# Ferret killer - John Leach - http://johnleach.co.uk
# Crashes Ferret 0.10.14, 0.11.2 (most likely all 0.10.* versions)
# run with first argument 'index' to run an indexer process
# run with first argument 'search' to run a searcher process
# run one indexer and one searcher - Ferret will crash out with various errors
#
class FerretKiller
  require 'rubygems'
  require 'ferret'
  include Ferret
  @@ferret_index = nil

  # Return the Ferret index object for this class.  Initialise if necessary
  def self.ferret_index(options = {})
    ferret_init_index(options) if @@ferret_index.nil? or options[:create] == true
    @@ferret_index
  end
  
  # Initialise ferret index for this class
  def self.ferret_init_index(options = {})
    @@ferret_index.close unless @@ferret_index.nil?
    field_infos = Index::FieldInfos.new(:term_vector => :no, :store => :no)
    field_infos.add_field(:id, :index => :untokenized, :store => :yes)
    field_infos.add_field(:text)
    @@ferret_index = Index::Index.new(:path => "ferret_killer_index/", 
      :field_infos => field_infos, 
      :id_field => :id, 
      :key => :id, 
      :default_input_field => :text,
      :create => true)
  end
  
  # Execute a search on the ferret index and return matching collection objects
  def self.ferret_search(search_string, options = {}, activerecord_options = {})
    versions = {}
    options = { :limit => 10 }.merge(options)
    options[:page] = 1 unless options[:page]
    @@query_parser ||= QueryParser.new(:default_slop => 2,
      :all_fields => [:text, :title, :url],
      :or_default => false)
    query = @@query_parser.parse(search_string)
    hits = self.ferret_index.search( query,
      :limit => options[:limit], :sort => options[:sort],
      :offset => (options[:page].to_i-1) * options[:limit] )
    return hits
  end
end

if ARGV.first == "index"
  puts "Indexing..."
  while true do
    id = rand(2000)
    FerretKiller.ferret_index << { :id => id, :text => "no real text here" }
    puts "Added id #{id} to index"
  end

end

if ARGV.first == "search"
  puts "Searching..."
  while true do
    puts FerretKiller.ferret_search("here")
  end
end