@grafana/faro-core/dist/cjs/metas/initialize.js

Core package of Faro.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.initializeMetas = initializeMetas;
const utils_1 = require("../utils");
function initializeMetas(_unpatchedConsole, internalLogger, _config) {
    let items = [];
    let listeners = [];
    const getValue = () => items.reduce((acc, item) => Object.assign(acc, (0, utils_1.isFunction)(item) ? item() : item), {});
    const notifyListeners = () => {
        if (listeners.length) {
            const value = getValue();
            listeners.forEach((listener) => listener(value));
        }
    };
    const add = (...newItems) => {
        internalLogger.debug('Adding metas\n', newItems);
        items.push(...newItems);
        notifyListeners();
    };
    const remove = (...itemsToRemove) => {
        internalLogger.debug('Removing metas\n', itemsToRemove);
        items = items.filter((currentItem) => !itemsToRemove.includes(currentItem));
        notifyListeners();
    };
    const addListener = (listener) => {
        internalLogger.debug('Adding metas listener\n', listener);
        listeners.push(listener);
    };
    const removeListener = (listener) => {
        internalLogger.debug('Removing metas listener\n', listener);
        listeners = listeners.filter((currentListener) => currentListener !== listener);
    };
    return {
        add,
        remove,
        addListener,
        removeListener,
        get value() {
            return getValue();
        },
    };
}
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