chore(rpc): promote Wrapper to BaseInstance

rpc/src/core/base.ts

@@ -1,9 +1,10 @@
-import { Emitter } from '../utils/emitter'
+import { Emitter, type Handler } from '../utils/emitter'
 import {
 	handlerErrorMessage,
 	notRegisteredMessage,
 	RPCError,
 } from '../utils/errors'
+import { generateUUID } from '../utils/funcs'
 import { Pending } from '../utils/pending'
 import {
 	type RPCConfig,
@@ -12,21 +13,84 @@ import {
 	type RPCState,
 } from '../utils/types'
 
-export class Wrapper {
-	protected env: RPCEnvironment
-	protected _emitterLocal: Emitter
-	protected _pending: Pending
-	protected debug: boolean
-	protected console: Console
+/** Shared plumbing of the server, client and webview instances */
+export class RPCInstanceBase {
+	protected readonly env: RPCEnvironment
+	protected readonly debug: boolean
+	protected readonly _emitterLocal = new Emitter()
+	protected readonly _pending: Pending
 
 	constructor(cfg: RPCConfig<RPCEnvironment>) {
 		this.env = cfg.env
-		this._emitterLocal = new Emitter()
-		this._pending = new Pending(cfg.timeout ?? 5000)
 		this.debug = cfg.debug ?? false
-		this.console = console
+		this._pending = new Pending(cfg.timeout ?? 5000)
 	}
 
+	// ===== LISTENERS =====
+
+	/** Registers `cb` for `event` on `emitter`; `method` is only used for logs */
+	protected listen(
+		emitter: Emitter,
+		method: string,
+		event: string,
+		cb: Handler,
+	): this {
+		this.log(`${method} ${event}`)
+		emitter.on(event, cb)
+		return this
+	}
+
+	protected unlisten(emitter: Emitter, method: string, event: string): this {
+		this.log(`${method} ${event}`)
+		emitter.off(event)
+		return this
+	}
+
+	// ===== OUTGOING =====
+
+	/** Builds an event payload sent from this environment to `to` */
+	protected request(
+		event: string,
+		to: RPCEnvironment,
+		args: unknown[],
+		player: number | null,
+	): RPCState {
+		return {
+			event,
+			uuid: generateUUID(),
+			calledFrom: this.env,
+			calledTo: to,
+			error: null,
+			data: args,
+			player,
+			type: 'event',
+		}
+	}
+
+	/** Calls a listener registered with `onSelf` in this environment */
+	protected emitLocal<R>(event: string, args: unknown[]): Promise<R> {
+		this.log(`emitSelf ${event}`)
+		if (!this._emitterLocal.has(event)) {
+			throw new RPCError(
+				RPCErrors.EVENT_NOT_REGISTERED,
+				notRegisteredMessage(event, this.env, this.env),
+				{ event, uuid: '', from: this.env, to: this.env },
+			)
+		}
+		return this._emitterLocal.emit<R>(event, ...args)
+	}
+
+	/** Settles the call waiting for `response`; ignores late or unexpected ones */
+	protected settle(response: RPCState): void {
+		const found = response.error
+			? this._pending.reject(response.uuid, RPCError.fromResponse(response))
+			: this._pending.resolve(response.uuid, response.data?.[0])
+
+		if (!found) this.logIgnored(response)
+	}
+
+	// ===== INCOMING =====
+
 	/**
 	 * Runs the listener for `request` and builds the response to send back.
 	 * Never throws: a missing listener or a thrown error ends up in `error`.
@@ -57,7 +121,7 @@ export class Wrapper {
 			return this.response(request, [data], null)
 		} catch (e) {
 			// keep the stack visible where the listener lives
-			this.console.error(e)
+			console.error(e)
 			return this.errorResponse(
 				request,
 				new RPCError(
@@ -83,32 +147,17 @@ export class Wrapper {
 		})
 	}
 
