feat: @discordjs/ws (#8260)

Co-authored-by: Parbez <imranbarbhuiya.fsd@gmail.com>

packages/ws/src/utils/constants.ts

@@ -0,0 +1,68 @@
+import { readFileSync } from 'node:fs';
+import { join } from 'node:path';
+import { Collection } from '@discordjs/collection';
+import { APIVersion, GatewayOpcodes } from 'discord-api-types/v10';
+import { lazy } from './utils';
+import type { OptionalWebSocketManagerOptions, SessionInfo } from '../ws/WebSocketManager';
+
+/**
+ * Valid encoding types
+ */
+export enum Encoding {
+	JSON = 'json',
+}
+
+/**
+ * Valid compression methods
+ */
+export enum CompressionMethod {
+	ZlibStream = 'zlib-stream',
+}
+
+const packageJson = readFileSync(join(__dirname, '..', '..', 'package.json'), 'utf8');
+// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+const Package = JSON.parse(packageJson);
+
+// eslint-disable-next-line @typescript-eslint/restrict-template-expressions, @typescript-eslint/no-unsafe-member-access
+export const DefaultDeviceProperty = `@discordjs/ws ${Package.version}`;
+
+const getDefaultSessionStore = lazy(() => new Collection<number, SessionInfo | null>());
+
+/**
+ * Default options used by the manager
+ */
+export const DefaultWebSocketManagerOptions: OptionalWebSocketManagerOptions = {
+	shardCount: null,
+	shardIds: null,
+	largeThreshold: null,
+	initialPresence: null,
+	identifyProperties: {
+		browser: DefaultDeviceProperty,
+		device: DefaultDeviceProperty,
+		os: process.platform,
+	},
+	version: APIVersion,
+	encoding: Encoding.JSON,
+	compression: null,
+	retrieveSessionInfo(shardId) {
+		const store = getDefaultSessionStore();
+		return store.get(shardId) ?? null;
+	},
+	updateSessionInfo(shardId: number, info: SessionInfo | null) {
+		const store = getDefaultSessionStore();
+		if (info) {
+			store.set(shardId, info);
+		} else {
+			store.delete(shardId);
+		}
+	},
+	handshakeTimeout: 30_000,
+	helloTimeout: 60_000,
+	readyTimeout: 15_000,
+};
+
+export const ImportantGatewayOpcodes = new Set([
+	GatewayOpcodes.Heartbeat,
+	GatewayOpcodes.Identify,
+	GatewayOpcodes.Resume,
+]);