add Problem class

Author: markburns

lib/problematic_variable_finder/problem.rb

@@ -0,0 +1,42 @@
+module ProblematicVariableFinder
+  class Problem
+    attr_accessor \
+      :gem_name,
+      :gem_version,
+      :file_name,
+      :line_number,
+      :out_of_date,
+      :type,
+      :code
+
+    def initialize(**attrs)
+      attrs.each do |key, value|
+        send("#{key}=", value)
+      end
+    end
+
+    def github_link
+      @github_link ||=
+        begin
+          if source_code_uri
+            "#{source_code_uri}/#{file_name}:#{line_number}"
+          else
+            "#{gem_name} #{file_name}:#{line_number}"
+          end
+        end
+    end
+
+    def source_code_uri
+      gem_spec&.metadata['source_code_uri'] 
+
+    end
+
+    def gem_spec
+      return nil if gem_name.nil?
+
+      @gem_spec ||= Gem::Specification.find_all_by_name(gem_name).find do |s| 
+        s.version.to_s == gem_version
+      end
+    end
+  end
+end