require 'rubygems'
require "pp"
require File.join(File.dirname(__FILE__),'exception.rb')

begin
  require 'sinatra/base'
  require "logger"
  require "thin"
  require 'activesupport' unless ({}.respond_to? :to_json)
rescue LoadError => e
  p <<DOC
-----------------------------------------------------------------------
LPM say:
The LPM server require sinatra and activesupport.
Please exec "gem install sinatra" or "gem install activesupport" or "gem install logger" or "gem instasll thin" first.
-----------------------------------------------------------------------
Ruby say:
#{e}
-----------------------------------------------------------------------
DOC
  exit(-1)
end

module Lpmp
  def self.run!(vars)
    raise LoggerNotExist,"logger is needed,$logger in lpmp will pass to vars[:logger].but now vars[:logger] => #{vars[:logger]}" unless vars[:logger]
    
    case vars[:mode].to_sym
    when :PULL
      vars[:logger].debug "Entry PULL mode"
      require File.join(File.dirname(__FILE__),'pull','lpmp.rb')
      LPMPServer.run!('0.0.0.0',vars[:port]||6789)
    when :BGPULL
      # not complete.
      # require File.join(File.dirname(__FILE__),'bg_pull','lpmp.rb')
    when :XQPUSH
      vars[:logger].debug "Entry XQPUSH mode"
      require File.join(File.dirname(__FILE__),'xq_push','lpmp.rb')
      require File.join(File.dirname(__FILE__),'xq_push','caichen.rb')
      begin
        LPMPServer.run(Lpmp::Caichen.new(vars),:port => vars[:port]||6789)
      rescue ParamsError => e
        vars[:logger].fatal "XQPUSH mode start failed.Maybe Lpmp::Caichen.new(#{vars.inspect}) error.#{$/}#{e.to_s}."
        raise e
      rescue Exception => e
        p "LPMP start error!"
        p e.to_s
      end
    else
      vars[:logger].error "No mode fit.vars[:mode] => #{vars[:mode]}.#{$/}Only one of %w[PULL BGPULL XQPUSH] is available."
    end
  end
end