chore(web): add asset store unit tests

web/src/lib/__mocks__/sdk.mock.ts

@@ -0,0 +1,18 @@
+import sdk from '@immich/sdk';
+import type { Mock, MockedObject } from 'vitest';
+
+vi.mock('@immich/sdk', async (originalImport) => {
+  const module = await originalImport<typeof import('@immich/sdk')>();
+
+  const mocks: Record<string, Mock> = {};
+  for (const [key, value] of Object.entries(module)) {
+    if (typeof value === 'function') {
+      mocks[key] = vi.fn();
+    }
+  }
+
+  const mock = { ...module, ...mocks };
+  return { ...mock, default: mock };
+});
+
+export const sdkMock = sdk as MockedObject<typeof sdk>;

web/src/lib/components/album-page/__tests__/album-card.spec.ts

@@ -1,18 +1,11 @@
 import { createObjectURLMock } from '$lib/__mocks__/jsdom-url.mock';
-import sdk, { ThumbnailFormat } from '@immich/sdk';
+import { sdkMock } from '$lib/__mocks__/sdk.mock';
+import { ThumbnailFormat } from '@immich/sdk';
 import { albumFactory } from '@test-data';
 import '@testing-library/jest-dom';
 import { fireEvent, render, waitFor, type RenderResult } from '@testing-library/svelte';
-import type { MockedObject } from 'vitest';
 import AlbumCard from '../album-card.svelte';
 
-vi.mock('@immich/sdk', async (originalImport) => {
-  const module = await originalImport<typeof import('@immich/sdk')>();
-  const mock = { ...module, getAssetThumbnail: vi.fn() };
-  return { ...mock, default: mock };
-});
-
-const sdkMock: MockedObject<typeof sdk> = sdk as MockedObject<typeof sdk>;
 const onShowContextMenu = vi.fn();
 
 describe('AlbumCard component', () => {

web/src/lib/stores/asset.store.spec.ts

@@ -0,0 +1,357 @@
+import { sdkMock } from '$lib/__mocks__/sdk.mock';
+import { TimeBucketSize, type AssetResponseDto } from '@immich/sdk';
+import { assetFactory } from '@test-data/factories/asset-factory';
+import { AssetStore, BucketPosition } from './assets.store';
+
+describe('AssetStore', () => {
+  beforeEach(() => {
+    vi.resetAllMocks();
+  });
+
+  describe('init', () => {
+    let assetStore: AssetStore;
+    const bucketAssets: Record<string, AssetResponseDto[]> = {
+      '2024-03-01T00:00:00.000Z': assetFactory.buildList(1),
+      '2024-02-01T00:00:00.000Z': assetFactory.buildList(100),
+      '2024-01-01T00:00:00.000Z': assetFactory.buildList(3),
+    };
+
+    beforeEach(async () => {
+      assetStore = new AssetStore({});
+      sdkMock.getTimeBuckets.mockResolvedValue([
+        { count: 1, timeBucket: '2024-03-01T00:00:00.000Z' },
+        { count: 100, timeBucket: '2024-02-01T00:00:00.000Z' },
+        { count: 3, timeBucket: '2024-01-01T00:00:00.000Z' },
+      ]);
+      sdkMock.getTimeBucket.mockImplementation(({ timeBucket }) => Promise.resolve(bucketAssets[timeBucket]));
+
+      await assetStore.init({ width: 1588, height: 1000 });
+    });
+
+    it('should load buckets in viewport', () => {
+      expect(sdkMock.getTimeBuckets).toBeCalledTimes(1);
+      expect(sdkMock.getTimeBuckets).toBeCalledWith({ size: TimeBucketSize.Month });
+      expect(sdkMock.getTimeBucket).toHaveBeenCalledTimes(2);
+    });
+
+    it('calculates bucket height', () => {
+      expect(assetStore.buckets).toEqual(
+        expect.arrayContaining([
+          expect.objectContaining({ bucketDate: '2024-03-01T00:00:00.000Z', bucketHeight: 235 }),
+          expect.objectContaining({ bucketDate: '2024-02-01T00:00:00.000Z', bucketHeight: 3760 }),
