z-ipc/build/index.js

Z-IPC is an easy-to-use, extensible and fully type-safe IPC solution for JavaScript environments.

// src/core/adapter.ts
function defineAdapter(adapter) {
  return adapter;
}

// src/core/rpc-error.ts
var RpcError = class extends Error {
  constructor(message, remoteStack) {
    super(message);
    this.remoteStack = remoteStack;
  }
};

// src/core/client.ts
function createClient(adapter) {
  const eventListeners = /* @__PURE__ */ new Map();
  adapter.subscribe((message) => {
    if (message.kind !== "event") return;
    const listeners = eventListeners.get(message.name);
    if (!listeners) return;
    for (const listener of listeners) {
      listener(message.payload);
    }
  });
  return {
    protocol: void 0,
    call: (method, ...args) => {
      const id = Math.random();
      return new Promise((resolve, reject) => {
        const responseListener = (response) => {
          if (response.kind !== "rpc-response") return;
          if (response.id !== id) return;
          adapter.unsubscribe(responseListener);
          if (response.result.error) {
            reject(
              new RpcError(
                response.result.message,
                response.result.stack
              )
            );
          } else {
            resolve(response.result.value);
          }
        };
        adapter.subscribe(responseListener);
        adapter.publish({
          kind: "rpc-request",
          id,
          method,
          args
        });
      });
    },
    subscribe: (event, listener) => {
      if (!eventListeners.has(event)) {
        eventListeners.set(event, /* @__PURE__ */ new Set());
      }
      const listeners = eventListeners.get(event);
      listeners.add(listener);
    },
    unsubscribe: (event, listener) => {
      if (!eventListeners.has(event)) {
        return;
      }
      const listeners = eventListeners.get(event);
      listeners.delete(listener);
      if (listeners.size === 0) {
        eventListeners.delete(event);
      }
    }
  };
}

// src/core/message.ts
function createOkResponse(id, value) {
  return {
    kind: "rpc-response",
    id,
    result: {
      error: false,
      value
    }
  };
}
function createErrorResponse(id, error) {
  return {
    kind: "rpc-response",
    id,
    result: {
      error: true,
      message: error.message,
      stack: error.stack ?? "???"
    }
  };
}

// src/core/protocol.ts
function defineMethod(handler) {
  return {
    kind: "method",
    handler
  };
}
function defineEvent() {
  return {
    kind: "event"
  };
}

// src/core/server.ts
function createServer(adapter, protocol) {
  adapter.subscribe(async (message) => {
    if (message.kind !== "rpc-request") {
      return;
    }
    const method = protocol[message.method];
    if (!method || method.kind !== "method") {
      adapter.publish(
        createErrorResponse(message.id, new TypeError("Unknown method"))
      );
      return;
    }
    try {
      const result = await method.handler(...message.args);
      adapter.publish(createOkResponse(message.id, result));
    } catch (error) {
      console.error(error);
      if (error instanceof Error) {
        adapter.publish(createErrorResponse(message.id, error));
      } else {
        adapter.publish(
          createErrorResponse(message.id, new Error("Unknown error"))
        );
      }
    }
  });
  return {
    protocol,
    emit: (event, payload) => {
      adapter.publish({
        kind: "event",
        name: event,
        payload
      });
    }
  };
}
export {
  RpcError,
  createClient,
  createErrorResponse,
  createOkResponse,
  createServer,
  defineAdapter,
  defineEvent,
  defineMethod
};