first commit
This commit is contained in:
Alex Rennie-Lis
225
src/routes/+page.svelte
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225
src/routes/+page.svelte
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<script>
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import { PUBLIC_GALLERY_NAME } from '$env/static/public';
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import { onMount } from 'svelte';
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// Svelte 5 Runes for Reactivity
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let photos = $state([]);
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let nextToken = $state(null);
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let loading = $state(false);
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let hasMore = $state(true);
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let activePhoto = $state(null);
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let observerTarget;
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// Touch tracking coordinates for swipes
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let touchStartX = 0;
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let touchEndX = 0;
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// Find the current active index
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let activeIndex = $derived(
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activePhoto ? photos.findIndex(p => p.id === activePhoto.id) : -1
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);
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async function loadPhotos() {
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if (loading || !hasMore) return;
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loading = true;
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const url = new URL('/api/photos', window.location.origin);
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if (nextToken) url.searchParams.set('next', nextToken);
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try {
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const res = await fetch(url);
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const data = await res.json();
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if (data && Array.isArray(data.photos)) {
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photos = [...photos, ...data.photos];
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nextToken = data.nextContinuationToken;
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hasMore = !!nextToken;
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}
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} catch (err) {
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console.error('Failed to load photos:', err);
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} finally {
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loading = false;
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}
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}
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onMount(() => {
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loadPhotos();
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const observer = new IntersectionObserver((entries) => {
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if (entries[0].isIntersecting && hasMore) {
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loadPhotos();
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}
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}, { rootMargin: '300px' });
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if (observerTarget) observer.observe(observerTarget);
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return () => observer.disconnect();
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});
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// Navigation triggers
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function nextPhoto() {
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if (activeIndex !== -1 && activeIndex < photos.length - 1) {
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activePhoto = photos[activeIndex + 1];
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// Automatically pre-fetch next batch if user reaches near the end of loaded list
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if (activeIndex >= photos.length - 4) loadPhotos();
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}
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}
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function prevPhoto() {
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if (activeIndex > 0) {
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activePhoto = photos[activeIndex - 1];
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}
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}
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// Keyboard Handler
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function handleKeyDown(e) {
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if (!activePhoto) return;
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if (e.key === 'Escape') activePhoto = null;
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if (e.key === 'ArrowRight') nextPhoto();
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if (e.key === 'ArrowLeft') prevPhoto();
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}
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// Swipe Handlers for Mobile Devices
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function handleTouchStart(e) {
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touchStartX = e.changedTouches[0].screenX;
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}
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function handleTouchEnd(e) {
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touchEndX = e.changedTouches[0].screenX;
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handleSwipeGesture();
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}
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function handleSwipeGesture() {
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const threshold = 50; // Minimum distance in pixels to count as a swipe
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if (touchStartX - touchEndX > threshold) {
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nextPhoto(); // Swiped left, view next
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} else if (touchEndX - touchStartX > threshold) {
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prevPhoto(); // Swiped right, view previous
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}
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}
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// File Downloader
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async function downloadImage(url, filename) {
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try {
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const res = await fetch(url);
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const blob = await res.blob();
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const blobUrl = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = blobUrl;
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a.download = filename;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(blobUrl);
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} catch (err) {
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console.error('Download failed', err);
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}
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}
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</script>
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<svelte:window onkeydown={handleKeyDown} />
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<div class="min-h-screen bg-zinc-950 text-zinc-100">
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<header class="sticky top-0 z-10 border-b border-zinc-800 bg-zinc-950/80 backdrop-blur-md px-6 py-4 flex justify-between items-center">
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<h1 class="text-xl font-bold tracking-wide">{PUBLIC_GALLERY_NAME}</h1>
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<span class="text-xs text-zinc-500 uppercase tracking-widest bg-zinc-900 border border-zinc-800 px-3 py-1 rounded-full">Secure Session</span>
