Redmine

# coding: utf-8

module RedminePluginloader

module Patches

  module PluginloaderPatch

    def self.included(base)

      base.extend ClassMethods

      base.send(:include, InstanceMethods)

      base.class_eval do

        cattr_accessor :plugin_requirements

        class << self

          alias_method_chain :register, :pluginloader

        end

        alias_method_chain :requires_redmine_plugin, :pluginloader

      end

    end

    module InstanceMethods

      def requires_redmine_plugin_with_pluginloader(plugin_name, arg, &block)

        self.class.plugin_requirements << [id, plugin_name, arg]

      end

    end

    module ClassMethods

      def register_with_pluginloader(id, &block)

        self.plugin_requirements ||= [ ]

        register_without_pluginloader(id, &block)

      end

      def check_plugin_requirements

        self.plugin_requirements.each do |id, dep, arg|

          plugin = self.find(id)

          begin

            plugin.requires_redmine_plugin_without_pluginloader(dep, arg)

          rescue ::Redmine::PluginNotFound => e

            raise ::Redmine::PluginRequirementError,

                "#{id} plugin requires the #{dep} plugin, which is not installed.",

                $!.backtrace

          end

        end

      end

    end

  end

  unless ::Redmine::Plugin.included_modules.include?(PluginloaderPatch)

    ::Redmine::Plugin.send(:include, PluginloaderPatch)

  end

end

end