52fa16c1c8
- Add FadeIn component (IntersectionObserver scroll-reveal + load animation) - Add dark/light theme toggle (useSyncExternalStore + localStorage) - Add scroll-to-top button (appears after 300px scroll) - Add configurable footer with social links (gallery.yaml) - Add crosshair cursor on photo grid items - Add 'X photos' count badge on subpage cover images - Add light theme color palette in tokens.css
86 lines
2.3 KiB
TypeScript
86 lines
2.3 KiB
TypeScript
/**
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* Server-side URL helpers for generating public-facing asset URLs.
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* These use encoded tokens instead of raw Immich UUIDs.
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*/
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import { encodeAssetId } from './tokens';
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import { thumbHashToBlurDataUrl, thumbHashToDominantHex } from './thumbhash';
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import type { ImmichAsset } from './immich';
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/**
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* Generate a public image proxy URL for an asset.
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*/
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export function imageUrl(
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assetId: string,
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size: 'thumbnail' | 'preview' | 'original' = 'preview',
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): string {
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return `/api/image/${encodeAssetId(assetId)}?size=${size}`;
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}
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/**
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* Generate a public EXIF API URL for an asset.
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*/
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export function exifUrl(assetId: string): string {
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return `/api/exif/${encodeAssetId(assetId)}`;
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}
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/**
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* Placeholder data derived from an asset's ThumbHash.
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*/
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export interface PlaceholderData {
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blurDataURL: string;
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dominantColor: string;
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}
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/**
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* Generate blur placeholder and dominant color from an asset's ThumbHash.
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* Returns null if the asset has no ThumbHash.
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*/
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export function assetPlaceholder(asset: Pick<ImmichAsset, 'thumbhash'>): PlaceholderData | null {
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if (!asset.thumbhash) return null;
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try {
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return {
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blurDataURL: thumbHashToBlurDataUrl(asset.thumbhash),
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dominantColor: thumbHashToDominantHex(asset.thumbhash),
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};
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} catch {
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return null;
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}
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}
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/**
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* Compact EXIF summary for hover overlays.
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*/
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export interface ExifSummary {
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camera?: string;
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lens?: string;
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focalLength?: string;
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}
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/**
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* Extract a compact EXIF summary from an asset's exifInfo.
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* Returns undefined if no relevant EXIF data is available.
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*/
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export function assetExifSummary(asset: Pick<ImmichAsset, 'exifInfo'>): ExifSummary | undefined {
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const exif = asset.exifInfo;
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if (!exif) return undefined;
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const camera = exif.model || undefined;
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const lens = exif.lensModel || undefined;
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const focalLength = exif.focalLength ? `${exif.focalLength}mm` : undefined;
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if (!camera && !lens && !focalLength) return undefined;
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return { camera, lens, focalLength };
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}
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/**
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* Compute the natural aspect ratio (width / height) from EXIF dimensions.
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* Returns undefined if dimensions are not available.
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*/
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export function assetAspectRatio(asset: Pick<ImmichAsset, 'exifInfo'>): number | undefined {
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const w = asset.exifInfo?.exifImageWidth;
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const h = asset.exifInfo?.exifImageHeight;
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if (w && h && h > 0) return w / h;
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return undefined;
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}
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