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.env
node_modules
public/lib
/data

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FROM node:22
WORKDIR /fff
COPY public ./public
COPY src ./src
COPY *.json .
RUN npm install
RUN npm run build
VOLUME ./data
CMD ["npm", "start"]

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# flip-flip-flip
le code source de l’app [https://flip-flip-flip.fr/](https://flip-flip-flip.fr/)
## installation locale de développement
cloner ce dépôt git, créer un fichier `.env` contenant :
```
FFF_PORT=3000
FFF_JWT_SECRET="a random string"
```
puis exécuter les commandes :
```
npm install
npm run start:dev
```
## déploiement
en utilisant l’image docker publiée, exemple de `docker-compose.yml` :
```yaml
services:
fff:
container_name: fff
image: "codeberg.org/tma_ztf/flip-flip-flip:latest"
volumes:
- /path/to/fff/data:/fff/data
environment:
FFF_JWT_SECRET: "a random string"
restart: unless-stopped
```
cela crée un serveur http écoutant le port 80, il faut aussi avoir un serveur web jouant le rôle de reverse proxy pour gérer le https (par exemple nginx ou caddy)
pas de numéros de versions tant que ce ne sera pas nécessaire.
## principes de développement
l’idée de ce code est de pouvoir le laisser pendant de longues périodes de temps sans besoin de maintenance, puis pouvoir le reprendre pour le modifier sans avoir à passer par une phase de mise à niveau.
j’essaye donc de limiter le recours aux dépendances et aux outils de build.
côté back-end : aucun build nécessaire grâce au support natif de typescript par node.
côté front-end : j’utilise [lit](https://lit.dev/) pour écrire facilement des composants web natifs, cela ne nécessite pas de build mais je n’ai pas pu me résoudre à abandonner typescript, il y a donc tout de même besoin de lancer `tsc` pour générer les sources front mais je n’utilise pas les décorateurs pour garder cette couche la plus basique possible.
toutes les ressources sont servies localement : polices d’écriture, images, ou librairies tierces.

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/* generated with https://gwfh.mranftl.com */
/* averia-serif-libre-regular - latin */
@font-face {
font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: "Averia Serif Libre";
font-style: normal;
font-weight: 400;
src: url("averia-serif-libre-v19-latin-regular.woff2") format("woff2"); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* averia-serif-libre-italic - latin */
@font-face {
font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: "Averia Serif Libre";
font-style: italic;
font-weight: 400;
src: url("averia-serif-libre-v19-latin-italic.woff2") format("woff2"); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* averia-serif-libre-700 - latin */
@font-face {
font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: "Averia Serif Libre";
font-style: normal;
font-weight: 700;
src: url("averia-serif-libre-v19-latin-700.woff2") format("woff2"); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* averia-serif-libre-700italic - latin */
@font-face {
font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: "Averia Serif Libre";
font-style: italic;
font-weight: 700;
src: url("averia-serif-libre-v19-latin-700italic.woff2") format("woff2"); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* lato-regular - latin_latin-ext */
@font-face {
font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: "Lato";
font-style: normal;
font-weight: 400;
src: url("lato-v25-latin_latin-ext-regular.woff2") format("woff2"); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* lato-italic - latin_latin-ext */
@font-face {
font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: "Lato";
font-style: italic;
font-weight: 400;
src: url("lato-v25-latin_latin-ext-italic.woff2") format("woff2"); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* lato-700 - latin_latin-ext */
@font-face {
font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: "Lato";
font-style: normal;
font-weight: 700;
src: url("lato-v25-latin_latin-ext-700.woff2") format("woff2"); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}
/* lato-700italic - latin_latin-ext */
@font-face {
font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: "Lato";
font-style: italic;
font-weight: 700;
src: url("lato-v25-latin_latin-ext-700italic.woff2") format("woff2"); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

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<!doctype html>
<html>
<head>
<title>flip-flip-flip</title>
<meta property="og:title" content="flip-flip-flip" />
<meta
name="description"
content="une app pour exercer sa mémoire grâce à la répétition espacée"
/>
<meta
property="og:description"
content="une app pour exercer sa mémoire grâce à la répétition espacée"
/>
<meta property="og:locale" content="fr_FR" />
<meta
property="og:image"
content="https://flip-flip-flip.fr/assets/fff_512.png"
/>
<meta property="og:image:width" content="512" />
<meta property="og:image:height" content="512" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta charset="utf-8" />
<link rel="stylesheet" href="/style.css" />
<link rel="icon" href="/assets/fff_192.png" />
<link rel="manifest" href="/manifest.json" />
<script type="importmap" nonce="nonce-00000000-0000-0000-0000-000000000000">
{ "imports": { "lit": "/3rd-party/lit-core.min.js" } }
</script>
<script
type="module"
src="/3rd-party/temporal-polyfill.min.js"
nonce="nonce-00000000-0000-0000-0000-000000000000"
></script>
<script
type="module"
src="/lib/script.js"
nonce="nonce-00000000-0000-0000-0000-000000000000"
></script>
</head>
<body>
<dialog id="global-modal" closedby="any"></dialog>
<f-app>
Ce site web nécessite un navigateur à jour avec JavaScript activé pour
fonctionner.
</f-app>
<template id="icon-add">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path d="M440-440H200v-80h240v-240h80v240h240v80H520v240h-80v-240Z" />
</svg>
</template>
<template id="icon-arrow-back">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="m313-440 224 224-57 56-320-320 320-320 57 56-224 224h487v80H313Z"
/>
</svg>
</template>
<template id="icon-check">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path d="M382-240 154-468l57-57 171 171 367-367 57 57-424 424Z" />
</svg>
</template>
<template id="icon-close">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="m256-200-56-56 224-224-224-224 56-56 224 224 224-224 56 56-224 224 224 224-56 56-224-224-224 224Z"
/>
</svg>
</template>
<template id="icon-content-copy">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M360-240q-33 0-56.5-23.5T280-320v-480q0-33 23.5-56.5T360-880h360q33 0 56.5 23.5T800-800v480q0 33-23.5 56.5T720-240H360ZM200-80q-33 0-56.5-23.5T120-160v-560h80v560h440v80H200Z"
/>
</svg>
</template>
<template id="icon-data-object">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M560-160v-80h120q17 0 28.5-11.5T720-280v-80q0-38 22-69t58-44v-14q-36-13-58-44t-22-69v-80q0-17-11.5-28.5T680-720H560v-80h120q50 0 85 35t35 85v80q0 17 11.5 28.5T840-560h40v160h-40q-17 0-28.5 11.5T800-360v80q0 50-35 85t-85 35H560Zm-280 0q-50 0-85-35t-35-85v-80q0-17-11.5-28.5T120-400H80v-160h40q17 0 28.5-11.5T160-600v-80q0-50 35-85t85-35h120v80H280q-17 0-28.5 11.5T240-680v80q0 38-22 69t-58 44v14q36 13 58 44t22 69v80q0 17 11.5 28.5T280-240h120v80H280Z"
/>
</svg>
</template>
<template id="icon-delete">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M280-120q-33 0-56.5-23.5T200-200v-520h-40v-80h200v-40h240v40h200v80h-40v520q0 33-23.5 56.5T680-120H280Zm80-160h80v-360h-80v360Zm160 0h80v-360h-80v360Z"
/>
</svg>
</template>
<template id="icon-edit">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M120-120v-170l528-527q12-11 26.5-17t30.5-6q16 0 31 6t26 18l55 56q12 11 17.5 26t5.5 30q0 16-5.5 30.5T817-647L290-120H120Zm584-528 56-56-56-56-56 56 56 56Z"
/>
</svg>
</template>
<template id="icon-home">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path d="M160-120v-480l320-240 320 240v480H560v-280H400v280H160Z" />
</svg>
</template>
<template id="icon-login">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M480-120v-80h280v-560H480v-80h280q33 0 56.5 23.5T840-760v560q0 33-23.5 56.5T760-120H480Zm-80-160-55-58 102-102H120v-80h327L345-622l55-58 200 200-200 200Z"
/>
</svg>
</template>
<template id="icon-logout">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M200-120q-33 0-56.5-23.5T120-200v-560q0-33 23.5-56.5T200-840h280v80H200v560h280v80H200Zm440-160-55-58 102-102H360v-80h327L585-622l55-58 200 200-200 200Z"
/>
</svg>
</template>
<template id="icon-menu">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M120-240v-80h720v80H120Zm0-200v-80h720v80H120Zm0-200v-80h720v80H120Z"
/>
</svg>
</template>
<template id="icon-person">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M367-527q-47-47-47-113t47-113q47-47 113-47t113 47q47 47 47 113t-47 113q-47 47-113 47t-113-47ZM160-160v-112q0-34 17.5-62.5T224-378q62-31 126-46.5T480-440q66 0 130 15.5T736-378q29 15 46.5 43.5T800-272v112H160Z"
/>
</svg>
</template>
<template id="icon-question-mark">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M424-320q0-81 14.5-116.5T500-514q41-36 62.5-62.5T584-637q0-41-27.5-68T480-732q-51 0-77.5 31T365-638l-103-44q21-64 77-111t141-47q105 0 161.5 58.5T698-641q0 50-21.5 85.5T609-475q-49 47-59.5 71.5T539-320H424Zm56 240q-33 0-56.5-23.5T400-160q0-33 23.5-56.5T480-240q33 0 56.5 23.5T560-160q0 33-23.5 56.5T480-80Z"
/>
</svg>
</template>
<template id="icon-save">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M840-680v480q0 33-23.5 56.5T760-120H200q-33 0-56.5-23.5T120-200v-560q0-33 23.5-56.5T200-840h480l160 160ZM565-275q35-35 35-85t-35-85q-35-35-85-35t-85 35q-35 35-35 85t35 85q35 35 85 35t85-35ZM240-560h360v-160H240v160Z"
/>
</svg>
</template>
<template id="icon-mobile-data-off">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M792-56 400-448v174l62-62 58 56-160 160-160-160 58-56 62 62v-254L56-792l56-56 736 736-56 56ZM640-434l-80-80v-174l-64 64-56-56 160-160 160 160-56 56-64-64v254Z"
/>
</svg>
</template>
<template id="icon-settings">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="m370-80-16-128q-13-5-24.5-12T307-235l-119 50L78-375l103-78q-1-7-1-13.5v-27q0-6.5 1-13.5L78-585l110-190 119 50q11-8 23-15t24-12l16-128h220l16 128q13 5 24.5 12t22.5 15l119-50 110 190-103 78q1 7 1 13.5v27q0 6.5-2 13.5l103 78-110 190-118-50q-11 8-23 15t-24 12L590-80H370Zm112-260q58 0 99-41t41-99q0-58-41-99t-99-41q-59 0-99.5 41T342-480q0 58 40.5 99t99.5 41Z"
/>
</svg>
</template>
<template id="icon-table">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M440-320H120v120q0 33 23.5 56.5T200-120h240v-200Zm80 0v200h240q33 0 56.5-23.5T840-200v-120H520Zm-80-80v-200H120v200h320Zm80 0h320v-200H520v200ZM120-680h720v-80q0-33-23.5-56.5T760-840H200q-33 0-56.5 23.5T120-760v80Z"
/>
</svg>
</template>
<template id="icon-upload">
<svg
xmlns="http://www.w3.org/2000/svg"
viewBox="0 -960 960 960"
fill="currentColor"
>
<path
d="M440-320v-326L336-542l-56-58 200-200 200 200-56 58-104-104v326h-80ZM240-160q-33 0-56.5-23.5T160-240v-120h80v120h480v-120h80v120q0 33-23.5 56.5T720-160H240Z"
/>
</svg>
</template>
</body>
</html>

23
public/manifest.json Normal file
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{
"start_url": "https://flip-flip-flip.fr/",
"name": "flip-flip-flip",
"short_name": "flip!",
"icons": [
{
"src": "/assets/fff_512_maskable.png",
"type": "image/png",
"sizes": "512x512",
"purpose": "any maskable"
},
{
"src": "/assets/fff_192_maskable.png",
"type": "image/png",
"sizes": "192x192",
"purpose": "any maskable"
}
],
"display": "standalone",
"background_color": "#f9f9f9",
"theme_color": "#ff9100",
"orientation": "portrait"
}

61
public/style.css Normal file
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@import url("fonts/fonts.css");
*,
*::before,
*::after {
box-sizing: border-box;
}
/*
* Make 1rem = 10px but keep a global font-size of 16px.
* It doesnt change the behaviour of changing the default font size on browser.
* I checked.
*/
html {
font-size: 62.5%;
body {
font-size: 1.6rem;
}
}
body {
--text-color: black;
--text-color-reverse: white;
--border-color: black;
--background-color: #f9f9f9;
--surface-color: white;
--accent-color: #ff9100;
--primary-color: #0070ff;
--second-color: #ffe6cb;
--danger-color: #ff000c;
--root-margin: 1rem;
--big-border-thickness: 0.4rem;
--big-border: var(--big-border-thickness) solid var(--border-color);
--small-border-thickness: 0.3rem;
--small-border: var(--small-border-thickness) solid var(--border-color);
--big-shadow: 0.8rem 0.8rem 0 var(--border-color);
--small-shadow: 0.4rem 0.4rem 0 var(--border-color);
--smallest-shadow: 0.2rem 0.2rem 0 var(--border-color);
--title-font: "Averia Serif Libre", "Times New Roman", Times, serif;
--no-style-text-decoration: none;
font-family: Lato, Roboto, sans-serif;
background-color: var(--background-color);
color: var(--text-color);
margin: 0;
&.train {
background-color: var(--second-color);
}
}
dialog {
h2 {
margin-bottom: 2rem;
}
footer {
display: flex;
gap: 2rem;
}
}

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push_image.sh Executable file
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IMAGE_NAME=codeberg.org/tma_ztf/flip-flip-flip
GIT_COMMIT=$(git rev-parse --short HEAD)
docker buildx build \
--output type=image,name=${IMAGE_NAME},push=true \
--platform linux/arm/v7,linux/amd64 \
--tag "${IMAGE_NAME}:${GIT_COMMIT}" \
--tag "${IMAGE_NAME}:latest" \
.