-	/** Settles the call waiting for `response`; ignores late or unexpected ones */
-	protected settle(response: RPCState): void {
-		const found = response.error
-			? this._pending.reject(response.uuid, RPCError.fromResponse(response))
-			: this._pending.resolve(response.uuid, response.data?.[0])
+	// ===== LOGS =====
 
-		if (!found) this.logIgnored(response)
-	}
-
-	/** Throws if no local listener is registered for `event` */
-	protected assertListener(emitter: Emitter, event: string): void {
-		if (!emitter.has(event)) {
-			throw new RPCError(
-				RPCErrors.EVENT_NOT_REGISTERED,
-				notRegisteredMessage(event, this.env, this.env),
-				{ event, uuid: '', from: this.env, to: this.env },
-			)
-		}
+	/** Debug-only log, prefixed with the environment */
+	protected log(message: string): void {
+		if (this.debug) console.log(`[RPC]:${this.env}:${message}`)
 	}
 
 	protected logIgnored(response: RPCState): void {
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:ignored response ${response.event} ${response.uuid} (no pending call, possibly timed out)`,
-			)
-		}
+		this.log(
+			`ignored response ${response.event} ${response.uuid} (no pending call, possibly timed out)`,
+		)
 	}
 
 	private response(

rpc/src/core/client.ts

@@ -2,7 +2,7 @@ import type * as s from '@entityseven/fivem-rpc-shared-types'
 
 import { Emitter } from '../utils/emitter'
 import { RPCError } from '../utils/errors'
-import { generateUUID, parse, stringify, stringifyWeb } from '../utils/funcs'
+import { parse, stringify, stringifyWeb } from '../utils/funcs'
 import {
 	NATIVE_CLIENT_EVENTS,
 	NATIVE_CLIENT_NETWORK_EVENTS,
@@ -17,9 +17,9 @@ import {
 	type RPCStateRaw,
 	type RPCStateWeb,
 } from '../utils/types'
-import { Wrapper } from './wrapper'
+import { RPCInstanceBase } from './base'
 
-export class RPCInstanceClient extends Wrapper {
+export class RPCInstanceClient extends RPCInstanceBase {
 	private readonly _emitterServer: Emitter
 	private readonly _emitterWeb: Emitter
 
@@ -29,7 +29,7 @@ export class RPCInstanceClient extends Wrapper {
 		this._emitterServer = new Emitter()
 		this._emitterWeb = new Emitter()
 
-		this.console.log('[RPC] Initialized Client')
+		console.log('[RPC] Initialized Client')
 
 		onNet(RPCEvents.LISTENER_SERVER, this._handleServer.bind(this))
 		RegisterNuiCallbackType(RPCEvents.LISTENER_WEB)
@@ -55,11 +55,9 @@ export class RPCInstanceClient extends Wrapper {
 		}
 		const payload = parse(payloadRaw)
 
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:client:accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
+		this.log(
+			`accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
+		)
 
 		if (payload.type === 'event') {
 			if (payload.calledTo === 'client') {
@@ -88,11 +86,9 @@ export class RPCInstanceClient extends Wrapper {
 	}
 
 	private async _handleWeb(payload: RPCState): Promise<unknown> {
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:client:accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
+		this.log(
+			`accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
+		)
 
 		if (payload.type === 'event') {
 			if (payload.calledTo === 'client') {
@@ -134,25 +130,13 @@ export class RPCInstanceClient extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onServer ${eventName}`)
-		}
-
-		this._emitterServer.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterServer, 'onServer', eventName, cb)
 	}
 
 	public offServer<EventName extends keyof s.RPCEvents_ServerClient>(
 		eventName: EventName,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:offServer ${eventName}`)
-		}
-
-		this._emitterServer.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterServer, 'offServer', eventName)
 	}
 
 	public async emitServer<
@@ -160,16 +144,12 @@ export class RPCInstanceClient extends Wrapper {
 		Arguments extends Parameters<s.RPCEvents_ClientServer[EventName]>,
 		Response extends ReturnType<s.RPCEvents_ClientServer[EventName]>,
 	>(eventName: EventName, ...args: Arguments): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'client',
-			calledTo: 'server',
-			error: null,
-			data: args.length ? args : null,
-			player: GetPlayerServerId(PlayerId()),
-			type: 'event',
-		}
+		const payload = this.request(
+			eventName,
+			'server',
+			args,
+			GetPlayerServerId(PlayerId()),
+		)
 
 		emitNet(RPCEvents.LISTENER_CLIENT, stringify(payload))
 
