Files
ChatApp/apps/desktop/src/pages/ConversationPage.tsx
T
2026-04-18 23:11:35 +02:00

322 lines
11 KiB
TypeScript

import { extractErrorCode } from '@chat-app/shared/i18n';
import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
import { useTranslation } from 'react-i18next';
import { useParams } from 'react-router-dom';
import { ConversationHeader } from '../components/ConversationHeader';
import { GroupInfoPanel } from '../components/GroupInfoPanel';
import { AlertIcon, ArrowRightIcon, PlusIcon, SpinnerIcon, XIcon } from '../components/icons';
import { InCallPanel } from '../components/InCallPanel';
import { MessageBubble } from '../components/MessageBubble';
import { TypingIndicator } from '../components/TypingIndicator';
import { useAuth } from '../context/AuthContext';
import { useConversationsContext } from '../context/ConversationsContext';
import { useConversationMessages } from '../lib/useConversationMessages';
import { useMessageReactions } from '../lib/useMessageReactions';
import { markRead as markMessagesReadRemote, useMessageReads } from '../lib/useMessageReads';
import { usePeerPresence } from '../lib/usePeerPresence';
import { useTypingChannel } from '../lib/useTypingChannel';
const STICK_THRESHOLD = 80;
export function ConversationPage() {
const { t } = useTranslation(['app', 'errors']);
const { id } = useParams<{ id: string }>();
const { session, device } = useAuth();
const { conversations, setActiveConversation, markRead } = useConversationsContext();
const conversation = useMemo(
() => conversations.find((c) => c.id === id) ?? null,
[conversations, id],
);
const peerId = conversation?.peer?.userId;
const peerPresence = usePeerPresence(peerId);
const { messages, loading, error, send } = useConversationMessages({
conversationId: id,
userId: session?.user.id,
deviceId: device?.id,
});
const messageIds = useMemo(() => messages.map((m) => m.id), [messages]);
const { byMessage: reactionsByMessage, toggle: toggleReaction } = useMessageReactions(
messageIds,
session?.user.id,
);
const myId = session?.user.id;
// Peer read tracking — only for 1:1 DMs.
const ownMessageIds = useMemo(
() => messages.filter((m) => m.senderId === myId).map((m) => m.id),
[messages, myId],
);
const { peerReadSet } = useMessageReads(ownMessageIds, peerId);
const lastSeenMessageId = useMemo(() => {
for (let i = messages.length - 1; i >= 0; i--) {
const m = messages[i];
if (m && m.senderId === myId && peerReadSet.has(m.id)) return m.id;
}
return null;
}, [messages, peerReadSet, myId]);
// Typing channel.
const { typingUserIds, notifyTyping, notifyStopTyping } = useTypingChannel(id, myId);
// Mark incoming messages as read (server-side, visible to peer if both sides
// have receipts on). Runs whenever new messages arrive or id changes.
useEffect(() => {
if (!id || messages.length === 0 || !myId) return;
const incoming = messages.filter((m) => m.senderId !== myId).map((m) => m.id);
if (incoming.length === 0) return;
void markMessagesReadRemote(incoming).catch((err: unknown) => {
console.error('markMessagesRead failed', err);
});
}, [id, messages, myId]);
const [text, setText] = useState('');
const [sending, setSending] = useState(false);
const [sendError, setSendError] = useState<string | null>(null);
const [stickToBottom, setStickToBottom] = useState(true);
const [attachments, setAttachments] = useState<File[]>([]);
const [infoPanelOpen, setInfoPanelOpen] = useState(false);
const scrollRef = useRef<HTMLDivElement>(null);
const fileInputRef = useRef<HTMLInputElement>(null);
useEffect(() => {
if (!id) return;
setActiveConversation(id);
return () => {
setActiveConversation(null);
};
}, [id, setActiveConversation]);
useEffect(() => {
if (id && messages.length > 0) markRead(id);
}, [id, messages.length, markRead]);
useEffect(() => {
const el = scrollRef.current;
if (!el || !stickToBottom) return;
el.scrollTop = el.scrollHeight;
}, [messages.length, stickToBottom]);
useEffect(() => {
setStickToBottom(true);
const el = scrollRef.current;
if (el) el.scrollTop = el.scrollHeight;
}, [id]);
const handleScroll = useCallback(() => {
const el = scrollRef.current;
if (!el) return;
const distanceFromBottom = el.scrollHeight - el.scrollTop - el.clientHeight;
setStickToBottom(distanceFromBottom < STICK_THRESHOLD);
}, []);
async function handleSend(e?: React.FormEvent) {
e?.preventDefault();
if ((!text.trim() && attachments.length === 0) || sending) return;
setSending(true);
setSendError(null);
try {
await send(text, attachments);
setText('');
setAttachments([]);
if (fileInputRef.current) fileInputRef.current.value = '';
setStickToBottom(true);
notifyStopTyping();
} catch (err: unknown) {
const code = extractErrorCode(err);
setSendError(
code
? t('errors:' + code, { defaultValue: t('errors:generic') })
: err instanceof Error
? err.message
: t('errors:generic'),
);
} finally {
setSending(false);
}
}
