sort dates and fix date format

src/scrape.js

@@ -259,7 +259,32 @@ const read_previous_events = (path) => {
   );
 
   if (output === null) {
-    console.log(JSON.stringify([...events, ...previous_events]));
+    const all_events = [...events, ...previous_events]
+      .map((event) => {
+        const start = pathOr(null, ['date', 'start'], event);
+        if (start !== null) {
+          try {
+            event.date.start = new Date(start);
+          } catch (e) {
+            console.error(e);
+            return event;
+          }
+        }
+        return event;
+      })
+      .sort((a, b) => {
+        const b_date = b.date.start;
+        const a_date = a.date.start;
+        if (a_date > b_date) {
+          return 1;
+        }
+        if (a_date == b_date) {
+          return 0;
+        }
+        return -1;
+      });
+
+    console.log(JSON.stringify(all_events));
   }
 
   process.exit();