module Alchemy
  module Admin
    class AttachmentsController < Alchemy::Admin::BaseController

      protect_from_forgery :except => [:create]

      def index
        if in_overlay?
          archive_overlay
        else
          @attachments = Attachment.find_paginated(params, per_page_value_for_screen_size)
        end
      end

      def new
        @attachment = Attachment.new
        if in_overlay?
          @while_assigning = true
          @content = Content.find(params[:content_id], :select => 'id') if !params[:content_id].blank?
          @swap = params[:swap]
          @options = hashified_options
        end
        render :layout => !request.xhr?
      end

      def create
        @attachment = Attachment.new(:uploaded_data => params[:Filedata])
        @attachment.name = @attachment.filename
        @attachment.save
        if in_overlay?
          @while_assigning = true
          @content = Content.find(params[:content_id], :select => 'id') if !params[:content_id].blank?
          @swap = params[:swap]
          @options = hashified_options
        end
        @attachments = Attachment.find_paginated(params, per_page_value_for_screen_size)
        @message = t('File %{name} uploaded succesfully', :name => @attachment.name)
        # Are we using the Flash uploader? Or the plain html file uploader?
        if params[Rails.application.config.session_options[:key]].blank?
          flash[:notice] = @message
          redirect_to :action => :index
        end
      end

      def edit
        @attachment = Attachment.find(params[:id])
        render :layout => false
      end

      def update
        @attachment = Attachment.find(params[:id])
        oldname = @attachment.name
        if @attachment.update_attributes(params[:attachment])
          flash[:notice] = t("File renamed successfully from: '%{from}' to '%{to}'", :from => oldname, :to => @attachment.name)
        else
          render :action => "edit"
        end
        redirect_to admin_attachments_path(:page => params[:page], :query => params[:query], :per_page => params[:per_page])
      end

      def destroy
        @attachment = Attachment.find(params[:id])
        name = @attachment.name
        @attachment.destroy
        flash[:notice] = t("File: '%{name}' deleted successfully", :name => name)
      end

      def show
        @attachment = Attachment.find(params[:id])
        send_file(
          @attachment.public_filename,
          {
            :name => @attachment.filename,
            :type => @attachment.content_type,
            :disposition => 'inline'
          }
        )
      end

      def download
        @attachment = Attachment.find(params[:id])
        send_file(
          @attachment.full_filename, {
            :name => @attachment.filename,
            :type => @attachment.content_type,
            :disposition => 'attachment'
          }
        )
      end

      private

      def in_overlay?
        !params[:content_id].blank?
      end

      def archive_overlay
        @content = Content.find(params[:content_id])
        @options = params[:options]
        if !params[:only].blank?
          condition = "filename LIKE '%.#{params[:only].join("' OR filename LIKE '%.")}'"
        elsif !params[:except].blank?
          condition = "filename NOT LIKE '%.#{params[:except].join("' OR filename NOT LIKE '%.")}'"
        else
          condition = ""
        end
        @attachments = Attachment.where(condition).order(:name)
        respond_to do |format|
          format.html { render :partial => 'archive_overlay' }
        end
      end

    end
  end
end