#!/usr/bin/env ruby
require 'gem-list'
require 'optparse'
include GemList

options = {:l => nil, :i => nil}

optparse = OptionParser.new do |opts|

	opts.banner = "Usage: gem-list [options] "

	opts.on('-l', '--list', 'List all the gems installed locally') do
		options[:l] = true
	end

	opts.on('-i', '--isInstalled', 'Find out if a gem is installed locally or not') do |gemName|
		options[:i] = true
	end

  	opts.on( '-h', '--help', 'Display this screen' ) do
    	puts opts
    	exit
  	end
end

optparse.parse!

if options[:l] != nil
	puts list
elsif options[:i] != nil
	ARGV.each do|gemName|
		puts "#{gemName} : #{isInstalled(gemName) ? :Yes : :No}"
 	end
else
	puts "Not a valid option. See help!"
end