135 lines
4.1 KiB
TypeScript
135 lines
4.1 KiB
TypeScript
"use client";
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/**
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* Attachments under a message bubble.
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*
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* Media (images and videos) tile into a grid and open in a lightbox; links and
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* files keep their own row treatments, since a link card and a photo are read
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* very differently.
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*
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* Media is fetched through the BFF's stable /chat/attachments/{id} URL, which
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* re-checks membership and redirects to a short-lived signed URL. The object
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* itself lives in a private bucket and is never public.
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*/
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import { useState } from "react";
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import { FileText } from "lucide-react";
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import { LinkPreviewCard } from "@/components/chat/link-preview-card";
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import { MediaGrid } from "@/components/chat/media-grid";
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import { MediaLightbox } from "@/components/chat/media-lightbox";
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import { QuoteCard } from "@/components/chat/quote-card";
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import { cn } from "@/lib/utils";
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import { SharedPostCard } from "@/components/chat/shared-post-card";
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import { attachmentUrl, type Attachment } from "@/lib/chat";
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function humanSize(bytes?: number | null): string {
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if (!bytes) return "";
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const units = ["B", "KB", "MB", "GB"];
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let n = bytes;
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let i = 0;
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while (n >= 1024 && i < units.length - 1) {
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n /= 1024;
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i += 1;
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}
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return `${n < 10 && i > 0 ? n.toFixed(1) : Math.round(n)} ${units[i]}`;
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}
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export function MessageAttachments({
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attachments,
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}: {
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attachments: Attachment[];
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}) {
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const [lightboxAt, setLightboxAt] = useState<number | null>(null);
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if (!attachments || attachments.length === 0) return null;
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// Only images and videos tile; everything else keeps its own row.
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const media = attachments.filter(
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(a) => a.kind === "image" || a.kind === "video",
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);
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const rest = attachments.filter(
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(a) => a.kind !== "image" && a.kind !== "video",
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);
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return (
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<>
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<div
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className={cn(
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"flex flex-col gap-1.5",
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// Separates attachments from body text above them. A shared post
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// leads its bubble, so there is nothing to separate from.
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attachments.some((a) => a.kind === "entity") ? undefined : "mt-1",
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)}
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>
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{media.length > 0 && (
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<MediaGrid items={media} onOpen={(i) => setLightboxAt(i)} />
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)}
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{rest.map((a) => {
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switch (a.kind) {
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case "entity":
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return <SharedPostCard key={a.id} attachment={a} />;
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case "quote":
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return <QuoteCard key={a.id} attachment={a} />;
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case "link":
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return (
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<LinkPreviewCard
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key={a.id}
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compact
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preview={{
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url: a.url ?? "",
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title: a.title ?? undefined,
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description: a.description ?? undefined,
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site_name: a.site_name ?? undefined,
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image_url: a.image_url ?? undefined,
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}}
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/>
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);
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case "audio":
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return (
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<audio
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key={a.id}
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src={attachmentUrl(a.id)}
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controls
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className="w-56"
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/>
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);
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default:
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return (
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<a
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key={a.id}
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href={attachmentUrl(a.id)}
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target="_blank"
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rel="noopener noreferrer"
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className="flex items-center gap-2 rounded-lg bg-black/5 px-2 py-1.5 text-xs hover:opacity-90 dark:bg-white/10"
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>
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<FileText className="size-4 shrink-0" />
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<span className="min-w-0 flex-1 truncate">
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{a.file_name ?? "Attachment"}
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</span>
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{a.size_bytes ? (
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<span className="shrink-0 opacity-70">
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{humanSize(a.size_bytes)}
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</span>
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) : null}
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</a>
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);
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}
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})}
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</div>
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{lightboxAt !== null && (
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<MediaLightbox
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items={media}
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startIndex={lightboxAt}
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onClose={() => setLightboxAt(null)}
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/>
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)}
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</>
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);
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}
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