Merge a2b92caab0 into d036061e3f

frigate/api/preview.py

@@ -1,7 +1,9 @@
 """Preview apis."""
 
+import bisect
 import logging
 import os
+import threading
 from datetime import datetime, timedelta, timezone
 
 import pytz
@@ -133,6 +135,32 @@ def preview_hour(
     return preview_ts(camera_name, start_ts, end_ts, allowed_cameras)
 
 
+# cache one sorted listing of the shared preview_frames dir
+_preview_listing_lock = threading.Lock()
+_preview_listing_cache: tuple[float, list[str]] = (-1.0, [])
+
+
+def _get_preview_frame_listing(preview_dir: str) -> list[str]:
+    """Return the sorted preview_frames listing, cached until the dir changes."""
+    global _preview_listing_cache
+
+    # mtime bumps when a frame is added or removed, invalidating the cache
+    mtime = os.stat(preview_dir).st_mtime
+    cached_mtime, files = _preview_listing_cache
+    if mtime == cached_mtime:
+        return files
+
+    with _preview_listing_lock:
+        # another thread may have refreshed the cache while we waited
+        cached_mtime, files = _preview_listing_cache
+        if mtime == cached_mtime:
+            return files
+
+        files = sorted(entry.name for entry in os.scandir(preview_dir))
+        _preview_listing_cache = (mtime, files)
+        return files
+
+
 @router.get(
     "/preview/{camera_name}/start/{start_ts}/end/{end_ts}/frames",
     response_model=PreviewFramesResponse,
@@ -149,23 +177,15 @@ def get_preview_frames_from_cache(camera_name: str, start_ts: float, end_ts: flo
     start_file = f"{file_start}{start_ts}.{PREVIEW_FRAME_TYPE}"
     end_file = f"{file_start}{end_ts}.{PREVIEW_FRAME_TYPE}"
 
-    camera_files = [
-        entry.name
-        for entry in os.scandir(preview_dir)
-        if entry.name.startswith(file_start)
+    files = _get_preview_frame_listing(preview_dir)
+
+    # a camera's frames form a contiguous slice of the sorted listing;
+    # bisect locates it without scanning the whole directory
+    left = bisect.bisect_left(files, start_file)
+    right = bisect.bisect_right(files, end_file)
+    selected_previews = [
+        file for file in files[left:right] if file.startswith(file_start)
     ]
-    camera_files.sort()
-
-    selected_previews = []
-
-    for file in camera_files:
-        if file < start_file:
-            continue
-
-        if file > end_file:
-            break
-
-        selected_previews.append(file)
 
     return JSONResponse(
         content=selected_previews,

web/public/locales/en/components/dialog.json

@@ -70,6 +70,13 @@
       "selectFromTimeline": "Select from Timeline",
       "cameraSelection": "Cameras",
       "cameraSelectionHelp": "Cameras with tracked objects in this time range are pre-selected",
+      "searchOrSelectGroup": "Search, or select a camera group...",
+      "selectAll": "Select all cameras",
+      "clearSelection": "Clear selection",
+      "selectWithActivity": "Cameras with tracked objects",
+      "selectGroup": "Select group",
+      "noMatchingCameras": "No cameras match your search",
+      "selectedCount": "{{selected}} / {{total}} selected",
       "checkingActivity": "Checking camera activity...",
       "noCameras": "No cameras available",
       "detectionCount_one": "1 tracked object",

web/src/components/overlay/ExportDialog.tsx

@@ -39,6 +39,16 @@ import {
   TooltipContent,
   TooltipTrigger,
 } from "@/components/ui/tooltip";
+import {
+  Command,
+  CommandGroup,
+  CommandInput,
+  CommandItem,
+  CommandList,
+  CommandSeparator,
+} from "../ui/command";
+import { IconRenderer } from "../icons/IconPicker";
+import * as LuIcons from "react-icons/lu";
 import { isDesktop, isMobile } from "react-device-detect";
 import { Drawer, DrawerContent, DrawerTrigger } from "../ui/drawer";
 import SaveExportOverlay from "./SaveExportOverlay";
@@ -376,6 +386,9 @@ export function ExportContent({
   const [newCaseName, setNewCaseName] = useState("");
   const [newCaseDescription, setNewCaseDescription] = useState("");
   const [isStartingBatchExport, setIsStartingBatchExport] = useState(false);
+  const [cameraSearch, setCameraSearch] = useState("");
+  const [cameraMenuOpen, setCameraMenuOpen] = useState(false);
+  const cameraMenuRef = useRef<HTMLDivElement>(null);
   const multiRangeKey = useMemo(() => {
     if (activeTab !== "multi" || !range) {
       return undefined;
@@ -577,6 +590,75 @@ export function ExportContent({
     );
   }, []);
 