24
src/back/Env.ts Normal file
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import { config } from "dotenv";
import * as z from "zod";
import { stringToNumber } from "./utils/zod-codecs.ts";
const EnvSchema = z.object({
FFF_PORT: stringToNumber.default(80),
FFF_JWT_SECRET: z.string().min(1),
FFF_DEV: z.string().optional(),
});
type EnvObj = z.infer<typeof EnvSchema>;
export class Env {
#env!: EnvObj;
init() {
config();
this.#env = EnvSchema.parse(process.env);
}
get<T extends keyof EnvObj>(key: T): EnvObj[T] {
return this.#env[key];
}
}
export const env = new Env();

75
src/back/auth/AuthService.ts Normal file
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import type { JwtPayload } from "jsonwebtoken";
import jwt from "jsonwebtoken";
import { pbkdf2 as pbkdf2Callback, randomBytes } from "node:crypto";
import { promisify } from "node:util";
import { env } from "../Env.ts";
import { error, ok, type Result } from "../utils/Result.ts";
import { userStore } from "./UserStore.ts";
const pbkdf2 = promisify(pbkdf2Callback);
const encoding = "base64url";
const userIdKey = "sub";
export class AuthService {
async signUp(email: string, password: string): Promise<Result<void, string>> {
const id = randomBytes(16).toString(encoding);
const salt = randomBytes(8);
const hash = await this.#hashPassword(password, salt);
if (await userStore.getByEmail(email)) {
return error("email already taken");
}
await userStore.add({
id,
email,
password: hash,
salt: salt.toString(encoding),
});
return ok(undefined);
}
async login(
email: string,
password: string,
): Promise<Result<string, string>> {
const user = await userStore.getByEmail(email);
if (!user) {
return error("user not found");
}
const hash = await this.#hashPassword(
password,
Buffer.from(user.salt, encoding),
);
if (hash !== user.password) {
return { success: false, error: "invalid password" };
}
const token = jwt.sign(
{ [userIdKey]: user.id },
env.get("FFF_JWT_SECRET"),
{ expiresIn: "30d" },
);
return ok(token);
}
verifyToken(token: string): Result<string> {
try {
return ok(
(jwt.verify(token, env.get("FFF_JWT_SECRET")) as JwtPayload)[
userIdKey
]!,
);
} catch {
return error(undefined);
}
}
async #hashPassword(password: string, salt: Buffer) {
const hash = await pbkdf2(password, salt, 5000, 64, "sha512");
return hash.toString(encoding);
}
}
export const authService = new AuthService();

6
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export interface User {
id: string;
email: string;
password: string;
salt: string;
}

45
src/back/auth/UserStore.ts Normal file
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import { existsSync, mkdirSync, writeFileSync } from "node:fs";
import { readFile, writeFile } from "node:fs/promises";
import { dirname } from "node:path";
import type { User } from "./User.ts";
const usersFile = "data/users.json";
const encoding = "utf8";
export class UserStore {
init() {
if (!existsSync(usersFile)) {
if (!existsSync(dirname(usersFile))) {
mkdirSync(dirname(usersFile), { recursive: true });
}
writeFileSync(usersFile, "[]", { encoding, flag: "w" });
}
}
async get(id: string) {
const users = await this.#getFileContent();
return users.find((user) => user.id === id);
}
async getByEmail(email: string) {
const users = await this.#getFileContent();
return users.find((user) => user.email === email);
}
async add(user: User) {
const users = await this.#getFileContent();
await this.#storeNewContent([...users, user]);
}
async #getFileContent() {
return JSON.parse(await readFile(usersFile, encoding)) as User[];
}
async #storeNewContent(users: User[]) {
await writeFile(usersFile, JSON.stringify(users, undefined, 2), {
encoding,
});
}
}
export const userStore = new UserStore();

17
src/back/auth/authMiddleware.ts Normal file
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import { HTTPError, onRequest } from "h3";
import { isError } from "../utils/Result.ts";
import { authService } from "./AuthService.ts";
export const authMiddleware = onRequest((event) => {
const token = event.req.headers.get("Authorization")?.split(" ")[1];
if (!token) {
throw new HTTPError("missing bearer token", { status: 401 });
}
const result = authService.verifyToken(token);
if (isError(result)) {
throw new HTTPError("invalid bearer token", { status: 401 });
}
event.context.userId = result.value;
});

37
src/back/auth/authRoutes.ts Normal file
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import { defineHandler, H3, HTTPError, readValidatedBody } from "h3";
import z from "zod";
import { isError } from "../utils/Result.ts";
import { authService } from "./AuthService.ts";
const authBody = z.object({
email: z.email(),
password: z.string().min(6),
});
const signUpRoute = defineHandler(async (event) => {
const { email, password } = await readValidatedBody(event, authBody);
const result = await authService.signUp(email, password);
if (isError(result)) {
throw new HTTPError(result.error, { status: 409 });
}
return await login(email, password);
});
const loginRoute = defineHandler(async (event) => {
const { email, password } = await readValidatedBody(event, authBody);
return await login(email, password);
});
async function login(email: string, password: string) {
const result = await authService.login(email, password);
if (isError(result)) {
throw new HTTPError(result.error, { status: 401 });
}
return { token: result.value };
}
export const authRoutes = new H3()
.post("sign-up", signUpRoute)
.post("login", loginRoute);

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import { H3, serve, withBase } from "h3";
import { env } from "./Env.ts";
import { userStore } from "./auth/UserStore.ts";
import { authRoutes } from "./auth/authRoutes.ts";
import { nonceMiddleware } from "./static/nonceMiddleware.ts";
import { staticHandler } from "./static/staticHandler.ts";
import {
exportDataRoute,
getUserDataRoute,
importDataRoute,
putUserDataRoute,
} from "./user-data/userDataRoutes.ts";
env.init();
userStore.init();
const app = new H3();
app
.all(
"/api/**",
withBase(
"/api",
new H3()
.all("/auth/**", withBase("/auth", authRoutes))
.get("/user-data", getUserDataRoute)
.put("/user-data", putUserDataRoute)
.get("/export", exportDataRoute)
.post("/import", importDataRoute),
),
)
.get("/**", staticHandler, {
middleware: [nonceMiddleware],
});
serve(app, { port: env.get("FFF_PORT") });

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import { extname } from "node:path";
export function isPathToIndexHtml(path: string) {
return extname(path) === "";
}

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import { onResponse } from "h3";
import { isPathToIndexHtml } from "./isPathToIndexHtml.ts";
export const nonceMiddleware = onResponse(async (response, event) => {
const nonce = `nonce-${crypto.randomUUID()}`;
if (event.req.method === "GET" && isPathToIndexHtml(event.url.pathname)) {
const body = await response.text();
return new Response(replaceNonce(body, nonce), {
status: response.status,
headers: {
...response.headers,
"Content-Security-Policy": `script-src 'nonce-${nonce}'; object-src 'none'; base-uri 'none';`,
"Content-Type": "text/html",
},
});
}
});
function replaceNonce(fileContent: string, nonce: string) {
return fileContent.replaceAll(
"nonce-00000000-0000-0000-0000-000000000000",
nonce,
);
}

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import { defineHandler, serveStatic } from "h3";
import { Stats } from "node:fs";
import { readFile, stat } from "node:fs/promises";
import { join } from "node:path";
import { isPathToIndexHtml } from "./isPathToIndexHtml.ts";
const fallbackFile = join("public", "index.html");
export const staticHandler = defineHandler((event) =>
serveStatic(event, {
getContents: async (id) => {
try {
return await readFile(join("public", id));
} catch {
return isPathToIndexHtml(id) ? await readFile(fallbackFile) : undefined;
}
},
getMeta: async (id) => {
let stats: Stats | undefined;
try {
stats = await stat(join("public", id));
} catch {
stats = isPathToIndexHtml(id) ? await stat(fallbackFile) : undefined;
}
return stats?.isFile()
? { size: stats.size, mtime: stats.mtimeMs }
: undefined;
},
}),
);

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{
"$schema": "https://www.schemastore.org/tsconfig",
"compilerOptions": {
"noEmit": true,
"target": "esnext",
"module": "nodenext",
"rewriteRelativeImportExtensions": true,
"erasableSyntaxOnly": true,
"verbatimModuleSyntax": true
}
}

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import z from "zod";
export const cardSchema = z.object({
id: z.string().nonempty(),
deckId: z.string().nonempty(),
front: z.string(),
back: z.string(),
scheduling: z.object({
easeFactor: z.number().min(0),
streak: z.int().min(0),
interval: z.int().min(0),
lastTrain: z.iso.date().optional(),
nextTrain: z.iso.date(),
}),
});
export type Card = z.infer<typeof cardSchema>;
export const deckSchema = z.object({
id: z.string().nonempty(),
name: z.string(),
frequency: z.literal(["low", "medium", "high"]).optional().default("medium"),
});
export type Deck = z.infer<typeof deckSchema>;
export const userDataSchema = z.object({
decks: z.array(deckSchema),
cards: z.array(cardSchema),
});
export type UserData = z.infer<typeof userDataSchema>;
export const putUserDataBodySchema = z.object({
userData: userDataSchema,
changes: z.array(
z.object({
type: z.literal(["deck", "card"]),
id: z.string().nonempty(),
}),
),
});
const changeSchema = putUserDataBodySchema.shape.changes.unwrap();
export type Change = z.infer<typeof changeSchema>;
export const importBodySchema = z.object({
decks: z.array(deckSchema),
cards: z.array(
z.object({
id: cardSchema.shape.id.optional(),
deckId: cardSchema.shape.deckId,
front: cardSchema.shape.front,
back: cardSchema.shape.back,
scheduling: cardSchema.shape.scheduling.optional(),
}),
),
});
export type ImportUserData = z.infer<typeof importBodySchema>;

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import { existsSync } from "node:fs";
import { mkdir, readFile, writeFile } from "node:fs/promises";
import type { Change, UserData } from "./UserDataSchemas.ts";
const dataFolder = "data";
const encoding = "utf8";
const initialData: UserData = { decks: [], cards: [] };
export class UserDataStore {
#userId: string;
#folderPath: string;
#dataFilePath: string;
constructor(userId: string) {
this.#userId = userId;
this.#folderPath = `${dataFolder}/${this.#userId}`;
this.#dataFilePath = `${this.#folderPath}/data.json`;
}
async get(): Promise<UserData> {
await this.#createDataFileIfNotExists();
const fileContent = await readFile(this.#dataFilePath, encoding);
return JSON.parse(fileContent);
}
async update(userData: UserData, changes: Change[]): Promise<UserData> {
const currentData = await this.get();
const cardChangeIds = changes
.filter(({ type }) => type === "card")
.map(({ id }) => id);
const deckChangeIds = changes
.filter(({ type }) => type === "deck")
.map(({ id }) => id);
const updatedData: UserData = {
cards: [
...currentData.cards.filter(({ id }) => !cardChangeIds.includes(id)),
...userData.cards.filter(({ id }) => cardChangeIds.includes(id)),
],
decks: [
...currentData.decks.filter(({ id }) => !deckChangeIds.includes(id)),
...userData.decks.filter(({ id }) => deckChangeIds.includes(id)),
],
};
// remove orphan cards
const deckIds = updatedData.decks.map((deck) => deck.id);
const cards = updatedData.cards.filter((card) =>
deckIds.includes(card.deckId),
);
await this.#writeDataFile({ ...updatedData, cards });
return updatedData;
}
async insert(userData: UserData) {
const currentData = await this.get();
const updatedData: UserData = {
cards: [...currentData.cards, ...userData.cards],
decks: [...currentData.decks, ...userData.decks],
};
await this.#writeDataFile(updatedData);
return updatedData;
}
async #createDataFileIfNotExists() {
await this.#createFolderIfNotExists();
if (!existsSync(this.#dataFilePath)) {
await this.#writeDataFile(initialData);
}
}
async #createFolderIfNotExists() {
if (!existsSync(this.#folderPath)) {
await mkdir(this.#folderPath);
}
}
async #writeDataFile(content: UserData) {
await writeFile(
this.#dataFilePath,
JSON.stringify(content, undefined, 2),
encoding,
);
}
}

