add route for checking next void time

src/core/RpgEvent.js

@@ -366,4 +366,6 @@ class RpgEvent {
   }
 }
 
-export default RpgEvent;
+const rpgEvent = new RpgEvent();
+
+export default rpgEvent;

src/routes/index.js

@@ -7,6 +7,7 @@ import etag from 'etag';
 import path from 'path';
 
 import ranking from './ranking';
+import voidl from './void';
 import history from './history';
 import tiles from './tiles';
 import chunks from './chunks';
@@ -25,6 +26,11 @@ import { GUILDED_INVITE } from '../core/config';
 
 const router = express.Router();
 
+/*
+ * void info
+ */
+router.get('/void', voidl);
+
 /*
  * ranking of pixels placed
  * daily and total

src/routes/void.js

@@ -0,0 +1,18 @@
+/*
+ * send information about next void
+ */
+
+import rpgEvent from '../core/RpgEvent';
+
+export default (req, res) => {
+  res.set({
+    'Cache-Control': `public, max-age=${5 * 60}`,
+  });
+
+  if (rpgEvent.eventTimestamp) {
+    const time = new Date(rpgEvent.eventTimestamp);
+    res.send(`Next void at ${time.toUTCString()}`);
+  } else {
+    res.send('No void');
+  }
+};

src/server.js

@@ -15,7 +15,7 @@ import sequelize from './data/sql/sequelize';
 import { connect as connectRedis } from './data/redis/client';
 import routes from './routes';
 import chatProvider from './core/ChatProvider';
-import RpgEvent from './core/RpgEvent';
+import rpgEvent from './core/RpgEvent';
 import canvasCleaner from './core/CanvasCleaner';
 
 import SocketServer from './socket/SocketServer';
@@ -76,11 +76,6 @@ app.use(compression({
 
 app.use(routes);
 
-/*
-/* Hourly Event
- */
-const rpgEvent = new RpgEvent();
-
 //
 // ip config
 // -----------------------------------------------------------------------------