# encoding: utf-8
module FeduxOrgStdlib
  module GemPlugins
    class Plugin

      private

      attr_accessor :enabled, :active
      attr_writer   :gem_name

      public

      attr_reader :name, :gem_name

      def initialize(name, gem_name:, enabled:)
        @name     = name
        @gem_name = gem_name
        @enabled  = enabled
      end

      # Disable a plugin. (prevents plugin from being loaded, cannot
      # disable an already activated plugin)
      def disable
        self.enabled = false
      end

      # Enable a plugin. (does not load it immediately but puts on
      # 'white list' to be loaded)
      def enable
        self.enabled = true
      end

      # Activate the plugin (require the gem - enables/loads the
      # plugin immediately at point of call, even if plugin is
      # disabled)
      # Does not reload plugin if it's already active.
      def activate
        begin 
          if !active?
            begin
              require gem_name
            rescue LoadError
              require gem_name.gsub(/-/, '/')
            end
          end
        rescue LoadError => e
          warn "Found plugin #{gem_name}, but could not require '#{gem_name}' or '#{gem_name.gsub(/-/, '/')}'"
          warn e
        rescue StandardError => e
          warn "require '#{gem_name}' # Failed, saying: #{e}"
        end

        self.active  = true
        self.enabled = true
      end

      # Is plugin active?
      def active?
        active == true
      end

      # Is plugin enabled?
      def enabled?
        enabled == true
      end

      # Is an existing plugin
      def blank?
        false
      end
    end
  end
end