2022-03-10 05:28:55 +01:00
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import {useNavigate, useParams} from "react-router-dom";
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import {useEffect, useState} from "react";
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import subscriptionManager from "../app/SubscriptionManager";
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import {disallowedTopic, expandSecureUrl, topicUrl} from "../app/utils";
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import notifier from "../app/Notifier";
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import routes from "./routes";
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import connectionManager from "../app/ConnectionManager";
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import poller from "../app/Poller";
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2022-03-11 20:43:54 +01:00
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/**
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* Wire connectionManager and subscriptionManager so that subscriptions are updated when the connection
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* state changes. Conversely, when the subscription changes, the connection is refreshed (which may lead
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* to the connection being re-established).
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*/
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export const useConnectionListeners = (subscriptions, users) => {
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const navigate = useNavigate();
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useEffect(() => {
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const handleNotification = async (subscriptionId, notification) => {
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const added = await subscriptionManager.addNotification(subscriptionId, notification);
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if (added) {
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const defaultClickAction = (subscription) => navigate(routes.forSubscription(subscription));
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await notifier.notify(subscriptionId, notification, defaultClickAction)
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}
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};
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connectionManager.registerStateListener(subscriptionManager.updateState);
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connectionManager.registerNotificationListener(handleNotification);
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return () => {
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connectionManager.resetStateListener();
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connectionManager.resetNotificationListener();
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}
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},
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// We have to disable dep checking for "navigate". This is fine, it never changes.
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// eslint-disable-next-line
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[]
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);
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useEffect(() => {
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connectionManager.refresh(subscriptions, users); // Dangle
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}, [subscriptions, users]);
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2022-03-10 05:28:55 +01:00
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};
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2022-03-11 20:43:54 +01:00
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/**
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* Automatically adds a subscription if we navigate to a page that has not been subscribed to.
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* This will only be run once after the initial page load.
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*/
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2022-03-10 05:28:55 +01:00
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export const useAutoSubscribe = (subscriptions, selected) => {
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2022-03-11 20:43:54 +01:00
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const [hasRun, setHasRun] = useState(false);
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const params = useParams();
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2022-03-10 05:28:55 +01:00
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2022-03-11 20:43:54 +01:00
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useEffect(() => {
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const loaded = subscriptions !== null && subscriptions !== undefined;
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if (!loaded || hasRun) {
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return;
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}
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setHasRun(true);
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const eligible = params.topic && !selected && !disallowedTopic(params.topic);
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if (eligible) {
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const baseUrl = (params.baseUrl) ? expandSecureUrl(params.baseUrl) : window.location.origin;
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console.log(`[App] Auto-subscribing to ${topicUrl(baseUrl, params.topic)}`);
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(async () => {
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const subscription = await subscriptionManager.add(baseUrl, params.topic);
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poller.pollInBackground(subscription); // Dangle!
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})();
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}
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}, [params, subscriptions, selected, hasRun]);
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2022-03-10 05:28:55 +01:00
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};
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2022-03-11 20:43:54 +01:00
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2022-03-11 21:17:12 +01:00
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/**
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* Migrate the 'topics' item in localStorage to the subscriptionManager. This is only done once to migrate away
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* from the old web UI.
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*/
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2022-03-11 20:43:54 +01:00
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export const useLocalStorageMigration = () => {
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const [hasRun, setHasRun] = useState(false);
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useEffect(() => {
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if (hasRun) {
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return;
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}
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const topicsStr = localStorage.getItem("topics");
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if (topicsStr) {
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2022-03-11 21:32:24 +01:00
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const topics = JSON.parse(topicsStr).filter(topic => topic !== "");
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2022-03-11 20:43:54 +01:00
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if (topics.length > 0) {
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(async () => {
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for (const topic of topics) {
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const baseUrl = window.location.origin;
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const subscription = await subscriptionManager.add(baseUrl, topic);
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poller.pollInBackground(subscription); // Dangle!
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}
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localStorage.removeItem("topics");
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})();
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}
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}
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setHasRun(true);
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}, []);
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}
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