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</header>
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<main class="p-4 sm:p-6 lg:p-8 max-w-[1600px] mx-auto">
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<div class="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-5 xl:grid-cols-6 gap-3 sm:gap-4">
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{#each photos as photo (photo.id)}
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<button
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class="group relative aspect-square overflow-hidden rounded-xl bg-zinc-900 border border-zinc-800 focus:outline-none focus:ring-2 focus:ring-blue-500"
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onclick={() => activePhoto = photo}
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>
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<img
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src={photo.thumbUrl}
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alt="Gallery item"
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loading="lazy"
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class="h-full w-full object-cover object-center transition-transform duration-300 group-hover:scale-105"
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/>
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<div class="absolute inset-0 bg-black/20 opacity-0 transition-opacity group-hover:opacity-100"></div>
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</button>
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{/each}
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</div>
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<div bind:this={observerTarget} class="w-full flex justify-center py-12">
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{#if loading}
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<div class="h-6 w-6 animate-spin rounded-full border-2 border-zinc-500 border-t-transparent"></div>
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{/if}
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</div>
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</main>
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</div>
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{#if activePhoto}
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<div
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class="fixed inset-0 z-50 flex flex-col items-center justify-center bg-black/95 p-4 transition-opacity select-none touch-none"
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role="dialog"
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aria-modal="true"
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tabindex="-1"
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onclick={(e) => { if (e.target === e.currentTarget) activePhoto = null; }}
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onkeydown={handleKeyDown}
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ontouchstart={handleTouchStart}
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ontouchend={handleTouchEnd}
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>
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<button
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type="button"
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class="absolute left-0 top-0 bottom-0 w-[10%] z-30 cursor-w-resize focus:outline-none flex items-center justify-start pl-4 group"
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onclick={prevPhoto}
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aria-label="Previous photo"
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disabled={activeIndex === 0}
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>
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{#if activeIndex > 0}
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<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2.5" stroke="currentColor" class="w-8 h-8 text-zinc-600 opacity-0 group-hover:opacity-100 transition-opacity duration-200">
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<path stroke-linecap="round" stroke-linejoin="round" d="M15.75 19.5L8.25 12l7.5-7.5" />
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</svg>
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{/if}
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</button>
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<button
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type="button"
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class="absolute right-0 top-0 bottom-0 w-[10%] z-30 cursor-e-resize focus:outline-none flex items-center justify-end pr-4 group"
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onclick={nextPhoto}
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aria-label="Next photo"
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disabled={activeIndex === photos.length - 1}
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>
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{#if activeIndex < photos.length - 1}
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<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2.5" stroke="currentColor" class="w-8 h-8 text-zinc-600 opacity-0 group-hover:opacity-100 transition-opacity duration-200">
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<path stroke-linecap="round" stroke-linejoin="round" d="M8.25 4.5l7.5 7.5-7.5 7.5" />
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</svg>
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{/if}
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</button>
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<div class="absolute top-4 right-4 flex items-center gap-3 z-50">
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<a
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href="/api/download?id={activePhoto.id}"
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class="rounded-full bg-zinc-900/80 p-3 text-zinc-300 hover:text-white transition hover:bg-zinc-800"
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title="Download Original"
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>
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<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" class="w-6 h-6">
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<path stroke-linecap="round" stroke-linejoin="round" d="M3 16.5v2.25A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75V16.5M16.5 12L12 16.5m0 0L7.5 12m4.5 4.5V3" />
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</svg>
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</a>
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<button
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class="rounded-full bg-zinc-900/80 p-3 text-zinc-300 hover:text-white transition hover:bg-zinc-800"
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title="Close"
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onclick={() => activePhoto = null}
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>
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<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" class="w-6 h-6">
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<path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
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</svg>
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</button>
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</div>
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<div class="relative max-h-[85vh] max-w-full flex items-center justify-center pointer-events-none">
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<img
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src={activePhoto.fullUrl}
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alt="High-resolution visual"
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class="max-h-[85vh] max-w-full object-contain rounded shadow-2xl transition-all duration-200"
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/>
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</div>
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<p class="mt-4 text-xs text-zinc-500 font-mono tracking-wider">{activePhoto.id}</p>
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</div>
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{/if}
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