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import Papa from "papaparse";
import { Temporal } from "temporal-polyfill";
import z from "zod";
import { createRandomId } from "../utils/utils.ts";
import {
emptyStringToUndefined,
optionalStringToNumber,
} from "../utils/zod-codecs.ts";
import {
cardSchema,
deckSchema,
type Card,
type Deck,
type UserData,
} from "./UserDataSchemas.ts";
const fieldCodecs = [
["deckId", (card: Card, deck: Deck, deckIndex: number) => deckIndex],
["deckName", (card: Card, deck: Deck) => deck.name],
["deckFrequency", (card: Card, deck: Deck) => deck.frequency],
["front", (card: Card) => card.front],
["back", (card: Card) => card.back],
["schedulingEaseFactor", (card: Card) => card.scheduling.easeFactor],
["schedulingStreak", (card: Card) => card.scheduling.streak],
["schedulingInterval", (card: Card) => card.scheduling.interval],
["schedulingLastTrain", (card: Card) => card.scheduling.lastTrain],
["schedulingNextTrain", (card: Card) => card.scheduling.nextTrain],
] as const;
const fields = fieldCodecs.map((field) => field[0]);
const rowsSchema = z.array(
z.object({
deckId: deckSchema.shape.id,
deckName: deckSchema.shape.name,
deckFrequency: emptyStringToUndefined.pipe(deckSchema.shape.frequency),
front: cardSchema.shape.front,
back: cardSchema.shape.back,
schedulingEaseFactor: emptyStringToUndefined
.pipe(optionalStringToNumber)
.pipe(cardSchema.shape.scheduling.shape.easeFactor.optional()),
schedulingStreak: emptyStringToUndefined
.pipe(optionalStringToNumber)
.pipe(cardSchema.shape.scheduling.shape.streak.optional()),
schedulingInterval: emptyStringToUndefined
.pipe(optionalStringToNumber)
.pipe(cardSchema.shape.scheduling.shape.interval.optional()),
schedulingLastTrain: emptyStringToUndefined.pipe(
cardSchema.shape.scheduling.shape.lastTrain.optional(),
),
schedulingNextTrain: emptyStringToUndefined.pipe(
cardSchema.shape.scheduling.shape.nextTrain.optional(),
),
}),
);
export function toCsv(userData: UserData): string {
const data = userData.decks.flatMap((deck, index) => {
const cards = userData.cards.filter((card) => card.deckId === deck.id);
return cards.map((card) =>
fieldCodecs.map(([, codec]) => codec(card, deck, index + 1) ?? ""),
);
});
return Papa.unparse({ fields, data });
}
export function fromCsv(csv: string): UserData {
const csvResult = Papa.parse(csv, { header: true, skipEmptyLines: true });
if (csvResult.errors.length > 0) {
throw new Error(JSON.stringify(csvResult.errors));
}
const rows = rowsSchema.parse(csvResult.data);
const csvDeckIds = [...new Set(rows.map((row) => row.deckId))];
const userData: UserData = { decks: [], cards: [] };
for (const csvDeckId of csvDeckIds) {
const deck = rows.find((row) => row.deckId === csvDeckId)!;
const deckId = createRandomId();
userData.decks.push({
id: deckId,
name: `[import] ${deck.deckName}`,
frequency: deck.deckFrequency,
});
const deckRows = rows.filter((row) => row.deckId === csvDeckId);
for (const row of deckRows) {
const scheduling =
row.schedulingEaseFactor !== undefined &&
row.schedulingStreak !== undefined &&
row.schedulingInterval !== undefined &&
row.schedulingNextTrain !== undefined
? {
easeFactor: row.schedulingEaseFactor,
streak: row.schedulingStreak,
interval: row.schedulingInterval,
lastTrain: row.schedulingLastTrain,
nextTrain: row.schedulingNextTrain,
}
: {
easeFactor: 0,
streak: 0,
interval: 0,
nextTrain: Temporal.Now.plainDateISO().toString(),
};
userData.cards.push({
id: createRandomId(),
deckId,
front: row.front,
back: row.back,
scheduling,
});
}
}
return userData;
}

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import { Temporal } from "temporal-polyfill";
import { createRandomId } from "../utils/utils.ts";
import type { Card, ImportUserData, UserData } from "./UserDataSchemas.ts";
type ExportData = Omit<UserData, "cards"> & {
cards: Array<Omit<Card, "id">>;
};
// remove scary ids from json export
export function toExportJson(data: UserData): ExportData {
const exportData: ExportData = { decks: [], cards: [] };
for (const [index, deck] of data.decks.entries()) {
const deckId = (index + 1).toString();
exportData.decks.push({ ...deck, id: deckId });
const deckCards = data.cards.filter((card) => card.deckId === deck.id);
for (const { id, ...card } of deckCards) {
exportData.cards.push({ ...card, deckId });
}
}
return exportData;
}
export function fromImportJson(importData: ImportUserData): UserData {
const dataToInsert: UserData = { decks: [], cards: [] };
for (const deck of importData.decks) {
const deckId = createRandomId();
dataToInsert.decks.push({
id: deckId,
name: `[import] ${deck.name}`,
frequency: deck.frequency ?? "medium",
});
const deckCards = importData.cards.filter(
(card) => card.deckId === deck.id,
);
for (const card of deckCards) {
const id = createRandomId();
dataToInsert.cards.push({
...card,
id,
deckId,
scheduling: card.scheduling ?? {
easeFactor: 0,
streak: 0,
interval: 0,
nextTrain: Temporal.Now.plainDateISO().toString(),
},
});
}
}
return dataToInsert;
}

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import { defineHandler, HTTPError, readValidatedBody } from "h3";
import { ZodError } from "zod";
import { authMiddleware } from "../auth/authMiddleware.ts";
import {
importBodySchema,
putUserDataBodySchema,
type UserData,
} from "./UserDataSchemas.ts";
import { UserDataStore } from "./UserDataStore.ts";
import { fromCsv, toCsv } from "./csvCodecs.ts";
import { fromImportJson, toExportJson } from "./jsonCodecs.ts";
export const getUserDataRoute = defineHandler({
middleware: [authMiddleware],
handler: async (event) => {
const dataStore = new UserDataStore(event.context.userId as string);
return await dataStore.get();
},
});
export const putUserDataRoute = defineHandler({
middleware: [authMiddleware],
handler: async (event) => {
const dataStore = new UserDataStore(event.context.userId as string);
const { userData, changes } = await readValidatedBody(
event,
putUserDataBodySchema,
);
return await dataStore.update(userData, changes);
},
});
export const exportDataRoute = defineHandler({
middleware: [authMiddleware],
handler: async (event) => {
const dataStore = new UserDataStore(event.context.userId as string);
const data = await dataStore.get();
if (event.req.headers.get("Accept") === "text/csv") {
const csv = toCsv(data);
return new Response(csv, { headers: { "Content-Type": "text/csv" } });
} else {
return toExportJson(data);
}
},
});
export const importDataRoute = defineHandler({
middleware: [authMiddleware],
handler: async (event) => {
if (event.req.headers.get("Content-Type") === "application/json") {
const importData = await readValidatedBody(event, importBodySchema);
const dataToInsert = fromImportJson(importData);
const dataStore = new UserDataStore(event.context.userId as string);
return await dataStore.insert(dataToInsert);
} else if (event.req.headers.get("Content-Type") === "text/csv") {
let dataToInsert: UserData;
try {
dataToInsert = fromCsv(await event.req.text());
} catch (error) {
throw new HTTPError("could not import csv", {
status: 400,
data: error instanceof ZodError ? error.issues : error,
});
}
const dataStore = new UserDataStore(event.context.userId as string);
return await dataStore.insert(dataToInsert);
} else {
throw new HTTPError("unknown format, only json is supported", {
status: 400,
});
}
},
});

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export type Result<VALUE = void, ERROR = void> =
| { success: true; value: VALUE }
| { success: false; error: ERROR };
export function ok<VALUE, ERROR>(value: VALUE): Result<VALUE, ERROR> {
return { success: true, value };
}
export function error<VALUE, ERROR>(error: ERROR): Result<VALUE, ERROR> {
return { success: false, error };
}
export function isOk<VALUE, ERROR>(result: Result<VALUE, ERROR>) {
return result.success;
}
export function isError<VALUE, ERROR>(result: Result<VALUE, ERROR>) {
return !result.success;
}

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import { randomBytes } from "node:crypto";
export function createRandomId() {
return randomBytes(16).toString("base64url");
}

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import * as z from "zod";
export const stringToNumber = z.codec(
z.string().regex(z.regexes.number),
z.number(),
{
decode: (str) => Number.parseFloat(str),
encode: (num) => num.toString(),
},
);
export const optionalStringToNumber = z.codec(
z.string().regex(z.regexes.number).optional(),
z.number().optional(),
{
decode: (str) => (str ? Number.parseFloat(str) : undefined),
encode: (num) => (num ? num.toString() : undefined),
},
);
export const emptyStringToUndefined = z.codec(
z.string(),
z.string().optional(),
{
decode: (str) => str || undefined,
encode: (str) => str ?? "",
},
);

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import { css, html } from "lit";
import { authService } from "../services/AuthService.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { pageStyle } from "../shared/pageStyle.js";
import { MenuButton } from "./FMenu.js";
export class FAboutPage extends FLitElement {
static styles = [
globalStyle,
pageStyle,
css`
:host {
h1 {
margin-bottom: 1rem;
border-bottom: var(--big-border);
}
h2 {
text-align: left;
}
p {
font-size: 1.8rem;
text-align: justify;
margin-top: 1rem;
}
.card {
padding: 1rem;
}
.before-list {
margin-bottom: 0;
}
ul {
margin-top: 0;
font-size: 1.8rem;
list-style-type: "– ";
}
}
`,
];
render() {
const menu: MenuButton[] = [
{ type: "home" },
authService.isLoggedIn() ? { type: "account" } : { type: "login" },
{ type: "about" },
];
return html`
<f-menu .buttons=${menu}></f-menu>
<div>
<h1>flip-flip-flip</h1>
<h2>répétition espacée</h2>
<p>
Cette app permet de mémoriser facilement des informations grâce à la
<a
href="https://fr.wikipedia.org/wiki/R%C3%A9p%C3%A9tition_espac%C3%A9e"
target="_blank"
>répétition espacée</a
>.
</p>
<p>
Vous créez des cartes question/réponse, vous faites le quizz, vous
indiquez si vous avez réussi à vous souvenir de la réponse ou non.
</p>
<p class="card small">
✨ L’app vous reposera plus souvent les questions auxquelles vous
n’aviez pas su répondre.
</p>
<p class="before-list">Personnellement, je m’en sers :</p>
<ul>
<li>pour retenir du vocabulaire en portugais</li>
<li>des paroles de chansons</li>
<li>pour réviser régulièrement des morceaux de piano</li>
<li>ou des chorégraphies de danse</li>
</ul>
<h2>app mobile</h2>
<p>
Sur téléphone, vous pouvez installer l’app depuis ce site, sur votre
navigateur, ouvrez le menu et choisissez l’option « ajouter à l’écran
d’accueil ».
</p>
<h2>hors connexion</h2>
<p>
Vous pouvez prendre l’app en main sans même créer de compte, toutes
les données seront stockées sur votre appareil.
</p>
<p>
Je conseille toutefois de s’inscrire pour profiter de la
synchronisation entre plusieurs appareils et de la sauvegarde
distante.
</p>
<p>
Dans tous les cas, l’app continue de fonctionner sans connexion
internet.
</p>
<h2>code source</h2>
<p>
C’est un logiciel libre, le code source se trouve ici :
<a href="https://codeberg.org/tma_ztf/flip-flip-flip" target="_blank"
>https://codeberg.org/tma_ztf/flip-flip-flip</a
>.
</p>
<p>
L’algorithme de répétition est
<a href="https://super-memory.com/english/ol/sm2.htm" target="_blank"
>SM-2</a
>
avec un grain d’aléatoire pour éviter que les questions entrées en
même temps reviennent toujours le même jour.
</p>
<h2>contact</h2>
<p>
Pour tout retour, question, suggestion, problème, vous pouvez me
contacter à l’adresse : <em>contact (arobase) flip-flip-flip.fr</em>.
</p>
<h2>alternatives</h2>
<p>
<a href="https://apps.ankiweb.net/" target="_blank">Anki</a> est une
autre application libre, beaucoup plus complète. Elle est aussi
beaucoup plus complexe, j’ai développé flip-flip-flip après avoir
utilisé Anki, j’avais envie d’une app minimaliste pour éviter les
distractions et rendre l’apprentissage plus plaisant.
</p>
<p>
Pas forcément besoin d’ordinateur ou de smartphone pour apprendre avec
la répétition espacée ! Vous pouvez aussi fabriquer votre matériel
avec le
<a
href="https://laclassedemallory.net/2025/11/14/les-boites-memoires-methode-leitner/"
target="_blank"
>système Leitner</a
>.
</p>
</div>
`;
}
}

