fix(web): enable asset viewer navigation across memory boundaries (#25741)

e2e/src/generators/memory/model-objects.ts

@@ -0,0 +1,84 @@
+import { faker } from '@faker-js/faker';
+import { MemoryType, type MemoryResponseDto, type OnThisDayDto } from '@immich/sdk';
+import { DateTime } from 'luxon';
+import { toAssetResponseDto } from 'src/generators/timeline/rest-response';
+import type { MockTimelineAsset } from 'src/generators/timeline/timeline-config';
+import { SeededRandom, selectRandomMultiple } from 'src/generators/timeline/utils';
+
+export type MemoryConfig = {
+  id?: string;
+  ownerId: string;
+  year: number;
+  memoryAt: string;
+  isSaved?: boolean;
+};
+
+export type MemoryYearConfig = {
+  year: number;
+  assetCount: number;
+};
+
+export function generateMemory(config: MemoryConfig, assets: MockTimelineAsset[]): MemoryResponseDto {
+  const now = new Date().toISOString();
+  const memoryId = config.id ?? faker.string.uuid();
+
+  return {
+    id: memoryId,
+    assets: assets.map((asset) => toAssetResponseDto(asset)),
+    data: { year: config.year } as OnThisDayDto,
+    memoryAt: config.memoryAt,
+    createdAt: now,
+    updatedAt: now,
+    isSaved: config.isSaved ?? false,
+    ownerId: config.ownerId,
+    type: MemoryType.OnThisDay,
+  };
+}
+
+export function generateMemoriesFromTimeline(
+  timelineAssets: MockTimelineAsset[],
+  ownerId: string,
+  memoryConfigs: MemoryYearConfig[],
+  seed: number = 42,
+): MemoryResponseDto[] {
+  const rng = new SeededRandom(seed);
+  const memories: MemoryResponseDto[] = [];
+  const usedAssetIds = new Set<string>();
+
+  for (const config of memoryConfigs) {
+    const yearAssets = timelineAssets.filter((asset) => {
+      const assetYear = DateTime.fromISO(asset.fileCreatedAt).year;
+      return assetYear === config.year && !usedAssetIds.has(asset.id);
+    });
+
+    if (yearAssets.length === 0) {
+      continue;
+    }
+
+    const countToSelect = Math.min(config.assetCount, yearAssets.length);
+    const selectedAssets = selectRandomMultiple(yearAssets, countToSelect, rng);
+
+    for (const asset of selectedAssets) {
+      usedAssetIds.add(asset.id);
+    }
+
+    selectedAssets.sort(
+      (a, b) => DateTime.fromISO(b.fileCreatedAt).diff(DateTime.fromISO(a.fileCreatedAt)).milliseconds,
+    );
+
+    const memoryAt = DateTime.now().set({ year: config.year }).toISO()!;
+
+    memories.push(
+      generateMemory(
+        {
+          ownerId,
+          year: config.year,
+          memoryAt,
+        },
+        selectedAssets,
+      ),
+    );
+  }
+
+  return memories;
+}