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Discord: several radio streams per voice channel; adding never overwrites (#213)

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Owner-reported on live: adding a radio channel for a server + voice channel
that already had one (different label, system, even bot) overwrote the
existing stream and made its bot leave, because stream_id was guild:channel.

- New streams get guild:channel:<12 hex> ids (leases.new_stream_id); old
  guild:channel docs keep working for read/stop/remove/node reports. Route
  validators accept both (leases.STREAM_ID_PATTERN).
- start_stream: no stream_id = ADD. Same system already on in that channel
  is idempotent (already_on, label/mode untouched); a stopped one of that
  system is restarted; anything else is a new doc. stream_id = explicit
  restart/edit (admin Start button, reconciler), incl. moving to another bot.
- preferred_token_id is strict: bot already in this server -> 409
  preferred_busy naming the stream; on another node -> preferred_other_node;
  unusable -> preferred_unavailable. No silent swap. pool_exhausted now says
  one-bot-per-server and to add + invite another bot.
- One-token-per-guild was already enforced inside the lease transaction;
  now covered by race tests. Per-guild asyncio lock serialises the
  already-on / server-cap check with the create (guild half of #223).
- Stop by stream_id (POST /discord/guilds/{id}/stop {stream_id}); admin UI
  Stop/Start/Remove act on the row's stream; node picker lists every stream
  in a channel and adds beside other systems.
- Bot: /leave stream: (autocomplete) stops one; /leave channel: with several
  streams asks which unless all:True; bare /leave still stops the server.
  /status and /join name each stream's bot.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Logan Cusano
2026-10-05 00:30:40 -04:00
co-authored by Claude Opus 5.5
parent 16a609e35b
commit 8af410aede
15 changed files with 913 additions and 113 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drb-frontend/components/discord/StreamsPanel.tsx
+53 -9
View File
@@ -20,6 +20,11 @@ import { DIM, Field, INPUT, InviteLinks, Panel, Status, Table, TD } from "./ui";
// POST /discord/guilds/{id}/stop), which accept a platform-admin token.
// Remove is DELETE /discord/streams/{id} (admin): c2-core stops the channel
// through desired state first, then deletes it.
//
// One row per STREAM, not per voice channel: a channel can carry several,
// each with its own radio bot and system (server-26#213 follow-up). Stop,
// Start and Remove all act on the row's stream_id, so the other streams in
// the same channel keep playing. Add never replaces an existing stream.
type Invite = { name: string; invite_url: string | null }[];
@@ -48,6 +53,14 @@ function AddChannelForm({
const org = guilds.find((g) => g.guild_id === guildId)?.acting_org_id ?? null;
const systems = overview.systems.filter((s) => s.org_id == null || s.org_id === org);
const usableBots = bots.filter((b) => b.valid !== false && (b.org_id == null || b.org_id === org));
// A bot can be in one voice channel per server: name the stream holding it.
const busyHere = new Map<string, DiscordStream>();
for (const s of overview.streams) {
if (s.desired === "on" && s.guild_id === guildId && s.token_id) busyHere.set(s.token_id, s);
}
const inChannel = overview.streams.filter(
(s) => s.desired === "on" && s.guild_id === guildId && s.channel_id === channelId.trim(),
);
async function submit(e: React.FormEvent) {
e.preventDefault();
@@ -117,11 +130,25 @@ function AddChannelForm({
<Field label="Radio bot">
<select value={botId} onChange={(e) => setBotId(e.target.value)} className={INPUT}>
<option value="">Any free bot in this server</option>
{usableBots.map((b) => (
<option key={b.token_id} value={b.token_id}>Prefer {b.name}</option>
))}
{usableBots.map((b) => {
const busy = busyHere.get(b.token_id);
return (
<option key={b.token_id} value={b.token_id} disabled={!!busy}>
{busy
? `${b.name} — in use here (${busy.system_name || busy.system_id || "radio"}${busy.channel_name ? ` in ${busy.channel_name}` : ""})`
: `Use ${b.name}`}
</option>
);
})}
</select>
</Field>
{inChannel.length > 0 && (
<div className="sm:col-span-3 text-xs text-ink-muted">
This voice channel already plays{" "}
{inChannel.map((s) => `${s.system_name || s.system_id}${s.token_name ? ` (${s.token_name})` : ""}`).join(", ")}.