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import { css, html } from "lit";
import { authService } from "../services/AuthService.js";
import { remoteStore } from "../services/RemoteStore.js";
import { SyncFailureEvent, syncManager } from "../services/SyncManager.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { redirectToHome } from "../shared/navigation.js";
import { pageStyle } from "../shared/pageStyle.js";
import { showErrorModal, showModal } from "../shared/showModal.js";
import { MenuButton } from "./FMenu.js";
export class FAccountPage extends FLitElement {
static styles = [
globalStyle,
pageStyle,
css`
:host {
.main {
display: flex;
flex-direction: column;
gap: 1rem;
}
h1 {
border-bottom: var(--big-border);
}
.card {
padding: 1rem;
display: flex;
flex-direction: row;
align-items: center;
justify-content: space-between;
gap: 3rem;
> :first-child {
flex: 1;
}
}
.buttons-group {
display: flex;
flex-direction: column;
gap: 1rem;
}
.warning {
color: var(--danger-color);
}
input[type="file"] {
display: none;
}
.import-text {
display: flex;
align-items: center;
gap: 1rem;
}
.help {
flex: none;
display: flex;
color: gray;
font-weight: 700;
border: 2px solid gray;
border-radius: 50%;
width: 2rem;
height: 2rem;
align-items: center;
justify-content: center;
> span {
margin-bottom: 0.2rem;
}
}
}
`,
];
declare loading: boolean;
declare syncFailure?: string;
static properties = {
loading: { type: Boolean },
syncFailure: { type: String },
};
render() {
const confirmText = this.syncFailure
? "certaines modifications ne sont pas synchronisées et seront perdues"
: "êtes-vous sûr·e ?";
const logoutButton = html`
<f-confirm-dialog @confirm=${this.#logout} .text=${confirmText}>
<button
class="text-button danger"
title="se déconnecter"
?disabled=${this.loading}
>
se déconnecter
</button>
</f-confirm-dialog>
`;
const menu: MenuButton[] = [
{ type: "home" },
{ type: "account" },
{ type: "about" },
];
return html`
<f-menu .buttons=${menu}></f-menu>
<div class="main">
<h1>flip-flip-flip</h1>
<p>connecté·e en tant que <strong>${authService.getEmail()}</strong></p>
<div class="card small">
<p>exporter mes données</p>
<div class="buttons-group">
<button
@click=${this.#exportJson}
class="text-button primary"
?disabled=${this.loading}
>
<f-template-outlet
data-template="icon-data-object"
></f-template-outlet>
json
</button>
<button
@click=${this.#exportCsv}
class="text-button primary"
?disabled=${this.loading}
>
<f-template-outlet data-template="icon-table"></f-template-outlet>
csv
</button>
</div>
</div>
<div class="card small">
<p class="import-text">
<span>importer mes données</span>
<button
command="show-modal"
commandfor="f-account-page-import-dialog"
class="help"
>
<span>?</span>
</button>
</p>
<button
@click=${this.#clickImport}
class="text-button primary"
?disabled=${this.loading}
>
<f-template-outlet data-template="icon-upload"></f-template-outlet>
json, csv
</button>
<input type="file" accept=".json,.csv" @change=${this.#import} />
</div>
${this.syncFailure
? html`
<div class="card small">
<div class="warning">${confirmText}</div>
${logoutButton}
</div>
`
: logoutButton}
</div>
<dialog id="f-account-page-import-dialog" closedby="any">
<h2>import</h2>
<p>Les formats json et csv sont les mêmes que ceux exportés.</p>
<p>Les infos d’apprentissage ("scheduling") sont optionnelles.</p>
<p>
Les données existantes ne seront pas écrasées, l’import ajoute de
nouveaux paquets sans modifier ceux qui existent.
</p>
</dialog>
`;
}
connectedCallback() {
super.connectedCallback();
this.syncFailure = syncManager.getSyncFailure();
syncManager.addEventListener(
"sync-success",
() => {
this.syncFailure = undefined;
},
{ signal: this.disconnectedSignal },
);
syncManager.addEventListener(
"sync-failure",
(e) => {
this.syncFailure = (e as SyncFailureEvent).detail;
},
{ signal: this.disconnectedSignal },
);
}
async #exportJson() {
this.loading = true;
try {
await remoteStore.exportJson();
} catch (error) {
showErrorModal(error);
} finally {
this.loading = false;
}
}
async #exportCsv() {
this.loading = true;
try {
await remoteStore.exportCsv();
} catch (error) {
showErrorModal(error);
} finally {
this.loading = false;
}
}
#clickImport() {
const fileInput: HTMLInputElement =
this.renderRoot.querySelector('input[type="file"]')!;
fileInput.click();
}
async #import(event: InputEvent) {
this.loading = true;
try {
const fileInput = event.target as HTMLInputElement;
if (fileInput.files) {
const file = fileInput.files[0];
await remoteStore.import(file);
await syncManager.syncWithRemote();
showModal("import terminé");
}
} catch (error) {
showErrorModal(error);
} finally {
this.loading = false;
}
}
#logout() {
syncManager.logout();
redirectToHome();
}
}
declare global {
interface HTMLElementTagNameMap {
"f-account-page": FAccountPage;
}
}

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import { css, html } from "lit";
import { Router } from "../services/Router.js";
import { syncManager } from "../services/SyncManager.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
export class FApp extends FLitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
margin: var(--root-margin);
.width-container {
max-width: 68rem;
margin-left: auto;
margin-right: auto;
position: relative;
}
}
`,
];
declare route: string;
declare routeMatch: RegExpMatchArray;
declare routeParams: string;
static properties = {
route: { type: String },
routeMatch: { type: Object },
};
#router = new Router("/", (route, match, params) => {
this.route = route;
this.routeMatch = match;
this.routeParams = params;
});
constructor() {
super();
syncManager.listenToChanges();
syncManager.initApp();
this.#initRoutes();
}
render() {
let content;
if (this.route === "home") {
content = html`<f-home-page></f-home-page>`;
} else if (this.route === "login") {
content = html`<f-login-page></f-login-page>`;
} else if (this.route === "sign-up") {
content = html`<f-sign-up-page></f-sign-up-page>`;
} else if (this.route === "account") {
content = html`<f-account-page></f-account-page>`;
} else if (this.route === "about") {
content = html`<f-about-page></f-about-page>`;
} else if (this.route === "deck") {
content = html`<f-deck-page .deckId=${this.routeMatch[1]}></f-deck-page>`;
} else if (this.route === "card") {
content = html`<f-card-page
.cardId=${this.routeMatch[1]}
.params=${this.routeParams}
></f-card-page>`;
} else if (this.route === "train") {
content = html`<f-train-page .params=${this.routeParams}></f-train-page>`;
}
return html`
<div class="width-container">
<main>${content}</main>
</div>
`;
}
connectedCallback() {
super.connectedCallback();
window.navigation.addEventListener(
"navigate",
(e) => {
if (e.canIntercept && this.#router.shouldIntercept(e.destination.url)) {
e.intercept({
handler: async () => {
this.#router.handleNavigation(e.destination.url);
},
});
}
},
{ signal: this.disconnectedSignal },
);
this.#router.handleNavigation(window.location.href);
}
onTabVisible() {
syncManager.syncWithRemote();
}
updated() {
document.body.className = this.route;
}
#initRoutes() {
this.#router.addRoute({
name: "home",
matcher: /^\/$/,
});
this.#router.addRoute({
name: "login",
matcher: /^\/login$/,
});
this.#router.addRoute({
name: "sign-up",
matcher: /^\/sign-up$/,
});
this.#router.addRoute({
name: "account",
matcher: /^\/account$/,
});
this.#router.addRoute({
name: "about",
matcher: /^\/about$/,
});
this.#router.addRoute({
name: "new-card",
matcher: /^\/deck\/(.+)\/new-card$/,
});
this.#router.addRoute({
name: "deck",
matcher: /^\/deck\/(.+)$/,
});
this.#router.addRoute({
name: "card",
matcher: /^\/card\/(.+)$/,
});
this.#router.addRoute({
name: "train",
matcher: /^\/train$/,
});
}
}
declare global {
interface HTMLElementTagNameMap {
"f-app": FApp;
}
}

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export class FCardFace extends HTMLElement {
static observedAttributes = ["data-text"];
attributeChangedCallback() {
this.replaceChildren(...this.#toNodes(this.dataset.text ?? ""));
}
#toNodes(content: string): (Text | HTMLBRElement | HTMLAnchorElement)[] {
const newLineMatch = content.indexOf("\n");
const nextNewline = newLineMatch !== -1 ? newLineMatch : Infinity;
const urlMatch = content.match(/https?:\/\/\S+/);
const nextUrl = urlMatch ? content.indexOf(urlMatch[0]) : Infinity;
if (nextNewline === Infinity && nextUrl === Infinity) {
return [document.createTextNode(content)];
} else if (nextNewline < nextUrl) {
return [
document.createTextNode(content.slice(0, nextNewline)),
document.createElement("br"),
...this.#toNodes(content.slice(nextNewline + 1)),
];
} else {
const url = document.createElement("a");
const href = urlMatch![0];
url.href = href;
url.textContent = href;
url.target = "_blank";
return [
document.createTextNode(content.slice(0, nextUrl)),
url,
...this.#toNodes(content.slice(nextUrl + href.length)),
];
}
}
}
declare global {
interface HTMLElementTagNameMap {
"f-card-face": FCardFace;
}
}

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import { css, html, LitElement, nothing, PropertyValues } from "lit";
import { dataStore } from "../services/DataStore.js";
import { scheduler } from "../services/Scheduler.js";
import { fitText } from "../shared/fitText.js";
import { globalStyle } from "../shared/globalStyle.js";
import { redirectToHome } from "../shared/navigation.js";
import { pageStyle } from "../shared/pageStyle.js";
import { Card } from "../types/data.types.js";
import { createRandomId } from "../utils/utils.js";
import { FlipEvent } from "./FFlippable.js";
import { MenuButton } from "./FMenu.js";
const animationDuration = 200;
export class FCardPage extends LitElement {
static styles = [
globalStyle,
pageStyle,
css`
:host {
.slim {
max-width: 50rem;
display: flex;
margin-left: auto;
margin-right: auto;
}
.full-height {
container-type: size;
height: calc(100vh - 2rem);
width: 100%;
display: flex;
justify-content: center;
}
f-flippable {
--ratio: calc(2 / 3);
height: min(100cqh, 100cqw / var(--ratio));
width: min(100cqh * var(--ratio), 100cqw);
[slot] {
width: 100%;
height: 100%;
}
}
f-flippable header,
.animated header {
background-color: var(--second-color);
}
f-flippable section,
.animated section {
overflow-x: hidden;
overflow-y: auto;
overscroll-behavior: contain;
}
[contenteditable] {
overflow-wrap: break-word;
white-space: pre-wrap;
min-width: 10rem;
min-height: 10rem;
}
.animated {
z-index: 1000;
position: fixed;
right: calc(100vw - var(--x) - var(--width));
top: var(--y);
height: var(--height);
width: var(--width);
animation: exit ${animationDuration}ms ease-in;
}
}
@keyframes exit {
to {
right: 110vw;
transform: rotate(-20deg);
}
}
`,
];
declare cardId: string;
declare card: Card;
declare flipped: boolean;
declare params: string;
declare animatedCard?: AnimatedCard;
declare forceRerender: boolean;
static properties = {
cardId: { type: String },
card: { type: Object },
flipped: { type: Boolean },
params: { type: String },
animatedCard: { type: Object },
forceRerender: { type: Boolean },
};
willUpdate(changedProperties: PropertyValues<this>) {
if (changedProperties.has("cardId")) {
const card = dataStore.getCard(this.cardId);
if (!card) {
console.error(`card ${this.cardId} not found`);
redirectToHome();
return;
}
this.card = card;
this.flipped = false;
this.forceRerender = true;
}
}
render() {
const menu: MenuButton[] = [];
const params = new URLSearchParams(this.params);
const fromTraining = params.has("fromTraining");
const backUrl = fromTraining
? `/train?${params}`
: `/deck/${this.card.deckId}`;
const deleteButton = html`
<f-confirm-dialog
.text=${"supprimer la carte ?"}
@confirm=${() => this.#deleteCard(backUrl)}
>
<button
class="symbol-button danger nav-button"
title="supprimer la carte"
>
<span>supprimer la carte</span>
<f-template-outlet data-template="icon-delete"></f-template-outlet>
</button>
</f-confirm-dialog>
`;
if (fromTraining) {
params.delete("fromTraining");
menu.push({ type: "back", url: backUrl });
menu.push({ type: "custom", template: deleteButton });
} else {
const otherCardButton = html`
<button
class="symbol-button primary nav-button"
title="créer une autre carte"
@click=${() => this.#createOther()}
>
<span>créer une autre carte</span>
<f-template-outlet data-template="icon-add"></f-template-outlet>
</button>
`;
const reverseCardButton = html`
<button
class="symbol-button primary nav-button"
title="créer la carte inverse"
@click=${() => this.#createReverse()}
>
<span>créer la carte inverse</span>
<f-template-outlet
data-template="icon-content-copy"
></f-template-outlet>
</button>
`;
menu.push({ type: "home" });
menu.push({ type: "back", url: backUrl });
menu.push({ type: "custom", template: otherCardButton });
menu.push({ type: "custom", template: reverseCardButton });
menu.push({ type: "custom", template: deleteButton });
}
return html`
<f-menu .buttons=${menu}></f-menu>
<div class="slim">
<div class="full-height">
<f-flippable
.flipped=${this.flipped}
@flip=${(e: FlipEvent) => (this.flipped = e.detail.flipped)}
>
<div slot="front" class="card">
<header>
<h2>question</h2>
</header>
<section>
${this.forceRerender
? nothing
: html`
<!-- prettier-ignore -->
<div
data-front-text
contenteditable="plaintext-only"
@input=${this.#onInput}
@focus=${this.#onFocusFront}
>${this.card.front}</div>
`}
</section>
</div>
<div slot="back" class="card">
<header>
<h2>réponse</h2>
</header>
<section>
${this.forceRerender
? nothing
: html`
<!-- prettier-ignore -->
<div
data-back-text
contenteditable="plaintext-only"
@input=${this.#onInput}
@focus=${this.#onFocusBack}
>${this.card.back}</div>
`}
</section>
</div>
</f-flippable>
</div>
</div>
${this.animatedCard
? html`
<div
class="animated card"
style="--x: ${this.animatedCard.x}px; --y: ${this.animatedCard
.y}px; --width: ${this.animatedCard.width}px; --height: ${this
.animatedCard.height}px"
>
<header>
<h2>${this.animatedCard.flipped ? "réponse" : "question"}</h2>
</header>
<section>
<!-- prettier-ignore -->
<div contenteditable="plaintext-only">${this.animatedCard
.text}</div>
</section>
</div>
`
: nothing}
`;
}
updated(changedProperties: PropertyValues<this>) {
// this is a hack to force lit to remove and put back the contenteditable text
// otherwise it doesnt know that it has been edited by the user and must be re-rendered
// TODO: there must be a better way
if (this.forceRerender) {
this.forceRerender = false;
}
if (
changedProperties.has("cardId") ||
changedProperties.has("flipped") ||
changedProperties.has("forceRerender") ||
changedProperties.has("animatedCard")
) {
this.#fitText();
}
}
#onFocusFront(e: FocusEvent) {
if (this.#getFrontText() === newCardFront) {
window.getSelection()?.selectAllChildren(e.target as Node);
}
}
#onFocusBack(e: FocusEvent) {
if (this.#getBackText() === newCardBack) {
window.getSelection()?.selectAllChildren(e.target as Node);
}
}
#getFrontText() {
return (
this.renderRoot.querySelector("[data-front-text]")?.textContent ?? ""
);
}
#getBackText() {
return this.renderRoot.querySelector("[data-back-text]")?.textContent ?? "";
}
#onInput() {
dataStore.editCard(this.cardId, {
front: this.#getFrontText(),
back: this.#getBackText(),
});
this.#fitText();
}
#createOther() {
this.#playAnimation();
const newCard = {
id: createRandomId(),
deckId: this.card.deckId,
front: newCardFront,
back: newCardBack,
scheduling: scheduler.newScheduling(),
};
dataStore.addCard(newCard);
window.navigation.navigate(`/card/${newCard.id}`);
}
#createReverse() {
this.#playAnimation();
const newCard = {
id: createRandomId(),
deckId: this.card.deckId,
front: this.#getBackText(),
back: this.#getFrontText(),
scheduling: scheduler.newScheduling(),
};
dataStore.addCard(newCard);
window.navigation.navigate(`/card/${newCard.id}`);
}
#deleteCard(backUrl: string) {
dataStore.removeCard(this.cardId);
window.navigation.navigate(backUrl);
}
#playAnimation() {
const copied = this.renderRoot.querySelector("f-flippable")!;
const { x, y, width, height } = copied.getBoundingClientRect();
this.animatedCard = {
flipped: copied.flipped,
text: copied.flipped ? this.#getBackText() : this.#getFrontText(),
x,
y,
width,
height,
};
setTimeout(() => {
this.animatedCard = undefined;
}, animationDuration - 10);
}
#fitText() {
if (this.flipped) {
fitText(
this.renderRoot.querySelector('[slot="back"] [contenteditable]'),
22,
);
} else {
fitText(
this.renderRoot.querySelector('[slot="front"] [contenteditable]'),
22,
);
}
if (this.animatedCard) {
fitText(this.renderRoot.querySelector(".animated [contenteditable]"), 22);
}
}
}
export type FCardEditionData =
| { creation: false; card: Card }
| { creation: true; deckId: string };
declare global {
interface HTMLElementTagNameMap {
"f-card-page": FCardPage;
}
}
export const newCardFront = "entrez une question que vous voulez mémoriser";
export const newCardBack = "entrez la réponse ici";
type AnimatedCard = {
flipped: boolean;
text: string;
x: number;
y: number;
height: number;
width: number;
};

