class NoUsesController < ApplicationController
  # GET /no_uses
  # GET /no_uses.json
  def index
    @no_uses = NoUse.all

    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @no_uses }
    end
  end

  # GET /no_uses/1
  # GET /no_uses/1.json
  def show
    @no_use = NoUse.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.json { render json: @no_use }
    end
  end

  # GET /no_uses/new
  # GET /no_uses/new.json
  def new
    @no_use = NoUse.new

    respond_to do |format|
      format.html # new.html.erb
      format.json { render json: @no_use }
    end
  end

  # GET /no_uses/1/edit
  def edit
    @no_use = NoUse.find(params[:id])
  end

  # POST /no_uses
  # POST /no_uses.json
  def create
    @no_use = NoUse.new(params[:no_use])

    respond_to do |format|
      if @no_use.save
        format.html { redirect_to @no_use, notice: 'No use was successfully created.' }
        format.json { render json: @no_use, status: :created, location: @no_use }
      else
        format.html { render action: "new" }
        format.json { render json: @no_use.errors, status: :unprocessable_entity }
      end
    end
  end

  # PUT /no_uses/1
  # PUT /no_uses/1.json
  def update
    @no_use = NoUse.find(params[:id])

    respond_to do |format|
      if @no_use.update_attributes(params[:no_use])
        format.html { redirect_to @no_use, notice: 'No use was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: "edit" }
        format.json { render json: @no_use.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /no_uses/1
  # DELETE /no_uses/1.json
  def destroy
    @no_use = NoUse.find(params[:id])
    @no_use.destroy

    respond_to do |format|
      format.html { redirect_to no_uses_url }
      format.json { head :no_content }
    end
  end
  private
  
  def find_no_use
    klass = Object.const_get(params[:object_type].camelcase) rescue nil
    if klass && klass.respond_to?('watched_by')
      @no_use = klass.find_all_by_id(Array.wrap(params[:object_id]))
    end
    render_404 unless @no_use.present?
  end

  def set_watcher(watchables, user, watching)
    watchables.each do |watchable|
      watchable.set_watcher(user, watching)
      #  @user = watchable     # added by william
      if watching
        # 修改 user和project的状态
        if watchable.instance_of?(User)
          #写user_statuses表
          UserStatus.find_by_user_id(watchable.id).update_watchers_count(1)
        elsif watchable.instance_of?(Project)
          #写project_statuese表
           ProjectStatus.find_by_project_id(watchable.id).update_watchers_count(1)
        end
      else
        # 修改 user和project的状态
        if watchable.instance_of?(User)
          #写user_statuses表
         UserStatus.find_by_user_id(watchable.id).update_watchers_count(-1)
        elsif watchable.instance_of?(Project)
          #写project_statuese表 :project_status
          ProjectStatus.find_by_project_id(watchable.id).update_watchers_count(-1)
        end
      end

    end
    respond_to do |format|
      format.html { redirect_to_referer_or {render :text => (watching ? 'Watcher added.' : 'Watcher removed.'), :layout => true}}
      format.js { render :partial => 'set_watcher', :locals => {:user => user, :watched => watchables} }
    end
  end
end