update frontend

src/components/Map/mapGeo.js

@@ -19,11 +19,17 @@ export function getViewFromMap(map) {
   const bounds = map.getBounds();
   const center = bounds.getCenter();
   const ne = bounds.getNorthEast();
+
   let radiusKm = haversineKm(center.lat, center.lng, ne.lat, ne.lng);
+
+  // si calcul weird
   if (!Number.isFinite(radiusKm) || radiusKm <= 0) {
-    radiusKm = 250;
+    radiusKm = 750; // ✅ fallback plus large
   }
-  radiusKm = Math.min(Math.max(radiusKm, 10), 1000); // clamp 10–1000 km
+
+  // clamp (si ton backend limite à 1000, mets 1000 ici)
+  radiusKm = Math.min(Math.max(radiusKm, 25), 1500);
+
   return {
     center: [center.lng, center.lat],
     radiusKm,

src/components/Map/useMapCore.js

@@ -4,6 +4,7 @@ import { LAST_VIEW_KEY } from "./mapConfig";
 import { getViewFromMap } from "./mapGeo";
 import { clearAllMarkers, applyOcclusionForExpanded } from "./markerManager";
 
+// renvoie le style MapLibre en fonction du thème
 function getBaseStyle(theme) {
   const t = theme || "dark";
   let tiles;
@@ -31,7 +32,13 @@ function getBaseStyle(theme) {
         attribution: "© OpenStreetMap contributors © CARTO",
       },
     },
-    layers: [{ id: "carto-base-layer", type: "raster", source: "carto-base" }],
+    layers: [
+      {
+        id: "carto-base-layer",
+        type: "raster",
+        source: "carto-base",
+      },
+    ],
   };
 }
 
@@ -42,13 +49,17 @@ export function useMapCore(theme) {
   const markersRef = useRef([]);
   const expandedElRef = useRef(null);
 
-  const [viewParams, setViewParams] = useState({ center: null, radiusKm: 250 });
+  // ✅ default plus large
+  const [viewParams, setViewParams] = useState({
+    center: null,
+    radiusKm: 750,
+  });
   const [hasLastView, setHasLastView] = useState(false);
 
   function closeExpandedIfAny() {
     const el = expandedElRef.current;
-    if (el && el.__renderCompact) {
-      el.__renderCompact();
+    if (el && el.__setExpanded) {
+      el.__setExpanded(false);
     }
     expandedElRef.current = null;
   }
@@ -66,7 +77,7 @@ export function useMapCore(theme) {
       antialias: true,
     });
 
-    // restore last view
+    // Reprise dernière vue
     let hadLastView = false;
     try {
       const raw = localStorage.getItem(LAST_VIEW_KEY);
@@ -88,7 +99,7 @@ export function useMapCore(theme) {
     map.addControl(new maplibregl.NavigationControl(), "top-right");
     mapRef.current = map;
 
-    // re-apply occlusion during move/zoom (only hides below overlapping ones)
+    // If a post is expanded, re-apply occlusion on zoom/move (only hides overlapping ones)
     const reOcclude = () => {
       const el = expandedElRef.current;
       if (el) applyOcclusionForExpanded(markersRef, el);
@@ -96,8 +107,18 @@ export function useMapCore(theme) {
     map.on("move", reOcclude);
     map.on("zoom", reOcclude);
 
+    // Close expanded post when clicking on the map (outside markers)
+    map.on("click", () => {
+      const el = expandedElRef.current;
+      if (el && el.__renderCompact) {
+        el.__renderCompact();
+        expandedElRef.current = null;
+      }
+    });
+
     map.on("load", () => {
-      setViewParams(getViewFromMap(map));
+      const vp = getViewFromMap(map);
+      setViewParams(vp);
     });
 
     map.on("moveend", () => {
@@ -107,12 +128,16 @@ export function useMapCore(theme) {
         const center = vp.center;
         localStorage.setItem(
           LAST_VIEW_KEY,
-          JSON.stringify({ lat: center[1], lon: center[0], zoom: map.getZoom() })
+          JSON.stringify({
+            lat: center[1],
+            lon: center[0],
+            zoom: map.getZoom(),
+          })
         );
       } catch {}
     });
 
-    // ✅ close expanded when clicking/dragging map
+    // IMPORTANT: click/drag sur la map => fermer le gros post
     map.on("click", () => closeExpandedIfAny());
     map.on("dragstart", () => closeExpandedIfAny());
 
@@ -124,7 +149,6 @@ export function useMapCore(theme) {
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
-  // theme switch
   useEffect(() => {
     const map = mapRef.current;
     if (!map) return;
@@ -139,4 +163,4 @@ export function useMapCore(theme) {
     viewParams,
     hasLastView,
   };
-}
+}

src/components/Map/usePostsEngine.js

@@ -70,7 +70,7 @@ export function usePostsEngine({
     rebuildMarkersForFilters(timeFilter);
   }, [timeFilter, mainFilter, subFilter, rebuildMarkersForFilters]);
 
-  // Fetch backend quand la vue bouge assez
+  // Fetch backend quand la vue bouge assez (OU quand le zoom change beaucoup le radius)
   useEffect(() => {
     const map = mapRef.current;
     if (!map) return;
@@ -80,7 +80,7 @@ export function usePostsEngine({
 
     async function load() {
       const [lng, lat] = viewParams.center;
-      const radiusKm = viewParams.radiusKm || 250;
+      const radiusKm = viewParams.radiusKm || 750;
       const filterKey = `${mainFilter}|${subFilter}`;
 
       const last = lastFetchRef.current;
@@ -89,8 +89,16 @@ export function usePostsEngine({
         const [lastLng, lastLat] = last.center;
         const distKm = haversineKm(lastLat, lastLng, viewParams.center[1], lng);
 
-        const minMoveKm = Math.max(100, radiusKm * 0.4);
-        if (distKm < minMoveKm) {
+        // ✅ refetch si le radius change pas mal (zoom in/out)
+        const lastR = last.radiusKm || 0;
+        const radiusChanged =
+          !lastR || Math.abs(radiusKm - lastR) / Math.max(lastR, 1) >= 0.25; // 25%
+
+        // move threshold moins agressif
+        const minMoveKm = Math.max(50, radiusKm * 0.25);
+
+        // Si ni zoom ni move significatif => skip
+        if (!radiusChanged && distKm < minMoveKm) {
           return;
         }
       }
@@ -160,7 +168,14 @@ export function usePostsEngine({
     return () => {
       cancelled = true;
     };
-  }, [viewParams, mainFilter, subFilter, mapRef, rebuildMarkersForFilters, timeFilter]);
+  }, [
+    viewParams,
+    mainFilter,
+    subFilter,
+    mapRef,
+    rebuildMarkersForFilters,
+    timeFilter,
+  ]);
 
   // Nouveau post reçu via WebSocket
   const handleIncomingPost = useCallback(