+  const availableCameraIds = useMemo(
+    () => cameraActivities.map((activity) => activity.camera),
+    [cameraActivities],
+  );
+
+  const activeCameraIds = useMemo(
+    () =>
+      cameraActivities
+        .filter((activity) => activity.hasDetections)
+        .map((activity) => activity.camera),
+    [cameraActivities],
+  );
+
+  const cameraGroups = useMemo(
+    () =>
+      Object.entries(config?.camera_groups ?? {})
+        .map(([name, group]) => ({
+          name,
+          icon: group.icon,
+          order: group.order,
+          cameras: group.cameras.filter((cameraId) =>
+            availableCameraIds.includes(cameraId),
+          ),
+        }))
+        .filter((group) => group.cameras.length > 0)
+        .sort((a, b) => a.order - b.order),
+    [config?.camera_groups, availableCameraIds],
+  );
+
+  // Filter the rendered camera cards by the search query
+  const filteredCameraActivities = useMemo(() => {
+    const query = cameraSearch.trim().toLowerCase();
+    if (!query) {
+      return cameraActivities;
+    }
+    return cameraActivities.filter((activity) => {
+      const friendlyName = resolveCameraName(config, activity.camera);
+      return (
+        activity.camera.toLowerCase().includes(query) ||
+        friendlyName.toLowerCase().includes(query)
+      );
+    });
+  }, [cameraActivities, cameraSearch, config]);
+
+  // Group/all/activity selection replaces the current selection
+  const applyCameraSelection = useCallback((cameraIds: string[]) => {
+    setHasManualCameraSelection(true);
+    setSelectedCameraIds(cameraIds);
+    setCameraMenuOpen(false);
+  }, []);
+
+  // Close the dropdown when focus leaves the camera selection control entirely
+  const handleCameraInputBlur = useCallback((event: React.FocusEvent) => {
+    if (
+      cameraMenuRef.current &&
+      !cameraMenuRef.current.contains(event.relatedTarget as Node)
+    ) {
+      setCameraMenuOpen(false);
+    }
+  }, []);
+
+  // Reset the search and dropdown when leaving the multi-camera tab
+  useEffect(() => {
+    if (activeTab !== "multi") {
+      setCameraSearch("");
+      setCameraMenuOpen(false);
+    }
+  }, [activeTab]);
+
   const startBatchExport = useCallback(async () => {
     if (isStartingBatchExport) {
       return;
@@ -802,7 +884,7 @@ export function ExportContent({
 
           {isAdmin && (
             <div className="space-y-2">
-              <Label className="text-sm text-secondary-foreground">
+              <Label className="text-sm text-primary">
                 {t("export.case.label")}
               </Label>
               <Select
@@ -859,7 +941,7 @@ export function ExportContent({
           )}
         >
           <div className="space-y-2">
-            <Label className="text-sm text-secondary-foreground">
+            <Label className="text-sm text-primary">
               {t("export.multiCamera.timeRange")}
             </Label>
             <div className="flex items-center gap-2">
@@ -902,16 +984,109 @@ export function ExportContent({
           </div>
 
