add shamepie -- the big slices are really gross!

Gemfile

@@ -35,6 +35,8 @@ gem 'jquery-datatables-rails'
 # Use Select2 for selecting users
 gem 'select2-rails'
 
+# Chartkick for fancy graphs
+gem 'chartkick'
 
 # Use jquery as the JavaScript library
 gem 'jquery-rails'

Gemfile.lock

@@ -70,6 +70,7 @@ GEM
     capistrano-rbenv (2.0.3)
       capistrano (~> 3.1)
       sshkit (~> 1.3)
+    chartkick (1.3.2)
     coffee-rails (4.1.0)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
@@ -296,6 +297,7 @@ DEPENDENCIES
   capistrano-passenger
   capistrano-rails (~> 1.1)
   capistrano-rbenv
+  chartkick
   coffee-rails (~> 4.1.0)
   coveralls
   devise

app/controllers/concerns/statistics.rb

@@ -10,6 +10,13 @@ class Statistics < Rails::Application
     User.where.not(id: User.zeus).where('balance > 0').sum(:balance)
   end
 
+  def shamehash
+    none_shaming = shameful_users.sum(:balance)
+    shameful_users.inject({'None-shameful users' => none_shaming}) do |h, u|
+      h.merge({u.name => u.balance})
+    end
+  end
+
   private
 
   def zeus_balance

app/views/pages/landing.html.haml

@@ -8,6 +8,8 @@
 %h2 Cute Little Statistics
 %p None here yet.
 %h2 Wall of Shame
+.pure-g
+  .pure-u-1-2
     %table.pure-table
       %thead
         %th Shame on
@@ -19,3 +21,6 @@
             // Won't divide by zero because there won't be any users with
             // a shameful debt if the total debt is zero.
             %td.shame-percentage= "#{100 * user.balance / @statistics.total_debt}%"
+  .pure-u-1-2
+    = javascript_include_tag "//www.google.com/jsapi", "chartkick"
+    = pie_chart @statistics.shamehash