Files
backspace/packages/web/src/components/chat/SpaceInviteCard.tsx
T

116 lines
4.5 KiB
TypeScript

import React, { useEffect, useState } from 'react';
import { useNavigate } from 'react-router-dom';
import { Avatar } from '../ui/Avatar';
import { getApiForOrigin } from '../../stores/spaceStore';
import { useSpaceStore } from '../../stores/spaceStore';
import type { SpaceInviteSystemPayload } from '@backspace/shared';
type LiveState =
| { kind: 'loading' }
| { kind: 'confirmed'; memberCount: number }
| { kind: 'revoked' };
interface Props {
payload: SpaceInviteSystemPayload;
senderName: string;
}
export function SpaceInviteCard({ payload, senderName }: Props) {
const navigate = useNavigate();
const joinByCode = useSpaceStore(s => s.joinByCode);
const [live, setLive] = useState<LiveState>({ kind: 'loading' });
const [joining, setJoining] = useState(false);
const [joinError, setJoinError] = useState<string | null>(null);
// Live-preview overlay: snapshot is authoritative until live confirms or
// revokes it. A mismatched spaceId is treated as revoked because the invite
// code now points to a different space than was captured at send time.
useEffect(() => {
let cancelled = false;
const client = getApiForOrigin(payload.spaceInstanceOrigin);
client.spaces.invitePreview(payload.inviteCode).then(
(preview) => {
if (cancelled) return;
if (preview.spaceId !== payload.spaceId) {
setLive({ kind: 'revoked' });
} else {
setLive({ kind: 'confirmed', memberCount: preview.memberCount });
}
},
() => { if (!cancelled) setLive({ kind: 'revoked' }); },
);
return () => { cancelled = true; };
}, [payload.inviteCode, payload.spaceId, payload.spaceInstanceOrigin]);
const memberCount = live.kind === 'confirmed' ? live.memberCount : payload.snapshot.memberCount;
const isRevoked = live.kind === 'revoked';
const onJoin = async () => {
if (joining || isRevoked) return;
setJoining(true);
setJoinError(null);
try {
// Three-way federation invariant: target the space's home origin, not
// the DM transport origin nor window.location.origin. Empty string maps
// to undefined so joinByCode follows its local-instance branch.
const space = await joinByCode(payload.inviteCode, payload.spaceInstanceOrigin || undefined);
navigate(`/channels/${space.id}`);
} catch (err) {
const msg = (err as Error)?.message ?? '';
if (msg.toLowerCase().includes('already a member')) {
// Already a member is a successful state — just navigate to the space.
// Look up the space in the store by id; if not found (rare race), stay
// silent rather than block the user with a noisy error.
navigate(`/channels/${payload.spaceId}`);
return;
}
setJoinError(msg || 'Failed to join');
setJoining(false);
}
};
return (
<div className={`my-1.5 max-w-md rounded-lg border border-white/[0.06] bg-surface-channel overflow-hidden ${isRevoked ? 'opacity-50' : ''}`}>
<div className="px-3 py-1 text-[11px] text-txt-tertiary border-b border-white/[0.06]">
{senderName} sent an invite
</div>
<div className="flex items-center gap-3 p-3">
<Avatar
src={payload.snapshot.icon}
name={payload.snapshot.spaceName}
size={48}
avatarColor={payload.snapshot.avatarColor ?? undefined}
/>
<div className="flex-1 min-w-0">
<div className="text-[14px] font-semibold text-txt-primary truncate">
{payload.snapshot.spaceName}
</div>
<div className="text-[12px] text-txt-tertiary truncate">
{memberCount} {memberCount === 1 ? 'member' : 'members'}
{payload.snapshot.instanceName ? ` · ${payload.snapshot.instanceName}` : ''}
{live.kind === 'loading' && (
<span aria-hidden className="ml-1 inline-block h-1.5 w-1.5 rounded-full bg-txt-tertiary animate-pulse" />
)}
</div>
</div>
{isRevoked ? (
<span className="glass-pill px-3 py-1 text-[12px] text-txt-tertiary">
Invite no longer valid
</span>
) : (
<button
onClick={onJoin}
disabled={joining}
className="px-4 py-1.5 rounded-md text-[13px] font-medium bg-accent-mint text-surface-base hover:bg-accent-mint/90 disabled:opacity-50"
>
{joining ? 'Joining…' : 'Join'}
</button>
)}
</div>
{joinError && (
<div className="px-3 pb-2 text-[12px] text-txt-danger">{joinError}</div>
)}
</div>
);
}