class KPM::Installer

def self.from_file(config_path=nil, logger=nil)
  if config_path.nil?
    # Install Kill Bill, Kaui and the KPM plugin by default
    config = {'killbill' => {'version' => 'LATEST', 'plugins' => {'ruby' => [{'name' => 'kpm'}]}}, 'kaui' => {'version' => 'LATEST'}}
  else
    config = YAML::load_file(config_path)
  end
  Installer.new(config, logger)
end

def initialize(raw_config, logger=nil)
  @config = raw_config['killbill']
  @kaui_config = raw_config['kaui']
  if logger.nil?
    logger = Logger.new(STDOUT)
    logger.level = Logger::INFO
  end
  nexus_config = !@config.nil? ? @config['nexus'] : (!@kaui_config.nil? ? @kaui_config['nexus'] : nil)
  nexus_ssl_verify = !nexus_config.nil? ? nexus_config['ssl_verify'] : true
  super(logger, nexus_config, nexus_ssl_verify)
end

def install(force_download=false, verify_sha1=true)
  help = nil
  unless @config.nil?
    help = install_tomcat if @config['webapp_path'].nil?
    install_killbill_server(@config['group_id'], @config['artifact_id'], @config['packaging'], @config['classifier'], @config['version'], @config['webapp_path'], force_download, verify_sha1)
    install_plugins(force_download, verify_sha1)
    unless @config['default_bundles'] == false
      install_default_bundles(@config['plugins_dir'], @config['default_bundles_version'], @config['version'], force_download, verify_sha1)
    end
  end
  unless @kaui_config.nil?
    if @kaui_config['webapp_path'].nil?
      @logger.warn('No webapp_path specified for Kaui, aborting installation')
      return
    end
    install_kaui(@kaui_config['group_id'], @kaui_config['artifact_id'], @kaui_config['packaging'], @kaui_config['classifier'], @kaui_config['version'], @kaui_config['webapp_path'], force_download, verify_sha1)
  end
  help
end

def install_java_plugins(force_download, verify_sha1)
  return if @config['plugins'].nil? or @config['plugins']['java'].nil?
  infos = []
  @config['plugins']['java'].each do |plugin|
    infos << install_plugin(plugin['name'], nil, plugin['group_id'], plugin['artifact_id'], plugin['packaging'], plugin['classifier'], plugin['version'], @config['plugins_dir'], 'java', force_download, verify_sha1, false)
  end
  infos
end

def install_plugins(force_download, verify_sha1)
  install_java_plugins(force_download, verify_sha1)
  install_ruby_plugins(force_download, verify_sha1)
end

def install_ruby_plugins(force_download, verify_sha1)
  return if @config['plugins'].nil? or @config['plugins']['ruby'].nil?
  verify_jruby_jar=true
  infos = []
  @config['plugins']['ruby'].each do |plugin|
    infos << install_plugin(plugin['name'], nil, plugin['group_id'], plugin['artifact_id'], plugin['packaging'], plugin['classifier'], plugin['version'], @config['plugins_dir'], 'ruby', force_download, verify_sha1, verify_jruby_jar)
    verify_jruby_jar=false
  end
  infos
end

def install_tomcat(dir=Dir.pwd)
  # Download and unpack Tomcat
  manager = KPM::TomcatManager.new(dir, @logger)
  manager.download
  # Update main config
  root_war_path = manager.setup
  @config['webapp_path'] = root_war_path
  unless @kaui_config.nil?
    @kaui_config['webapp_path'] = Pathname.new(File.dirname(root_war_path)).join('kaui.war').to_s
  end
  # Help message
  manager.help
end