@@ -188,25 +168,13 @@ export class RPCInstanceClient extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onWebview ${eventName}`)
-		}
-
-		this._emitterWeb.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterWeb, 'onWebview', eventName, cb)
 	}
 
 	public offWebview<EventName extends keyof s.RPCEvents_WebviewClient>(
 		eventName: EventName,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:offWebview ${eventName}`)
-		}
-
-		this._emitterWeb.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterWeb, 'offWebview', eventName)
 	}
 
 	public async emitWebview<
@@ -214,16 +182,7 @@ export class RPCInstanceClient extends Wrapper {
 		Arguments extends Parameters<s.RPCEvents_ClientWebview[EventName]>,
 		Response extends ReturnType<s.RPCEvents_ClientWebview[EventName]>,
 	>(eventName: EventName, ...args: Arguments): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'client',
-			calledTo: 'webview',
-			error: null,
-			data: args.length ? args : null,
-			player: PlayerId(),
-			type: 'event',
-		}
+		const payload = this.request(eventName, 'webview', args, PlayerId())
 
 		this._sendWebMessage({
 			origin: RPCEvents.LISTENER_CLIENT,
@@ -245,25 +204,13 @@ export class RPCInstanceClient extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onSelf ${eventName}`)
-		}
-
-		this._emitterLocal.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterLocal, 'onSelf', eventName, cb)
 	}
 
 	public offSelf<EventName extends keyof s.RPCEvents_Client>(
 		eventName: EventName,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:offSelf ${eventName}`)
-		}
-
-		this._emitterLocal.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterLocal, 'offSelf', eventName)
 	}
 
 	public async emitSelf<
@@ -271,29 +218,7 @@ export class RPCInstanceClient extends Wrapper {
 		Arguments extends Parameters<s.RPCEvents_Client[EventName]>,
 		Response extends ReturnType<s.RPCEvents_Client[EventName]>,
 	>(eventName: EventName, ...args: Arguments): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'client',
-			calledTo: 'client',
-			error: null,
-			data: args.length ? args : null,
-			player: null,
-			type: 'event',
-		}
-
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:accepted ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
-
-		this.assertListener(this._emitterLocal, payload.event)
-
-		return await this._emitterLocal.emit<Awaited<Response>>(
-			payload.event,
-			...(payload.data && payload.data.length > 0 ? payload.data : []),
-		)
+		return this.emitLocal<Awaited<Response>>(eventName, args)
 	}
 
 	// ===== OTHER =====
@@ -305,9 +230,7 @@ export class RPCInstanceClient extends Wrapper {
 		command: CommandName,
 		cb: (player: number, args: CallbackArguments, commandRaw: string) => void,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onCommand ${command}`)
-		}
+		this.log(`onCommand ${command}`)
 
 		RegisterCommand(command, cb, false)
 
@@ -322,9 +245,7 @@ export class RPCInstanceClient extends Wrapper {
 			throw new RPCError(RPCErrors.UNKNOWN_NATIVE, RPCErrors.UNKNOWN_NATIVE)
 		}
 
-		if (this.debug) {
-			this.console.log(`[RPC]:onNativeEvent ${eventName}`)
-		}
+		this.log(`onNativeEvent ${eventName}`)
 
 		on(eventName, cb)
 
@@ -341,9 +262,7 @@ export class RPCInstanceClient extends Wrapper {
 			throw new RPCError(RPCErrors.UNKNOWN_NATIVE, RPCErrors.UNKNOWN_NATIVE)
 		}
 
