snapshot: debounce pics for 2 seconds

common/src/promise-utils.ts

@@ -78,11 +78,17 @@ export function createPromiseDebouncer<T>() {
 export function createMapPromiseDebouncer<T>() {
     const map = new Map<string, Promise<T>>();
 
-    return (key: any, func: () => Promise<T>): Promise<T> => {
+    return (key: any, debounce: number, func: () => Promise<T>): Promise<T> => {
         const keyStr = JSON.stringify(key);
         let value = map.get(keyStr);
         if (!value) {
-            value = func().finally(() => map.delete(keyStr));
+            value = func().finally(() => {
+                if (!debounce) {
+                    map.delete(keyStr);
+                    return;
+                }
+                setTimeout(() => map.delete(keyStr), debounce);
+            });
             map.set(keyStr, value);
         }
         return value;

plugins/snapshot/package-lock.json

@@ -1,12 +1,12 @@
 {
    "name": "@scrypted/snapshot",
-   "version": "0.2.21",
+   "version": "0.2.22",
    "lockfileVersion": 2,
    "requires": true,
    "packages": {
       "": {
          "name": "@scrypted/snapshot",
-         "version": "0.2.21",
+         "version": "0.2.22",
          "dependencies": {
             "@koush/axios-digest-auth": "^0.8.5",
             "@types/node": "^18.16.18",

plugins/snapshot/package.json

@@ -1,6 +1,6 @@
 {
    "name": "@scrypted/snapshot",
-   "version": "0.2.21",
+   "version": "0.2.22",
    "description": "Snapshot Plugin for Scrypted",
    "scripts": {
       "scrypted-setup-project": "scrypted-setup-project",

plugins/snapshot/src/main.ts

@@ -275,7 +275,7 @@ class SnapshotMixin extends SettingsMixinDeviceBase<Camera> implements Camera {
             picture = await this.snapshotDebouncer({
                 id: options?.id,
                 reason: options?.reason,
-            }, async () => {
+            }, eventSnapshot ? 0 : 2000, async () => {
                 let picture = await this.takePictureInternal();
                 picture = await this.cropAndScale(picture);
                 this.clearCachedPictures();
@@ -306,7 +306,7 @@ class SnapshotMixin extends SettingsMixinDeviceBase<Camera> implements Camera {
                 picture = await this.snapshotDebouncer({
                     needSoftwareResize: true,
                     picture: options.picture,
-                }, async () => {
+                }, eventSnapshot ? 0 : 2000, async () => {
                     this.debugConsole?.log("Resizing picture from camera", options?.picture);
 
                     if (loadSharp()) {