class Pry::PluginManager

def gem_list
  Gem.refresh
  Gem::Specification.respond_to?(:each) ? Gem::Specification : Gem.source_index.find_name('')
end

def initialize
  @plugins = []
end

def load_plugins
  @plugins.each do |plugin|
    plugin.activate! if plugin.enabled?
  end
end

def locate_plugins
  gem_list.each do |gem|
    next if gem.name !~ PRY_PLUGIN_PREFIX
    plugin_name = gem.name.split('-', 2).last
    plugin = Plugin.new(plugin_name, gem.name, gem, false)
    @plugins << plugin.tap(&:enable!) if plugin.supported? && !plugin_located?(plugin)
  end
  @plugins
end

def plugin_located?(plugin)
  @plugins.any? { |existing| existing.gem_name == plugin.gem_name }
end

def plugins
  h = Hash.new { |_, key| NoPlugin.new(key) }
  @plugins.each do |plugin|
    h[plugin.name] = plugin
  end
  h
end