#!/usr/bin/env ruby

require 'sippy_cup'
require 'getoptlong'

def usage
  puts "#{$0} [OPTS] </path/to/sippy_cup_definition.yml>"
  puts
  puts "--compile, -c  Compile the given scenario YAML to XML and PCAP"
  puts "--run, -r      Run the scenario. If used without -c, must supply a previously"
  puts "               compiled SippyCup file"
  puts "--help, -h     Print this usage information"
  puts "--version, -v  Print SippyCup version"
end

opts = GetoptLong.new(
  ['--compile', '-c', GetoptLong::NO_ARGUMENT],
  ['--run', '-r', GetoptLong::NO_ARGUMENT],
  ['--help', '-h', GetoptLong::NO_ARGUMENT],
  ['--version', '-V', GetoptLong::NO_ARGUMENT]
)

@compile = false
@run = false
opts.each do |opt, arg|
  case opt
  when '--compile'
    @compile = true
    @definition_file = arg
  when '--run'
    @run = true
    @compiled_file = arg
  when '--help'
    usage
    exit 0
  when '--version'
    puts "SippyCup version #{SippyCup::VERSION}"
    exit 0
  end
end

unless ARGV.count == 1
  puts "ERROR: Must supply the SippyCup definition file"
  puts
  usage
  exit 1
end

@definition_file = ARGV.shift

unless File.readable? @definition_file
  puts "ERROR: Unable to read definition file"
  puts
  usage
  exit 1
end

unless @compile || @run
  puts "No action (compile or run) specified. Exiting."
  usage
  exit 1
end

@definition = YAML.load File.read @definition_file

unless @definition.has_key? :scenario
  @definition[:scenario] = @definition_file.gsub /\.yml$/, ''
end
unless @definition.has_key? :name
  @definition[:name] = @definition[:scenario]
end


runner = SippyCup::Runner.new @definition
runner.compile if @compile
runner.run if @run