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import { css, html, PropertyValues } from "lit";
import { scheduler } from "../services/Scheduler.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { Card } from "../types/data.types.js";
import { durationToString } from "../utils/utils.js";
export class FCardThumbnail extends FLitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
.card {
height: 100%;
overflow: hidden;
}
section {
white-space: pre-wrap;
overflow-wrap: break-word;
border-bottom: var(--big-border);
position: relative;
overflow: hidden;
}
footer {
background-color: var(--second-color);
font-family: var(--title-font);
white-space: nowrap;
padding: 1rem 0.5rem;
}
}
`,
];
declare card: Card;
declare daysUntilTrain: number;
static properties = {
card: { type: Object },
daysUntilTrain: { type: Number },
};
willUpdate(changedProperties: PropertyValues<this>) {
if (changedProperties.has("card")) {
this.daysUntilTrain = scheduler.daysUntilTrain(this.card.scheduling);
}
}
onTabVisible() {
this.daysUntilTrain = scheduler.daysUntilTrain(this.card.scheduling);
}
render() {
return html`
<a href="/card/${this.card.id}" class="card small no-style">
<section>${this.card.front}</section>
<footer>
${this.daysUntilTrain === 0
? "à réviser"
: html`dans ${durationToString(this.daysUntilTrain)}`}
</footer>
</a>
`;
}
}
declare global {
interface HTMLElementTagNameMap {
"f-card-thumbnail": FCardThumbnail;
}
}

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import { css, html } from "lit";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { TypedEvent } from "../utils/TypedEvent.js";
export class FConfirmDialog extends FLitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
dialog {
h2 {
margin-bottom: 2rem;
}
footer {
display: flex;
gap: 2rem;
justify-content: center;
}
}
}
`,
];
#dialog!: HTMLDialogElement;
declare text: string;
static properties = {
text: { type: String },
};
render() {
return html`
<dialog closedby="any">
<h2>${this.text}</h2>
<footer>
<button @click=${this.#onCancel} class="text-button primary">
annuler
</button>
<button
@click=${this.#onConfirm}
data-confirm-button
class="text-button danger"
>
confirmer
</button>
</footer>
</dialog>
<slot></slot>
`;
}
connectedCallback() {
super.connectedCallback();
this.firstElementChild!.addEventListener(
"click",
() => {
this.#dialog.showModal();
},
{ signal: this.disconnectedSignal },
);
}
firstUpdated() {
this.#dialog = this.renderRoot.querySelector("dialog")!;
}
#onCancel() {
this.#dialog.close();
}
#onConfirm() {
this.dispatchEvent(new CustomEvent("confirm"));
this.#dialog.close();
}
}
export type ConfirmEvent = TypedEvent<FConfirmDialog>;
declare global {
interface HTMLElementTagNameMap {
"f-confirm-dialog": FConfirmDialog;
}
interface GlobalEventHandlersEventMap {
confirm: ConfirmEvent;
}
}

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import { PropertyValues, css, html, nothing } from "lit";
import { dataStore } from "../services/DataStore.js";
import { scheduler } from "../services/Scheduler.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { redirectToHome } from "../shared/navigation.js";
import { pageStyle } from "../shared/pageStyle.js";
import { Card, Deck, DeckFrequency } from "../types/data.types.js";
import { createRandomId } from "../utils/utils.js";
import { newCardBack, newCardFront } from "./FCardPage.js";
import { MenuButton } from "./FMenu.js";
import { toTrainParams } from "./FTrainPage.js";
export class FDeckPage extends FLitElement {
static styles = [
globalStyle,
pageStyle,
css`
:host {
.deck {
display: flex;
flex-direction: column;
gap: 2rem;
}
header {
display: flex;
align-items: center;
gap: 1rem;
}
h2 {
flex-grow: 1;
padding: 1rem;
}
.cards {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
gap: 1rem;
}
.cards > * {
aspect-ratio: 2 / 3;
}
.new-card-button {
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
font-size: 5rem;
border: var(--big-border-thickness) dashed var(--border-color);
background-color: var(--surface-color);
}
dialog {
width: 90vw;
max-width: 40rem;
/* avoid jumps when the height dynamically changes */
margin-top: 20vh;
section {
padding: 1rem;
}
.field {
display: flex;
flex-direction: column;
}
label {
font-style: italic;
}
p {
font-style: italic;
font-size: 1.4rem;
}
}
}
`,
];
declare deckId: string;
declare frequency: DeckFrequency;
declare toTrain: Card[];
static properties = {
deckId: { type: Object },
frequency: { type: String },
toTrain: { type: Array },
};
#deck!: Deck;
#cards!: Card[];
#settingsDialog!: HTMLDialogElement;
willUpdate(changedProperties: PropertyValues<this>) {
if (changedProperties.has("deckId")) {
const deck = dataStore.getDeck(this.deckId);
if (!deck) {
console.error(`deck ${this.deckId} not found`);
redirectToHome();
return;
}
this.#deck = deck;
this.frequency = deck.frequency;
this.#cards = dataStore.getCardsFor(this.deckId);
this.#setToTrain();
}
}
onTabVisible() {
this.#setToTrain();
}
render() {
const navSettings = html`
<button
@click=${() => this.#settingsDialog.showModal()}
class="symbol-button primary nav-button"
>
<span>paramètres du paquet</span>
<f-template-outlet data-template="icon-settings"></f-template-outlet>
</button>
`;
const navDelete = html`<f-confirm-dialog
@confirm=${() => this.#deleteDeck()}
.text=${"supprimer le paquet ?"}
>
<button
class="symbol-button danger nav-button"
title="supprimer le paquet"
>
<span>supprimer le paquet</span>
<f-template-outlet data-template="icon-delete"></f-template-outlet>
</button>
</f-confirm-dialog>`;
const menu: MenuButton[] = [
{ type: "home" },
{ type: "back", url: "/" },
{ type: "custom", template: navSettings },
{ type: "custom", template: navDelete },
];
return html`
<f-menu .buttons=${menu}></f-menu>
<div class="deck">
<header>
<h2 class="card">
<input
type="text"
.value=${this.#deck.name}
@input=${this.#onInputName}
@focus=${this.#onFocusName}
size="1"
/>
</h2>
</header>
${this.toTrain.length > 0
? html`<a
href="/train?${toTrainParams(
this.toTrain.map((card) => card.id),
)}"
class="text-button accent"
>
réviser
</a>`
: nothing}
<div data-cards class="cards">
<div>
<button
@click=${this.#createCard}
class="new-card-button"
title="nouvelle carte"
>
<span>+</span>
</button>
</div>
${this.#cards.map(
(card) => html`<f-card-thumbnail .card=${card}></f-card-thumbnail>`,
)}
</div>
</div>
<dialog closedby="any">
<h2>paramètres du paquet</h2>
<section>
<div class="field">
<label for="f-deck-page-range">fréquence</label>
<input
type="range"
value="${frequencyRange[this.#deck.frequency]}"
@input=${this.#onInputFrequency}
min="1"
max="3"
id="f-deck-page-range"
list="f-deck-page-range-list"
/>
<datalist id="f-deck-page-range-list">
<option value="1"></option>
<option value="2"></option>
<option value="3"></option>
</datalist>
</div>
<p>
${this.frequency === "low"
? "révisions moins fréquentes, intervalle maximum d’un an"
: ""}
${this.frequency === "medium"
? "révisions moyennement fréquentes, intervalle maximum de 6 mois"
: ""}
${this.frequency === "high"
? "révisions fréquentes, intervalle maximum de 3 mois"
: ""}
</p>
</section>
</dialog>
`;
}
firstUpdated() {
this.#settingsDialog = this.renderRoot.querySelector("dialog")!;
}
#setToTrain() {
this.toTrain = scheduler.getTrainingStack(this.#cards);
}
#onFocusName(e: Event) {
const input = e.target as HTMLInputElement;
if (input.value === newDeckName) {
input.select();
}
}
#onInputName(e: Event) {
const name = (e.target as HTMLInputElement).value;
dataStore.editDeck(this.deckId, { name });
}
#createCard() {
const newCard = {
id: createRandomId(),
deckId: this.deckId,
front: newCardFront,
back: newCardBack,
scheduling: scheduler.newScheduling(),
};
dataStore.addCard(newCard);
window.navigation.navigate(`/card/${newCard.id}`);
}
#deleteDeck() {
dataStore.removeDeck(this.deckId);
redirectToHome();
}
#onInputFrequency(e: InputEvent) {
const range = (e.target as HTMLInputElement).value;
this.frequency = Object.entries(frequencyRange).find(
([, val]) => val === range,
)![0] as DeckFrequency;
dataStore.editDeck(this.#deck.id, { frequency: this.frequency });
}
}
declare global {
interface HTMLElementTagNameMap {
"f-deck-page": FDeckPage;
}
}
export const newDeckName = "nouveau paquet";
const frequencyRange: Record<DeckFrequency, string> = {
low: "1",
medium: "2",
high: "3",
};

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import { PropertyValues, css, html, nothing } from "lit";
import { dataStore } from "../services/DataStore.js";
import { scheduler } from "../services/Scheduler.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { Card, Deck } from "../types/data.types.js";
import { toTrainParams } from "./FTrainPage.js";
export class FDeckThumbnail extends FLitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
.card {
height: 100%;
> a {
display: block;
}
}
header {
background-color: var(--second-color);
}
footer {
padding: 0.5rem;
a {
box-shadow: var(--smallest-shadow);
}
}
h2 {
font-size: 1.8rem;
overflow: hidden;
line-clamp: 2;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
display: -webkit-box;
}
section {
padding: 1rem 0.5rem;
text-align: center;
overflow: hidden;
}
a.text-button {
display: block;
text-align: center;
padding: 0.5rem;
}
}
`,
];
declare deck: Deck;
declare cards: Card[];
declare toTrain: Card[];
static properties = {
deck: { type: Object },
cards: { type: Array },
toTrain: { type: Number },
};
willUpdate(changedProperties: PropertyValues<this>) {
if (changedProperties.has("deck")) {
this.cards = dataStore.getCardsFor(this.deck.id);
this.#setCardsToTrain();
}
}
onTabVisible() {
this.#setCardsToTrain();
}
render() {
return html`
<div class="card small">
<a href="/deck/${this.deck.id}" class="no-style">
<header>
<h2 title=${this.deck.name}>${this.deck.name}</h2>
</header>
</a>
<section>
${this.toTrain.length > 0
? html`<strong>${this.toTrain.length}</strong> cartes à réviser`
: html`rien à réviser`}
</section>
<footer>
${this.toTrain.length > 0
? html`<a
href="/train?${toTrainParams(
this.toTrain.map((card) => card.id),
)}"
class="text-button accent"
>
réviser
</a>`
: nothing}
</footer>
</div>
`;
}
#setCardsToTrain() {
this.toTrain = scheduler.getTrainingStack(this.cards);
}
}
declare global {
interface HTMLElementTagNameMap {
"f-deck-thumbnail": FDeckThumbnail;
}
}