+          expect.objectContaining({ bucketDate: '2024-01-01T00:00:00.000Z', bucketHeight: 235 }),
+        ]),
+      );
+    });
+
+    it('calculates timeline height', () => {
+      expect(assetStore.timelineHeight).toBe(4230);
+    });
+  });
+
+  describe('loadBucket', () => {
+    let assetStore: AssetStore;
+    const bucketAssets: Record<string, AssetResponseDto[]> = {
+      '2024-01-03T00:00:00.000Z': assetFactory.buildList(1),
+      '2024-01-01T00:00:00.000Z': assetFactory.buildList(3),
+    };
+
+    beforeEach(async () => {
+      assetStore = new AssetStore({});
+      sdkMock.getTimeBuckets.mockResolvedValue([
+        { count: 1, timeBucket: '2024-01-03T00:00:00.000Z' },
+        { count: 3, timeBucket: '2024-01-01T00:00:00.000Z' },
+      ]);
+      sdkMock.getTimeBucket.mockImplementation(({ timeBucket }) => Promise.resolve(bucketAssets[timeBucket]));
+      await assetStore.init({ width: 0, height: 0 });
+    });
+
+    it('loads a bucket', async () => {
+      expect(assetStore.getBucketByDate('2024-01-01T00:00:00.000Z')?.assets.length).toEqual(0);
+      await assetStore.loadBucket('2024-01-01T00:00:00.000Z', BucketPosition.Visible);
+      expect(sdkMock.getTimeBucket).toBeCalledTimes(1);
+      expect(assetStore.getBucketByDate('2024-01-01T00:00:00.000Z')?.assets.length).toEqual(3);
+    });
+
+    it('ignores invalid buckets', async () => {
+      await assetStore.loadBucket('2023-01-01T00:00:00.000Z', BucketPosition.Visible);
+      expect(sdkMock.getTimeBucket).toBeCalledTimes(0);
+    });
+
+    it('only updates the position of loaded buckets', async () => {
+      await assetStore.loadBucket('2024-01-01T00:00:00.000Z', BucketPosition.Unknown);
+      expect(assetStore.getBucketByDate('2024-01-01T00:00:00.000Z')?.position).toEqual(BucketPosition.Unknown);
+
+      await assetStore.loadBucket('2024-01-01T00:00:00.000Z', BucketPosition.Visible);
+      expect(assetStore.getBucketByDate('2024-01-01T00:00:00.000Z')?.position).toEqual(BucketPosition.Visible);
+    });
+
+    it('cancels bucket loading', async () => {
+      const abortSpy = vi.spyOn(AbortController.prototype, 'abort');
+      const loadPromise = assetStore.loadBucket('2024-01-01T00:00:00.000Z', BucketPosition.Unknown);
+
+      const bucket = assetStore.getBucketByDate('2024-01-01T00:00:00.000Z');
+      expect(bucket).not.toBeNull();
+
+      assetStore.cancelBucket(bucket!);
+      expect(abortSpy).toBeCalledTimes(1);
+      await loadPromise;
+      expect(assetStore.getBucketByDate('2024-01-01T00:00:00.000Z')?.assets.length).toEqual(0);
+    });
+  });
+
+  describe('addAssets', () => {
+    let assetStore: AssetStore;
+
+    beforeEach(async () => {
+      assetStore = new AssetStore({});
+      sdkMock.getTimeBuckets.mockResolvedValue([]);
+      await assetStore.init({ width: 1588, height: 1000 });
+    });
+
+    it('is empty initially', () => {
+      expect(assetStore.buckets.length).toEqual(0);
+      expect(assetStore.assets.length).toEqual(0);
+    });
+
+    it('adds assets to new bucket', () => {
+      const asset = assetFactory.build({ fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      assetStore.addAssets([asset]);
+
+      expect(assetStore.buckets.length).toEqual(1);
+      expect(assetStore.assets.length).toEqual(1);
+      expect(assetStore.buckets[0].assets.length).toEqual(1);
+      expect(assetStore.buckets[0].bucketDate).toEqual('2024-01-01T00:00:00.000Z');
