[FEATURE] serve a badge for number of available achievements (#41)

* serve a badge for number of available achievements

* add the badge to the readme

README.md

@@ -1,6 +1,8 @@
 ## achievibit
 <img src="https://achievibit.herokuapp.com/images/favicon.png" width="150">
 [![Open Source Love](https://badges.frapsoft.com/os/v1/open-source.svg?v=102)](https://github.com/ellerbrock/open-source-badge/)
+[![Supported achievements](https://achievibit.herokuapp.com/achievementsBadge)
+
 ------
 github hook system to integrate achievements for repositories
 

index.js

@@ -13,6 +13,7 @@ var express = require('express'), // call express
     cons = require('consolidate'),
     moment = require('moment'),
     _ = require('lodash'),
+    badge = require('gh-badges'),
     nconf = require('nconf'),
     ngrok = require('ngrok');
 
@@ -25,6 +26,13 @@ var url = nconf.get('databaseUrl');
 var db = monk(url);
 var app = express(); // define our app using express
 
+var achievements = require('require-all')({
+  dirname     :  __dirname + '/achievements',
+  filter      :  /(.+achievement)\.js$/,
+  excludeDirs :  /^\.(git|svn)$/,
+  recursive   : true
+});
+
 // use scribe.js for logging
 var console = require('./consoleService')('SERVER', ['magenta', 'inverse'], process.console);
 var eventManager = require('./eventManager');
@@ -128,6 +136,16 @@ app.post('*', jsonParser, function(req, res) {
   });
 });
 
+app.get('/achievementsBadge', function(req, res) {
+  badge.loadFont('./Verdana.ttf', function(err) {
+    badge({ text: ["achievements", _.keys(achievements).length], colorA: "#894597", colorB: "#5d5d5d", template: "flat" },
+      function(svg, err) {
+        res.setHeader('Content-Type', 'image/svg+xml;charset=utf-8');
+        res.send(svg);
+      });
+  });
+});
+
 app.get('/download/extension', function(req, res) {
   var file = __dirname + '/public/achievibit-chrome-extension.crx';
   res.download(file);

package.json

@@ -20,6 +20,8 @@
     "compression": "^1.6.2",
     "consolidate": "^0.14.1",
     "express": "^4.14.0",
+    "gh-badges": "^1.3.0",
+    "gist-sync": "Thatkookooguy/gist-sync",
     "githubhook": "^1.6.1",
     "gulp": "^3.9.1",
     "gulp-util": "^3.0.7",
@@ -40,7 +42,6 @@
     "serve-favicon": "^2.3.0",
     "socket.io": "^1.4.8",
     "swig": "^1.4.2",
-    "tinycolor2": "^1.4.1",
-    "gist-sync": "Thatkookooguy/gist-sync"
+    "tinycolor2": "^1.4.1"
   }
 }