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529 lines
17 KiB
TypeScript
529 lines
17 KiB
TypeScript
import { useEffect, useState } from "react";
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import { Link, useLocation, useNavigate, useParams } from "react-router";
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import { t } from "@lingui/core/macro";
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import { Trans } from "@lingui/react/macro";
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import { dumpThumbnailUrl, dumpUrl } from "../utils/urls.ts";
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import { can } from "../utils/permissions.ts";
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import { AddToPlaylistModal } from "../components/AddToPlaylistModal.tsx";
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import { API_URL, VALIDATION } from "../config/api.ts";
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import type {
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Comment,
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Dump,
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PublicUser,
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RawComment,
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RawDump,
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UpdateDumpRequest,
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} from "../model.ts";
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import {
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deserializeComment,
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deserializeDump,
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deserializePublicUser,
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parseAPIResponse,
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} from "../model.ts";
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import { useAuth } from "../hooks/useAuth.ts";
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import { useDocumentTitle } from "../hooks/useDocumentTitle.ts";
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import { relativeTime } from "../utils/relativeTime.ts";
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import { useWS } from "../hooks/useWS.ts";
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import { Avatar } from "../components/Avatar.tsx";
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import RichContentCard from "../components/RichContentCard.tsx";
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import FilePreview from "../components/FilePreview.tsx";
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import { VoteButton } from "../components/VoteButton.tsx";
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import { DumpCard } from "../components/DumpCard.tsx";
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import { PageShell } from "../components/PageShell.tsx";
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import { PageError } from "../components/PageError.tsx";
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import { Markdown } from "../components/Markdown.tsx";
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import { CommentThread } from "../components/CommentThread.tsx";
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import { Tooltip } from "../components/Tooltip.tsx";
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import { friendlyFetchError } from "../utils/apiError.ts";
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type DumpState =
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| { status: "loading" }
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| { status: "error"; error: string }
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| { status: "loaded"; dump: Dump };
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export function Dump() {
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const { selectedDump } = useParams();
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const location = useLocation();
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const navigate = useNavigate();
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const preloaded = (location.state as { dump?: Dump } | null)?.dump ?? null;
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const [dumpState, setDumpState] = useState<DumpState>(
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preloaded ? { status: "loaded", dump: preloaded } : { status: "loading" },
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);
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const [op, setOp] = useState<PublicUser | null>(null);
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const [playlistModalOpen, setPlaylistModalOpen] = useState(false);
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useDocumentTitle(
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dumpState.status === "loaded"
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? dumpState.dump.title
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: dumpState.status === "error"
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? null
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: undefined,
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);
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const [comments, setComments] = useState<Comment[]>([]);
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const [relatedDumps, setRelatedDumps] = useState<Dump[]>([]);
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const [titleEditing, setTitleEditing] = useState(false);
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const [titleDraft, setTitleDraft] = useState("");
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const [titleSaving, setTitleSaving] = useState(false);
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const [titleError, setTitleError] = useState<string | null>(null);
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const { user, token, authFetch } = useAuth();
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const {
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voteCounts,
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myVotes,
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castVote,
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removeVote,
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lastDumpEvent,
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lastCommentEvent,
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} = useWS();
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useEffect(() => {
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if (!selectedDump) return;
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const controller = new AbortController();
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if (preloaded) {
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fetch(`${API_URL}/api/users/by-id/${preloaded.userId}`, {
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signal: controller.signal,
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})
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.then((r) => r.json())
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.then((r) => r.success && setOp(deserializePublicUser(r.data)))
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.catch(() => {});
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return () => controller.abort();
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}
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(async () => {
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setDumpState({ status: "loading" });
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setOp(null);
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try {
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const res = await fetch(`${API_URL}/api/dumps/${selectedDump}`, {
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cache: "no-store",
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signal: controller.signal,
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headers: token ? { Authorization: `Bearer ${token}` } : {},
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});
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const apiResponse = parseAPIResponse<RawDump>(await res.json());
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if (!apiResponse.success) {
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throw new Error(apiResponse.error.message);
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}
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const dump: Dump = deserializeDump(apiResponse.data);
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setDumpState({ status: "loaded", dump });
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fetch(`${API_URL}/api/users/by-id/${dump.userId}`, {
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signal: controller.signal,
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})
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.then((r) => r.json())
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.then((r) => r.success && setOp(deserializePublicUser(r.data)))
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.catch(() => {});
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} catch (err) {
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if ((err as Error).name === "AbortError") return;
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setDumpState({ status: "error", error: friendlyFetchError(err) });
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}
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})();
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return () => controller.abort();
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}, [selectedDump, preloaded, token]);
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useEffect(() => {
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if (!lastDumpEvent) return;
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// Subscribing to the WS-pushed dump-update stream — setState here mirrors
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// external state into local state, no synchronous alternative.
