Display the 12 most recent media items and show video thumbnails

Update the media selection to show only the 12 latest uploaded images and videos, and add video playback support within the media selection interface.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ae4037a0-2a6f-4530-9bac-79b543286bda
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Event-Id: 9a9f229a-0a7c-4b48-8f35-8a6a6dff12e3
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/397bca8c-984f-43ff-841a-10897aeb8140/ae4037a0-2a6f-4530-9bac-79b543286bda/YZ4cngz

client/src/pages/new-post.tsx

@@ -1,4 +1,4 @@
-import { useState, useCallback, useRef, useEffect } from "react";
+import { useState, useCallback, useRef, useMemo } from "react";
 import { useQuery, useMutation } from "@tanstack/react-query";
 import { useLocation } from "wouter";
 import { Send, Sparkles, Image as ImageIcon, Calendar, Upload, Camera, GripVertical, Loader2 } from "lucide-react";
@@ -60,6 +60,8 @@ function SortableMediaItem({
     transition,
   };
 
+  const isVideo = media.type === 'video';
+
   return (
     <div
       ref={setNodeRef}
@@ -75,12 +77,22 @@ function SortableMediaItem({
         className="w-full h-full"
         data-testid={`button-select-media-${media.id}`}
       >
-        <img 
-          src={media.facebookFeedUrl || media.originalUrl} 
-          alt={media.fileName}
-          className="w-full h-full object-cover"
-          loading="lazy"
-        />
+        {isVideo ? (
+          <video 
+            src={media.originalUrl} 
+            className="w-full h-full object-cover"
+            muted
+            playsInline
+            preload="metadata"
+          />
+        ) : (
+          <img 
+            src={media.facebookFeedUrl || media.originalUrl} 
+            alt={media.fileName}
+            className="w-full h-full object-cover"
+            loading="lazy"
+          />
+        )}
       </button>
       {isSelected && (
         <>
@@ -114,20 +126,28 @@ export default function NewPost() {
   const [postText, setPostText] = useState('');
   const [postType, setPostType] = useState<'feed' | 'story' | 'both'>('feed');
   const [previewModalOpen, setPreviewModalOpen] = useState(false);
-  const [visibleMediaCount, setVisibleMediaCount] = useState(() => {
-    // Chargement initial adapté à la taille d'écran : 6 sur mobile, 12 sur desktop
-    return window.innerWidth < 768 ? 6 : 12;
-  });
-  const loadMoreMediaRef = useRef<HTMLDivElement>(null);
 
   const { data: pages = [] } = useQuery<SocialPage[]>({
     queryKey: ['/api/pages'],
   });
 
-  const { data: mediaList = [] } = useQuery<Media[]>({
+  const { data: allMedia = [] } = useQuery<Media[]>({
     queryKey: ['/api/media'],
   });
 
+  // Afficher seulement les 12 derniers médias triés par date décroissante
+  // Utilisation de useMemo pour éviter de re-trier à chaque render
+  // Création d'une copie pour ne pas muter le cache React Query
+  const mediaList = useMemo(() => {
+    return [...allMedia]
+      .sort((a, b) => {
+        const dateA = a.createdAt ? new Date(a.createdAt).getTime() : 0;
+        const dateB = b.createdAt ? new Date(b.createdAt).getTime() : 0;
+        return dateB - dateA; // Tri décroissant (plus récent en premier)
+      })
+      .slice(0, 12);
+  }, [allMedia]);
+
   const { data: scheduledPosts = [] } = useQuery<ScheduledPost[]>({
     queryKey: ['/api/scheduled-posts'],
   });
@@ -352,28 +372,6 @@ export default function NewPost() {
     }
   };
 
-  // Scroll infini - IntersectionObserver pour la grille de médias
-  useEffect(() => {
-    const observer = new IntersectionObserver(
-      (entries) => {
-        if (entries[0].isIntersecting && mediaList && visibleMediaCount < mediaList.length) {
-          setVisibleMediaCount(prev => Math.min(prev + 12, mediaList.length));
-        }
-      },
-      { threshold: 0.1 }
-    );
-
-    if (loadMoreMediaRef.current) {
-      observer.observe(loadMoreMediaRef.current);
-    }
-
-    return () => {
-      if (loadMoreMediaRef.current) {
-        observer.unobserve(loadMoreMediaRef.current);
-      }
-    };
-  }, [mediaList, visibleMediaCount]);
-
   return (
     <div className="flex h-screen overflow-hidden bg-background">
       {sidebarOpen && (
@@ -513,12 +511,13 @@ export default function NewPost() {
                           </div>
                         )}
                         <div className="text-sm font-medium text-muted-foreground mb-2">
-                          Toutes les photos
+                          Toutes les photos ({mediaList.length})
                         </div>
                         <div className="max-h-[500px] overflow-y-auto">
                           <div className="grid grid-cols-2 sm:grid-cols-3 gap-2">
-                            {mediaList.slice(0, visibleMediaCount).map((media) => {
+                            {mediaList.map((media) => {
                               const isSelected = selectedMedia.includes(media.id);
+                              const isVideo = media.type === 'video';
                               
                               return (
                                 <button
@@ -545,12 +544,22 @@ export default function NewPost() {
                                   }`}
                                   data-testid={`button-select-media-${media.id}`}
                                 >
-                                  <img 
-                                    src={media.facebookFeedUrl || media.originalUrl} 
-                                    alt={media.fileName}
-                                    className="w-full h-full object-cover"
-                                    loading="lazy"
-                                  />
+                                  {isVideo ? (
+                                    <video 
+                                      src={media.originalUrl} 
+                                      className="w-full h-full object-cover"
+                                      muted
+                                      playsInline
+                                      preload="metadata"
+                                    />
+                                  ) : (
+                                    <img 
+                                      src={media.facebookFeedUrl || media.originalUrl} 
+                                      alt={media.fileName}
+                                      className="w-full h-full object-cover"
+                                      loading="lazy"
+                                    />
+                                  )}
                                   {isSelected && (
                                     <div className="absolute inset-0 bg-primary/10 flex items-center justify-center">
                                       <div className="text-xs font-semibold text-primary">Sélectionnée</div>
@@ -560,13 +569,6 @@ export default function NewPost() {
                               );
                             })}
                           </div>
-                          
-                          {/* Élément sentinelle pour le scroll infini */}
-                          {mediaList && visibleMediaCount < mediaList.length && (
-                            <div ref={loadMoreMediaRef} className="flex justify-center py-4 col-span-3">
-                              <Loader2 className="w-5 h-5 text-primary animate-spin" />
-                            </div>
-                          )}
                         </div>
                       </>
                     )}