+      expect(assetStore.assets[0].id).toEqual(asset.id);
+    });
+
+    it('adds assets to existing bucket', () => {
+      const [assetOne, assetTwo] = assetFactory.buildList(2, { fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      assetStore.addAssets([assetOne]);
+      assetStore.addAssets([assetTwo]);
+
+      expect(assetStore.buckets.length).toEqual(1);
+      expect(assetStore.assets.length).toEqual(2);
+      expect(assetStore.buckets[0].assets.length).toEqual(2);
+      expect(assetStore.buckets[0].bucketDate).toEqual('2024-01-01T00:00:00.000Z');
+    });
+
+    it('orders assets in buckets by descending date', () => {
+      const assetOne = assetFactory.build({ fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      const assetTwo = assetFactory.build({ fileCreatedAt: '2024-01-15T12:00:00.000Z' });
+      const assetThree = assetFactory.build({ fileCreatedAt: '2024-01-16T12:00:00.000Z' });
+      assetStore.addAssets([assetOne, assetTwo, assetThree]);
+
+      const bucket = assetStore.getBucketByDate('2024-01-01T00:00:00.000Z');
+      expect(bucket).not.toBeNull();
+      expect(bucket?.assets.length).toEqual(3);
+      expect(bucket?.assets[0].id).toEqual(assetOne.id);
+      expect(bucket?.assets[1].id).toEqual(assetThree.id);
+      expect(bucket?.assets[2].id).toEqual(assetTwo.id);
+    });
+
+    it('orders buckets by descending date', () => {
+      const assetOne = assetFactory.build({ fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      const assetTwo = assetFactory.build({ fileCreatedAt: '2024-04-20T12:00:00.000Z' });
+      const assetThree = assetFactory.build({ fileCreatedAt: '2023-01-20T12:00:00.000Z' });
+      assetStore.addAssets([assetOne, assetTwo, assetThree]);
+
+      expect(assetStore.buckets.length).toEqual(3);
+      expect(assetStore.buckets[0].bucketDate).toEqual('2024-04-01T00:00:00.000Z');
+      expect(assetStore.buckets[1].bucketDate).toEqual('2024-01-01T00:00:00.000Z');
+      expect(assetStore.buckets[2].bucketDate).toEqual('2023-01-01T00:00:00.000Z');
+    });
+
+    it('updates existing asset', () => {
+      const updateAssetsSpy = vi.spyOn(assetStore, 'updateAssets');
+      const asset = assetFactory.build();
+      assetStore.addAssets([asset]);
+
+      assetStore.addAssets([asset]);
+      expect(updateAssetsSpy).toBeCalledWith([asset]);
+      expect(assetStore.assets.length).toEqual(1);
+    });
+  });
+
+  describe('updateAssets', () => {
+    let assetStore: AssetStore;
+
+    beforeEach(async () => {
+      assetStore = new AssetStore({});
+      sdkMock.getTimeBuckets.mockResolvedValue([]);
+      await assetStore.init({ width: 1588, height: 1000 });
+    });
+
+    it('ignores non-existing assets', () => {
+      assetStore.updateAssets([assetFactory.build()]);
+
+      expect(assetStore.buckets.length).toEqual(0);
+      expect(assetStore.assets.length).toEqual(0);
+    });
+
+    it('updates an asset', () => {
+      const asset = assetFactory.build({ isFavorite: false });
+      const updatedAsset = { ...asset, isFavorite: true };
+
+      assetStore.addAssets([asset]);
+      expect(assetStore.assets.length).toEqual(1);
+      expect(assetStore.assets[0].isFavorite).toEqual(false);
+
+      assetStore.updateAssets([updatedAsset]);
+      expect(assetStore.assets.length).toEqual(1);
+      expect(assetStore.assets[0].isFavorite).toEqual(true);