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// eslint-disable-next-line react-hooks/set-state-in-effect
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setDumpState((prev) => {
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if (prev.status !== "loaded" || prev.dump.id !== lastDumpEvent.id) {
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return prev;
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}
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return { status: "loaded", dump: lastDumpEvent };
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});
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}, [lastDumpEvent]);
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// Fetch comments when dump loads
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useEffect(() => {
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if (!selectedDump) return;
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const controller = new AbortController();
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fetch(`${API_URL}/api/dumps/${selectedDump}/comments`, {
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signal: controller.signal,
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headers: token ? { Authorization: `Bearer ${token}` } : {},
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})
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.then((r) => r.json())
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.then((body) => {
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if (body.success) {
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setComments((body.data as RawComment[]).map(deserializeComment));
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}
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})
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.catch(() => {});
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return () => controller.abort();
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}, [selectedDump, token]);
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// Fetch related dumps (backlinks) when dump loads
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useEffect(() => {
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if (!selectedDump) return;
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const controller = new AbortController();
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fetch(`${API_URL}/api/dumps/${selectedDump}/related`, {
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signal: controller.signal,
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headers: token ? { Authorization: `Bearer ${token}` } : {},
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})
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.then((r) => r.json())
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.then((body) => {
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if (body.success) {
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setRelatedDumps((body.data as RawDump[]).map(deserializeDump));
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}
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})
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.catch(() => {});
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return () => controller.abort();
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}, [selectedDump, token]);
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// Scroll to and highlight a comment when navigating to #comment-{id}
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useEffect(() => {
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if (!location.hash.startsWith("#comment-")) return;
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const id = location.hash.slice(1);
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const el = document.getElementById(id);
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if (!el) return;
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el.scrollIntoView({ behavior: "smooth", block: "start" });
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el.classList.add("comment-node--highlight");
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const timer = setTimeout(
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() => el.classList.remove("comment-node--highlight"),
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2000,
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);
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return () => clearTimeout(timer);
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}, [comments, location.hash]);
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// React to WS comment events
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const loadedDumpId = dumpState.status === "loaded" ? dumpState.dump.id : null;
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useEffect(() => {
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if (
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!lastCommentEvent || !loadedDumpId ||
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lastCommentEvent.dumpId !== loadedDumpId
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) return;
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// Subscribing to the WS-pushed comment-event stream — setState here
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// mirrors external state into local state, no synchronous alternative.
