348 lines
11 KiB
TypeScript
348 lines
11 KiB
TypeScript
import React, { useState, useEffect } from 'react';
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import { useParams, useLocation, useNavigate } from 'react-router-dom';
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import { Dialog, DialogContent } from '@/components/ui/dialog';
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import { Button } from '@/components/ui/button';
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import { Heart, ChevronLeft, ChevronRight, X, Share2 } from 'lucide-react';
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import { likePhoto } from '../services/photosApi';
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import { useTranslation } from '../i18n/useTranslation';
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import { sharePhotoLink } from '../lib/sharePhoto';
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import { useToast } from '../components/ToastHost';
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type Photo = {
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id: number;
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file_path?: string;
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thumbnail_path?: string;
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likes_count?: number;
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created_at?: string;
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task_id?: number;
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task_title?: string;
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};
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type Task = { id: number; title: string };
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interface Props {
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photos?: Photo[];
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currentIndex?: number;
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onClose?: () => void;
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onIndexChange?: (index: number) => void;
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token?: string;
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}
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export default function PhotoLightbox({ photos, currentIndex, onClose, onIndexChange, token }: Props) {
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const params = useParams<{ token?: string; photoId?: string }>();
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const location = useLocation();
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const navigate = useNavigate();
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const photoId = params.photoId;
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const eventToken = params.token || token;
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const { t, locale } = useTranslation();
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const toast = useToast();
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const [standalonePhoto, setStandalonePhoto] = useState<Photo | null>(null);
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const [task, setTask] = useState<Task | null>(null);
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const [taskLoading, setTaskLoading] = useState(false);
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const [likes, setLikes] = useState<number>(0);
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const [liked, setLiked] = useState(false);
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const [shareLoading, setShareLoading] = useState(false);
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// Determine mode and photo
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const isStandalone = !photos || photos.length === 0;
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const currentPhotos = isStandalone ? (standalonePhoto ? [standalonePhoto] : []) : photos || [];
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const currentIndexVal = isStandalone ? 0 : (currentIndex || 0);
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const photo = currentPhotos[currentIndexVal];
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// Fallback onClose for standalone
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const handleClose = onClose || (() => navigate(-1));
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// Fetch single photo for standalone mode
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useEffect(() => {
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if (isStandalone && photoId && !standalonePhoto && eventToken) {
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const fetchPhoto = async () => {
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try {
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const res = await fetch(`/api/v1/photos/${photoId}?locale=${encodeURIComponent(locale)}`, {
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headers: {
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Accept: 'application/json',
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'X-Locale': locale,
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},
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});
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if (res.ok) {
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const fetchedPhoto: Photo = await res.json();
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setStandalonePhoto(fetchedPhoto);
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// Check state for initial photo
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if (location.state?.photo) {
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setStandalonePhoto(location.state.photo);
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}
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} else {
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toast.push({ text: t('lightbox.errors.notFound'), type: 'error' });
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}
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} catch (err) {
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console.warn('Standalone photo load failed', err);
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toast.push({ text: t('lightbox.errors.loadFailed'), type: 'error' });
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}
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};
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fetchPhoto();
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}
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}, [isStandalone, photoId, eventToken, standalonePhoto, location.state, t, locale, toast]);
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// Update likes when photo changes
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React.useEffect(() => {
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if (photo) {
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setLikes(photo.likes_count ?? 0);
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// Check if liked from localStorage
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try {
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const raw = localStorage.getItem('liked-photo-ids');
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const likedIds = raw ? JSON.parse(raw) : [];
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setLiked(likedIds.includes(photo.id));
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} catch {
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setLiked(false);
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}
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}
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}, [photo]);
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const touchRef = React.useRef<HTMLDivElement>(null);
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const startX = React.useRef(0);
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const currentX = React.useRef(0);
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const handleTouchStart = (e: React.TouchEvent) => {
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startX.current = e.touches[0].clientX;
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};
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const handleTouchMove = (e: React.TouchEvent) => {
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if (!touchRef.current) return;
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currentX.current = e.touches[0].clientX;
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const deltaX = currentX.current - startX.current;
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touchRef.current.style.transform = `translateX(${deltaX}px)`;
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};
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const handleTouchEnd = () => {
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if (!touchRef.current) return;
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const deltaX = currentX.current - startX.current;
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const threshold = 50; // pixels
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touchRef.current.style.transform = 'translateX(0)';
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if (Math.abs(deltaX) > threshold) {
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if (deltaX > 0 && currentIndexVal > 0) {
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// Swipe right - previous
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onIndexChange?.(currentIndexVal - 1);
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} else if (deltaX < 0 && currentIndexVal < currentPhotos.length - 1) {
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// Swipe left - next
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onIndexChange?.(currentIndexVal + 1);
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}
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}
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};
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// Load task info if photo has task_id and event key is available
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React.useEffect(() => {
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if (!photo?.task_id || !eventToken) {
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setTask(null);
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setTaskLoading(false);
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return;
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}
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const taskId = photo.task_id;
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(async () => {
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setTaskLoading(true);
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try {
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const res = await fetch(
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`/api/v1/events/${encodeURIComponent(eventToken)}/tasks?locale=${encodeURIComponent(locale)}`,
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{
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headers: {
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Accept: 'application/json',
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'X-Locale': locale,
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},
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}
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);
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if (res.ok) {
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const tasks = (await res.json()) as Task[];
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const foundTask = tasks.find((t) => t.id === taskId);
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if (foundTask) {
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setTask({
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id: foundTask.id,
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title: foundTask.title || t('lightbox.fallbackTitle').replace('{id}', `${taskId}`)
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});
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} else {
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setTask({
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id: taskId,
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title: t('lightbox.unknownTitle').replace('{id}', `${taskId}`)
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});
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}
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} else {
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setTask({
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id: taskId,
