From ef05f10b44c2b4363fd2ff8ec34e7575964d07f7 Mon Sep 17 00:00:00 2001
From: Nicolas Mowen <nickmowen213@gmail.com>
Date: Sat, 23 Mar 2024 12:29:05 -0600
Subject: [PATCH] Increase efficiency

---
 web/src/hooks/use-camera-activity.ts | 33 +++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 8 deletions(-)

diff --git a/web/src/hooks/use-camera-activity.ts b/web/src/hooks/use-camera-activity.ts
index 957de43c3..01406d29a 100644
--- a/web/src/hooks/use-camera-activity.ts
+++ b/web/src/hooks/use-camera-activity.ts
@@ -77,22 +77,39 @@ export function useCameraMotionTimestamps(
 ) {
   const timestamps = useMemo(() => {
     const seekableTimestamps = [];
+    let lastEventIdx = 0;
+    let lastMotionIdx = 0;
+
     for (let i = timeRange.after; i <= timeRange.before; i += 0.5) {
       if (!motionOnly) {
         seekableTimestamps.push(i);
       } else {
-        if (
-          events.find((seg) => seg.start_time <= i && seg.end_time >= i) !=
-          undefined
-        ) {
+        const relevantEventIdx = events.findIndex((seg, segIdx) => {
+          if (segIdx < lastEventIdx) {
+            return false;
+          }
+
+          return seg.start_time <= i && seg.end_time >= i;
+        });
+
+        if (relevantEventIdx != -1) {
+          lastEventIdx = relevantEventIdx;
           continue;
         }
 
-        const relevantMotion = motion.find(
-          (mot) => mot.start_time <= i && mot.start_time + 15 >= i,
-        );
+        const relevantMotionIdx = motion.findIndex((mot, motIdx) => {
+          if (motIdx < lastMotionIdx) {
+            return false;
+          }
+
+          return mot.start_time <= i && mot.start_time + 15 >= i;
+        });
+
+        if (relevantMotionIdx == -1 || motion[relevantMotionIdx].motion == 0) {
+          if (relevantMotionIdx != -1) {
+            lastMotionIdx = relevantMotionIdx;
+          }
 
-        if (!relevantMotion || relevantMotion.motion == 0) {
           continue;
         }