lib/galaxy_converter/note.rb in galaxy_converter-2.1.2 vs lib/galaxy_converter/note.rb in galaxy_converter-3.0.1

@@ -1,28 +1,48 @@
 module GalaxyConverter
   class Note
     PREFIXES = ["how much is", "how many credits is"]
-    QUESTION_MARK = "?"
+    QUESTION = "?"
+    NO_IDEA = "I have no idea what you are talking about"
 
-    def self.bulk(notes)
+    def self.from(notes)
       Array(notes).map { |body| new(body) }
     end
 
-    attr_reader :body
+    attr_reader :body, :units, :good
 
     def initialize(body)
       @body = body.to_s.strip.downcase
+      @units, @good = detect
     end
 
     def question?
-      @body.end_with?(QUESTION_MARK)
+      @body.end_with?(QUESTION)
     end
 
     def commercial?
       !!@body.index("credits")
     end
 
-    def stripped
-      @body.sub(/#{PREFIXES.join("|")}/, "").sub(QUESTION_MARK, "").strip
+    def answer(total = 0)
+      return NO_IDEA if total.zero?
+      [].tap do |s|
+        s << units
+        s << good.to_s.capitalize
+        s << "is"
+        s << "%g" % total
+        s << "Credits" if commercial?
+      end.reject(&:empty?).join(" ")
+    end
+
+    private def detect
+      tokens = stripped.split
+      return [tokens.join(" "), nil] unless commercial?
+      good = tokens.pop
+      [tokens.join(" "), good]
+    end
+
+    private def stripped
+      @body.sub(/#{PREFIXES.join("|")}/, "").sub(QUESTION, "").strip
     end
   end
 end