.parent_id)
  end

end