immich/web/src/lib/managers/timeline-manager/month-group.svelte.ts
2025-10-10 17:58:10 +00:00

356 lines
11 KiB
TypeScript

import { AssetOrder, type TimeBucketAssetResponseDto } from '@immich/sdk';
import { CancellableTask } from '$lib/utils/cancellable-task';
import { handleError } from '$lib/utils/handle-error';
import {
formatGroupTitle,
formatMonthGroupTitle,
fromTimelinePlainDate,
fromTimelinePlainDateTime,
fromTimelinePlainYearMonth,
getTimes,
setDifference,
type TimelineDateTime,
type TimelineYearMonth,
} from '$lib/utils/timeline-util';
import { t } from 'svelte-i18n';
import { get } from 'svelte/store';
import { SvelteSet } from 'svelte/reactivity';
import { DayGroup } from './day-group.svelte';
import { GroupInsertionCache } from './group-insertion-cache.svelte';
import type { TimelineManager } from './timeline-manager.svelte';
import type { AssetDescriptor, AssetOperation, Direction, MoveAsset, TimelineAsset } from './types';
import { ViewerAsset } from './viewer-asset.svelte';
export class MonthGroup {
#intersecting: boolean = $state(false);
actuallyIntersecting: boolean = $state(false);
isLoaded: boolean = $state(false);
dayGroups: DayGroup[] = $state([]);
readonly timelineManager: TimelineManager;
#height: number = $state(0);
#top: number = $state(0);
#initialCount: number = 0;
#sortOrder: AssetOrder = AssetOrder.Desc;
assetsCount: number = $derived(
this.isLoaded
? this.dayGroups.reduce((accumulator, g) => accumulator + g.viewerAssets.length, 0)
: this.#initialCount,
);
loader: CancellableTask | undefined;
isHeightActual: boolean = $state(false);
readonly monthGroupTitle: string;
readonly yearMonth: TimelineYearMonth;
constructor(
store: TimelineManager,
yearMonth: TimelineYearMonth,
initialCount: number,
order: AssetOrder = AssetOrder.Desc,
) {
this.timelineManager = store;
this.#initialCount = initialCount;
this.#sortOrder = order;
this.yearMonth = yearMonth;
this.monthGroupTitle = formatMonthGroupTitle(fromTimelinePlainYearMonth(yearMonth));
this.loader = new CancellableTask(
() => {
this.isLoaded = true;
},
() => {
this.dayGroups = [];
this.isLoaded = false;
},
this.#handleLoadError,
);
}
set intersecting(newValue: boolean) {
const old = this.#intersecting;
if (old === newValue) {
return;
}
this.#intersecting = newValue;
if (newValue) {
void this.timelineManager.loadMonthGroup(this.yearMonth);
} else {
this.cancel();
}
}
get intersecting() {
return this.#intersecting;
}
get lastDayGroup() {
return this.dayGroups.at(-1);
}
getFirstAsset() {
return this.dayGroups[0]?.getFirstAsset();
}
getAssets() {
// eslint-disable-next-line unicorn/no-array-reduce
return this.dayGroups.reduce((accumulator: TimelineAsset[], g: DayGroup) => accumulator.concat(g.getAssets()), []);
}
sortDayGroups() {
if (this.#sortOrder === AssetOrder.Asc) {
return this.dayGroups.sort((a, b) => a.day - b.day);
}
return this.dayGroups.sort((a, b) => b.day - a.day);
}
runAssetOperation(ids: Set<string>, operation: AssetOperation) {
if (ids.size === 0) {
return {
moveAssets: [] as MoveAsset[],
processedIds: new SvelteSet<string>(),
unprocessedIds: ids,
changedGeometry: false,
};
}
const { dayGroups } = this;
let combinedChangedGeometry = false;
let idsToProcess = new SvelteSet(ids);
const idsProcessed = new SvelteSet<string>();
const combinedMoveAssets: MoveAsset[][] = [];
let index = dayGroups.length;
while (index--) {
if (idsToProcess.size > 0) {
const group = dayGroups[index];
const { moveAssets, processedIds, changedGeometry } = group.runAssetOperation(ids, operation);
if (moveAssets.length > 0) {
combinedMoveAssets.push(moveAssets);
}
idsToProcess = setDifference(idsToProcess, processedIds);
for (const id of processedIds) {
idsProcessed.add(id);
}
combinedChangedGeometry = combinedChangedGeometry || changedGeometry;
if (group.viewerAssets.length === 0) {
dayGroups.splice(index, 1);
combinedChangedGeometry = true;
}
}
}
return {
moveAssets: combinedMoveAssets.flat(),
unprocessedIds: idsToProcess,
processedIds: idsProcessed,
changedGeometry: combinedChangedGeometry,
};
}
addAssets(bucketAssets: TimeBucketAssetResponseDto) {
const addContext = new GroupInsertionCache();
for (let i = 0; i < bucketAssets.id.length; i++) {
const { localDateTime, fileCreatedAt } = getTimes(
bucketAssets.fileCreatedAt[i],
bucketAssets.localOffsetHours[i],
);
const timelineAsset: TimelineAsset = {
city: bucketAssets.city[i],
country: bucketAssets.country[i],
duration: bucketAssets.duration[i],
id: bucketAssets.id[i],
visibility: bucketAssets.visibility[i],
isFavorite: bucketAssets.isFavorite[i],
isImage: bucketAssets.isImage[i],
isTrashed: bucketAssets.isTrashed[i],
isVideo: !bucketAssets.isImage[i],
livePhotoVideoId: bucketAssets.livePhotoVideoId[i],
localDateTime,
fileCreatedAt,
ownerId: bucketAssets.ownerId[i],
