@gleif-it/did-webs-ts/dist/cjs/utils/cesr/getDelegatorForDelegate.js

did-webs typescript library

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getDelegatorForDelegate = void 0;
const Aid_js_1 = require("../../core/Aid.js");
const sortKeyEventStream_js_1 = require("./sortKeyEventStream.js");
const getKeyState_js_1 = require("./getKeyState.js");
const getDelegatorForDelegate = (delegate, events) => {
    // start with the event stream for the delegate
    const sortedEvents = (0, sortKeyEventStream_js_1.sortKeyEventStream)(events);
    const delegateEvents = sortedEvents.get(delegate);
    if (!delegateEvents || delegateEvents.length === 0) {
        throw new Error(`No events found for identifier: ${delegate}`);
    }
    // To find the delegator, filter events to only include 'dip' events
    // There might not be one, so we return undefined
    const validEvents = delegateEvents.filter((event) => event.t === 'dip');
    if (validEvents.length === 0)
        return undefined;
    // Since sortedEvents are in descending order, the first valid event is the current key state
    const latestEvent = validEvents[0];
    const delegatorAid = (0, Aid_js_1.createAid)(latestEvent.di); // if it's a 'dip' event, the 'di' field will be there
    // Get the latest key state for the delegator AID
    const delegatorIdentifierAndKeyState = (0, getKeyState_js_1.getKeyState)(delegatorAid, sortedEvents);
    if (!delegatorIdentifierAndKeyState) {
        throw new Error(`No key state found for delegator AID: ${delegatorAid}`);
    }
    return delegatorIdentifierAndKeyState;
};
exports.getDelegatorForDelegate = getDelegatorForDelegate;