Deduplicate media across scrapes and polish the viewer controls

media-scrape/src/engine.ts

@@ -59,8 +59,10 @@ export interface ScrapeEngineOptions {
     download?: DownloadOptions;
     /** Cache Discord-hosted image previews after every walk. Default true. */
     previews?: boolean;
-    /** Read dimensions from a downloaded file. Defaults to ffprobe. */
-    probe?: (path: string) => Promise<{ width: number; height: number } | null>;
+    /** Read dimensions and duration from a downloaded file. Defaults to ffprobe. */
+    probe?: (
+        path: string
+    ) => Promise<{ width: number | null; height: number | null; durationSecs: number | null } | null>;
     /** Called when a scrape fails. */
     onError?: (scrapeId: string, message: string) => void;
 }
@@ -320,11 +322,11 @@ export class ScrapeEngine {
                 });
                 meta.downloaded = (meta.downloaded ?? 0) + 1;
 
-                if (row.width === null || row.height === null) {
-                    const dimensions = await (this.options.probe ?? probeDimensions)(
+                if (row.width === null || row.height === null || row.duration_secs === null) {
+                    const info = await (this.options.probe ?? probeDimensions)(
                         join(targetDir, outcome.path)
                     );
-                    if (dimensions) store.updateDimensions(row.id, dimensions.width, dimensions.height);
+                    if (info) store.updateMediaInfo(row.id, info);
                 }
 
                 if (row.kind === "video" && !row.preview_hash) {