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if (lastCommentEvent.type === "created" && lastCommentEvent.comment) {
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// eslint-disable-next-line react-hooks/set-state-in-effect
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setComments((prev) => {
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if (prev.some((c) => c.id === lastCommentEvent.comment!.id)) {
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return prev;
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}
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return [...prev, lastCommentEvent.comment!];
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});
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} else if (
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lastCommentEvent.type === "deleted" && lastCommentEvent.commentId
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) {
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setComments((prev) =>
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prev.map((c) =>
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c.id === lastCommentEvent.commentId
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? { ...c, deleted: true, body: "" }
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: c
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)
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);
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} else if (
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lastCommentEvent.type === "updated" && lastCommentEvent.comment
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) {
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setComments((prev) =>
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prev.map((c) =>
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c.id === lastCommentEvent.comment!.id ? lastCommentEvent.comment! : c
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)
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);
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}
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}, [lastCommentEvent, loadedDumpId]);
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if (dumpState.status === "loading") {
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return (
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<PageShell>
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<p className="page-loading">
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<Trans>Loading dump…</Trans>
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</p>
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</PageShell>
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);
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}
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if (dumpState.status === "error") {
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return (
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<PageError
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message={dumpState.error}
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actions={
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<>
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<button
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className="btn-border"
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type="button"
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onClick={() => globalThis.location.reload()}
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>
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<Trans>Retry</Trans>
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</button>
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<button
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className="btn-border"
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type="button"
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onClick={() => navigate("/")}
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>
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<Trans>← Back to all dumps</Trans>
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</button>
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</>
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}
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/>
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);
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}
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const { dump } = dumpState;
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const canEdit = !!user &&
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(dump.userId === user.id || can(user, "dump:moderate"));
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const handleTitleSave = async () => {
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const trimmed = titleDraft.trim();
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if (!trimmed || trimmed.length > VALIDATION.DUMP_TITLE_MAX) return;
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setTitleSaving(true);
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setTitleError(null);
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try {
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const res = await authFetch(`${API_URL}/api/dumps/${dump.id}`, {
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method: "PUT",
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body: JSON.stringify(
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{ title: trimmed } satisfies UpdateDumpRequest,
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),
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});
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const apiResponse = parseAPIResponse<RawDump>(await res.json());
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if (!apiResponse.success) {
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setTitleError(apiResponse.error.message);
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return;
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}
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const updatedDump = deserializeDump(apiResponse.data);
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setTitleEditing(false);
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if (updatedDump.slug !== dump.slug) {
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navigate(dumpUrl(updatedDump), {
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replace: true,
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state: { dump: updatedDump },
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});
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} else {
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setDumpState({ status: "loaded", dump: updatedDump });
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}
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} catch (err) {
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setTitleError(friendlyFetchError(err));
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} finally {
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setTitleSaving(false);
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}
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};
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return (
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<PageShell>
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<div className="dump-detail">
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{/* Post header */}
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<div className="dump-post-header">
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<div className="dump-header-block">
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<div className="dump-header-left">
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<VoteButton
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dumpId={dump.id}
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count={voteCounts[dump.id] ?? dump.voteCount}
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voted={myVotes.has(dump.id)}
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disabled={!user}
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onCast={castVote}
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onRemove={removeVote}
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/>
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{user && (
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<button
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type="button"
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className="btn-add-playlist"
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onClick={() => setPlaylistModalOpen(true)}
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>
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<Trans>+ Playlist</Trans>
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</button>
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)}
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</div>
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<div className="dump-header-right">
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{titleEditing
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? (
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<div className="dump-title-editor">
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<input
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type="text"
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className="dump-title-input"
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value={titleDraft}
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onChange={(e) => setTitleDraft(e.target.value)}
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onKeyDown={(e) => {
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if (e.key === "Enter") {
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e.preventDefault();
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handleTitleSave();
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} else if (e.key === "Escape") {
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setTitleEditing(false);
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}
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}}
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maxLength={VALIDATION.DUMP_TITLE_MAX}
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disabled={titleSaving}
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autoFocus
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/>
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<button
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type="button"
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className="btn-primary"
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onClick={handleTitleSave}
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disabled={titleSaving || !titleDraft.trim()}
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>
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{titleSaving
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? <Trans>Saving…</Trans>
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: <Trans>Save</Trans>}
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</button>
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<button
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type="button"