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title: t('lightbox.unknownTitle').replace('{id}', `${taskId}`)
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});
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}
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} catch (error) {
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console.error('Failed to load task:', error);
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setTask({
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id: taskId,
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title: t('lightbox.unknownTitle').replace('{id}', `${taskId}`)
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});
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} finally {
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setTaskLoading(false);
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}
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})();
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}, [photo?.task_id, eventToken, t, locale]);
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async function onLike() {
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if (liked || !photo) return;
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setLiked(true);
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try {
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const count = await likePhoto(photo.id);
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setLikes(count);
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// Update localStorage
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try {
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const raw = localStorage.getItem('liked-photo-ids');
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const arr: number[] = raw ? JSON.parse(raw) : [];
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if (!arr.includes(photo.id)) {
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localStorage.setItem('liked-photo-ids', JSON.stringify([...arr, photo.id]));
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}
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} catch (storageError) {
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console.warn('Failed to persist liked photo IDs', storageError);
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}
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} catch (error) {
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console.error('Like failed:', error);
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setLiked(false);
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}
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}
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async function onShare() {
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if (!photo || !eventToken) return;
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setShareLoading(true);
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try {
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const result = await sharePhotoLink({
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token: eventToken,
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photoId: photo.id,
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title: photo.task_title ?? task?.title ?? t('share.title', 'Geteiltes Foto'),
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text: t('share.shareText', { event: '' }),
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});
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if (result.method === 'clipboard') {
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toast.push({ text: t('share.copySuccess', 'Link kopiert!') });
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} else if (result.method === 'manual') {
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window.prompt(t('share.manualPrompt', 'Link kopieren'), result.url);
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}
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} catch (error) {
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console.error('share failed', error);
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toast.push({ text: t('share.error', 'Teilen fehlgeschlagen'), type: 'error' });
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} finally {
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setShareLoading(false);
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}
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}
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function onOpenChange(open: boolean) {
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if (!open) handleClose();
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}
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return (
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<Dialog open={true} onOpenChange={onOpenChange}>
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<DialogContent hideClose className="max-w-5xl border-0 bg-black p-0 text-white">
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{/* Header with controls */}
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<div className="flex items-center justify-between p-2">
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<div className="flex items-center gap-2">
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<Button
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variant="secondary"
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size="sm"
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onClick={onLike}
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disabled={liked}
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>
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<Heart className={`mr-1 h-4 w-4 ${liked ? 'fill-red-400 text-red-400' : ''}`} />
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{likes}
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</Button>
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<Button
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variant="secondary"
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size="sm"
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onClick={onShare}
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disabled={shareLoading || !eventToken || !photo}
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>
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<Share2 className="mr-1 h-4 w-4" />
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{t('share.button', 'Teilen')}
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</Button>
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</div>
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<div className="flex items-center gap-1">
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{currentIndexVal > 0 && (
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<Button
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variant="ghost"
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size="sm"
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onClick={() => onIndexChange?.(currentIndexVal - 1)}
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className="h-8 w-8 p-0"
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>
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<ChevronLeft className="h-4 w-4" />
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</Button>
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)}
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<Button
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variant="ghost"
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size="sm"
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onClick={onClose}
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className="h-8 w-8 p-0"
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>
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<X className="h-4 w-4" />
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</Button>
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{currentIndexVal < currentPhotos.length - 1 && (
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<Button
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variant="ghost"
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size="sm"
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onClick={() => onIndexChange?.(currentIndexVal + 1)}
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className="h-8 w-8 p-0"
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>
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<ChevronRight className="h-4 w-4" />
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</Button>
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)}
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</div>
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</div>
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{/* Task Info Overlay */}
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{task && (
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<div className="absolute bottom-4 left-4 right-4 z-20 bg-black/60 backdrop-blur-sm rounded-xl p-3 border border-white/20 max-w-md">
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<div className="text-sm">
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<div className="font-semibold mb-1 text-white">{t('lightbox.taskLabel')}: {task.title}</div>
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{taskLoading && (
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<div className="text-xs opacity-70 text-gray-300">{t('lightbox.loadingTask')}</div>
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)}
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</div>
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</div>
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)}
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{/* Photo Display */}
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<div
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ref={touchRef}
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className="flex items-center justify-center min-h-[60vh] p-4 relative overflow-hidden"
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onTouchStart={handleTouchStart}
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onTouchMove={handleTouchMove}
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onTouchEnd={handleTouchEnd}
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>
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<img
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src={photo?.file_path || photo?.thumbnail_path}
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alt={t('lightbox.photoAlt')
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.replace('{id}', `${photo?.id ?? ''}`)
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.replace(
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'{suffix}',
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photo?.task_title
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? t('lightbox.photoAltTaskSuffix').replace('{taskTitle}', photo.task_title)
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: ''
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)}
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className="max-h-[80vh] max-w-full object-contain transition-transform duration-200"
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onError={(e) => {
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console.error('Image load error:', e);
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(e.target as HTMLImageElement).style.display = 'none';
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}}
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/>
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</div>
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{/* Loading state for task */}
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{taskLoading && !task && (
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<div className="absolute top-4 left-4 right-4 z-20 bg-black/60 backdrop-blur-sm rounded-xl p-3 border border-white/20 max-w-md">
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<div className="text-sm text-center">
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<div className="animate-spin rounded-full h-4 w-4 border-b-2 border-white mx-auto mb-1"></div>
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<div className="text-xs opacity-70">{t('lightbox.loadingTask')}</div>
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</div>
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</div>
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)}
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</DialogContent>
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</Dialog>
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);
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}
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