Add command help

1 files changed, 22 insertions, 0 deletions

diff --git a/modules/Help.rb b/modules/Help.rb
new file mode 100644
index 0000000..84d9a9e
--- /dev/null
+++ b/modules/Help.rb
@@ -0,0 +1,22 @@
+require 'xmpp4r/message'
+
+require_relative '../module_base'
+
+module Lain
+  module Modules
+    class Help < Base
+      def on_message(muc, message)
+        return unless message.type == :groupchat
+        return unless /!help\b/ =~ message.body
+
+        muc.send(Jabber::Message.new(message.to, "Commands:" + @lain.commands.reduce('') { |s, cmd| "#{s}\n#{cmd[0]}: #{cmd[1]}" }))
+      end
+
+      def commands
+        {
+          '!help' => 'show this help'
+        }
+      end
+    end
+  end
+end