-		if (this.debug) {
-			this.console.log(`[RPC]:onNativeNetworkEvent ${eventName}`)
-		}
+		this.log(`onNativeNetworkEvent ${eventName}`)
 
 		on(eventName, cb)
 
@@ -351,9 +270,7 @@ export class RPCInstanceClient extends Wrapper {
 	}
 
 	public setWebviewFocus(hasFocus: boolean, hasCursor: boolean): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:setWebviewFocus ${hasFocus} ${hasCursor}`)
-		}
+		this.log(`setWebviewFocus ${hasFocus} ${hasCursor}`)
 
 		SetNuiFocus(hasFocus, hasCursor)
 

rpc/src/core/server.ts

@@ -2,19 +2,18 @@ import type * as s from '@entityseven/fivem-rpc-shared-types'
 
 import { Emitter } from '../utils/emitter'
 import { RPCError } from '../utils/errors'
-import { generateUUID, parse, stringify } from '../utils/funcs'
+import { parse, stringify } from '../utils/funcs'
 import { NATIVE_SERVER_EVENTS } from '../utils/native'
 import {
 	type RPCConfig,
 	RPCErrors,
 	RPCEvents,
 	type RPCNativeServerEvents,
-	type RPCState,
 	type RPCStateRaw,
 } from '../utils/types'
-import { Wrapper } from './wrapper'
+import { RPCInstanceBase } from './base'
 
-export class RPCInstanceServer extends Wrapper {
+export class RPCInstanceServer extends RPCInstanceBase {
 	private readonly _emitterClient: Emitter
 	private readonly _emitterWeb: Emitter
 
@@ -24,7 +23,7 @@ export class RPCInstanceServer extends Wrapper {
 		this._emitterClient = new Emitter()
 		this._emitterWeb = new Emitter()
 
-		this.console.log('[RPC] Initialized Server')
+		console.log('[RPC] Initialized Server')
 
 		onNet(RPCEvents.LISTENER_CLIENT, this._handleClient.bind(this))
 		onNet(RPCEvents.LISTENER_WEB, this._handleWeb.bind(this))
@@ -40,17 +39,15 @@ export class RPCInstanceServer extends Wrapper {
 		}
 		const payload = parse(payloadRaw)
 
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:server:accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
+		this.log(
+			`accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
+		)
 
 		if (payload.calledFrom === 'client') {
 			if (payload.type === 'event') {
 				if (payload.player === null || payload.player === -1) {
 					// nobody to reply to, the caller times out
-					this.console.error(
+					console.error(
 						new RPCError(
 							RPCErrors.NO_PLAYER,
 							`${RPCErrors.NO_PLAYER}: "${payload.event}" from ${payload.calledFrom}`,
@@ -81,17 +78,15 @@ export class RPCInstanceServer extends Wrapper {
 		}
 		const payload = parse(payloadRaw)
 
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:server:accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
+		this.log(
+			`accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
+		)
 
 		if (payload.calledFrom === 'webview') {
 			if (payload.type === 'event') {
 				if (payload.player === null || payload.player === -1) {
 					// nobody to reply to, the caller times out
-					this.console.error(
+					console.error(
 						new RPCError(
 							RPCErrors.NO_PLAYER,
 							`${RPCErrors.NO_PLAYER}: "${payload.event}" from ${payload.calledFrom}`,
@@ -127,25 +122,13 @@ export class RPCInstanceServer extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onClient ${eventName}`)
-		}
-
-		this._emitterClient.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterClient, 'onClient', eventName, cb)
 	}
 
 	public offClient<EventName extends keyof s.RPCEvents_ClientServer>(
 		eventName: EventName,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:offClient ${eventName}`)
-		}
-
-		this._emitterClient.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterClient, 'offClient', eventName)
 	}
 
 	public async emitClient<
@@ -157,16 +140,7 @@ export class RPCInstanceServer extends Wrapper {
 		eventName: EventName,
 		...args: Arguments
 	): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'server',
-			calledTo: 'client',
-			error: null,
-			data: args.length ? args : null,
-			player: player,
-			type: 'event',
-		}
+		const payload = this.request(eventName, 'client', args, player)
 
 		emitNet(RPCEvents.LISTENER_SERVER, player, stringify(payload))
 
