require 'bsearch'
require 'time'

if defined? RHO_ME
  require 'rho/rhoevent_bb'
else
  require 'rho/rhoevent_c'
end

module Rho
	module RhoEvent
    # These values determined experimentally on iPhone
    MIN_TIME = Time.utc(2008, 'jan', 1, 0, 0, 0)
    MAX_TIME = Time.utc(2030, 'dec', 31, 23, 59, 59)
    
    #TODO: update examples    
    # Examples of how to use select method:
    #
      # selected = Rho::RhoEvent.select('first_name' => 'David') { |x| x[1]['last_name']=='Taylor' }
    # ==> returns record(s) of the David Taylor
    #
      # selected = Rho::RhoEvent.select('first_name' => 'Kate')
    # ==> Returns all records of Kate
    #
      # selected = Rho::RhoEvent.select('last_name' => 'User') do |x|
      # 	x[1]['first_name']=='Test' and x[1]['company_name']=="rhomobile"
      # end
    # ==> returns all records of the Test User from the company rhomobile
    #
    def self.select(index, &block)
      key, value = index.keys[0], index.values[0]
      if @events.nil? or @key != key
        @key, @events = key, find(:all).to_a.sort! {|x,y| x[1][key] <=> y[1][key] }
      end
      found = @events[@events.bsearch_range {|x| x[1][key] <=> value}]
      unless found.nil? or block.nil?
        return found.select(&block)
      end
      return found
    end

	end # module RhoEvent
end # module Rho