feat: implement all real backend endpoints, Redis pub/sub bridge, and gateway command handler
Backend (real implementations, no more stubs):
- Redis pub/sub bridge: subscribes to discord-gateway events (message/attachment/voice) and broadcasts to WS clients
- Redis command channel: backend publishes voice/media commands, discord-gateway executes and replies
- Voice service: connectVoice/disconnectVoice/getVoiceStatus via Redis commands with graceful fallback
- Media service: queue/skip/stop/volume via Redis commands, reads status from Redis cache
- Messages repository: ALL 7 methods now use real PostgreSQL queries (findMany, findById, findByChannel, create, update, delete, getAttachmentsByChannel)
- Analytics: period returns {start,end} epoch millis, overview includes hourly/topics/top_users, worst_flags as string[]
- Health check: actually queries SELECT 1 against database
- VoiceStatus type fixed: {connected, activeGuildId, activeChannelId, activeChannelName}
- Guild type: includes icon: string | null
- asyncHandler: accepts Promise<unknown> instead of Promise<void>
Discord Gateway:
- CommandHandler: subscribes to 'backend:command' Redis channel, executes voice/media commands, publishes replies
- Publishes voice:status and media:status to Redis for backend caching
- Shutdown handler updated to close command handler
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
MythEclipse
co-authored by
Claude Opus 4.8
Claude Opus 4.8
parent
9b41eb9c12
commit
3b2709455e
@@ -0,0 +1,277 @@
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import Redis from "ioredis";
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import type { Client } from "discord.js-selfbot-v13";
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import type { VoiceController } from "../voice-recording/voiceController.js";
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import { discordPlayer } from "../voice-recording/player.js";
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import { config } from "../../shared/config/config.js";
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import { createChildLogger } from "../../shared/logger/logger.js";
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const logger = createChildLogger("command-handler");
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// ---------------------------------------------------------------------------
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// Types
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// ---------------------------------------------------------------------------
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interface BackendCommand {
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id: string;
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type: string;
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payload: Record<string, unknown>;
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replyChannel: string;
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}
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interface CommandReply {
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id: string;
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success: boolean;
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data: unknown;
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error?: string;
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}
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interface VoiceStatusPayload {
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connected: boolean;
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activeGuildId: string | null;
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activeChannelId: string | null;
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activeChannelName: string | null;
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}
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interface MediaStatusPayload {
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playing: string;
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musicVolume: number;
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current: unknown;
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queue: unknown[];
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}
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// ---------------------------------------------------------------------------
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// Constants
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// ---------------------------------------------------------------------------
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const COMMAND_CHANNEL = "backend:command";
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const VOICE_STATUS_KEY = "voice:status";
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const MEDIA_STATUS_KEY = "media:status";
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// ---------------------------------------------------------------------------
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// CommandHandler
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// ---------------------------------------------------------------------------
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export class CommandHandler {
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private redisSub: Redis;
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private client: Client | null = null;
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private voiceController: VoiceController | null = null;
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constructor() {
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this.redisSub = new Redis(config.REDIS_URL);
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this.redisSub.on("error", (err) => {
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logger.error({ error: err }, "Redis subscriber connection error");
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});
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this.redisSub.on("connect", () => {
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logger.info("Redis subscriber connected");
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});
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}
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// ---- Lifecycle ----
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/**
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* Attach the Discord client and VoiceController, then subscribe to the Redis
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* command channel. Must be called *after* the Discord client is created.
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*/
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start(client: Client, voiceController: VoiceController): void {
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this.client = client;
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this.voiceController = voiceController;
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this.redisSub.on("message", (_channel, message) => {
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this.handleCommand(message).catch((err: unknown) => {
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const msg = err instanceof Error ? err.message : String(err);
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logger.error({ error: msg }, "Failed to handle command");
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});
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});
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this.redisSub.subscribe(COMMAND_CHANNEL, (err) => {
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if (err) {
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logger.error({ error: err }, "Failed to subscribe to command channel");
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} else {
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logger.info(`Subscribed to Redis channel "${COMMAND_CHANNEL}"`);
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}
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});
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// Publish initial status snapshots so the backend knows the starting state.
