first commit

apps/frontend/components/documents/document-photo-viewer.tsx

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+'use client';
+
+import * as React from 'react';
+import { ChevronLeft, ChevronRight, X, ZoomIn } from 'lucide-react';
+import { cn } from '@/lib/utils';
+
+interface DocumentFullscreenViewerProps {
+  images: { storageKey: string; url: string }[];
+  initialIndex?: number;
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+}
+
+export function DocumentFullscreenViewer({ images, initialIndex = 0, open, onOpenChange }: DocumentFullscreenViewerProps) {
+  const [index, setIndex] = React.useState(initialIndex);
+
+  React.useEffect(() => {
+    if (open) setIndex(initialIndex);
+  }, [initialIndex, open]);
+
+  React.useEffect(() => {
+    if (!open) return;
+    function onKeyDown(event: KeyboardEvent) {
+      if (event.key === 'Escape') onOpenChange(false);
+      if (event.key === 'ArrowLeft') setIndex((current) => Math.max(0, current - 1));
+      if (event.key === 'ArrowRight') setIndex((current) => Math.min(images.length - 1, current + 1));
+    }
+    window.addEventListener('keydown', onKeyDown);
+    return () => window.removeEventListener('keydown', onKeyDown);
+  }, [images.length, onOpenChange, open]);
+
+  if (!open || images.length === 0) return null;
+
+  const current = images[index];
+
+  return (
+    <div className="fixed inset-0 z-[300] flex flex-col bg-black/95">
+      <div className="flex items-center justify-between px-4 py-3 text-white">
+        <span className="text-sm text-white/80">
+          {index + 1} / {images.length}
+        </span>
+        <button type="button" onClick={() => onOpenChange(false)} className="rounded-full p-2 hover:bg-white/10" aria-label="Закрыть">
+          <X className="h-5 w-5" />
+        </button>
+      </div>
+
+      <div className="relative flex flex-1 items-center justify-center px-4 pb-6">
+        {images.length > 1 ? (
+          <button
+            type="button"
+            disabled={index === 0}
+            onClick={() => setIndex((value) => Math.max(0, value - 1))}
+            className="absolute left-4 z-10 rounded-full bg-white/10 p-2 text-white disabled:opacity-30"
+            aria-label="Предыдущее фото"
+          >
+            <ChevronLeft className="h-6 w-6" />
+          </button>
+        ) : null}
+
+        {/* eslint-disable-next-line @next/next/no-img-element */}
+        <img src={current.url} alt="Фото документа" className="max-h-[calc(100vh-120px)] max-w-full object-contain" />
+
+        {images.length > 1 ? (
+          <button
+            type="button"
+            disabled={index === images.length - 1}
+            onClick={() => setIndex((value) => Math.min(images.length - 1, value + 1))}
+            className="absolute right-4 z-10 rounded-full bg-white/10 p-2 text-white disabled:opacity-30"
+            aria-label="Следующее фото"
+          >
+            <ChevronRight className="h-6 w-6" />
+          </button>
+        ) : null}
+      </div>
+    </div>
+  );
+}
+
+interface DocumentPhotoThumbnailProps {
+  url?: string;
+  loading?: boolean;
+  className?: string;
+  onClick?: () => void;
+}
+
+export function DocumentPhotoThumbnail({ url, loading, className, onClick }: DocumentPhotoThumbnailProps) {
+  return (
+    <button
+      type="button"
+      onClick={onClick}
+      className={cn(
+        'group relative aspect-[4/3] overflow-hidden rounded-2xl border border-[#eceef4] bg-[#f4f5f8] transition hover:border-[#20212b]',
+        className
+      )}
+    >
+      {loading ? <div className="h-full w-full animate-pulse bg-[#eceef4]" /> : null}
+      {!loading && url ? (
+        <>
+          {/* eslint-disable-next-line @next/next/no-img-element */}
+          <img src={url} alt="Фото документа" className="h-full w-full object-cover" />
+          <div className="absolute inset-0 flex items-center justify-center bg-black/0 transition group-hover:bg-black/20">
+            <ZoomIn className="h-6 w-6 text-white opacity-0 transition group-hover:opacity-100" />
+          </div>
+        </>
+      ) : null}
+      {!loading && !url ? <div className="flex h-full items-center justify-center text-xs text-[#667085]">Нет превью</div> : null}
+    </button>
+  );
+}