class Jars::LockDown

def attach_jar_coordinates_from_bundler_dependencies(maven)
  load_path = $LOAD_PATH.dup
  require 'bundler'
  # TODO: make this group a commandline option
  Bundler.setup('default')
  maven.property('jars.bundler', true)
  cwd = File.expand_path('.')
  Gem.loaded_specs.each do |_name, spec|
    # if gemspec is local then include all dependencies
    maven.attach_jars(spec, all_dependencies: cwd == spec.full_gem_path)
  end
rescue LoadError => e
  if Jars.verbose?
    warn e.message
    warn 'no bundler found - ignore Gemfile if exists'
  end
rescue Bundler::GemfileNotFound
# do nothing then as we have bundler but no Gemfile
rescue Bundler::GemNotFound
  warn "can not setup bundler with #{Bundler.default_lockfile}"
  raise
ensure
  $LOAD_PATH.replace(load_path)
end

def basedir
  File.expand_path('.')
end

def initialize(debug, verbose)
  @debug = debug
  @verbose = verbose
end

def lock_down(vendor_dir = nil, force: false, update: false, tree: nil)
  out = File.expand_path('.jars.output')
  tree_provided = tree
  tree ||= File.expand_path('.jars.tree')
  maven.property('jars.outputFile', out)
  maven.property('maven.repo.local', Jars.local_maven_repo)
  maven.property('jars.home', File.expand_path(vendor_dir)) if vendor_dir
  maven.property('jars.lock', File.expand_path(Jars.lock))
  maven.property('jars.force', force)
  maven.property('jars.update', update) if update
  # tell not to use Jars.lock as part of POM when running mvn
  maven.property('jars.skip.lock', true)
  args = ['gem:jars-lock']
  args += ['dependency:tree', '-P -gemfile.lock', "-DoutputFile=#{tree}"] if tree_provided
  puts
  puts '-- jar root dependencies --'
  puts
  status = maven.exec(*args)
  exit 1 unless status
  if File.exist?(tree)
    puts
    puts '-- jar dependency tree --'
    puts
    puts File.read(tree)
    puts
  end
  puts
  puts File.read(out).gsub("#{File.dirname(out)}/", '')
  puts
ensure
  FileUtils.rm_f out
  FileUtils.rm_f tree
end

def maven
  @maven ||= maven_new
end

def maven_new
  factory = MavenFactory.new({}, @debug, @verbose)
  pom = File.expand_path('lock_down_pom.rb', __dir__)
  m = factory.maven_new(pom)
  m['jruby.plugins.version'] = Jars::JRUBY_PLUGINS_VERSION
  m['dependency.plugin.version'] = Jars::DEPENDENCY_PLUGIN_VERSION
  m['jars.basedir'] = File.expand_path(basedir)
  jarfile = File.expand_path(Jars.jarfile)
  m['jars.jarfile'] = jarfile if File.exist?(jarfile)
  attach_jar_coordinates_from_bundler_dependencies(m)
  m
end