Caching in progress

app/controllers/replays_controller.ts

@@ -21,59 +21,32 @@ interface SentryPagination {
 }
 export default class ReplaysController {
 
-  public async search({ response }: HttpContext) {
-    let results = await db.rawQuery(`
-SELECT
-  u.display_name,
-  u.sessions,
-  u.total_time_seconds,
-  u.total_time_readable,
-  u.average_session_time_readable,
-  u.average_time_seconds,
-  r.id AS last_session_id,
-  r.finished_at AS last_session_time
+  public async stats({ request, response }: HttpContext) {
+    const {sendToWebhook} = request.qs()
+    const cacheKey = `replays:sync:latest_version`
+    const latestFetchVersion = await redis.get(`replays:fetch:latest_version`)
+    const latestQueryVersion = await redis.get(`replays:stats:latest_version`)
+    if (latestFetchVersion == latestQueryVersion) {
+      let results
+      results = await redis.get(`replays:sync:version:${latestQueryVersion}:results`) 
+      if (!results) {
+        console.log('no data in cache, updating')
+        results = await getResults()
+            await redis.set(`replays:sync:version:${latestQueryVersion}:results`, JSON.stringify(results))
 
-FROM (
-  -- Aggregate sessions in the last 30 days
-  SELECT
-    "user" ->> 'display_name' AS display_name,
-    COUNT(duration) AS sessions,
-    SUM(duration) AS total_time_seconds,
-    AVG(duration) AS average_time_seconds,
-    CONCAT(
-      FLOOR(SUM(duration) / 86400), 'd ',
-      FLOOR(MOD(SUM(duration), 86400) / 3600), 'h ',
-      FLOOR(MOD(SUM(duration), 3600) / 60), 'm'
-    ) AS total_time_readable,
-    CONCAT(
-      FLOOR(COUNT(duration) / 86400), 'd ',
-      FLOOR(MOD(COUNT(duration), 86400) / 3600), 'h ',
-      FLOOR(MOD(COUNT(duration), 3600) / 60), 'm'
-    ) AS average_session_time_readable
-  FROM
-    replays
-  WHERE
-    finished_at >= NOW() - INTERVAL '30 days'
-  GROUP BY
-    "user" ->> 'display_name'
-) u
-
--- LATERAL JOIN to get latest session (either within 30d or fallback to latest overall)
-JOIN LATERAL (
-  SELECT id, finished_at
-  FROM replays
-  WHERE "user" ->> 'display_name' = u.display_name
-  ORDER BY
-    CASE WHEN finished_at >= NOW() - INTERVAL '30 days' THEN 0 ELSE 1 END,
-    finished_at DESC
-  LIMIT 1
-) r ON true
-
-ORDER BY
-  u.total_time_seconds DESC;`
-    )
+      }
+      console.log('resultssdsdfds')
+      return response.json(results)
+    } else {
+      let results = await getResults()
+    console.log('results quer', latestQueryVersion)
+    await redis.set(`replays:stats:version:${latestQueryVersion}:results`, JSON.stringify(results))
+    await redis.set(`replays:stats:latest_version`, latestFetchVersion)
+    await redis.set(`replays:fetch:latest_version`, latestFetchVersion)
+    return response.json(results)
+    if (sendToWebhook) {
           try {
-
+            console.log('syncing to webhook')
     await fetch(env.get('WEBHOOK_URL'), 
       {
         headers: 
@@ -87,6 +60,9 @@ ORDER BY
   } catch(e) {
     console.error('error sending webhook data', e)
   }
+    }
+    }
+
     response.json(results.rows)
   }
   public async list({ request, inertia }: HttpContext) {
@@ -136,6 +112,13 @@ ORDER BY
       queryString = `?start=${start}&end=${end}`
     }
     const replays = await fetchBatch(`https://sentry.io/api/0/organizations/${SENTRY_ORG}/replays/${queryString}`)
+    let latestVersion = await redis.get(`replays:fetch:latest_version`)
+    if (!latestVersion) {
+      redis.set('replays:fetch:latest_version', 1)
+    } else {
+      redis.set('replays:fetch:latest_version', ++latestVersion)
+    }
+
     return response.json(replays)
   }
 
@@ -231,3 +214,57 @@ function buildPaginationLinks(meta: { previousPageUrl: string, lastPage: number;
 
   return links
 }
+
+async function getResults(){
+      let results = await db.rawQuery(`
+      SELECT
+        u.display_name,
+        u.sessions,
+        u.total_time_seconds,
+        u.total_time_readable,
+        u.average_session_time_readable,
+        u.average_time_seconds,
+        r.id AS last_session_id,
+        r.finished_at AS last_session_time
+
+      FROM (
+        -- Aggregate sessions in the last 30 days
+        SELECT
+          "user" ->> 'display_name' AS display_name,
+          COUNT(duration) AS sessions,
+          SUM(duration) AS total_time_seconds,
+          AVG(duration) AS average_time_seconds,
+          CONCAT(
+            FLOOR(SUM(duration) / 86400), 'd ',
+            FLOOR(MOD(SUM(duration), 86400) / 3600), 'h ',
+            FLOOR(MOD(SUM(duration), 3600) / 60), 'm'
+          ) AS total_time_readable,
+          CONCAT(
+            FLOOR(COUNT(duration) / 86400), 'd ',
+            FLOOR(MOD(COUNT(duration), 86400) / 3600), 'h ',
+            FLOOR(MOD(COUNT(duration), 3600) / 60), 'm'
+          ) AS average_session_time_readable
+        FROM
+          replays
+        WHERE
+          finished_at >= NOW() - INTERVAL '30 days'
+        GROUP BY
+          "user" ->> 'display_name'
+      ) u
+
+      -- LATERAL JOIN to get latest session (either within 30d or fallback to latest overall)
+      JOIN LATERAL (
+        SELECT id, finished_at
+        FROM replays
+        WHERE "user" ->> 'display_name' = u.display_name
+        ORDER BY
+          CASE WHEN finished_at >= NOW() - INTERVAL '30 days' THEN 0 ELSE 1 END,
+          finished_at DESC
+        LIMIT 1
+      ) r ON true
+
+      ORDER BY
+        u.total_time_seconds DESC;`
+    )
+    return results
+}