@@ -177,16 +151,7 @@ export class RPCInstanceServer extends Wrapper {
 		EventName extends keyof s.RPCEvents_ServerClient,
 		Arguments extends Parameters<s.RPCEvents_ServerClient[EventName]>,
 	>(eventName: EventName, ...args: Arguments): Promise<void> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'server',
-			calledTo: 'client',
-			error: null,
-			data: args.length ? args : null,
-			player: -1,
-			type: 'event',
-		}
+		const payload = this.request(eventName, 'client', args, -1)
 
 		emitNet(RPCEvents.LISTENER_SERVER, -1, stringify(payload))
 	}
@@ -204,25 +169,13 @@ export class RPCInstanceServer extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onWebview ${eventName}`)
-		}
-
-		this._emitterWeb.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterWeb, 'onWebview', eventName, cb)
 	}
 
 	public offWebview<EventName extends keyof s.RPCEvents_WebviewServer>(
 		eventName: EventName,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:offWebview ${eventName}`)
-		}
-
-		this._emitterWeb.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterWeb, 'offWebview', eventName)
 	}
 
 	public async emitWebview<
@@ -234,16 +187,7 @@ export class RPCInstanceServer extends Wrapper {
 		eventName: EventName,
 		...args: Arguments
 	): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'server',
-			calledTo: 'webview',
-			error: null,
-			data: args.length ? args : null,
-			player: player,
-			type: 'event',
-		}
+		const payload = this.request(eventName, 'webview', args, player)
 
 		emitNet(RPCEvents.LISTENER_SERVER, player, stringify(payload))
 
@@ -262,25 +206,13 @@ export class RPCInstanceServer extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onSelf ${eventName}`)
-		}
-
-		this._emitterLocal.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterLocal, 'onSelf', eventName, cb)
 	}
 
 	public offSelf<EventName extends keyof s.RPCEvents_Server>(
 		eventName: EventName,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:offSelf ${eventName}`)
-		}
-
-		this._emitterLocal.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterLocal, 'offSelf', eventName)
 	}
 
 	public async emitSelf<
@@ -288,29 +220,7 @@ export class RPCInstanceServer extends Wrapper {
 		Arguments extends Parameters<s.RPCEvents_Server[EventName]>,
 		Response extends ReturnType<s.RPCEvents_Server[EventName]>,
 	>(eventName: EventName, ...args: Arguments): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'server',
-			calledTo: 'server',
-			error: null,
-			data: args.length ? args : null,
-			player: null,
-			type: 'event',
-		}
-
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:accepted ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
-
-		this.assertListener(this._emitterLocal, payload.event)
-
-		return await this._emitterLocal.emit<Awaited<Response>>(
-			payload.event,
-			...(payload.data && payload.data.length > 0 ? payload.data : []),
-		)
+		return this.emitLocal<Awaited<Response>>(eventName, args)
 	}
 
 	// ===== OTHER =====
@@ -323,9 +233,7 @@ export class RPCInstanceServer extends Wrapper {
 		cb: (player: number, args: CallbackArguments, commandRaw: string) => void,
 		restricted = false,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onCommand ${command}`)
-		}
+		this.log(`onCommand ${command}`)
 
 		RegisterCommand(command, cb, restricted)
 
@@ -340,9 +248,7 @@ export class RPCInstanceServer extends Wrapper {
 			throw new RPCError(RPCErrors.UNKNOWN_NATIVE, RPCErrors.UNKNOWN_NATIVE)
 		}
 
