Added sqlite db and email queue.

server/db/database.js

@@ -0,0 +1,79 @@
+'use strict';
+
+var async = require('async');
+var fs = require('fs');
+var glob = require('glob');
+var path = require('path');
+
+function applyPatch(db, file, callback) {
+    fs.readFile(file, function (err, contents) {
+        if (err) {
+            return callback(err);
+        }
+
+        var version = path.basename(file, '.sql');
+
+        db.get('SELECT * FROM schema_version WHERE version = ?', version, function (err, row) {
+            if (err) {
+                return callback(err);
+            }
+
+            if (row) {
+                // patch is already applied. skip!
+                return callback(null);
+            }
+
+            var sql = 'BEGIN TRANSACTION;\n'
+                    + contents.toString() + '\n'
+                    + 'INSERT INTO schema_version (version) VALUES (\'' + version + '\');\n'
+                    + 'END TRANSACTION;';
+
+            db.exec(sql, callback);
+        });
+    });
+}
+
+function applyMigrations(db, callback) {
+    var sql = 'BEGIN TRANSACTION; CREATE TABLE IF NOT EXISTS schema_version (\n'
+            + '    version VARCHAR(255) PRIMARY KEY ASC,\n'
+            + '    applied_at DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL\n'
+            + '); END TRANSACTION;';
+    db.exec(sql, function (err) {
+        if (err) {
+            return callback(err);
+        }
+
+        glob(__dirname + '/patches/*.sql', function (err, files) {
+            if (err) {
+                return callback(err);
+            }
+
+            async.each(
+                files,
+                function (file, fileCallback) {
+                    applyPatch(db, file, fileCallback);
+                },
+                callback
+            );
+        });
+    });
+}
+
+module.exports = {
+    init: function (callback) {
+        var SQLite3 = require('sqlite3');
+        var db = new SQLite3.Database('/tmp/test.sqlite');
+
+        applyMigrations(db, function (err) {
+            if (err) {
+                throw err;
+            }
+
+            angular.module('ffffng').factory('Database', function () {
+                return db;
+            });
+
+            callback();
+        });
+    }
+};