From 2eb182fccc4718620440e80cc3b2f11104925d06 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Fri, 26 Dec 2025 01:48:59 -0500
Subject: [PATCH] Restrict map to bounds-only posts

---
 src/components/Map/usePostsEngine.js | 26 +++-----------------------
 1 file changed, 3 insertions(+), 23 deletions(-)

diff --git a/src/components/Map/usePostsEngine.js b/src/components/Map/usePostsEngine.js
index 0943321..582b0a7 100644
--- a/src/components/Map/usePostsEngine.js
+++ b/src/components/Map/usePostsEngine.js
@@ -90,8 +90,8 @@ function filterByBounds(posts, map) {
   const ne = bounds.getNorthEast();
   if (!sw || !ne) return posts;
 
-  const padLat = Math.abs(ne.lat - sw.lat) * 0.35;
-  const padLon = Math.abs(ne.lng - sw.lng) * 0.35;
+  const padLat = Math.abs(ne.lat - sw.lat) * 0.15;
+  const padLon = Math.abs(ne.lng - sw.lng) * 0.15;
   const minLat = sw.lat - padLat;
   const maxLat = ne.lat + padLat;
   const minLon = sw.lng - padLon;
@@ -105,19 +105,6 @@ function filterByBounds(posts, map) {
   });
 }
 
-function filterByRadius(posts, center, radiusKm) {
-  if (!Array.isArray(posts) || posts.length === 0) return posts || [];
-  const [centerLon, centerLat] = center || [];
-  if (!Number.isFinite(centerLat) || !Number.isFinite(centerLon)) return posts || [];
-  const limit = Math.max(radiusKm || 0, 1);
-  return posts.filter((p) => {
-    const coords = getCoords(p);
-    if (!coords) return false;
-    const [lon, lat] = coords;
-    const dKm = haversineKm(centerLat, centerLon, lat, lon);
-    return dKm <= limit;
-  });
-}
 
 function getPostTimeMs(p) {
   const raw = p?.created_at || p?.CreatedAt || p?.createdAt || p?.published_at;
@@ -533,14 +520,7 @@ export function usePostsEngine({
     (tf) => {
       const vAll = computeVisible(tf);
       const map = mapRef.current;
-      let vBounded = filterByBounds(vAll, map);
-      if (vBounded.length === 0 && viewParams?.center && viewParams?.radiusKm) {
-        vBounded = filterByRadius(vAll, viewParams.center, viewParams.radiusKm * 1.2);
-      }
-      if (vBounded.length === 0) {
-        vBounded = vAll;
-      }
-      let v = vBounded;
+      let v = filterByBounds(vAll, map);
       if (v.length > MAX_VISIBLE_POSTS) {
         const center = map?.getCenter?.();
         v = prunePosts(v, [center?.lng, center?.lat], MAX_VISIBLE_POSTS);