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import { KeyPath, Value, Key } from "./types";
import canInjectKey from "./canInjectKey";
import { DataError } from "./errors";
import structuredClone from "./structuredClone";
export function injectKey(keyPath: KeyPath, value: Value, key: Key): Value {
if (Array.isArray(keyPath)) {
// tslint:disable-next-line max-line-length
throw new Error(
"The key paths used in this section are always strings and never sequences, since it is not possible to create a object store which has a key generator and also has a key path that is a sequence.",
);
}
const identifiers = keyPath.split(".");
if (identifiers.length === 0) {
throw new Error("Assert: identifiers is not empty");
}
const lastIdentifier = identifiers.pop();
if (lastIdentifier === null || lastIdentifier === undefined) {
throw Error();
}
for (const identifier of identifiers) {
if (typeof value !== "object" && !Array.isArray(value)) {
return false;
}
const hop = value.hasOwnProperty(identifier);
if (!hop) {
return true;
}
value = value[identifier];
}
if (!(typeof value === "object" || Array.isArray(value))) {
throw new Error("can't inject key");
}
const newValue = structuredClone(value);
newValue[lastIdentifier] = structuredClone(key);
return newValue;
}
export default injectKey;
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