class PoolController < ApplicationController
  layout "bacuview-layout"

  def key_sql
    { "name"   => "name",         "name-"   => "name desc", 
      "type"   => "pooltype",     "type-"   => "pooltype desc",
      "retain" => "volretention", "retain-" => "volretention desc",
      "vols"   => "numvols",      "vols-"   => "numvols desc" }
  end

  def index
    @page_title = "Pools"
    @pool = Pool.find(:all, :order => sort_key(:psort, key_sql))
    volume_counts = @pool.map{ |pool| pool.numvols }
    @max_vols = volume_counts.max
    @total_vols = volume_counts.inject(0) {|sum, i| sum + i}
  end

  def show
    @pool = Pool.find(params[:pid])
    @page_title = "Pool " + @pool.name
    params[:action] = params[:pid] = nil
  end

  def dist
    return unless BACUVIEW['have_gruff']
    g = Gruff::Pie.new(500)
    g.theme_37signals
    g.title = "Media Distribution"
    @pool = Pool.find(:all, 
      :select => "name, numvols", :order => sort_key(:psort, key_sql))
    for pool in @pool do
      g.data pool.name, [ pool.numvols ]
    end
    send_data(g.to_blob, :disposition => 'inline', :type => 'image/png')
  end

end