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import { css, html, LitElement, nothing } from "lit";
import { syncManager } from "../services/SyncManager.js";
import { globalStyle } from "../shared/globalStyle.js";
import { redirectToHome } from "../shared/navigation.js";
import { TypedEvent } from "../utils/TypedEvent.js";
export class FEmailPassword extends LitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
form {
display: flex;
flex-direction: column;
gap: 1rem;
}
.field {
display: flex;
flex-direction: column;
}
label {
font-style: italic;
}
input {
font-size: 2rem;
}
button {
align-self: center;
}
}
`,
];
declare disabled: boolean;
declare confirmPassword: boolean;
static properties = {
disabled: { type: Boolean },
confirmPassword: { type: Boolean },
};
email = "";
password = "";
password2 = "";
constructor() {
super();
this.confirmPassword = false;
}
render() {
return html`
<form @submit=${this.#submit}>
<div class="field">
<label for="f-email-password-email">email</label>
<input
id="f-email-password-email"
@input=${this.#onInputEmail}
name="email"
type="email"
required
size="1"
autocomplete="email"
/>
</div>
<div class="field">
<label for="f-email-password-password">mot de passe</label>
<input
id="f-email-password-password"
@input=${this.#onInputPassword}
name="password"
type="password"
required
minlength="6"
size="1"
autocomplete=${this.confirmPassword
? "new-password"
: "current-password"}
/>
</div>
${this.confirmPassword
? html`
<div class="field">
<label for="f-email-password-password2"
>confirmer le mot de passe</label
>
<input
id="f-email-password-password2"
@input=${this.#onInputPassword2}
name="password2"
type="password"
required
minlength="6"
size="1"
autocomplete="new-password"
/>
</div>
`
: nothing}
<button
type="submit"
class="text-button primary"
?disabled=${this.disabled}
>
<slot name="submit-button"></slot>
</button>
</form>
`;
}
firstConnectedCallback() {
if (syncManager.isLoggedIn()) {
redirectToHome();
return;
}
}
#onInputEmail(e: Event) {
this.email = (e.target as HTMLInputElement).value;
}
#onInputPassword(e: Event) {
this.password = (e.target as HTMLInputElement).value;
}
#onInputPassword2(e: Event) {
this.password2 = (e.target as HTMLInputElement).value;
}
async #submit(e: SubmitEvent) {
e.preventDefault();
const options = {
detail: {
email: this.email,
password: this.password,
password2: this.password2,
},
bubbles: true,
composed: true,
};
this.dispatchEvent(new CustomEvent("email-password-submit", options));
}
}
export type EmailPasswordSubmitEvent = TypedEvent<
FEmailPassword,
{ email: string; password: string; password2: string }
>;
declare global {
interface HTMLElementTagNameMap {
"f-email-password": FEmailPassword;
}
interface GlobalEventHandlersEventMap {
"email-password-submit": EmailPasswordSubmitEvent;
}
}

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import { css, html, nothing } from "lit";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { TypedEvent } from "../utils/TypedEvent.js";
import { randomIntBetween } from "../utils/utils.js";
const animationDuration = 250;
export class FFlippable extends FLitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
perspective: 100rem;
.container {
width: 100%;
height: 100%;
cursor: pointer;
transform-style: preserve-3d;
user-select: none;
}
.flip {
animation: flip ${animationDuration}ms linear;
}
.little-flip-text {
position: fixed;
z-index: 9999;
font-weight: 700;
font-size: 2rem;
font-family: var(--title-font);
color: var(--accent-color);
padding: 0.5rem;
}
}
@keyframes flip {
50% {
rotate: y 90deg;
}
50.1% {
rotate: y 270deg;
}
to {
rotate: y 360deg;
}
}
`,
];
declare flipped: boolean;
declare littleFlip?: LittleFlip;
static properties = {
flipped: { type: Boolean },
littleFlip: { type: Object },
};
flipEnabled = true;
render() {
return html`
${this.getLittleFlip()}
<div @click=${this.onClick} class="container">
${this.flipped
? html`<slot name="back"></slot>`
: html`<slot name="front"></slot>`}
</div>
`;
}
getLittleFlip() {
return this.littleFlip
? html`
<span
class="little-flip-text"
style="left: ${this.littleFlip.left}px; top: ${this.littleFlip
.top}px; transform: rotate(${this.littleFlip.rotate}deg)"
inert
>flip !</span
>
`
: nothing;
}
enableFlip() {
this.flipEnabled = true;
}
disableFlip() {
this.flipEnabled = false;
}
async flip() {
return new Promise((resolve) => {
const container = this.renderRoot.querySelector(".container")!;
container.classList.add("flip");
setTimeout(() => {
this.flipped = !this.flipped;
this.dispatchEvent(
new CustomEvent("flip", { detail: { flipped: this.flipped } }),
);
}, animationDuration / 2);
setTimeout(() => {
container.classList.remove("flip");
resolve(undefined);
}, animationDuration);
});
}
onClick(e: MouseEvent) {
if (
this.flipEnabled &&
!this.#onInteractiveElement(e) &&
document.getSelection()?.type !== "Range"
) {
this.flip();
this.#showFlip(e.clientX, e.clientY);
}
}
#onInteractiveElement(e: Event) {
return (
e.target instanceof Element &&
(e.target.closest("a") ||
e.target.closest("button") ||
e.target.closest("[contenteditable]") ||
e.target.closest("f-confirm-dialog"))
);
}
#showFlip(x: number, y: number) {
this.littleFlip = {
left: x - this.getBoundingClientRect().x - randomIntBetween(50, 70),
top: y - this.getBoundingClientRect().y - randomIntBetween(30, 50),
rotate: randomIntBetween(-25, 0),
};
setTimeout(() => {
this.littleFlip = undefined;
}, 300);
}
}
interface LittleFlip {
left: number;
top: number;
rotate: number;
}
export type FlipEvent = TypedEvent<FFlippable, { flipped: boolean }>;
declare global {
interface HTMLElementTagNameMap {
"f-flippable": FFlippable;
}
interface GlobalEventHandlersEventMap {
flip: FlipEvent;
}
}

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import { css, html } from "lit";
import { authService } from "../services/AuthService.js";
import { dataStore } from "../services/DataStore.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { pageStyle } from "../shared/pageStyle.js";
import { Deck } from "../types/data.types.js";
import { createRandomId } from "../utils/utils.js";
import { newDeckName } from "./FDeckPage.js";
import { MenuButton } from "./FMenu.js";
export class FHomePage extends FLitElement {
static styles = [
globalStyle,
pageStyle,
css`
:host {
h1 {
margin-bottom: 1rem;
border-bottom: var(--big-border);
}
.decks {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
gap: 1rem;
}
.decks > * {
aspect-ratio: 2 / 3;
}
.new-card-button {
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
font-size: 5rem;
border: var(--big-border-thickness) dashed var(--border-color);
background-color: var(--surface-color);
}
}
`,
];
declare decks: Deck[];
declare isLoggedIn: boolean;
static properties = {
decks: { type: Array },
isLoggedIn: { type: Boolean },
};
constructor() {
super();
this.decks = dataStore.getDecks();
this.isLoggedIn = authService.isLoggedIn();
}
render() {
const menu: MenuButton[] = [
{ type: "home" },
this.isLoggedIn ? { type: "account" } : { type: "login" },
{ type: "about" },
];
return html`
<f-menu .buttons=${menu}></f-menu>
<div>
<h1>flip-flip-flip</h1>
<div class="decks">
<div>
<button
@click=${this.#createDeck}
class="new-card-button"
title="nouveau paquet"
>
<span>+</span>
</button>
</div>
${this.decks.map(
(deck) => html`<f-deck-thumbnail .deck=${deck}></f-deck-thumbnail>`,
)}
</div>
</div>
`;
}
connectedCallback() {
super.connectedCallback();
dataStore.addEventListener(
"change",
() => {
this.decks = dataStore.getDecks();
},
{ signal: this.disconnectedSignal },
);
authService.addEventListener(
"login",
() => {
this.isLoggedIn = true;
},
{ signal: this.disconnectedSignal },
);
authService.addEventListener(
"logout",
() => {
this.isLoggedIn = false;
},
{ signal: this.disconnectedSignal },
);
}
#createDeck() {
const deck: Deck = {
id: createRandomId(),
name: newDeckName,
frequency: "medium",
};
dataStore.addDeck(deck);
window.navigation.navigate(`/deck/${deck.id}`);
}
}
declare global {
interface HTMLElementTagNameMap {
"f-home-page": FHomePage;
}
}

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import { css, html, LitElement } from "lit";
import { syncManager } from "../services/SyncManager.js";
import { UnauthenticatedError } from "../shared/errors.js";
import { globalStyle } from "../shared/globalStyle.js";
import { redirectToHome } from "../shared/navigation.js";
import { pageStyle } from "../shared/pageStyle.js";
import { showErrorModal } from "../shared/showModal.js";
import { EmailPasswordSubmitEvent } from "./FEmailPassword.js";
import { MenuButton } from "./FMenu.js";
export class FLoginPage extends LitElement {
static styles = [
globalStyle,
pageStyle,
css`
:host {
p {
text-align: center;
}
a.no-style,
button {
--no-style-text-decoration: underline;
text-decoration: var(--no-style-text-decoration);
font-style: italic;
}
dialog section {
padding: 1rem;
}
}
`,
];
declare disabled: boolean;
static properties = {
disabled: { type: Boolean },
};
constructor() {
super();
this.disabled = false;
}
render() {
const menu: MenuButton[] = [{ type: "home" }];
return html`
<f-menu .buttons=${menu}></f-menu>
<div>
<f-email-password
.disabled=${this.disabled}
@email-password-submit=${this.#submit}
>
<span slot="submit-button">connexion</span>
</f-email-password>
<p>
<a href="/sign-up" class="no-style">créer un compte</a> -
<button command="show-modal" commandfor="login-page-dialog">
mot de passe oublié
</button>
</p>
<dialog id="login-page-dialog" closedby="any">
<h2>mot de passe oublié</h2>
<section>
merci d’envoyer un mail à l’adresse :
<em>contact (arobase) flip-flip-flip.fr</em>
</section>
</dialog>
</div>
`;
}
async #submit(e: EmailPasswordSubmitEvent) {
try {
this.disabled = true;
await syncManager.login(e.detail.email, e.detail.password);
redirectToHome();
} catch (error) {
if (error instanceof UnauthenticatedError) {
showErrorModal("email ou mot de passe invalide");
} else {
showErrorModal(error);
}
} finally {
this.disabled = false;
}
}
}
declare global {
interface HTMLElementTagNameMap {
"f-login-page": FLoginPage;
}
}

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import { css, html, nothing, TemplateResult } from "lit";
import { SyncFailureEvent, syncManager } from "../services/SyncManager.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
export class FMenu extends FLitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
z-index: 2;
nav {
width: 3.5rem;
margin-left: 1rem;
display: flex;
flex-direction: column;
align-items: flex-end;
gap: 1rem;
}
.sync-failure {
display: block;
width: 3.5rem;
height: 3.5rem;
color: var(--danger-color);
}
.nav-button {
transform: translate(0) !important;
gap: 0;
padding: 0.3rem;
width: 3.5rem;
span {
overflow-x: hidden;
white-space: nowrap;
}
}
.open .nav-button {
width: auto;
span {
margin: 0 1rem;
}
}
@media (hover: hover) {
.nav-button:hover {
width: auto;
span {
margin: 0 1rem;
}
}
}
.open-menu-button {
color: var(--primary-color);
padding-right: 0.2rem;
padding-bottom: 1rem;
padding-left: 0.2rem;
f-template-outlet {
display: block;
width: 3rem;
height: 3rem;
}
}
}
`,
];
declare buttons: MenuButton[];
declare open: boolean;
declare syncFailure?: string;
static properties = {
buttons: { type: Array },
open: { type: Boolean },
syncFailure: { type: String },
};
render() {
const syncFailureIcon = html`<f-template-outlet
data-template="icon-mobile-data-off"
class="sync-failure"
title="problème de connexion, sync en attente"
></f-template-outlet>`;
return html`
<nav class="${this.open ? "open" : ""}">
${this.buttons.map((button) => this.#getButtonTemplate(button))}
<button
@click=${this.#onClickOpen}
class="open-menu-button"
title="ouvrir le menu"
>
<f-template-outlet data-template="icon-menu"></f-template-outlet>
</button>
${this.syncFailure === "unauthenticated"
? html`<f-renew-token-dialog
>${syncFailureIcon}</f-renew-token-dialog
>`
: this.syncFailure
? syncFailureIcon
: nothing}
</nav>
`;
}
connectedCallback() {
super.connectedCallback();
this.syncFailure = syncManager.getSyncFailure();
syncManager.addEventListener(
"sync-success",
() => {
this.syncFailure = undefined;
},
{ signal: this.disconnectedSignal },
);
syncManager.addEventListener(
"sync-failure",
(e) => {
this.syncFailure = (e as SyncFailureEvent).detail;
},
{ signal: this.disconnectedSignal },
);
}
#getButtonTemplate(button: MenuButton) {
switch (button.type) {
case "login": {
return html`<a
href="/login"
class="symbol-button primary nav-button"
title="se connecter"
>
<span>se connecter</span>
<f-template-outlet data-template="icon-login"></f-template-outlet>
</a>`;
}
case "account": {
return html`<a
href="/account"
class="symbol-button primary nav-button"
title="mon compte"
>
<span>mon compte</span>
<f-template-outlet data-template="icon-person"></f-template-outlet>
</a>`;
}
case "about": {
return html`<a
href="/about"
class="symbol-button primary nav-button"
title="à propos"
>
<span>à propos</span>
<f-template-outlet
data-template="icon-question-mark"
></f-template-outlet>
</a>`;
}
case "home": {
return html`<a
href="/"
class="symbol-button primary nav-button"
title="accueil"
>
<span>accueil</span>
<f-template-outlet data-template="icon-home"></f-template-outlet>
</a>`;
}
case "back": {
return html`<a
href=${button.url}
class="symbol-button primary nav-button"
title="retour"
>
<span>retour</span>
<f-template-outlet
data-template="icon-arrow-back"
></f-template-outlet>
</a>`;
}
case "custom": {
return button.template;
}
default: {
return nothing;
}
}
}
#onClickOpen() {
this.open = !this.open;
}
}
declare global {
interface HTMLElementTagNameMap {
"f-menu": FMenu;
}
}
export type MenuButton =
| { type: "login" }
| { type: "account" }
| { type: "about" }
| { type: "home" }
| { type: "back"; url: string }
| { type: "custom"; template: TemplateResult };

