lib/simplehasher.rb in simple-hasher-0.0.4 vs lib/simplehasher.rb in simple-hasher-0.0.5

@@ -1,27 +1,49 @@
 class SimpleHasher
-  ALLOWED_CHARS = "CLK0oXklU2d6RvTrS1aDBx9GfN3e7FnQOtsmPi85MYq4AWHbZIuwJEgjVhpzyc"
 
   def self.encode(id)
-    length = ALLOWED_CHARS.length
+    length = self.config.allowed_chars.length
 
     while id > length -1
-      hash = ALLOWED_CHARS[id % length,1].concat( hash || "" )
+      hash = self.config.allowed_chars[id % length,1].concat( hash || "" )
       id = (id / length).floor
     end
 
-    ALLOWED_CHARS[id,1].concat(hash || "")
+    self.config.allowed_chars[id,1].concat(hash || "")
   end
 
   def self.decode(hash)
-    length = ALLOWED_CHARS.length
+    length = self.config.allowed_chars.length
     size = hash.length - 1
     array = hash.split('')
-    id = ALLOWED_CHARS.index(array.pop)
+    id = self.config.allowed_chars.index(array.pop)
     i = 0
     array.each do |c| 
-      id += ALLOWED_CHARS.index(c) * (length ** (size - i))
+      id += self.config.allowed_chars.index(c) * (length ** (size - i))
       i += 1
     end
     id
+  end
+
+  def self.allowed_chars
+    self.config.allowed_chars
+  end
+
+   # Handles the configuration values for the module
+  class Config
+    attr_accessor :allowed_chars
+
+    def initialize
+      @allowed_chars = "CLK0oXklU2d6RvTrS1aDBx9GfN3e7FnQOtsmPi85MYq4AWHbZIuwJEgjVhpzyc"
+    end
+  end
+
+  # Returns of initializes the Module configuration
+  def self.config
+    @@config ||= Config.new
+  end
+
+  # Allows for setting config values via a block
+  def self.configure
+    yield self.config
   end
 end