sveltekit-flash-message/dist/router.js

Send temporary data to the next request after redirect. Works with both SSR and client.

/* eslint-disable @typescript-eslint/no-non-null-assertion */
import { writable } from 'svelte/store';
import { FlashMessage } from './flashMessage.js';
import { mergeOptions } from './options.js';
import { onDestroy } from 'svelte';
export class FlashRouter {
    routes = new Map();
    messageStore;
    constructor() {
        this.messageStore = writable();
        this.routes.set('', new FlashMessage(this.messageStore));
        onDestroy(() => {
            for (const route of this.routes.values()) {
                clearTimeout(route.flashTimeout);
            }
        });
    }
    get defaultRoute() {
        return this.routes.get('');
    }
    has(routeId) {
        return this.routes.has(routeId);
    }
    getFlashMessage(routeId) {
        if (!routeId)
            return this.defaultRoute;
        if (this.routes.has(routeId))
            return this.routes.get(routeId);
        return this.getClosestRoute(routeId);
    }
    getClosestRoute(routeId) {
        const matchingRoutes = Array.from(this.routes.keys()).filter((key) => routeId.includes(key));
        if (!matchingRoutes.length) {
            return this.defaultRoute;
        }
        const longestRoute = matchingRoutes.reduce((prev, curr) => curr.length > prev.length ? curr : prev);
        return this.routes.get(longestRoute);
    }
    createRoute(routeId, data, options) {
        const closest = this.getClosestRoute(routeId);
        const newRoute = new FlashMessage(this.messageStore, mergeOptions(closest.options, options));
        // Update flash data
        newRoute.message.set(data);
        this.routes.set(routeId, newRoute);
        return newRoute;
    }
}