Add singleton logger class.

1 files changed, 48 insertions, 0 deletions

diff --git a/logger.rb b/logger.rb
new file mode 100644
index 0000000..f84c157
--- /dev/null
+++ b/logger.rb
@@ -0,0 +1,48 @@
+module Dinobot
+  class Logger
+    @@instance = nil
+    @@mutex = Mutex.new
+
+    def in(*lines)
+      str = lines.join("\n")
+
+      puts str.gsub(/^/, "\e[32m<<\e[0m ")
+    end
+
+    def out(*lines)
+      str = lines.join("\n")
+
+      puts str.gsub(/^/, "\e[36m>>\e[0m ")
+    end
+
+    def error(*lines)
+      str = lines.join("\n")
+
+      puts str.gsub(/^/, "\e[31m!!\e[0m ")
+    end
+
+    def info(*lines)
+      str = lines.join("\n")
+
+      puts str.gsub(/^/, "\e[33m==\e[0m ")
+    end
+
+    def indent(*lines)
+      str = lines.join("\n")
+
+      puts str.gsub(/^/, '   ')
+    end
+
+    class << self
+      def instance
+        return @@instance if @@instance
+
+        @@mutex.synchronize do
+          @@instance ||= new
+        end
+      end
+    end
+
+    private_class_method :allocate, :new
+  end
+end