Files
CodeNomad/packages/server/src/plugins/voice-mode.ts

97 lines
3.3 KiB
TypeScript

import type { Logger } from "../logger"
import type { ClientConnectionManager, ClientConnectionRef } from "../clients/connection-manager"
import type { PluginChannelManager } from "./channel"
interface VoiceModeManagerOptions {
connections: ClientConnectionManager
channel: PluginChannelManager
logger: Logger
}
export class VoiceModeManager {
private readonly enabledConnectionsByInstance = new Map<string, Set<string>>()
private readonly aggregateByInstance = new Map<string, boolean>()
constructor(private readonly options: VoiceModeManagerOptions) {
this.options.connections.subscribe((event) => {
if (event.type !== "disconnected") return
this.clearConnection(event.connection)
})
}
setEnabled(instanceId: string, connection: ClientConnectionRef, enabled: boolean): void {
if (enabled && !this.options.connections.isConnected(connection)) {
this.options.logger.debug(
{ instanceId, clientId: connection.clientId, connectionId: connection.connectionId },
"Ignoring voice mode enable for disconnected client connection",
)
return
}
const key = getConnectionKey(connection)
const current = this.enabledConnectionsByInstance.get(instanceId) ?? new Set<string>()
if (enabled) {
current.add(key)
this.enabledConnectionsByInstance.set(instanceId, current)
} else if (current.delete(key)) {
if (current.size === 0) {
this.enabledConnectionsByInstance.delete(instanceId)
} else {
this.enabledConnectionsByInstance.set(instanceId, current)
}
}
this.options.logger.debug({ instanceId, clientId: connection.clientId, connectionId: connection.connectionId, enabled }, "Voice mode updated for client connection")
this.publishIfChanged(instanceId)
}
syncInstance(instanceId: string): void {
this.options.channel.send(instanceId, buildVoiceModeEvent(this.isEnabled(instanceId)))
}
isEnabled(instanceId: string): boolean {
return this.aggregateByInstance.get(instanceId) === true
}
private clearConnection(connection: ClientConnectionRef): void {
const key = getConnectionKey(connection)
for (const [instanceId, enabledConnections] of Array.from(this.enabledConnectionsByInstance.entries())) {
if (!enabledConnections.delete(key)) continue
if (enabledConnections.size === 0) {
this.enabledConnectionsByInstance.delete(instanceId)
}
this.publishIfChanged(instanceId)
}
}
private publishIfChanged(instanceId: string): void {
const enabled = (this.enabledConnectionsByInstance.get(instanceId)?.size ?? 0) > 0
const previous = this.aggregateByInstance.get(instanceId) === true
if (enabled === previous) return
if (enabled) {
this.aggregateByInstance.set(instanceId, true)
} else {
this.aggregateByInstance.delete(instanceId)
}
this.options.logger.debug({ instanceId, enabled }, "Broadcasting aggregate voice mode")
this.options.channel.send(instanceId, buildVoiceModeEvent(enabled))
}
}
function buildVoiceModeEvent(enabled: boolean) {
return {
type: "codenomad.voiceMode",
properties: {
enabled,
formatVersion: "v1",
},
}
}
function getConnectionKey(connection: ClientConnectionRef): string {
return `${connection.clientId}:${connection.connectionId}`
}