From 6561771c435f9d9bed1589b5ed13d17aee0b7873 Mon Sep 17 00:00:00 2001
From: ivarlovlie <git@ivarlovlie.no>
Date: Sun, 11 Dec 2022 20:46:58 +0100
Subject: feat: Add frontpage

---
 code/app/src/help/persistent-store.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'code/app/src/help')

diff --git a/code/app/src/help/persistent-store.ts b/code/app/src/help/persistent-store.ts
index f2c14c9..6a54282 100644
--- a/code/app/src/help/persistent-store.ts
+++ b/code/app/src/help/persistent-store.ts
@@ -1,3 +1,4 @@
+import {browser} from "$app/environment";
 import {writable as _writable, readable as _readable} from "svelte/store";
 import type {Writable, Readable, StartStopNotifier} from "svelte/store";
 
@@ -28,6 +29,7 @@ interface ReadableStore<T> {
 }
 
 function get_store(type: StoreType): Storage {
+    if (!browser) return undefined;
     switch (type) {
         case StoreType.SESSION:
             return window.sessionStorage;
@@ -48,6 +50,7 @@ function prepared_store_value(value: any): string {
 function get_store_value<T>(options: WritableStore<T> | ReadableStore<T>): any {
     try {
         const storage = get_store(options.options.store);
+        if (!storage) return;
         const value = storage.getItem(options.name);
         if (!value) return false;
         return JSON.parse(value);
@@ -64,6 +67,7 @@ function hydrate<T>(store: Writable<T>, options: WritableStore<T> | ReadableStor
 
 function subscribe<T>(store: Writable<T> | Readable<T>, options: WritableStore<T> | ReadableStore<T>): void {
     const storage = get_store(options.options.store);
+    if (!storage) return;
     if (!store.subscribe) return;
     store.subscribe((state: any) => {
         storage.setItem(options.name, prepared_store_value(state));
@@ -71,6 +75,10 @@ function subscribe<T>(store: Writable<T> | Readable<T>, options: WritableStore<T
 }
 
 function writable_persistent<T>(options: WritableStore<T>): Writable<T> {
+    if (!browser) {
+        console.warn("Persistent store is only available in the browser");
+        return;
+    }
     if (options.options === undefined) options.options = default_store_options;
     console.log("Creating writable store with options: ", options);
     const store = _writable<T>(options.initialState);
@@ -80,6 +88,10 @@ function writable_persistent<T>(options: WritableStore<T>): Writable<T> {
 }
 
 function readable_persistent<T>(options: ReadableStore<T>): Readable<T> {
+    if (!browser) {
+        console.warn("Persistent store is only available in the browser");
+        return;
+    }
     if (options.options === undefined) options.options = default_store_options;
     console.log("Creating readable store with options: ", options);
     const store = _readable<T>(options.initialState, options.callback);
-- 
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