perf: reduce hotspot test startup and timeout costs

src/discord/monitor/gateway-plugin.ts

@@ -0,0 +1,63 @@
+import { GatewayIntents, GatewayPlugin } from "@buape/carbon/gateway";
+import { HttpsProxyAgent } from "https-proxy-agent";
+import WebSocket from "ws";
+import type { DiscordAccountConfig } from "../../config/types.js";
+import type { RuntimeEnv } from "../../runtime.js";
+import { danger } from "../../globals.js";
+
+export function resolveDiscordGatewayIntents(
+  intentsConfig?: import("../../config/types.discord.js").DiscordIntentsConfig,
+): number {
+  let intents =
+    GatewayIntents.Guilds |
+    GatewayIntents.GuildMessages |
+    GatewayIntents.MessageContent |
+    GatewayIntents.DirectMessages |
+    GatewayIntents.GuildMessageReactions |
+    GatewayIntents.DirectMessageReactions;
+  if (intentsConfig?.presence) {
+    intents |= GatewayIntents.GuildPresences;
+  }
+  if (intentsConfig?.guildMembers) {
+    intents |= GatewayIntents.GuildMembers;
+  }
+  return intents;
+}
+
+export function createDiscordGatewayPlugin(params: {
+  discordConfig: DiscordAccountConfig;
+  runtime: RuntimeEnv;
+}): GatewayPlugin {
+  const intents = resolveDiscordGatewayIntents(params.discordConfig?.intents);
+  const proxy = params.discordConfig?.proxy?.trim();
+  const options = {
+    reconnect: { maxAttempts: 50 },
+    intents,
+    autoInteractions: true,
+  };
+
+  if (!proxy) {
+    return new GatewayPlugin(options);
+  }
+
+  try {
+    const agent = new HttpsProxyAgent<string>(proxy);
+
+    params.runtime.log?.("discord: gateway proxy enabled");
+
+    class ProxyGatewayPlugin extends GatewayPlugin {
+      constructor() {
+        super(options);
+      }
+
+      createWebSocket(url: string) {
+        return new WebSocket(url, { agent });
+      }
+    }
+
+    return new ProxyGatewayPlugin();
+  } catch (err) {
+    params.runtime.error?.(danger(`discord: invalid gateway proxy: ${String(err)}`));
+    return new GatewayPlugin(options);
+  }
+}