A new system is added beside it with another bot; nothing that is playing is replaced.
</div>
)}
{error && (
<div className="sm:col-span-3 text-xs text-sev-major">
{error.message}
@@ -154,6 +181,15 @@ export function StreamsPanel({
const [busy, setBusy] = useState<string | null>(null);
const [rowError, setRowError] = useState<{ id: string; message: string; invite: Invite } | null>(null);
const guildsById = useMemo(() => new Map(overview.guilds.map((g) => [g.guild_id, g])), [overview.guilds]);
// Streams sharing a voice channel (c2-core sorts them next to each other).
const perChannel = useMemo(() => {
const m = new Map<string, number>();
for (const s of overview.streams) {
const k = `${s.guild_id}:${s.channel_id}`;
m.set(k, (m.get(k) ?? 0) + 1);
}
return m;
}, [overview.streams]);
async function act(s: DiscordStream, fn: () => Promise<unknown>) {
setBusy(s.stream_id);
@@ -171,7 +207,7 @@ export function StreamsPanel({
return (
<Panel
title="Radio channels"
description="One row per Discord voice channel. Persistent channels come back by themselves."
description="One row per radio stream — a voice channel can carry several, each with its own bot and system. Persistent streams come back by themselves."
action={
<Button size="sm" onClick={() => setAdding((v) => !v)}>+ Add radio channel</Button>
}
@@ -205,11 +241,19 @@ export function StreamsPanel({
const g = guildsById.get(s.guild_id);
const err = rowError?.id === s.stream_id ? rowError : null;
const isOn = s.desired === "on";
const shared = (perChannel.get(`${s.guild_id}:${s.channel_id}`) ?? 1) - 1;
const name = s.channel_name || "this channel";
const what = `${s.system_name || s.system_id || "radio"} in ${name}`;
return (
<tr key={s.stream_id}>
<td className={TD}>
<b>{s.channel_name ? `🔊 ${s.channel_name}` : `channel ${shortId(s.channel_id)}`}</b>
<div className={DIM}>{g ? guildLabel(g) : guildLabel({ guild_id: s.guild_id, guild_name: s.guild_name })}</div>
{shared > 0 && (
<div className={DIM}>
+ {shared} other stream{shared === 1 ? "" : "s"} in this voice channel
</div>
)}
</td>
<td className={TD}>{source(s)}</td>
<td className={TD}><span className={DIM}>All talkgroups</span></td>
@@ -238,8 +282,8 @@ export function StreamsPanel({
variant="secondary"
disabled={busy !== null}
onClick={() => {
if (!confirm(`Stop radio in ${s.channel_name || "this channel"}?`)) return;
act(s, () => c2api.stopDiscordStream(s.guild_id, s.channel_id));
if (!confirm(`Stop ${what}?`)) return;
act(s, () => c2api.stopDiscordStream(s.guild_id, s.stream_id));
}}
>
{busy === s.stream_id ? "Stopping…" : "Stop"}
@@ -256,6 +300,7 @@ export function StreamsPanel({
channel_id: s.channel_id,
system_id: s.system_id as string,
mode: s.mode ?? "persistent",
stream_id: s.stream_id,
}),
)
}
@@ -269,10 +314,9 @@ export function StreamsPanel({
className="ml-1"
disabled={busy !== null}
onClick={() => {
const name = s.channel_name || "this channel";
const msg = isOn
? `Remove radio from ${name} permanently? It is stopped first (the node logs its radio bot out), then deleted from DRB.`
: `Remove ${name} from DRB permanently?`;
? `Remove ${what} permanently? It is stopped first (the node logs its radio bot out), then deleted from DRB.${shared > 0 ? " The other streams in this voice channel keep playing." : ""}`
: `Remove ${what} from DRB permanently?`;
if (!confirm(msg)) return;
act(s, () => c2api.deleteDiscordStream(s.stream_id));
}}