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import { css, html } from "lit";
import { syncManager } from "../services/SyncManager.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
import { showErrorModal } from "../shared/showModal.js";
export class FRenewTokenDialog extends FLitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
dialog {
width: 90vw;
max-width: 50rem;
}
form {
display: flex;
align-items: flex-end;
flex-wrap: wrap;
justify-content: flex-end;
gap: 1rem;
padding: 1rem;
}
.field {
flex-grow: 1;
display: flex;
flex-direction: column;
min-width: 20rem;
}
label {
font-style: italic;
}
input {
font-size: 2rem;
}
slot {
cursor: pointer;
}
}
`,
];
declare disabled: boolean;
static properties = {
disabled: { type: Boolean },
};
#dialog!: HTMLDialogElement;
#password = "";
render() {
return html`
<dialog closedby="any">
<h2>prolonger la connexion</h2>
<section>
<form @submit=${this.#onSubmit} method="post" action="">
<div class="field">
<label for="f-renew-token-dialog-password">mot de passe</label>
<input
id="f-renew-token-dialog-password"
@input=${this.#onInputPassword}
name="password"
type="password"
required
minlength="6"
size="1"
autocomplete="current-password"
/>
</div>
<button
type="submit"
class="text-button primary"
?disabled=${this.disabled}
>
envoyer
</button>
</form>
</section>
</dialog>
<slot @click=${this.#open}></slot>
`;
}
firstUpdated() {
this.#dialog = this.renderRoot.querySelector("dialog")!;
}
#open() {
this.#dialog.showModal();
}
#onInputPassword(e: Event) {
this.#password = (e.target as HTMLInputElement).value;
}
async #onSubmit() {
try {
this.disabled = true;
await syncManager.renewToken(this.#password);
this.#dialog.close();
} catch (error) {
this.#dialog.close();
showErrorModal(error);
} finally {
this.disabled = false;
}
}
}
declare global {
interface HTMLElementTagNameMap {
"f-renew-token-dialog": FRenewTokenDialog;
}
}

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import { css, html, LitElement } from "lit";
import { syncManager } from "../services/SyncManager.js";
import { globalStyle } from "../shared/globalStyle.js";
import { redirectToHome } from "../shared/navigation.js";
import { pageStyle } from "../shared/pageStyle.js";
import { showErrorModal } from "../shared/showModal.js";
import { EmailPasswordSubmitEvent } from "./FEmailPassword.js";
import { MenuButton } from "./FMenu.js";
export class FSignUpPage extends LitElement {
static styles = [
globalStyle,
pageStyle,
css`
:host {
p {
text-align: center;
}
a.no-style {
--no-style-text-decoration: underline;
font-style: italic;
}
}
`,
];
declare disabled: boolean;
static properties = {
disabled: { type: Boolean },
};
constructor() {
super();
this.disabled = false;
}
render() {
const menu: MenuButton[] = [{ type: "home" }];
return html`
<f-menu .buttons=${menu}></f-menu>
<div>
<f-email-password
.confirmPassword=${true}
.disabled=${this.disabled}
@email-password-submit=${this.#submit}
>
<span slot="submit-button">créer un compte</span>
</f-email-password>
<p>
vous avez déjà un compte ?
<a href="/login" class="no-style">connexion</a>
</p>
</div>
`;
}
async #submit(e: EmailPasswordSubmitEvent) {
try {
this.disabled = true;
if (e.detail.password !== e.detail.password2) {
showErrorModal("les deux mots de passe ne correspondent pas");
return;
}
await syncManager.signUp(e.detail.email, e.detail.password);
redirectToHome();
} catch (error) {
showErrorModal(error);
} finally {
this.disabled = false;
}
}
}
declare global {
interface HTMLElementTagNameMap {
"f-sign-up-page": FSignUpPage;
}
}

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import { css, html, PropertyValues } from "lit";
import { TypedEvent } from "../utils/TypedEvent.js";
import { FFlippable } from "./FFlippable.js";
const animationDuration = 250;
export class FSwipable extends FFlippable {
static styles = [
...FFlippable.styles,
css`
:host {
.right {
--border-color: var(--accent-color);
color: var(--accent-color);
filter: opacity(60%);
}
.left {
filter: opacity(60%);
}
.container {
position: relative;
}
.animated-left,
.animated-right {
&.animated-left {
animation: exit-left ${animationDuration}ms ease-in;
}
&.animated-right {
animation: exit-right ${animationDuration}ms ease-in;
}
}
}
@keyframes exit-left {
to {
right: 110vw;
transform: rotate(-20deg);
}
}
@keyframes exit-right {
to {
left: 110vw;
transform: rotate(20deg);
}
}
`,
];
#moved = false;
#swipeMovementStart = 0;
declare swipeEnabled: boolean;
declare grabbed: boolean;
declare swipeMovement: number;
declare animated?: "left" | "right";
static properties = {
...FFlippable.properties,
swipeEnabled: { type: Boolean },
grabbed: { type: Boolean },
swipeMovement: { type: Number },
animated: { type: String },
};
constructor() {
super();
this.swipeMovement = 0;
}
connectedCallback() {
super.connectedCallback();
const signal = this.disconnectedSignal;
window.addEventListener("mousemove", (e) => this.#onMove(e.clientX), {
signal,
});
window.addEventListener(
"touchmove",
(e) => this.#onMove(e.touches[0].clientX),
{ signal },
);
window.addEventListener("mouseup", () => this.#onRelease(), { signal });
window.addEventListener("touchend", () => this.#onRelease(), { signal });
window.addEventListener("touchcancel", () => this.#stopMove(true), {
signal,
});
}
render() {
const directionClass = this.grabbed
? (this.#getDirection() ?? "")
: (this.animated ?? "");
const animatedClass = this.animated ? `animated-${this.animated}` : "";
const leftRight =
this.animated === "left"
? `right: ${-this.swipeMovement}px`
: `left: ${this.swipeMovement}px`;
return html`
${this.getLittleFlip()}
<div
@click=${this.onClick}
@mousedown=${this.onMouseDown}
@touchstart=${this.onTouchStart}
@selectstart=${(e: Event) => e.preventDefault()}
class="container ${directionClass} ${animatedClass}"
style="${leftRight}; transform: rotate(${this.swipeMovement * 0.01}deg)"
>
${this.flipped
? html`<slot name="back"></slot>`
: html`<slot name="front"></slot>`}
</div>
`;
}
willUpdate(changedProperties: PropertyValues<this>) {
if (changedProperties.has("swipeMovement")) {
const directionBefore = this.#getDirection(
changedProperties.get("swipeMovement"),
);
const directionAfter = this.#getDirection();
if (directionBefore !== directionAfter) {
this.dispatchEvent(
new CustomEvent("swipe-position", {
detail: {
result:
directionAfter === "right"
? true
: directionAfter === "left"
? false
: undefined,
},
}),
);
}
}
}
onMouseDown(e: MouseEvent) {
if (
this.swipeEnabled &&
e.button === 0 &&
!this.#onInteractiveElement(e) &&
!this.animated
) {
e.preventDefault();
this.#startMove(e.clientX);
}
}
onTouchStart(e: TouchEvent) {
if (this.swipeEnabled && !this.#onInteractiveElement(e) && !this.animated) {
this.#startMove(e.touches[0].clientX);
}
}
async autoSwipe(result: boolean) {
await new Promise((resolve) => {
this.animated = result ? "right" : "left";
setTimeout(() => {
this.animated = undefined;
resolve(undefined);
}, animationDuration);
});
}
#onInteractiveElement(e: Event) {
return (
e.target instanceof HTMLAnchorElement ||
e.target instanceof HTMLButtonElement
);
}
#startMove(clientX: number) {
this.#swipeMovementStart = clientX;
this.grabbed = true;
}
#onMove(clientX: number) {
if (!this.grabbed) return;
if (this.swipeEnabled) {
const movement = this.#getNormalizedMovement(
clientX - this.#swipeMovementStart,
);
this.swipeMovement = movement;
if (!this.#moved && this.#distinctlyMoved()) {
this.#moved = true;
this.disableFlip();
}
}
}
#getDirection(movement = this.swipeMovement) {
const max = this.#getMaxMovement();
return movement === max ? "right" : movement === -max ? "left" : undefined;
}
#getNormalizedMovement(movementX: number) {
const max = this.#getMaxMovement();
return Math.abs(movementX) < 20
? 0
: Math.min(Math.max(movementX, -max), max);
}
#getMaxMovement() {
return this.offsetWidth / 6;
}
#onRelease() {
if (!this.grabbed) return;
const cancelled = !this.#distinctlyMoved();
this.#stopMove(cancelled);
}
#stopMove(cancelled: boolean) {
if (!this.grabbed) return;
this.grabbed = false;
this.#moved = false;
const direction = this.#getDirection();
if (!cancelled && direction) {
this.animated = direction;
setTimeout(() => {
this.dispatchEvent(
new CustomEvent("swipe", {
detail: { result: direction === "right" },
}),
);
}, animationDuration - 10);
setTimeout(() => {
this.swipeMovement = 0;
this.animated = undefined;
}, animationDuration);
} else {
this.swipeMovement = 0;
}
// wait for all mouse events to be emitted before reactivating flip
requestAnimationFrame(() => {
this.enableFlip();
});
}
#distinctlyMoved() {
return Math.abs(this.swipeMovement) > 3;
}
}
export type StartSwipeEvent = TypedEvent<FSwipable>;
export type SwipeEvent = TypedEvent<FSwipable, { result: boolean }>;
export type SwipePositionEvent = TypedEvent<
FSwipable,
{ result: boolean | undefined }
>;
declare global {
interface HTMLElementTagNameMap {
"f-swipable": FSwipable;
}
interface GlobalEventHandlersEventMap {
swipe: SwipeEvent;
}
interface GlobalEventHandlersEventMap {
"swipe-position": SwipeEvent;
}
}

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export class FTemplateOutlet extends HTMLElement {
connectedCallback() {
const templateId = this.dataset.template!;
const template = document.getElementById(templateId) as HTMLTemplateElement;
this.appendChild(template.content.cloneNode(true));
}
}
declare global {
interface HTMLElementTagNameMap {
"f-template-outlet": FTemplateOutlet;
}
}