+    });
+
+    it('replaces bucket date when asset date changes', () => {
+      const asset = assetFactory.build({ fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      const updatedAsset = { ...asset, fileCreatedAt: '2024-03-20T12:00:00.000Z' };
+
+      assetStore.addAssets([asset]);
+      expect(assetStore.buckets.length).toEqual(1);
+      expect(assetStore.getBucketByDate('2024-01-01T00:00:00.000Z')).not.toBeNull();
+
+      assetStore.updateAssets([updatedAsset]);
+      expect(assetStore.buckets.length).toEqual(1);
+      expect(assetStore.getBucketByDate('2024-01-01T00:00:00.000Z')).toBeNull();
+      expect(assetStore.getBucketByDate('2024-03-01T00:00:00.000Z')).not.toBeNull();
+    });
+  });
+
+  describe('removeAssets', () => {
+    let assetStore: AssetStore;
+
+    beforeEach(async () => {
+      assetStore = new AssetStore({});
+      sdkMock.getTimeBuckets.mockResolvedValue([]);
+      await assetStore.init({ width: 1588, height: 1000 });
+    });
+
+    it('ignores invalid IDs', () => {
+      assetStore.addAssets(assetFactory.buildList(2, { fileCreatedAt: '2024-01-20T12:00:00.000Z' }));
+      assetStore.removeAssets(['', 'invalid', '4c7d9acc']);
+
+      expect(assetStore.assets.length).toEqual(2);
+      expect(assetStore.buckets.length).toEqual(1);
+      expect(assetStore.buckets[0].assets.length).toEqual(2);
+    });
+
+    it('removes asset from bucket', () => {
+      const [assetOne, assetTwo] = assetFactory.buildList(2, { fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      assetStore.addAssets([assetOne, assetTwo]);
+      assetStore.removeAssets([assetOne.id]);
+
+      expect(assetStore.assets.length).toEqual(1);
+      expect(assetStore.buckets.length).toEqual(1);
+      expect(assetStore.buckets[0].assets.length).toEqual(1);
+    });
+
+    it('removes bucket when empty', () => {
+      const assets = assetFactory.buildList(2, { fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      assetStore.addAssets(assets);
+      assetStore.removeAssets(assets.map((asset) => asset.id));
+
+      expect(assetStore.assets.length).toEqual(0);
+      expect(assetStore.buckets.length).toEqual(0);
+    });
+  });
+
+  describe('getPreviousAssetId', () => {
+    let assetStore: AssetStore;
+    const bucketAssets: Record<string, AssetResponseDto[]> = {
+      '2024-03-01T00:00:00.000Z': assetFactory.buildList(1),
+      '2024-02-01T00:00:00.000Z': assetFactory.buildList(6),
+      '2024-01-01T00:00:00.000Z': assetFactory.buildList(3),
+    };
+
+    beforeEach(async () => {
+      assetStore = new AssetStore({});
+      sdkMock.getTimeBuckets.mockResolvedValue([
+        { count: 1, timeBucket: '2024-03-01T00:00:00.000Z' },
+        { count: 6, timeBucket: '2024-02-01T00:00:00.000Z' },
+        { count: 3, timeBucket: '2024-01-01T00:00:00.000Z' },
+      ]);
+      sdkMock.getTimeBucket.mockImplementation(({ timeBucket }) => Promise.resolve(bucketAssets[timeBucket]));
+
+      await assetStore.init({ width: 0, height: 0 });
+    });
+
+    it('returns null for invalid assetId', async () => {
+      expect(() => assetStore.getPreviousAssetId('invalid')).not.toThrow();
+      expect(await assetStore.getPreviousAssetId('invalid')).toBeNull();
+    });
+
+    it('returns previous assetId', async () => {
+      await assetStore.loadBucket('2024-01-01T00:00:00.000Z', BucketPosition.Visible);
