Adding services/data folder

Author: andrewshell

.gitignore

@@ -2,6 +2,6 @@
 .env
 .node-version
 coverage/
-data/
+/data/
 node_modules/
 Procfile

services/data/index.js

@@ -0,0 +1,25 @@
+(function () {
+    "use strict";
+
+    var db,
+        init = require('./init.js');
+
+    function getDb(callback) {
+        if (undefined === db) {
+            init(function cbInitDb(err, myDb) {
+                if (err) {
+                    return callback(err);
+                }
+                db = myDb;
+                return callback(null, db);
+            });
+        } else {
+            return callback(null, db);
+        }
+    }
+
+    module.exports = {
+        'init': init,
+        'getDb': getDb
+    };
+}());

services/data/init.js

@@ -0,0 +1,39 @@
+(function () {
+    "use strict";
+
+    var async = require('async'),
+        DBMigrate = require('db-migrate'),
+        sqlite3 = require('sqlite3');
+
+    function connectToDatabase(filename, callback) {
+        var db = new sqlite3.Database(
+            filename,
+            sqlite3.OPEN_READWRITE | sqlite3.OPEN_CREATE,
+            function completeConnect(err) {
+                if (err) {
+                    return callback(err);
+                }
+                return callback(null, db);
+            }
+        );
+    }
+
+    function init(callback) {
+        var dbmigrate;
+        async.waterfall([
+            function asyncDoMigration(callback) {
+                dbmigrate = DBMigrate.getInstance(true);
+                dbmigrate.up(callback);
+            },
+            function asyncConnectToDatabase(callback) {
+                if ('sqlite3' === dbmigrate.config.getCurrent().settings.driver) {
+                    connectToDatabase(dbmigrate.config.getCurrent().settings.filename, callback);
+                } else {
+                    callback('This application currently requires sqlite3 as the driver');
+                }
+            }
+        ], callback);
+    }
+
+    module.exports = init;
+}());