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import { createNewSetProxy, type SetProxy } from "@ldo/jsonld-dataset-proxy";
import type { TrackingProxyContext } from "./TrackingProxyContext.js";
import type { QuadMatch } from "@ldo/rdf-utils";
/**
* @internal
*
* Creates a tracking proxy for a set, a proxy that tracks the fields that have
* been accessed.
*/
export function createTrackingSetProxy(
proxyContext: TrackingProxyContext,
quadMatch: QuadMatch,
isSubjectOriented?: boolean,
isLangStringSet?: boolean,
): SetProxy {
const baseSetProxy = createNewSetProxy(
quadMatch,
isSubjectOriented ?? false,
proxyContext,
isLangStringSet,
);
return new Proxy(baseSetProxy, {
get: (target: SetProxy, key: string | symbol, receiver) => {
if (trackingMethods.has(key)) {
proxyContext.addListener(quadMatch);
} else if (disallowedMethods.has(key)) {
console.warn(
"You've attempted to modify a value on a Linked Data Object from the useSubject, useMatchingSubject, or useMatchingObject hooks. These linked data objects should only be used to render data, not modify it. To modify data, use the `changeData` function.",
);
}
return Reflect.get(target, key, receiver);
},
});
}
const trackingMethods = new Set([
"has",
"size",
"entries",
"keys",
"values",
Symbol.iterator,
"every",
"every",
"some",
"forEach",
"map",
"reduce",
"toArray",
"toJSON",
"difference",
"intersection",
"isDisjointFrom",
"isSubsetOf",
"isSupersetOf",
"symmetricDifference",
"union",
]);
const disallowedMethods = new Set<string | symbol>(["add", "clear", "delete"]);