-		if (this.debug) {
-			this.console.log(`[RPC]:onNativeEvent ${eventName}`)
-		}
+		this.log(`onNativeEvent ${eventName}`)
 
 		on(eventName, cb)
 

rpc/src/core/webview.ts

@@ -1,7 +1,7 @@
 import type * as s from '@entityseven/fivem-rpc-shared-types'
 
 import { Emitter } from '../utils/emitter'
-import { generateUUID, stringify } from '../utils/funcs'
+import { stringify } from '../utils/funcs'
 import {
 	RPCEvents,
 	type RPCConfig,
@@ -9,9 +9,9 @@ import {
 	type RPCStateRaw,
 	type RPCStateWeb,
 } from '../utils/types'
-import { Wrapper } from './wrapper'
+import { RPCInstanceBase } from './base'
 
-export class RPCInstanceWebview extends Wrapper {
+export class RPCInstanceWebview extends RPCInstanceBase {
 	private readonly _emitterClient: Emitter
 	private readonly _emitterServer: Emitter
 
@@ -21,7 +21,7 @@ export class RPCInstanceWebview extends Wrapper {
 		this._emitterClient = new Emitter()
 		this._emitterServer = new Emitter()
 
-		this.console.log('[RPC] Initialized Webview')
+		console.log('[RPC] Initialized Webview')
 
 		window.addEventListener('message', (e: MessageEvent<RPCStateWeb>) => {
 			if (e.data.origin === RPCEvents.LISTENER_CLIENT) {
@@ -36,11 +36,9 @@ export class RPCInstanceWebview extends Wrapper {
 	// ===== HANDLERS =====
 
 	private async _handleClient(payload: RPCState) {
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:webview:accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
+		this.log(
+			`accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
+		)
 
 		if (payload.calledFrom === 'client' && payload.type === 'event') {
 			const response = await this.dispatch(this._emitterClient, payload)
@@ -50,11 +48,9 @@ export class RPCInstanceWebview extends Wrapper {
 	}
 
 	private async _handleServer(payload: RPCState) {
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:webview:accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
+		this.log(
+			`accepted ${payload.type} ${payload.event} from ${payload.calledFrom}`,
+		)
 
 		if (payload.calledFrom === 'server' && payload.type === 'event') {
 			const response = await this.dispatch(this._emitterServer, payload)
@@ -75,25 +71,13 @@ export class RPCInstanceWebview extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onClient ${eventName}`)
-		}
-
-		this._emitterClient.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterClient, 'onClient', eventName, cb)
 	}
 
 	public offClient<EventName extends keyof s.RPCEvents_ClientWebview>(
 		eventName: EventName,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:offClient ${eventName}`)
-		}
-
-		this._emitterClient.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterClient, 'offClient', eventName)
 	}
 
 	public async emitClient<
@@ -101,16 +85,7 @@ export class RPCInstanceWebview extends Wrapper {
 		Arguments extends Parameters<s.RPCEvents_WebviewClient[EventName]>,
 		Response extends ReturnType<s.RPCEvents_WebviewClient[EventName]>,
 	>(eventName: EventName, ...args: Arguments): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'webview',
-			calledTo: 'client',
-			error: null,
-			data: args.length ? args : null,
-			player: null,
-			type: 'event',
-		}
+		const payload = this.request(eventName, 'client', args, null)
 
 		return this._request<Awaited<Response>>(payload)
 	}
@@ -127,25 +102,13 @@ export class RPCInstanceWebview extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onServer ${eventName}`)
-		}
-
-		this._emitterServer.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterServer, 'onServer', eventName, cb)
 	}
 
 	public offServer<EventName extends keyof s.RPCEvents_ServerWebview>(
 		eventName: EventName,
 	): RPCInstanceWebview {
-		if (this.debug) {
-			this.console.log(`[RPC]:offServer ${eventName}`)
-		}
-
-		this._emitterServer.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterServer, 'offServer', eventName)
 	}
 
