jellyfin-media-player/native/jmpUpdatePlugin.js

class jmpUpdatePlugin {
    constructor({ confirm, toast }) {
        this.name = 'JMP Update Plugin';
        this.type = 'input';
        this.id = 'jmpUpdatePlugin';

        (async () => {
            const api = await window.apiPromise;

            const checkForUpdates = await new Promise(resolve => {
                api.settings.value("main", "checkForUpdates", resolve);
            });

            if (!checkForUpdates) return;

            const checkUrl = "https://github.com/jellyfin/jellyfin-media-player/releases/latest";
            const url = (await fetch(checkUrl)).url;

            const urlSegments = url.split("/");
            const version = urlSegments[urlSegments.length - 1].substring(1);
            const currentVersion = navigator.userAgent.split(" ")[1];

            if (version == currentVersion) return;
            if (!/^[0-9.-]+$/.test(version)) return;

            try {
                await confirm({
                    title: "Update Available",
                    text: `Jellyfin Media Player version ${version} is available.`,
                    cancelText: "Ignore",
                    confirmText: "Download"
                });

                api.system.openExternalUrl(url);
            } catch (e) {
                // User cancelled update
            }
        })();
    }
}

window._jmpUpdatePlugin = jmpUpdatePlugin;