/** @odoo-module **/
    import { jsonrpc } from "@web/core/network/rpc_service";
    /**
     * Odoo module for handling Firebase push notifications.
     *
     * This module initializes Firebase messaging and handles push notifications
     * for the current session's company. It also registers the service worker for
     * handling notifications if the company has push notifications enabled.
     *
     * @module mail_push_notification
     */
    var vapid = '';
    var firebaseConfig = {};
    var push_notification = false;
    /**
     * Sends an RPC query to retrieve push notification settings for the current company.
     *
     * @function
     * @returns {Promise} A promise that resolves with the push notification settings.
     */
    jsonrpc("/firebase_credentials", {}).then(function(data) {
       if (data) {
            if (data.push_notification) {
                push_notification = true;
                if ("serviceWorker" in navigator) {
                    navigator.serviceWorker.register("/firebase-messaging-sw.js").then(function () {});
            }
       }
    }
        });
    jsonrpc("/firebase_config_details", {}).then(function (data) {
        if (data) {
            var json = JSON.parse(data);
            vapid = json.vapid;
            firebaseConfig = json.config;
            /**
             * Initializes Firebase messaging and sets up event listeners for incoming messages.
             *
             * @function
             */
            firebase.initializeApp(firebaseConfig);
            const messaging = firebase.messaging();
            /**
             * Handles incoming push notification messages.
             *
             * @function
             * @param {Object} payload - The notification payload.
             */
            messaging.onMessage((payload) => {
                const notificationOptions = {
                    body: payload.notification.body,
                };
                let notification = payload.notification;
                navigator.serviceWorker.getRegistrations().then((registration) => {
                    registration[0].showNotification(notification.title, notificationOptions);
                });
            });
            /**
             * Requests permission for receiving push notifications and retrieves the registration token.
             *
             * @function
             */
            messaging.requestPermission().then(function () {
            /**
             * Retrieves the registration token and sends it to the server for subscription.
             *
             * @function
             * @param {string} vapidKey - The VAPID key for authentication.
             */
                messaging.getToken({ vapidKey: vapid }).then((currentToken) => {
                    if (currentToken) {
                        /**
                         * Sends a POST request to the server with the registration token.
                         *
                         * @function
                         * @param {string} token - The registration token.
                         */
                        $.post("/push_notification", {
                            name: currentToken
                        });
                    } else {
                        console.log('No registration token found');
                    }
                }).catch((err) => {
                    console.log('There is an error has occurred while attempting to retrieve the token.', err);
                });
            });
        }
    });