Added chat post route and initial tests

website/src/controllers/api-v3/chat.js

@@ -39,4 +39,60 @@ api.getChat = {
   },
 };
 
+/**
+ * @api {post} /groups/:groupId/chat Post chat message to a group
+ * @apiVersion 3.0.0
+ * @apiName PostCat
+ * @apiGroup Chat
+ *
+ * @apiParam {UUID} groupId The group _id
+ * @apiParam {message} message The chat's message
+ * @apiParam {previousMsg} previousMsg The previous chat message which will force a return of the full group chat
+ *
+ * @apiSuccess {Array} chat An array of chat messages
+ */
+api.postChat = {
+  method: 'POST',
+  url: '/groups/:groupId/chat',
+  middlewares: [authWithHeaders(), cron],
+  handler (req, res, next) {
+    let user = res.locals.user;
+    let groupId = req.params.groupId;
+    let chatUpdated;
+
+    req.checkParams('groupId', res.t('groupIdRequired')).notEmpty();
+    req.checkBody('message', res.t('messageGroupChatBlankMessage')).notEmpty();
+
+    let validationErrors = req.validationErrors();
+    if (validationErrors) return next(validationErrors);
+
+    Group.getGroup(user, groupId)
+    .then((group) => {
+      if (!group) throw new NotFound(res.t('groupNotFound'));
+      if (group.type !== 'party' && user.flags.chatRevoked) {
+        throw new NotFound('Your chat privileges have been revoked.');
+      }
+
+      let lastClientMsg = req.query.previousMsg;
+      chatUpdated = lastClientMsg && group.chat && group.chat[0] && group.chat[0].id !== lastClientMsg ? true : false;
+
+      group.sendChat(req.body.message, user);
+
+      if (group.type === 'party') {
+        user.party.lastMessageSeen = group.chat[0].id;
+        user.save();
+      }
+      return group.save();
+    })
+    .then((group) => {
+      if (chatUpdated) {
+        res.respond(200, {chat: group.chat});
+      } else {
+        res.respond(200, {message: group.chat[0]});
+      }
+    })
+    .catch(next);
+  },
+};
+
 export default api;