#!/usr/bin/env ruby
require File.dirname(__FILE__) + '/../config/boot'
require 'rubygems'
include Breakpoint

gem_command = (RUBY_PLATFORM =~ /win32/) ? 'gem.bat' : 'sudo gem'
puts "Loading application Gem configuration...\n"
gem_config = open("#{RAILS_ROOT}/config/gems.yml") { |f| YAML.load(f.read) }
if ARGV[0] == '-d'
  puts "Loading developer Gem configuration...\n"
  gem_config = gem_config + open("#{RAILS_ROOT}/config/developer_gems.yml") { |f| YAML.load(f.read) }  
end

platform = 'ruby'
gem_config.each do |gem, version|
  begin
    require_gem gem, version
  rescue Gem::LoadError => e
    puts "Gem #{gem} version #{version} not found, installing...\n"
    cmd = "#{gem_command} install #{gem} --include-dependencies --version '#{version}' "
    Open3.popen3(cmd) do | stdin, stdout, stderr |
      stdout.each_line do | line |
        if line =~ /\s(\d+).*\(#{platform}\)/
          selection = $1.dup + "\n"
          puts "Multiple Gems available, selecting #$&"
          stdin.puts(selection)
        end
      end
    end
    if $? != 0
      puts "An error occurred while installing gem #{gem}\n\n-- BEGIN GEM OUTPUT --\n\n" + output
      raise e
    end
  end  
end

puts "All required gems are installed and available.\n"
exit 0