import type { PreviewAutomationRequest, PreviewAutomationResponse } from "@t3tools/contracts";import { AsyncResult, Atom } from "effect/unstable/reactivity"; type AutomationRequestResult<E> = AsyncResult.AsyncResult<PreviewAutomationRequest, E>;type AutomationRequestHandler = (request: PreviewAutomationRequest) => Promise<unknown>; export function createLatestPreviewAutomationRequestHandler(initial: AutomationRequestHandler): { readonly set: (handler: AutomationRequestHandler) => void; readonly handle: AutomationRequestHandler;} { let current = initial; return { set: (handler) => { current = handler; }, handle: (request) => current(request), };} export function serializePreviewAutomationError( error: unknown,): NonNullable<PreviewAutomationResponse["error"]> { if (error instanceof Error) { const explicitDetail = "detail" in error && (error as { detail?: unknown }).detail !== undefined ? (error as { detail?: unknown }).detail : undefined; const structuralDetail = "_tag" in error && typeof (error as { _tag?: unknown })._tag === "string" && (error as { _tag: string })._tag.startsWith("PreviewAutomation") ? Object.fromEntries( Object.entries(error).filter( ([key]) => key !== "_tag" && key !== "cause" && key !== "name" && key !== "message" && key !== "stack" && key !== "detail" && key !== "responseTag", ), ) : undefined; const detail = explicitDetail ?? structuralDetail; const responseTag = "responseTag" in error && typeof (error as { responseTag?: unknown }).responseTag === "string" && (error as { responseTag: string }).responseTag.startsWith("PreviewAutomation") ? (error as { responseTag: string }).responseTag : undefined; return { _tag: responseTag ?? (error.name.startsWith("PreviewAutomation") ? error.name : "PreviewAutomationExecutionError"), message: error.message, ...(detail === undefined ? {} : { detail }), }; } return { _tag: "PreviewAutomationExecutionError", message: String(error), };} export function createPreviewAutomationRequestConsumerAtom<E>(options: { readonly requestsAtom: Atom.Atom<AutomationRequestResult<E>>; readonly handleRequest: (request: PreviewAutomationRequest) => Promise<unknown>; readonly respond: (response: PreviewAutomationResponse) => Promise<unknown>; readonly label: string;}): Atom.Atom<void> { return Atom.make((get) => { let disposed = false; let requestsVersion = 0; const consume = (result: AutomationRequestResult<E>) => { if (!AsyncResult.isSuccess(result)) return; const request = result.value; void options.handleRequest(request).then( (value) => options.respond({ requestId: request.requestId, ok: true, ...(value === undefined ? {} : { result: value }), }), (error) => options.respond({ requestId: request.requestId, ok: false, error: serializePreviewAutomationError(error), }), ); }; get.addFinalizer(() => { disposed = true; }); const initialRequest = get.once(options.requestsAtom); get.subscribe(options.requestsAtom, (result) => { requestsVersion += 1; consume(result); }); queueMicrotask(() => { if (!disposed && requestsVersion === 0) consume(initialRequest); }); }).pipe(Atom.setIdleTTL(0), Atom.withLabel(options.label));}
import type { PreviewAutomationRequest, PreviewAutomationResponse } from "@t3tools/contracts";
import { AsyncResult, Atom } from "effect/unstable/reactivity";
type AutomationRequestResult<E> = AsyncResult.AsyncResult<PreviewAutomationRequest, E>;
type AutomationRequestHandler = (request: PreviewAutomationRequest) => Promise<unknown>;
export function createLatestPreviewAutomationRequestHandler(initial: AutomationRequestHandler): {
readonly set: (handler: AutomationRequestHandler) => void;
readonly handle: AutomationRequestHandler;
} {
let current = initial;
return {
set: (handler) => {
current = handler;
},
handle: (request) => current(request),
};
}
export function serializePreviewAutomationError(
error: unknown,
): NonNullable<PreviewAutomationResponse["error"]> {
if (error instanceof Error) {
const explicitDetail =
"detail" in error && (error as { detail?: unknown }).detail !== undefined
? (error as { detail?: unknown }).detail
: undefined;
const structuralDetail =
"_tag" in error &&
typeof (error as { _tag?: unknown })._tag === "string" &&
(error as { _tag: string })._tag.startsWith("PreviewAutomation")
? Object.fromEntries(
Object.entries(error).filter(
([key]) =>
key !== "_tag" &&
key !== "cause" &&
key !== "name" &&
key !== "message" &&
key !== "stack" &&
key !== "detail" &&
key !== "responseTag",
),
)
: undefined;
const detail = explicitDetail ?? structuralDetail;
const responseTag =
"responseTag" in error &&
typeof (error as { responseTag?: unknown }).responseTag === "string" &&
(error as { responseTag: string }).responseTag.startsWith("PreviewAutomation")
? (error as { responseTag: string }).responseTag
: undefined;
return {
_tag:
responseTag ??
(error.name.startsWith("PreviewAutomation")
? error.name
: "PreviewAutomationExecutionError"),
message: error.message,
...(detail === undefined ? {} : { detail }),
};
}
return {
_tag: "PreviewAutomationExecutionError",
message: String(error),
};
}
export function createPreviewAutomationRequestConsumerAtom<E>(options: {
readonly requestsAtom: Atom.Atom<AutomationRequestResult<E>>;
readonly handleRequest: (request: PreviewAutomationRequest) => Promise<unknown>;
readonly respond: (response: PreviewAutomationResponse) => Promise<unknown>;
readonly label: string;
}): Atom.Atom<void> {
return Atom.make((get) => {
let disposed = false;
let requestsVersion = 0;
const consume = (result: AutomationRequestResult<E>) => {
if (!AsyncResult.isSuccess(result)) return;
const request = result.value;
void options.handleRequest(request).then(
(value) =>
options.respond({
requestId: request.requestId,
ok: true,
...(value === undefined ? {} : { result: value }),
}),
(error) =>
options.respond({
requestId: request.requestId,
ok: false,
error: serializePreviewAutomationError(error),
}),
);
};
get.addFinalizer(() => {
disposed = true;
});
const initialRequest = get.once(options.requestsAtom);
get.subscribe(options.requestsAtom, (result) => {
requestsVersion += 1;
consume(result);
});
queueMicrotask(() => {
if (!disposed && requestsVersion === 0) consume(initialRequest);
});
}).pipe(Atom.setIdleTTL(0), Atom.withLabel(options.label));
}