Cleanup tasks

crabfit-backend/routes/taskLegacyCleanup.js

@@ -0,0 +1,68 @@
+const dayjs = require('dayjs');
+
+module.exports = async (req, res) => {
+  if (req.header('X-Appengine-Cron') === undefined) {
+    return res.status(400).send('This task can only be run from a cron job');
+  }
+
+  const threeMonthsAgo = dayjs().subtract(3, 'month').unix();
+
+  console.log('Running LEGACY cleanup task at', dayjs().format('h:mma D MMM YYYY'));
+
+	try {
+    // Fetch events that haven't been visited in over 3 months
+    const eventQuery = req.datastore.createQuery(req.types.event).order('created');
+		let oldEvents = (await req.datastore.runQuery(eventQuery))[0];
+
+    oldEvents = oldEvents.filter(event => !event.hasOwnProperty('visited'));
+
+		if (oldEvents && oldEvents.length > 0) {
+      console.log('Found', oldEvents.length, 'events that were missing a visited date');
+
+      // Filter events that are older than 3 months and missing a visited date
+      oldEvents = oldEvents.filter(event => event.created < threeMonthsAgo);
+
+      if (oldEvents && oldEvents.length > 0) {
+        let oldEventIds = oldEvents.map(e => e[req.datastore.KEY].name);
+
+        // Fetch availabilities linked to the events discovered
+        let eventsRemoved = 0;
+        let peopleRemoved = 0;
+        await Promise.all(oldEventIds.map(async (eventId) => {
+          const peopleQuery = req.datastore.createQuery(req.types.person).filter('eventId', eventId);
+      		let oldPeople = (await req.datastore.runQuery(peopleQuery))[0];
+
+          let deleteEvent = true;
+          if (oldPeople && oldPeople.length > 0) {
+            oldPeople.forEach(person => {
+              if (person.created >= threeMonthsAgo) {
+                deleteEvent = false;
+              }
+            });
+          }
+          if (deleteEvent) {
+            if (oldPeople && oldPeople.length > 0) {
+              peopleRemoved += oldPeople.length;
+              await req.datastore.delete(oldPeople.map(person => person[req.datastore.KEY]));
+            }
+            eventsRemoved++;
+            await req.datastore.delete(req.datastore.key([req.types.event, eventId]));
+          }
+        }));
+
+        console.log('Legacy cleanup successful:', eventsRemoved, 'events and', peopleRemoved, 'people removed');
+
+  			res.sendStatus(200);
+    	} else {
+        console.log('Found', 0, 'events that are older than 3 months and missing a visited date, ending LEGACY cleanup');
+    		res.sendStatus(404);
+    	}
+		} else {
+      console.error('Found no events that are missing a visited date, ending LEGACY cleanup [DISABLE ME!]');
+			res.sendStatus(404);
+		}
+	} catch (e) {
+		console.error(e);
+		res.sendStatus(404);
+	}
+};