+      const bucket = assetStore.getBucketByDate('2024-01-01T00:00:00.000Z');
+
+      expect(await assetStore.getPreviousAssetId(bucket!.assets[1].id)).toEqual(bucket!.assets[0].id);
+    });
+
+    it('returns previous assetId spanning multiple buckets', async () => {
+      await assetStore.loadBucket('2024-02-01T00:00:00.000Z', BucketPosition.Visible);
+      await assetStore.loadBucket('2024-03-01T00:00:00.000Z', BucketPosition.Visible);
+
+      const bucket = assetStore.getBucketByDate('2024-02-01T00:00:00.000Z');
+      const previousBucket = assetStore.getBucketByDate('2024-03-01T00:00:00.000Z');
+      expect(await assetStore.getPreviousAssetId(bucket!.assets[0].id)).toEqual(previousBucket!.assets[0].id);
+    });
+
+    it('loads previous bucket', async () => {
+      await assetStore.loadBucket('2024-02-01T00:00:00.000Z', BucketPosition.Visible);
+
+      const loadBucketSpy = vi.spyOn(assetStore, 'loadBucket');
+      const bucket = assetStore.getBucketByDate('2024-02-01T00:00:00.000Z');
+      const previousBucket = assetStore.getBucketByDate('2024-03-01T00:00:00.000Z');
+      expect(await assetStore.getPreviousAssetId(bucket!.assets[0].id)).toEqual(previousBucket!.assets[0].id);
+      expect(loadBucketSpy).toBeCalledTimes(1);
+    });
+
+    it('skips removed assets', async () => {
+      await assetStore.loadBucket('2024-01-01T00:00:00.000Z', BucketPosition.Visible);
+      await assetStore.loadBucket('2024-02-01T00:00:00.000Z', BucketPosition.Visible);
+      await assetStore.loadBucket('2024-03-01T00:00:00.000Z', BucketPosition.Visible);
+
+      const [assetOne, assetTwo, assetThree] = assetStore.assets;
+      assetStore.removeAssets([assetTwo.id]);
+      expect(await assetStore.getPreviousAssetId(assetThree.id)).toEqual(assetOne.id);
+    });
+
+    it('returns null when no more assets', async () => {
+      await assetStore.loadBucket('2024-03-01T00:00:00.000Z', BucketPosition.Visible);
+      expect(await assetStore.getPreviousAssetId(assetStore.assets[0].id)).toBeNull();
+    });
+  });
+
+  describe('getBucketIndexByAssetId', () => {
+    let assetStore: AssetStore;
+
+    beforeEach(async () => {
+      assetStore = new AssetStore({});
+      sdkMock.getTimeBuckets.mockResolvedValue([]);
+      await assetStore.init({ width: 0, height: 0 });
+    });
+
+    it('returns null for invalid buckets', () => {
+      expect(assetStore.getBucketByDate('invalid')).toBeNull();
+      expect(assetStore.getBucketByDate('2024-03-01T00:00:00.000Z')).toBeNull();
+    });
+
+    it('returns the bucket index', () => {
+      const assetOne = assetFactory.build({ fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      const assetTwo = assetFactory.build({ fileCreatedAt: '2024-02-15T12:00:00.000Z' });
+      assetStore.addAssets([assetOne, assetTwo]);
+
+      expect(assetStore.getBucketIndexByAssetId(assetTwo.id)).toEqual(0);
+      expect(assetStore.getBucketIndexByAssetId(assetOne.id)).toEqual(1);
+    });
+
+    it('ignores removed buckets', () => {
+      const assetOne = assetFactory.build({ fileCreatedAt: '2024-01-20T12:00:00.000Z' });
+      const assetTwo = assetFactory.build({ fileCreatedAt: '2024-02-15T12:00:00.000Z' });
+      assetStore.addAssets([assetOne, assetTwo]);
+
+      assetStore.removeAssets([assetTwo.id]);
+      expect(assetStore.getBucketIndexByAssetId(assetOne.id)).toEqual(0);
+    });
+  });
+});