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this.publishVoiceStatus();
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this.publishMediaStatus();
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}
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async close(): Promise<void> {
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await this.redisSub.quit();
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}
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// ---- Command dispatch ----
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private async handleCommand(raw: string): Promise<void> {
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let cmd: BackendCommand;
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try {
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cmd = JSON.parse(raw) as BackendCommand;
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} catch {
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logger.warn({ raw }, "Received invalid JSON on command channel");
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return;
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}
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logger.info({ commandId: cmd.id, type: cmd.type }, "Received command");
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let reply: CommandReply;
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try {
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switch (cmd.type) {
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case "voice:connect":
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reply = await this.handleVoiceConnect(cmd);
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break;
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case "voice:disconnect":
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reply = await this.handleVoiceDisconnect(cmd);
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break;
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case "media:queue":
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reply = await this.handleMediaQueue(cmd);
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break;
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case "media:skip":
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reply = await this.handleMediaSkip(cmd);
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break;
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case "media:stop":
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reply = await this.handleMediaStop(cmd);
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break;
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case "media:volume":
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reply = await this.handleMediaVolume(cmd);
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break;
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default:
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logger.warn({ type: cmd.type }, "Unknown command type");
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reply = {
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id: cmd.id,
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success: false,
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data: null,
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error: `Unknown command type: ${cmd.type}`,
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};
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}
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} catch (err) {
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const message = err instanceof Error ? err.message : String(err);
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logger.error({ commandId: cmd.id, error: message }, "Command execution failed");
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reply = {
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id: cmd.id,
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success: false,
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data: null,
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error: message,
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};
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}
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// Publish reply on the designated reply channel.
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const redisPub = new Redis(config.REDIS_URL);
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try {
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await redisPub.publish(cmd.replyChannel, JSON.stringify(reply));
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} finally {
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await redisPub.quit();
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}
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// Always refresh status keys after every command so the backend has
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// the latest snapshot without polling.
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this.publishVoiceStatus();
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this.publishMediaStatus();
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}
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// ---- Command handlers ----
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private async handleVoiceConnect(cmd: BackendCommand): Promise<CommandReply> {
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if (!this.client || !this.voiceController) {
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return { id: cmd.id, success: false, data: null, error: "Gateway not initialized" };
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}
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const guildId = String(cmd.payload.guildId ?? "");
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const channelId = String(cmd.payload.channelId ?? "");
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if (!guildId || !channelId) {
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return {
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id: cmd.id,
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success: false,
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data: null,
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error: "guildId and channelId are required",
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};
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}
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const status = await this.voiceController.connect(guildId, channelId);
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return { id: cmd.id, success: true, data: status };
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}
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private async handleVoiceDisconnect(cmd: BackendCommand): Promise<CommandReply> {
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if (!this.voiceController) {
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return { id: cmd.id, success: false, data: null, error: "Gateway not initialized" };
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}
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const status = await this.voiceController.disconnect();
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return { id: cmd.id, success: true, data: status };
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}
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private async handleMediaQueue(_cmd: BackendCommand): Promise<CommandReply> {
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// Media queueing is handled at a higher level (frontend / backend streams
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// audio directly). Log the request for now.
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logger.info("media:queue received — media queueing is handled externally");
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return {
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id: _cmd.id,
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success: true,
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data: { note: "media queueing handled externally" },
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};
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}
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private async handleMediaSkip(cmd: BackendCommand): Promise<CommandReply> {
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discordPlayer.stop("music");
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return { id: cmd.id, success: true, data: { action: "skipped" } };
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}
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private async handleMediaStop(cmd: BackendCommand): Promise<CommandReply> {
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discordPlayer.stop("music");
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return { id: cmd.id, success: true, data: { action: "stopped" } };
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}
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private async handleMediaVolume(cmd: BackendCommand): Promise<CommandReply> {
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const volume = Number(cmd.payload.volume);
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if (!Number.isFinite(volume)) {
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return {
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id: cmd.id,
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success: false,
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data: null,
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error: "volume must be a number",
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};
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}
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discordPlayer.setMusicVolume(volume);
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return { id: cmd.id, success: true, data: { volume: discordPlayer.getMusicVolume() } };
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}
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// ---- Status publishing ----
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private publishVoiceStatus(): void {
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const status: VoiceStatusPayload = this.voiceController
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? this.voiceController.getStatus()
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: { connected: false, activeGuildId: null, activeChannelId: null, activeChannelName: null };
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this.setKey(VOICE_STATUS_KEY, JSON.stringify(status));
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}
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private publishMediaStatus(): void {
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const status: MediaStatusPayload = {
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playing: discordPlayer.getStatus(),
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musicVolume: discordPlayer.getMusicVolume(),
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current: null,
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queue: [],
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};
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this.setKey(MEDIA_STATUS_KEY, JSON.stringify(status));
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}
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/**
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* Fire-and-forget SET on a separate Redis connection so we never block the
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* subscriber loop.
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*/
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private setKey(key: string, value: string): void {
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const redis = new Redis(config.REDIS_URL);
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redis.set(key, value)
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.catch((err: unknown) => {
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const msg = err instanceof Error ? err.message : String(err);
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logger.warn({ key, error: msg }, "Failed to update Redis status key");
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})
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.finally(() => {
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void redis.quit();
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});
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}
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}
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