add email model

lib/model/email.js

@@ -0,0 +1,40 @@
+'use strict';
+
+function Email() {
+  this.version = '1.0.0';
+};
+
+Email.create = function(opts) {
+  opts = opts || {};
+
+  var x = new Email();
+
+  x.createdOn = Math.floor(Date.now() / 1000);
+  x.walletId = opts.walletId;
+  x.copayerId = opts.copayerId;
+  x.to = opts.to;
+  x.subject = opts.subject;
+  x.body = opts.body;
+  x.status = 'pending';
+  x.attempts = 0;
+  x.sentOn = null;
+  return x;
+};
+
+Email.fromObj = function(obj) {
+  var x = new Email();
+
+  x.createdOn = obj.createdOn;
+  x.walletId = obj.walletId;
+  x.copayerId = obj.copayerId;
+  x.to = obj.to;
+  x.subject = obj.subject;
+  x.body = obj.body;
+  x.status = obj.status;
+  x.attempts = obj.attempts;
+  x.sentOn = obj.sentOn;
+  return x;
+};
+
+
+module.exports = Email;

lib/storage.js

@@ -19,6 +19,7 @@ var collections = {
   NOTIFICATIONS: 'notifications',
   COPAYERS_LOOKUP: 'copayers_lookup',
   PREFERENCES: 'preferences',
+  EMAIL_QUEUE: 'email_queue',
 };
 
 var Storage = function(opts) {
@@ -375,6 +376,26 @@ Storage.prototype.storePreferences = function(preferences, cb) {
   }, cb);
 };
 
+Storage.prototype.storeEmail = function(email, cb) {
+  this.db.collection(collections.EMAIL_QUEUE).update({
+    id: email.id,
+  }, txp, {
+    w: 1,
+    upsert: true,
+  }, cb);
+};
+
+Storage.prototype.fetchUnsentEmails = function(cb) {
+  this.db.collection(collections.EMAIL_QUEUE).find({
+    status: 'pending',
+  }, function(err, result) {
+    if (err) return cb(err);
+    if (!result) return cb();
+    return cb(null, Model.Email.fromObj(result));
+  });
+};
+
+
 Storage.prototype._dump = function(cb, fn) {
   fn = fn || console.log;
   cb = cb || function() {};