projectionType: bucketAssets.projectionType[i],
ratio: bucketAssets.ratio[i],
stack: bucketAssets.stack?.[i]
? {
id: bucketAssets.stack[i]![0],
primaryAssetId: bucketAssets.id[i],
assetCount: Number.parseInt(bucketAssets.stack[i]![1]),
}
: null,
thumbhash: bucketAssets.thumbhash[i],
people: null, // People are not included in the bucket assets
};
if (bucketAssets.latitude?.[i] && bucketAssets.longitude?.[i]) {
timelineAsset.latitude = bucketAssets.latitude?.[i];
timelineAsset.longitude = bucketAssets.longitude?.[i];
}
this.addTimelineAsset(timelineAsset, addContext);
}
for (const group of addContext.existingDayGroups) {
group.sortAssets(this.#sortOrder);
}
if (addContext.newDayGroups.size > 0) {
this.sortDayGroups();
}
addContext.sort(this, this.#sortOrder);
return addContext.unprocessedAssets;
}
addTimelineAsset(timelineAsset: TimelineAsset, addContext: GroupInsertionCache) {
const { localDateTime } = timelineAsset;
const { year, month } = this.yearMonth;
if (month !== localDateTime.month || year !== localDateTime.year) {
addContext.unprocessedAssets.push(timelineAsset);
return;
}
let dayGroup = addContext.getDayGroup(localDateTime) || this.findDayGroupByDay(localDateTime.day);
if (dayGroup) {
addContext.setDayGroup(dayGroup, localDateTime);
} else {
const groupTitle = formatGroupTitle(fromTimelinePlainDate(localDateTime));
dayGroup = new DayGroup(this, this.dayGroups.length, localDateTime.day, groupTitle);
this.dayGroups.push(dayGroup);
addContext.setDayGroup(dayGroup, localDateTime);
addContext.newDayGroups.add(dayGroup);
}
const viewerAsset = new ViewerAsset(dayGroup, timelineAsset);
dayGroup.viewerAssets.push(viewerAsset);
addContext.changedDayGroups.add(dayGroup);
}
get viewId() {
const { year, month } = this.yearMonth;
return year + '-' + month;
}
set height(height: number) {
if (this.#height === height) {
return;
}
let needsIntersectionUpdate = false;
const timelineManager = this.timelineManager;
const index = timelineManager.months.indexOf(this);
const heightDelta = height - this.#height;
this.#height = height;
const prevMonthGroup = timelineManager.months[index - 1];
if (prevMonthGroup) {
const newTop = prevMonthGroup.#top + prevMonthGroup.#height;
if (this.#top !== newTop) {
this.#top = newTop;
}
}
if (heightDelta === 0) {
return;
}
for (let cursor = index + 1; cursor < timelineManager.months.length; cursor++) {
const monthGroup = this.timelineManager.months[cursor];
const newTop = monthGroup.#top + heightDelta;
if (monthGroup.#top !== newTop) {
monthGroup.#top = newTop;
needsIntersectionUpdate = true;
}
}
if (needsIntersectionUpdate) {
timelineManager.updateIntersections();
}
}
get height() {
return this.#height;
}
get top(): number {
return this.#top + this.timelineManager.topSectionHeight;
}
#handleLoadError(error: unknown) {
const _$t = get(t);
handleError(error, _$t('errors.failed_to_load_assets'));
}
findDayGroupForAsset(asset: TimelineAsset) {
for (const group of this.dayGroups) {
if (group.viewerAssets.some((viewerAsset) => viewerAsset.id === asset.id)) {
return group;
}
}
}
findDayGroupByDay(day: number) {
return this.dayGroups.find((group) => group.day === day);
}
findAssetAbsolutePosition(assetId: string) {
this.timelineManager.clearDeferredLayout(this);
for (const group of this.dayGroups) {
const viewerAsset = group.viewerAssets.find((viewAsset) => viewAsset.id === assetId);
if (viewerAsset) {
if (!viewerAsset.position) {
console.warn('No position for asset');
break;
}
return this.top + group.top + viewerAsset.position.top + this.timelineManager.headerHeight;
}
}
return -1;
}
*assetsIterator(options?: { startDayGroup?: DayGroup; startAsset?: TimelineAsset; direction?: Direction }) {
const direction = options?.direction ?? 'earlier';
let { startAsset } = options ?? {};
const isEarlier = direction === 'earlier';
let groupIndex = options?.startDayGroup
? this.dayGroups.indexOf(options.startDayGroup)
: isEarlier
? 0
: this.dayGroups.length - 1;
while (groupIndex >= 0 && groupIndex < this.dayGroups.length) {
const group = this.dayGroups[groupIndex];
yield* group.assetsIterator({ startAsset, direction });
startAsset = undefined;
groupIndex += isEarlier ? 1 : -1;
}
}
findAssetById(assetDescriptor: AssetDescriptor) {
for (const asset of this.assetsIterator()) {
if (asset.id === assetDescriptor.id) {
return asset;
}
}
}
findClosest(target: TimelineDateTime) {
const targetDate = fromTimelinePlainDateTime(target);
let closest = undefined;
let smallestDiff = Infinity;
for (const current of this.assetsIterator()) {
const currentAssetDate = fromTimelinePlainDateTime(current.localDateTime);
const diff = Math.abs(targetDate.diff(currentAssetDate).as('milliseconds'));
if (diff < smallestDiff) {
smallestDiff = diff;
closest = current;
}
}
return closest;
}
cancel() {
this.loader?.cancel();
}
}