function handleFilesChosen(list: FileList | null) {
if (!list) return;
const next: File[] = [];
for (let i = 0; i < list.length; i++) {
const f = list[i];
if (!f) continue;
if (!f.type.startsWith('image/')) continue;
if (f.size > 10 * 1024 * 1024) {
setSendError('Datei zu groß (max 10 MB)');
continue;
}
next.push(f);
}
setAttachments((prev) => [...prev, ...next].slice(0, 4));
}
const isGroup = conversation?.type === 'group';
return (
<div className="relative flex h-full flex-col">
<ConversationHeader
conversation={conversation}
peerPresence={peerPresence}
{...(isGroup ? { onInfoClick: () => setInfoPanelOpen(true) } : {})}
/>
{isGroup && conversation && (
<GroupInfoPanel
open={infoPanelOpen}
onClose={() => setInfoPanelOpen(false)}
conversation={conversation}
/>
)}
{conversation && <InCallPanel conversation={conversation} />}
<div ref={scrollRef} onScroll={handleScroll} className="flex-1 overflow-y-auto px-6 py-4">
{loading ? (
<div className="flex items-center gap-2 text-xs text-neutral-500">
<SpinnerIcon className="h-3.5 w-3.5 text-brand-400" />
</div>
) : error ? (
<Banner>{error}</Banner>
) : messages.length === 0 ? (
<p className="text-center text-sm text-neutral-500"></p>
) : (
<ul className="space-y-0.5">
{messages.map((m, idx) => {
const prev = messages[idx - 1];
const grouped = idx > 0 && prev?.senderId === m.senderId;
return (
<li key={m.id}>
<MessageBubble
message={m}
mine={m.senderId === myId}
groupedWithPrev={grouped}
conversationId={id ?? ''}
reactions={reactionsByMessage.get(m.id) ?? []}
onToggleReaction={(emoji) => toggleReaction(m.id, emoji)}
showSeen={m.id === lastSeenMessageId}
/>
</li>
);
})}
</ul>
)}
</div>
<TypingIndicator
typingUserIds={typingUserIds}
members={conversation?.members ?? []}
/>
<form onSubmit={handleSend} className="border-t border-white/5 p-4">
{sendError && (
<div className="mb-2">
<Banner>{sendError}</Banner>
</div>
)}
{attachments.length > 0 && (
<div className="mb-2 flex flex-wrap gap-2">
{attachments.map((file, idx) => (
<AttachmentPreview
key={idx}
file={file}
onRemove={() =>
setAttachments((prev) => prev.filter((_, i) => i !== idx))
}
/>
))}
</div>
)}
<div className="flex items-end gap-2">
<input
ref={fileInputRef}
type="file"
accept="image/*"
multiple
className="hidden"
onChange={(e) => handleFilesChosen(e.target.files)}
/>
<button
type="button"
onClick={() => fileInputRef.current?.click()}
aria-label="Bild anhängen"
title="Bild anhängen"
className="inline-flex h-11 w-11 cursor-pointer items-center justify-center rounded-lg border border-white/10 bg-white/5 text-neutral-300 transition hover:bg-white/10 focus:outline-none focus-visible:ring-2 focus-visible:ring-brand-400/40"
>
<PlusIcon className="h-4 w-4" />
</button>
<textarea
value={text}
onChange={(e) => {
setText(e.target.value);
if (e.target.value.length > 0) notifyTyping();
}}
onKeyDown={(e) => {
if (e.key === 'Enter' && !e.shiftKey) {
e.preventDefault();
void handleSend();
}
}}
rows={1}
placeholder="…"
className="max-h-40 min-h-[44px] flex-1 resize-none rounded-lg border border-white/10 bg-ink-900/60 px-3 py-2.5 text-sm text-white placeholder-neutral-500 transition focus:border-brand-400 focus:outline-none focus:ring-2 focus:ring-brand-500/40"
/>
<button
type="submit"
disabled={sending || (text.trim().length === 0 && attachments.length === 0)}
aria-busy={sending}
className="inline-flex h-11 w-11 cursor-pointer items-center justify-center rounded-lg bg-gradient-to-br from-brand-400 to-brand-600 text-white transition hover:from-brand-300 hover:to-brand-500 focus:outline-none focus-visible:ring-2 focus-visible:ring-brand-400/60 disabled:cursor-not-allowed disabled:opacity-60"
>
{sending ? <SpinnerIcon className="h-4 w-4" /> : <ArrowRightIcon className="h-4 w-4" />}
</button>
</div>
</form>
</div>
);
}
function Banner({ children }: { children: React.ReactNode }) {
return (
<div
role="alert"
className="flex items-start gap-3 rounded-lg border border-rose-500/20 bg-rose-500/10 p-3 text-sm text-rose-100"
>
<AlertIcon className="mt-0.5 h-5 w-5 shrink-0 text-rose-400" />
<p className="min-w-0 flex-1 break-words">{children}</p>
</div>
);
}
function AttachmentPreview({ file, onRemove }: { file: File; onRemove: () => void }) {
const [url, setUrl] = useState<string | null>(null);
useEffect(() => {
const u = URL.createObjectURL(file);
setUrl(u);
return () => URL.revokeObjectURL(u);
}, [file]);
return (
<div className="relative overflow-hidden rounded-lg border border-white/10 bg-ink-900/60">
{url ? (
<img src={url} alt={file.name} className="block h-20 w-20 object-cover" />
) : (
<div className="h-20 w-20" />
)}
<button
type="button"
onClick={onRemove}
aria-label="Entfernen"
className="absolute right-1 top-1 flex h-5 w-5 cursor-pointer items-center justify-center rounded-full bg-ink-950/80 text-neutral-200 transition hover:bg-rose-500/70 hover:text-white"
>
<XIcon className="h-3 w-3" />
</button>
</div>
);
}