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ActrRef as NativeActrRef,
ActrId,
ActrType,
PayloadType,
} from '../index';
import { callNative } from './error';
/**
* ActrRef – reference to a running actor.
*
* Provides methods to interact with the actor: RPC calls, messaging, discovery, etc.
*/
export class ActrRef {
constructor(private native: NativeActrRef) {}
/**
* Get the actor ID.
*
* @returns The actor's unique identifier
*/
actorId(): ActrId {
return this.native.actorId();
}
/**
* Discover actors of the given type.
*
* @param targetType - Target actor type (manufacturer + name)
* @param count - Number of actors to discover
* @returns List of actor IDs
*
* @example
* ```typescript
* const servers = await actorRef.discover(
* { manufacturer: 'acme', name: 'EchoTwiceService' },
* 1
* );
* ```
*/
async discover(targetType: ActrType, count: number): Promise<ActrId[]> {
return await callNative(() => this.native.discover(targetType, count));
}
/**
* Call remote actor (RPC).
*
* @param target - Target actor ID
* @param routeKey - Route key (e.g. 'service.Method')
* @param payloadType - Payload type
* @param requestPayload - Request payload (protobuf-encoded)
* @param timeoutMs - Timeout in ms, default 30000
* @returns Response payload
*
* @example
* ```typescript
* const request = Buffer.from('Hello');
* const response = await actorRef.call(
* serverId,
* 'echo_twice.EchoTwiceService.EchoTwice',
* PayloadType.RpcReliable,
* request,
* 5000
* );
* ```
*/
async call(
target: ActrId,
routeKey: string,
payloadType: PayloadType,
requestPayload: Buffer,
timeoutMs: number = 30000,
): Promise<Buffer> {
return await callNative(() =>
this.native.call(
target,
routeKey,
payloadType,
requestPayload,
timeoutMs,
),
);
}
/**
* Type-safe RPC call using Protobuf messages.
*
* @param routeKey - Route key
* @param request - Request object (must have encode() method)
* @param responseType - Response type (must have decode() method)
* @param payloadType - Payload type, default RpcReliable
* @param timeoutMs - Timeout in ms, default 30000
* @returns Decoded response object
*
* @example
* ```typescript
* import { EchoTwiceRequest, EchoTwiceResponse } from './proto/echo-twice';
*
* const request = new EchoTwiceRequest({ message: 'Hello' });
* const response = await actorRef.callTyped(
* serverId,
* 'echo_twice.EchoTwiceService.EchoTwice',
* request,
* EchoTwiceResponse,
* PayloadType.RpcReliable,
* 5000
* );
* console.log(response.message);
* ```
*/
async callTyped<Req, Res>(
target: ActrId,
routeKey: string,
request: Req & EncodableRequest,
responseType: { decode: (buf: Buffer) => Res },
payloadType: PayloadType = PayloadType.RpcReliable,
timeoutMs: number = 30000,
): Promise<Res> {
const requestBuf = request.encode();
const responseBuf = await this.call(
target,
routeKey,
payloadType,
requestBuf,
timeoutMs,
);
return responseType.decode(responseBuf);
}
/**
* Send one-way message (fire-and-forget).
*
* @param target - Target actor ID
* @param routeKey - Route key
* @param payloadType - Payload type
* @param messagePayload - Message payload
*
* @example
* ```typescript
* await actorRef.tell(
* serverId,
* 'notification.Service/Notify',
* PayloadType.RpcSignal,
* Buffer.from('Event occurred')
* );
* ```
*/
async tell(
target: ActrId,
routeKey: string,
payloadType: PayloadType,
messagePayload: Buffer,
): Promise<void> {
await callNative(() =>
this.native.tell(target, routeKey, payloadType, messagePayload),
);
}
/**
* Trigger shutdown.
*
* Starts the shutdown process but does not wait for completion.
*/
shutdown(): void {
this.native.shutdown();
}
/**
* Wait for shutdown to complete.
*
* Blocks until the actor has fully shut down.
*/
async waitForShutdown(): Promise<void> {
await this.native.waitForShutdown();
}
/**
* Check if shutdown is in progress.
*
* @returns true if shutting down
*/
isShuttingDown(): boolean {
return this.native.isShuttingDown();
}
/**
* Stop the actor (shutdown and wait).
*
* Convenience for shutdown() + waitForShutdown().
*
* @example
* ```typescript
* await actorRef.stop();
* console.log('Actor stopped');
* ```
*/
async stop(): Promise<void> {
this.shutdown();
await this.waitForShutdown();
}
}
type EncodableRequest = {
encode(): Buffer;
};
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