It's a todo list.
Merge pull request #1 from zeucapua/refactor-store
♻️ refactor local storage store
+47
-67
+20
-52
src/lib/stores.svelte.ts
+20
-52
src/lib/stores.svelte.ts
···
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const browser_exists = (typeof window !== "undefined") && (typeof (document) !== "undefined");
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const storage = browser_exists ? localStorage : null;
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// Color Theme (from DaisyUI)
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const initial_theme : string = getInitialTheme();
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// Generalized Local Storage
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function persisted<T>(key: string, default_value: T) {
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let value : T = $state(default_value);
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function getInitialTheme() {
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const initial_local = storage?.getItem("local_theme");
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if (initial_local) {
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console.log("getInitial", initial_local);
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return initial_local
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const initial_local = storage?.getItem(key);
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if (initial_local) {
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try {
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value = JSON.parse(initial_local).value as T;
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if (!value) { update(default_value); }
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}
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catch (e) {
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update(default_value);
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}
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}
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return "default";
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}
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function localTheme() {
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let theme : string = $state(initial_theme);
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function updateTheme(new_theme : string) {
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function update(new_value : T) {
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if (browser_exists) {
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theme = new_theme;
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storage?.setItem("local_theme", theme);
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value = new_value;
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storage?.setItem(key, JSON.stringify({ value }));
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}
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}
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return {
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get theme() { return theme; },
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updateTheme
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get value() { return value; },
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update
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}
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}
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export const color_theme = localTheme();
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// Color Theme (from DaisyUI)
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export const color_theme = persisted<string>("local_theme", "default");
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// Task + Todo List
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export type Task = {
···
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is_completed: boolean;
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}
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const initial_list : Task[] = getInitialList();
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function getInitialList() {
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const initial_local = storage?.getItem("local_todo_list");
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if (initial_local) { return JSON.parse(initial_local) as Task[]; }
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return [];
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}
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function localTodoList() {
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let tasks : Task[] = $state(initial_list);
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function addTask(new_task : Task) {
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tasks.push(new_task);
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}
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function removeTask(id : string) {
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tasks = tasks.filter((t) => t.id !== id);
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}
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function update() {
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if (browser_exists) {
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storage?.setItem("local_todo_list", JSON.stringify(tasks));
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}
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}
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return {
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get tasks() { return tasks; },
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addTask,
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removeTask,
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update
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}
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}
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export const todo_list = localTodoList();
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export const todo_list = persisted<Task[]>("local_todo_list", []);
+2
-2
src/routes/+layout.svelte
+2
-2
src/routes/+layout.svelte
+25
-13
src/routes/+page.svelte
+25
-13
src/routes/+page.svelte
···
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<script lang="ts">
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import { todo_list, type Task } from "$lib/stores.svelte";
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let id = 0;
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$effect(() => console.log(todo_list));
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// TODO: get better ID management
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let id = $state(0);
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let description = $state("");
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function randomizeId() {
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let random_id = id;
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while (todo_list.tasks.find(t => t.id === `${random_id}`)) {
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while (todo_list.value.find(t => t.id === `${random_id}`)) {
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random_id = Math.floor(Math.random() * 100);
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}
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id = random_id;
···
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function addTask() {
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randomizeId();
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todo_list.addTask({
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id: `${id}`,
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description,
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is_completed: false
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});
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todo_list.update(
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[...todo_list.value, {
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id: `${id}`,
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description,
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is_completed: false
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}]
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);
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description = "";
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}
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$effect(() => todo_list.update());
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function removeTask(id: string) {
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todo_list.update(
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todo_list.value.filter((t) => t.id !== id)
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);
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}
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// update when tasks change (description, is_completed)
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$effect(() => todo_list.update(todo_list.value));
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</script>
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<ul class="flex flex-col gap-8 overflow-y-scroll h-full max-h-[48rem] p-2">
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{#each todo_list.tasks as task : Task}
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{#each todo_list.value as task : Task}
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<li class="group flex gap-4 items-center">
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<input
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type="checkbox"
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class={`text-lg lg:text-xl input lg:input-lg w-full max-w-lg ${task.is_completed && "line-through"}`}
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/>
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<button
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onclick={() => todo_list.removeTask(task.id)}
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onclick={() => removeTask(task.id)}
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class="lg:invisible lg:group-hover:visible btn btn-error"
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>
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<img
···
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</ul>
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<form onsubmit={addTask} class="flex gap-4">
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<section class="flex gap-4">
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<input
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type="text"
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bind:value={description}
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class="text-lg lg:text-xl input input-bordered lg:input-lg w-full max-w-lg"
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/>
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<button class="btn lg:btn-lg btn-primary">Add</button>
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</form>
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<button onclick={addTask} class="btn lg:btn-lg btn-primary">Add</button>
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</section>
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