react-obsidian/dist/src/observable/useObservers.js

Dependency injection framework for React and React Native applications

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.useObservers = void 0;
const react_1 = require("react");
const MediatorObservable_1 = require("./mediator/MediatorObservable");
const mapObservablesToValues_1 = require("./mapObservablesToValues");
function useObservers(observables) {
    const [values, setValues] = (0, react_1.useState)(() => (0, mapObservablesToValues_1.mapObservablesToValues)(observables));
    (0, react_1.useEffect)(() => {
        const mediator = new MediatorObservable_1.MediatorObservable();
        const unsubscribers = [];
        Object.keys(observables).forEach((key) => {
            const onNext = (value) => setValues({ ...values, [key]: value });
            mediator.addSource(observables[key], onNext);
            unsubscribers.push(() => {
                observables[key].unsubscribe(onNext);
            });
        });
        return () => unsubscribers.forEach((unsubscribe) => unsubscribe());
    }, []);
    return values;
}
exports.useObservers = useObservers;
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