feat(web): enable websocket (#3765)

* send store event to page

* fix format

* add new asset to existing bucket

* format

* debouncing

* format

* load bucket

* feedback

* feat: listen to deletes and auto-subscribe on all asset grid pages

* feat: auto refresh on person thumbnail

* chore: skip upload event for now

* fix: person thumbnail event

* fix merge

* update handleAssetDeletion with websocket communication

* update info box on mount

* fix test

* fix test

* feat: event for trash asset

---------

Co-authored-by: Jason Rasmussen <jrasm91@gmail.com>

web/src/lib/stores/assets.store.ts

@@ -1,6 +1,9 @@
 import { api, AssetApiGetTimeBucketsRequest, AssetResponseDto } from '@api';
-import { writable } from 'svelte/store';
+import { throttle } from 'lodash-es';
+import { DateTime } from 'luxon';
+import { Unsubscriber, writable } from 'svelte/store';
 import { handleError } from '../utils/handle-error';
+import { websocketStore } from './websocket';
 
 export enum BucketPosition {
   Above = 'above',
@@ -34,11 +37,33 @@ export class AssetBucket {
   position!: BucketPosition;
 }
 
+const isMismatched = (option: boolean | undefined, value: boolean): boolean =>
+  option === undefined ? false : option !== value;
+
 const THUMBNAIL_HEIGHT = 235;
 
+interface AddAsset {
+  type: 'add';
+  value: AssetResponseDto;
+}
+
+interface DeleteAsset {
+  type: 'delete';
+  value: string;
+}
+
+interface TrashAsset {
+  type: 'trash';
+  value: string;
+}
+
+type PendingChange = AddAsset | DeleteAsset | TrashAsset;
+
 export class AssetStore {
   private store$ = writable(this);
   private assetToBucket: Record<string, AssetLookup> = {};
+  private pendingChanges: PendingChange[] = [];
+  private unsubscribers: Unsubscriber[] = [];
 
   initialized = false;
   timelineHeight = 0;
@@ -52,6 +77,63 @@ export class AssetStore {
 
   subscribe = this.store$.subscribe;
 
+  connect() {
+    this.unsubscribers.push(
+      websocketStore.onUploadSuccess.subscribe((value) => {
+        if (value) {
+          this.pendingChanges.push({ type: 'add', value });
+          this.processPendingChanges();
+        }
+      }),
+
+      websocketStore.onAssetTrash.subscribe((ids) => {
+        console.log('onAssetTrash', ids);
+        if (ids) {
+          for (const id of ids) {
+            this.pendingChanges.push({ type: 'trash', value: id });
+          }
+          this.processPendingChanges();
+        }
+      }),
+
+      websocketStore.onAssetDelete.subscribe((value) => {
+        if (value) {
+          this.pendingChanges.push({ type: 'delete', value });
+          this.processPendingChanges();
+        }
+      }),
+    );
+  }
+
+  disconnect() {
+    for (const unsubscribe of this.unsubscribers) {
+      unsubscribe();
+    }
+  }
+
+  processPendingChanges = throttle(() => {
+    for (const { type, value } of this.pendingChanges) {
+      switch (type) {
+        case 'add':
+          this.addAsset(value);
+          break;
+
+        case 'trash':
+          if (!this.options.isTrashed) {
+            this.removeAsset(value);
+          }
+          break;
+
+        case 'delete':
+          this.removeAsset(value);
+          break;
+      }
+    }
+
+    this.pendingChanges = [];
+    this.emit(true);
+  }, 10_000);
+
   async init(viewport: Viewport) {
     this.initialized = false;
     this.timelineHeight = 0;
@@ -168,6 +250,46 @@ export class AssetStore {
     return scrollTimeline ? delta : 0;
   }
 
+  private addAsset(asset: AssetResponseDto): void {
+    if (
+      this.assetToBucket[asset.id] ||
+      this.options.userId ||
+      this.options.personId ||
+      this.options.albumId ||
+      isMismatched(this.options.isArchived, asset.isArchived) ||
+      isMismatched(this.options.isFavorite, asset.isFavorite)
+    ) {
+      return;
+    }
+
+    const timeBucket = DateTime.fromISO(asset.fileCreatedAt).toUTC().startOf('month').toString();
+    let bucket = this.getBucketByDate(timeBucket);
+
+    if (!bucket) {
+      bucket = {
+        bucketDate: timeBucket,
+        bucketHeight: THUMBNAIL_HEIGHT,
+        assets: [],
+        cancelToken: null,
+        position: BucketPosition.Unknown,
+      };
+
+      this.buckets.push(bucket);
+      this.buckets = this.buckets.sort((a, b) => {
+        const aDate = DateTime.fromISO(a.bucketDate).toUTC();
+        const bDate = DateTime.fromISO(b.bucketDate).toUTC();
+        return bDate.diff(aDate).milliseconds;
+      });
+    }
+
+    bucket.assets.push(asset);
+    bucket.assets.sort((a, b) => {
+      const aDate = DateTime.fromISO(a.fileCreatedAt).toUTC();
+      const bDate = DateTime.fromISO(b.fileCreatedAt).toUTC();
+      return bDate.diff(aDate).milliseconds;
+    });
+  }
+
   getBucketByDate(bucketDate: string): AssetBucket | null {
     return this.buckets.find((bucket) => bucket.bucketDate === bucketDate) || null;
   }