           <div className="space-y-2">
-            <Label className="text-sm text-secondary-foreground">
-              {t("export.multiCamera.cameraSelection")}
-            </Label>
+            <div className="flex items-center justify-between gap-2">
+              <Label className="text-sm text-primary">
+                {t("export.multiCamera.cameraSelection")}
+              </Label>
+              {availableCameraIds.length > 0 && (
+                <span className="text-xs text-muted-foreground">
+                  {t("export.multiCamera.selectedCount", {
+                    selected: selectedCameraCount,
+                    total: availableCameraIds.length,
+                  })}
+                </span>
+              )}
+            </div>
             <div className="text-xs text-muted-foreground">
               {t("export.multiCamera.cameraSelectionHelp")}
             </div>
+            {!isEventsLoading && availableCameraIds.length > 0 && (
+              <div className="relative" ref={cameraMenuRef}>
+                <Command
+                  shouldFilter={false}
+                  className="overflow-visible rounded-md border bg-secondary/40"
+                >
+                  <CommandInput
+                    value={cameraSearch}
+                    onValueChange={setCameraSearch}
+                    onFocus={() => setCameraMenuOpen(true)}
+                    onBlur={handleCameraInputBlur}
+                    placeholder={t("export.multiCamera.searchOrSelectGroup")}
+                  />
+                  {/* Hide the actions/groups menu while a search query is
+                      active so it doesn't cover the filtered camera cards. */}
+                  {cameraMenuOpen && cameraSearch.trim().length === 0 && (
+                    <CommandList className="absolute top-full z-10 mt-1 max-h-72 w-full rounded-md border bg-background shadow-md">
+                      <CommandGroup>
+                        <CommandItem
+                          value="action:select-all"
+                          className="cursor-pointer"
+                          onSelect={() =>
+                            applyCameraSelection(availableCameraIds)
+                          }
+                        >
+                          <span>{t("export.multiCamera.selectAll")}</span>
+                          <span className="ml-auto text-xs text-muted-foreground">
+                            {availableCameraIds.length}
+                          </span>
+                        </CommandItem>
+                        <CommandItem
+                          value="action:clear"
+                          className="cursor-pointer"
+                          onSelect={() => applyCameraSelection([])}
+                        >
+                          {t("export.multiCamera.clearSelection")}
+                        </CommandItem>
+                        <CommandItem
+                          value="action:activity"
+                          className="cursor-pointer"
+                          onSelect={() => applyCameraSelection(activeCameraIds)}
+                        >
+                          <span>
+                            {t("export.multiCamera.selectWithActivity")}
+                          </span>
+                          <span className="ml-auto text-xs text-muted-foreground">
+                            {activeCameraIds.length}
+                          </span>
+                        </CommandItem>
+                      </CommandGroup>
+                      {cameraGroups.length > 0 && (
+                        <>
+                          <CommandSeparator />
+                          <CommandGroup
+                            heading={t("export.multiCamera.selectGroup")}
+                          >
+                            {cameraGroups.map((group) => (
+                              <CommandItem
+                                key={group.name}
+                                value={`group:${group.name}`}
+                                className="cursor-pointer"
+                                onSelect={() =>
+                                  applyCameraSelection(group.cameras)
+                                }
+                              >
+                                <IconRenderer
+                                  icon={LuIcons[group.icon]}
+                                  className="mr-2 size-4 text-secondary-foreground"
+                                />
+                                <span className="truncate">{group.name}</span>
+                                <span className="ml-auto text-xs text-muted-foreground">
+                                  {group.cameras.length}
+                                </span>
+                              </CommandItem>
+                            ))}
+                          </CommandGroup>
+                        </>
+                      )}
+                    </CommandList>
+                  )}
+                </Command>
+              </div>
+            )}
             <div
               className={cn(
                 "scrollbar-container space-y-2",
-                isDesktop && "max-h-64 overflow-y-auto pr-1",
+                isDesktop && "max-h-64 overflow-y-auto p-0.5 pr-1",
               )}
             >
               {isEventsLoading && (
@@ -924,7 +1099,14 @@ export function ExportContent({
                   {t("export.multiCamera.noCameras")}
                 </div>
               )}
-              {cameraActivities.map((activity) => {
+              {!isEventsLoading &&
+                cameraActivities.length > 0 &&
+                filteredCameraActivities.length === 0 && (
+                  <div className="px-2 py-4 text-sm text-muted-foreground">
+                    {t("export.multiCamera.noMatchingCameras")}
+                  </div>
+                )}
+              {filteredCameraActivities.map((activity) => {
                 const isSelected = selectedCameraIds.includes(activity.camera);
 
                 return (
@@ -981,7 +1163,7 @@ export function ExportContent({
           </div>
 
           <div className="space-y-2">
-            <Label className="text-sm text-secondary-foreground">
+            <Label className="text-sm text-primary">
               {t("export.multiCamera.nameLabel")}
             </Label>
             <Input
@@ -994,7 +1176,7 @@ export function ExportContent({
 
           {isAdmin && (
             <div className="space-y-2">
-              <Label className="text-sm text-secondary-foreground">
+              <Label className="text-sm text-primary">
                 {t("export.case.label")}
               </Label>
               <Select