import type {  PreviewAutomationHost,  PreviewAutomationRequest,  PreviewAutomationResponse,  PreviewAutomationStreamEvent,} from "@t3tools/contracts";import { AsyncResult, Atom } from "effect/unstable/reactivity"; import {  PreviewAutomationOperationError,  type PreviewAutomationOperationContext,  serializePreviewAutomationHostError,} from "./previewAutomationErrors"; type AutomationStreamResult<E> = AsyncResult.AsyncResult<PreviewAutomationStreamEvent, E>; export function serializePreviewAutomationError(  error: unknown,  context: PreviewAutomationOperationContext,): NonNullable<PreviewAutomationResponse["error"]> {  return serializePreviewAutomationHostError(    PreviewAutomationOperationError.fromCause({ ...context, cause: error }),  );} export function createPreviewAutomationRequestConsumerAtom<E>(options: {  readonly requestsAtom: Atom.Atom<AutomationStreamResult<E>>;  readonly clientId: PreviewAutomationHost["clientId"];  readonly connectionAtom: Atom.Writable<PreviewAutomationStreamEvent["connectionId"] | null>;  readonly environmentId: PreviewAutomationHost["environmentId"];  readonly requestHandlerAtom: Atom.Atom<{    readonly handle: (request: PreviewAutomationRequest) => Promise<unknown>;  }>;  readonly respond: (response: PreviewAutomationResponse) => Promise<unknown>;  readonly label: string;}): Atom.Atom<void> {  return Atom.make((get) => {    get.mount(options.connectionAtom);    get.mount(options.requestHandlerAtom);    let disposed = false;    let activeConnectionId: PreviewAutomationStreamEvent["connectionId"] | null = null;    let connectionExplicitlyAnnounced = false;    let reportedConnectionId: PreviewAutomationStreamEvent["connectionId"] | null = null;    let requestsVersion = 0;     const consume = (result: AutomationStreamResult<E>) => {      if (!AsyncResult.isSuccess(result)) return;      const event = result.value;      if (event.type === "connected") {        activeConnectionId = event.connectionId;        connectionExplicitlyAnnounced = true;      } else if (activeConnectionId === null) {        activeConnectionId = event.connectionId;      } else if (activeConnectionId !== event.connectionId) {        if (connectionExplicitlyAnnounced) return;        activeConnectionId = event.connectionId;      }      if (reportedConnectionId !== event.connectionId) {        reportedConnectionId = event.connectionId;        get.set(options.connectionAtom, event.connectionId);      }      if (event.type === "connected") {        return;      }      const request = event.request;      void get        .once(options.requestHandlerAtom)        .handle(request)        .then(          (value) =>            options.respond({              clientId: options.clientId,              connectionId: event.connectionId,              requestId: request.requestId,              ok: true,              ...(value === undefined ? {} : { result: value }),            }),          (error) =>            options.respond({              clientId: options.clientId,              connectionId: event.connectionId,              requestId: request.requestId,              ok: false,              error: serializePreviewAutomationError(error, {                requestId: request.requestId,                operation: request.operation,                environmentId: options.environmentId,                threadId: request.threadId,                tabId: request.tabId ?? null,              }),            }),        );    };     get.addFinalizer(() => {      disposed = true;    });    const initialRequest = get.once(options.requestsAtom);    if (AsyncResult.isSuccess(initialRequest)) {      activeConnectionId = initialRequest.value.connectionId;      connectionExplicitlyAnnounced = initialRequest.value.type === "connected";      if (initialRequest.value.type === "connected") {        reportedConnectionId = initialRequest.value.connectionId;        get.set(options.connectionAtom, initialRequest.value.connectionId);      }    }    get.subscribe(options.requestsAtom, (result) => {      requestsVersion += 1;      consume(result);    });    queueMicrotask(() => {      const initialConnectionWasSkipped =        AsyncResult.isSuccess(initialRequest) &&        initialRequest.value.connectionId === activeConnectionId &&        initialRequest.value.connectionId !== reportedConnectionId;      if (!disposed && (requestsVersion === 0 || initialConnectionWasSkipped)) {        consume(initialRequest);      }    });  }).pipe(Atom.setIdleTTL(0), Atom.withLabel(options.label));}