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className="form-cancel"
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onClick={() => setTitleEditing(false)}
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disabled={titleSaving}
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>
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<Trans>Cancel</Trans>
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</button>
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{titleError && (
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<p className="dump-title-error">{titleError}</p>
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)}
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</div>
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)
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: (
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<div
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className={`dump-title-view${
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canEdit ? " dump-title-view--editable" : ""
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}`}
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onClick={canEdit
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? () => {
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setTitleDraft(dump.title);
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setTitleError(null);
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setTitleEditing(true);
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}
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: undefined}
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>
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<h1 className="dump-title">{dump.title}</h1>
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{canEdit && (
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<span className="dump-title-edit-btn" aria-hidden>
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✎
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</span>
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)}
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</div>
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)}
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<div className="dump-op">
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<Avatar
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userId={dump.userId}
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username={op?.username ?? "?"}
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hasAvatar={!!op?.avatarMime}
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size={22}
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/>
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{op
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? (
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<Link to={`/users/${op.username}`} className="dump-op-link">
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{op.username}
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</Link>
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)
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: <span className="dump-op-link">…</span>}
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<Tooltip text={dump.createdAt.toLocaleString()}>
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<time
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className="dump-card-date"
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dateTime={dump.createdAt.toISOString()}
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>
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{relativeTime(dump.createdAt)}
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</time>
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</Tooltip>
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{dump.updatedAt && (
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<Tooltip text={t`Edited ${dump.updatedAt.toLocaleString()}`}>
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<span className="dump-edited-label">
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<Trans>edited {relativeTime(dump.updatedAt)}</Trans>
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</span>
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</Tooltip>
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)}
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{dump.isPrivate && (
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<span className="dump-card-private-badge">
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<Trans>private</Trans>
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</span>
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)}
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</div>
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</div>
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</div>
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{dump.comment && (
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<Markdown className="dump-comment">{dump.comment}</Markdown>
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)}
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</div>
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{/* Main content */}
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<div className="dump-rich-content">
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{dump.kind === "file"
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? <FilePreview dump={dump} global />
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: dump.richContent
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? (
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<RichContentCard
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richContent={dump.richContent}
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thumbnailOverrideUrl={dump.thumbnailMime
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? dumpThumbnailUrl(dump, token)
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: undefined}
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/>
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)
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: (
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<a
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href={dump.url}
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target="_blank"
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rel="noopener noreferrer"
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className="dump-url-link"
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>
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{dump.url}
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</a>
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)}
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</div>
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{/* Actions */}
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<div className="dump-actions">
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{canEdit && (
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<Link to={`${dumpUrl(dump)}/edit`}>
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<Trans>Edit</Trans>
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</Link>
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)}
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<Link to="/">
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<Trans>← Back to all dumps</Trans>
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</Link>
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</div>
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{/* Related (backlinks) */}
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{relatedDumps.length > 0 && (
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<section className="related-section">
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<h2 className="related-section-title">
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<Trans>Related</Trans>
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</h2>
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<ul className="dump-feed">
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{relatedDumps.map((related) => (
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<DumpCard
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key={related.id}
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dump={related}
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voteCount={voteCounts[related.id] ?? related.voteCount}
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voted={myVotes.has(related.id)}
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canVote={!!user}
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castVote={castVote}
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removeVote={removeVote}
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/>
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))}
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</ul>
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</section>
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)}
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{/* Comments */}
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<CommentThread
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dumpId={dump.id}
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comments={comments}
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currentUser={user}
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token={token}
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onCommentCreated={(c) =>
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setComments((prev) =>
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prev.some((x) => x.id === c.id) ? prev : [...prev, c]
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)}
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onCommentDeleted={(id) =>
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setComments((prev) =>
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prev.map((c) =>
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c.id === id ? { ...c, deleted: true, body: "" } : c
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)
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)}
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onCommentUpdated={(updated) =>
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setComments((prev) =>
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prev.map((c) => (c.id === updated.id ? updated : c))
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)}
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/>
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</div>
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{playlistModalOpen && (
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<AddToPlaylistModal
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dumpId={dump.id}
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onClose={() => setPlaylistModalOpen(false)}
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/>
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)}
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</PageShell>
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);
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}
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