Init back project

front/src/lib/stores/scoreStore.ts

@@ -0,0 +1,34 @@
+import {writable} from "svelte/store";
+import {Score} from "../models/score";
+import {browser} from "$app/environment"
+
+let localStorageKey = "scores"
+
+function isBrowser() {
+    return typeof window !== 'undefined' && typeof window.localStorage !== 'undefined';
+}
+
+function createStore(){
+
+    const storedValue = isBrowser() ? localStorage.getItem(localStorageKey) : null;
+
+    const { set, update, subscribe } = writable<Score[]>(!storedValue ? [] : JSON.parse(storedValue));
+
+    if (isBrowser()) subscribe(value => localStorage.setItem(localStorageKey, JSON.stringify(value)));
+
+    return {
+        update,
+        subscribe,
+        set : (value : Score[]) => set(!value ? [] : value),
+        reset : () => set([]),
+        add : (playerName : string, value : number) =>  {
+            update(scores => {
+                let s = [...scores, new Score({playerName : playerName, value : value})];
+                if(s.length >= 2) s.sort((s1 : Score, s2 : Score) =>  s1.value - s2.value)
+                return s;
+            });
+        }
+    };
+}
+
+export const scoreStore = createStore();