 	public async emitServer<
@@ -153,16 +116,7 @@ export class RPCInstanceWebview extends Wrapper {
 		Arguments extends Parameters<s.RPCEvents_WebviewServer[EventName]>,
 		Response extends ReturnType<s.RPCEvents_WebviewServer[EventName]>,
 	>(eventName: EventName, ...args: Arguments): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'webview',
-			calledTo: 'server',
-			error: null,
-			data: args.length ? args : null,
-			player: null,
-			type: 'event',
-		}
+		const payload = this.request(eventName, 'server', args, null)
 
 		return this._request<Awaited<Response>>(payload)
 	}
@@ -179,25 +133,13 @@ export class RPCInstanceWebview extends Wrapper {
 			...args: CallbackArguments
 		) => Awaited<CallbackReturn> | Promise<Awaited<CallbackReturn>>,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:onSelf ${eventName}`)
-		}
-
-		this._emitterLocal.on(eventName, cb)
-
-		return this
+		return this.listen(this._emitterLocal, 'onSelf', eventName, cb)
 	}
 
 	public offSelf<EventName extends keyof s.RPCEvents_Webview>(
 		eventName: EventName,
 	): this {
-		if (this.debug) {
-			this.console.log(`[RPC]:offSelf ${eventName}`)
-		}
-
-		this._emitterLocal.off(eventName)
-
-		return this
+		return this.unlisten(this._emitterLocal, 'offSelf', eventName)
 	}
 
 	public async emitSelf<
@@ -205,29 +147,7 @@ export class RPCInstanceWebview extends Wrapper {
 		Arguments extends Parameters<s.RPCEvents_Webview[EventName]>,
 		Response extends ReturnType<s.RPCEvents_Webview[EventName]>,
 	>(eventName: EventName, ...args: Arguments): Promise<Awaited<Response>> {
-		const payload: RPCState = {
-			event: eventName,
-			uuid: generateUUID(),
-			calledFrom: 'webview',
-			calledTo: 'webview',
-			error: null,
-			data: args.length ? args : null,
-			player: null,
-			type: 'event',
-		}
-
-		if (this.debug) {
-			this.console.log(
-				`[RPC]:accepted ${payload.event} from ${payload.calledFrom}`,
-			)
-		}
-
-		this.assertListener(this._emitterLocal, payload.event)
-
-		return await this._emitterLocal.emit<Awaited<Response>>(
-			payload.event,
-			...(payload.data && payload.data.length > 0 ? payload.data : []),
-		)
+		return this.emitLocal<Awaited<Response>>(eventName, args)
 	}
 
 	// ===== UTILS =====

rpc/src/index.ts

@@ -1,7 +1,6 @@
 import { RPCInstanceClient } from './core/client'
 import { RPCInstanceServer } from './core/server'
 import { RPCInstanceWebview } from './core/webview'
-import { Wrapper } from './core/wrapper'
 import { RPCError } from './utils/errors'
 import {
 	type RPCConfig,
@@ -27,7 +26,7 @@ import {
  *
  * @class
  */
-class RPCFactory<T extends RPCEnvironment> extends Wrapper {
+class RPCFactory<T extends RPCEnvironment> {
 	private readonly operator:
 		| RPCInstanceServer
 		| RPCInstanceClient
@@ -40,9 +39,7 @@ class RPCFactory<T extends RPCEnvironment> extends Wrapper {
 	 * @param {boolean} opts.debug - Show additional logs
 	 */
 	constructor(opts: RPCConfig<T>) {
-		super(opts)
-
-		this.console.log('[RPC] Initializing...')
+		console.log('[RPC] Initializing...')
 
 		switch (opts.env) {
 			case 'server':

rpc/src/utils/emitter.ts

@@ -4,7 +4,7 @@ import { RPCErrors } from './types'
  * Accepts any callback. Argument types are enforced by the typed `on*`/`emit*`
  * methods that wrap the emitter, not here.
  */
-type Handler = (...args: never[]) => unknown
+export type Handler = (...args: never[]) => unknown
 
 /** One handler per event: registering an event again replaces its handler. */
 export class Emitter {