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import { css, html, LitElement, nothing, PropertyValues } from "lit";
import { dataStore } from "../services/DataStore.js";
import { scheduler } from "../services/Scheduler.js";
import { fitText } from "../shared/fitText.js";
import { globalStyle } from "../shared/globalStyle.js";
import { redirectToHome } from "../shared/navigation.js";
import { Card, Deck, Scheduling } from "../types/data.types.js";
import { durationToString } from "../utils/utils.js";
import { FlipEvent } from "./FFlippable.js";
import { SwipeEvent, SwipePositionEvent } from "./FSwipable.js";
export class FTrainPage extends LitElement {
static styles = [
globalStyle,
css`
:host {
display: flex;
flex-direction: column;
align-items: center;
height: calc(100vh - 2 * var(--root-margin));
nav {
display: flex;
justify-content: center;
gap: 1rem;
}
.nav-button {
font-family: var(--title-font);
display: flex;
width: auto;
transform: translate(0) !important;
span {
margin: 0 1rem;
white-space: nowrap;
}
f-template-outlet {
min-width: 2.32rem;
width: 2.32rem;
height: 2.32rem;
}
}
.hint {
position: absolute;
z-index: 2;
margin-top: 25vh;
background-color: var(--surface-color);
border: var(--small-border);
padding: 0.5rem;
text-align: center;
font-family: var(--title-font);
font-weight: 700;
font-size: 2rem;
&.accent {
background-color: var(--accent-color);
color: var(--text-color-inverse);
}
}
.full-height {
flex-grow: 1;
margin: 2rem 0;
container-type: size;
width: 100%;
max-width: 50rem;
display: flex;
justify-content: center;
align-items: center;
padding: 1rem;
}
f-swipable {
--ratio: calc(2 / 3);
height: min(100cqh, 100cqw / var(--ratio));
width: min(100cqh * var(--ratio), 100cqw);
[slot] {
width: 100%;
height: 100%;
overflow-x: hidden;
overflow-y: auto;
overscroll-behavior: contain;
}
}
.card {
align-items: center;
justify-content: safe center;
}
f-train-progress {
position: absolute;
width: calc(100% - 2 * var(--big-border-thickness));
top: var(--big-border-thickness);
}
.fit-text {
max-width: 100%;
overflow-wrap: break-word;
margin-bottom: 5rem;
}
f-card-face {
display: block;
padding: 1rem;
a,
a:hover,
a:visited,
a:active {
color: inherit;
}
}
footer {
position: absolute;
width: calc(100% - 2 * var(--big-border-thickness));
bottom: var(--big-border-thickness);
background: linear-gradient(
to top,
rgba(255, 255, 255, 1),
rgba(255, 255, 255, 1) 70%,
rgba(255, 255, 255, 0)
);
display: flex;
button {
flex-grow: 1;
padding: 1rem;
font-size: 2rem;
font-family: var(--title-font);
&:first-child {
text-align: left;
}
&:last-child {
text-align: right;
}
}
}
}
`,
];
declare params: string;
declare displayedCard: Card;
declare flipped: boolean;
declare successScheduling: Scheduling;
declare swipePosition?: boolean;
static properties = {
params: { type: String },
displayedCard: { type: Object },
flipped: { type: Boolean },
successScheduling: { type: Object },
swipePosition: { type: Boolean },
};
#deck!: Deck;
constructor() {
super();
this.flipped = false;
}
willUpdate(changedProperties: PropertyValues<this>) {
if (changedProperties.has("params")) {
const cardIds = fromTrainParams(this.params);
if (cardIds.length === 0) {
redirectToHome();
return;
}
const card = dataStore.getCard(cardIds[0]);
if (!card || !scheduler.isDue(card.scheduling)) {
console.error(`card ${cardIds[0]} not found or not due`);
this.#navigateToNextCard();
return;
}
this.displayedCard = card;
this.#deck = dataStore.getDeck(card.deckId)!;
this.successScheduling = scheduler.updateScheduling(
this.displayedCard.scheduling,
this.#deck.frequency,
true,
);
this.flipped = false;
}
}
render() {
if (!this.displayedCard) return nothing;
const hint = this.swipePosition
? html`<div class="hint accent" inert>
mémorisé, à réviser dans
${durationToString(this.successScheduling.interval)}
</div>`
: this.swipePosition === false
? html`<div class="hint" inert>oublié, à réviser !</div>`
: nothing;
const cardsLeft = fromTrainParams(this.params).length;
return html`
<nav>
<a href="/" class="symbol-button primary nav-button" title="accueil">
<f-template-outlet data-template="icon-home"></f-template-outlet>
<span>accueil</span>
</a>
<a
href="/card/${this.displayedCard
.id}?fromTraining&${new URLSearchParams(this.params)}"
class="symbol-button primary nav-button"
title="modifier"
>
<f-template-outlet data-template="icon-edit"></f-template-outlet>
</a>
</nav>
${hint}
<div class="full-height">
<f-swipable
.swipeEnabled=${this.flipped}
.flipped=${this.flipped}
@flip=${(e: FlipEvent) => (this.flipped = e.detail.flipped)}
@swipe=${(e: SwipeEvent) => this.#onTrainedCard(e.detail.result)}
@swipe-position=${(e: SwipePositionEvent) =>
(this.swipePosition = e.detail.result)}
>
<div slot="front" class="card">
<f-train-progress
.deckId=${this.displayedCard.deckId}
.cardsLeft=${cardsLeft}
></f-train-progress>
<div class="fit-text">
<f-card-face data-text=${this.displayedCard.front}></f-card-face>
</div>
</div>
<div slot="back" class="card">
<f-train-progress
.deckId=${this.displayedCard.deckId}
.cardsLeft=${cardsLeft}
></f-train-progress>
<div class="fit-text">
<f-card-face data-text=${this.displayedCard.back}></f-card-face>
</div>
<footer>
<button @click=${this.#onClickNo}>oublié</button>
<button @click=${this.#onClickYes}>mémorisé</button>
</footer>
</div>
</f-swipable>
</div>
`;
}
updated(changedProperties: PropertyValues<this>) {
if (
changedProperties.has("displayedCard") ||
changedProperties.has("flipped")
) {
this.#fitText();
}
}
#fitText() {
const slot = this.flipped ? "back" : "front";
fitText(this.renderRoot.querySelector(`[slot="${slot}"] .fit-text`));
}
async #onClickYes() {
await this.renderRoot.querySelector("f-swipable")?.autoSwipe(true);
this.#onTrainedCard(true);
}
async #onClickNo() {
await this.renderRoot.querySelector("f-swipable")?.autoSwipe(false);
this.#onTrainedCard(false);
}
#onTrainedCard(remembered: boolean) {
dataStore.editCard(this.displayedCard.id, {
scheduling: remembered
? this.successScheduling
: scheduler.updateScheduling(
this.displayedCard.scheduling,
this.#deck.frequency,
false,
),
});
this.#navigateToNextCard();
}
#navigateToNextCard() {
window.navigation.navigate(
`/train?${toTrainParams(fromTrainParams(this.params).slice(1))}`,
);
}
}
export function toTrainParams(cardIds: string[]) {
return new URLSearchParams(cardIds.map((cardId) => ["card", cardId]));
}
function fromTrainParams(params: string) {
return Array(...new URLSearchParams(params).entries())
.filter(([key]) => key === "card")
.map(([, value]) => value);
}
declare global {
interface HTMLElementTagNameMap {
"f-train-page": FTrainPage;
}
}

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import { css, html, PropertyValues } from "lit";
import { dataStore } from "../services/DataStore.js";
import { scheduler } from "../services/Scheduler.js";
import { FLitElement } from "../shared/FLitElement.js";
import { globalStyle } from "../shared/globalStyle.js";
export class FTrainProgress extends FLitElement {
static styles = [
globalStyle,
css`
:host {
display: block;
.bar {
height: 0.5rem;
background-color: var(--accent-color);
}
}
`,
];
declare deckId: string;
declare cardsLeft: number;
declare progress: number;
static properties = {
deckId: { type: String },
cardsLeft: { type: Array },
progress: { type: Number },
};
render() {
return html`
<div class="bar" style="width: ${this.progress * 100}%"></div>
`;
}
connectedCallback() {
super.connectedCallback();
dataStore.addEventListener(
"change",
() => {
this.#calculateProgress();
},
{ signal: this.disconnectedSignal },
);
}
willUpdate(changedProperties: PropertyValues<this>) {
if (changedProperties.has("deckId") || changedProperties.has("cardsLeft")) {
this.#calculateProgress();
}
}
#calculateProgress() {
const todayCards = dataStore
.getCardsFor(this.deckId)
.filter(
(card) =>
scheduler.isDue(card.scheduling) ||
(card.scheduling.lastTrain &&
card.scheduling.lastTrain.equals(Temporal.Now.plainDateISO())),
).length;
if (todayCards === 0) {
this.progress = 1;
return;
}
this.progress = (todayCards - this.cardsLeft) / todayCards;
}
}
declare global {
interface HTMLElementTagNameMap {
"f-train-progress": FTrainProgress;
}
}

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import { FAboutPage } from "./elements/FAboutPage.js";
import { FAccountPage } from "./elements/FAccountPage.js";
import { FApp } from "./elements/FApp.js";
import { FCardFace } from "./elements/FCardFace.js";
import { FCardPage } from "./elements/FCardPage.js";
import { FCardThumbnail } from "./elements/FCardThumbnail.js";
import { FConfirmDialog } from "./elements/FConfirmDialog.js";
import { FDeckPage } from "./elements/FDeckPage.js";
import { FDeckThumbnail } from "./elements/FDeckThumbnail.js";
import { FEmailPassword } from "./elements/FEmailPassword.js";
import { FFlippable } from "./elements/FFlippable.js";
import { FHomePage } from "./elements/FHomePage.js";
import { FLoginPage } from "./elements/FLoginPage.js";
import { FMenu } from "./elements/FMenu.js";
import { FRenewTokenDialog } from "./elements/FRenewTokenDialog.js";
import { FSignUpPage } from "./elements/FSignUpPage.js";
import { FSwipable } from "./elements/FSwipable.js";
import { FTemplateOutlet } from "./elements/FTemplateOutlet.js";
import { FTrainPage } from "./elements/FTrainPage.js";
import { FTrainProgress } from "./elements/FTrainProgress.js";
function define(eltClass: CustomElementConstructor) {
const tagName = eltClass.name
.replace(/[A-Z]/g, (letter) => `-${letter.toLowerCase()}`)
.slice(1);
customElements.define(tagName, eltClass);
}
define(FAboutPage);
define(FAccountPage);
define(FApp);
define(FCardFace);
define(FCardPage);
define(FCardThumbnail);
define(FConfirmDialog);
define(FDeckPage);
define(FDeckThumbnail);
define(FEmailPassword);
define(FFlippable);
define(FHomePage);
define(FLoginPage);
define(FMenu);
define(FRenewTokenDialog);
define(FSignUpPage);
define(FSwipable);
define(FTemplateOutlet);
define(FTrainPage);
define(FTrainProgress);

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import { handleNetworkError } from "../shared/errors.js";
import { TypedEvent } from "../utils/TypedEvent.js";
const tokenKey = "token";
const emailKey = "email";
export class AuthService extends EventTarget {
getToken() {
return window.localStorage.getItem(tokenKey)!;
}
isLoggedIn() {
return !!window.localStorage.getItem(tokenKey);
}
getEmail() {
return window.localStorage.getItem(emailKey)!;
}
async login(email: string, password: string) {
await this.#loginSignUp("login", email, password);
this.dispatchEvent(new CustomEvent("login"));
}
async signUp(email: string, password: string) {
await this.#loginSignUp("signup", email, password);
this.dispatchEvent(new CustomEvent("login"));
}
logout() {
window.localStorage.removeItem(tokenKey);
window.localStorage.removeItem(emailKey);
this.dispatchEvent(new CustomEvent("logout"));
}
async #loginSignUp(
action: "login" | "signup",
email: string,
password: string,
) {
const url = action === "login" ? "/api/auth/login" : "/api/auth/sign-up";
const result = await fetch(url, {
method: "POST",
body: JSON.stringify({ email, password }),
headers: { "Content-Type": "application/json" },
});
await handleNetworkError(result);
const { token } = await result.json();
window.localStorage.setItem(tokenKey, token);
window.localStorage.setItem(emailKey, email);
}
}
export const authService = new AuthService();
export type LoginEvent = TypedEvent<AuthService>;
export type LogoutEvent = TypedEvent<AuthService>;

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import { Card, Deck } from "../types/data.types.js";
import { TypedEvent } from "../utils/TypedEvent.js";
import { WatchValue } from "../utils/WatchValue.js";
import { scheduler } from "./Scheduler.js";
export class DataStore extends EventTarget {
#data = new WatchValue<AppDataAndChanges, DataChangeOrigin>(
{ appData: { decks: [], cards: [] }, changes: [] },
(data, origin) => this.#onUpdate(data, origin),
);
get data() {
return this.#data.value;
}
get #decks() {
return this.data.appData.decks;
}
get #cards() {
return this.data.appData.cards;
}
resetData(data: AppDataAndChanges, origin?: DataChangeOrigin) {
this.#data.set(data, origin);
}
getAppData(): AppData {
return this.#data.value.appData;
}
resetChanges(origin?: DataChangeOrigin) {
this.#data.set({ ...this.#data.value, changes: [] }, origin);
}
getDecks() {
return this.#decks.toSorted((a, b) => a.name.localeCompare(b.name));
}
getDeck(deckId: string) {
return this.#decks.find((deck) => deck.id === deckId);
}
getCard(cardId: string) {
return this.#cards.find((card) => card.id === cardId);
}
getCardsFor(deckId: string) {
return this.#cards
.filter((card) => card.deckId === deckId)
.toSorted(
(a, b) =>
scheduler.daysUntilTrain(a.scheduling) -
scheduler.daysUntilTrain(b.scheduling) ||
a.front.localeCompare(b.front),
);
}
addDeck(deck: Deck, origin?: DataChangeOrigin) {
this.#data.set(
{
appData: this.#patchedAppData({ decks: [...this.#decks, deck] }),
changes: this.#withChanges({ type: "deck", id: deck.id }),
},
origin,
);
}
editDeck(id: string, edit: Partial<Deck>) {
const deck = this.getDeck(id);
if (!deck) {
throw new Error(`deck ${id} not found`);
}
const index = this.#decks.indexOf(deck);
this.#data.set({
appData: this.#patchedAppData({
decks: this.#decks.toSpliced(index, 1, { ...deck, ...edit, id }),
}),
changes: this.#withChanges({ type: "deck", id: deck.id }),
});
}
removeDeck(id: string) {
const cardsToRemove = this.getCardsFor(id);
this.#data.set({
appData: this.#patchedAppData({
decks: this.#decks.filter((deck) => deck.id !== id),
cards: this.#cards.filter((card) => !cardsToRemove.includes(card)),
}),
changes: this.#withChanges(
...[
{ type: "deck", id } as DataChange,
...cardsToRemove.map(
(card) => ({ type: "card", id: card.id }) as DataChange,
),
],
),
});
}
addCard(card: Card, origin?: DataChangeOrigin) {
this.#data.set(
{
appData: this.#patchedAppData({
cards: [...this.#cards, this.#trimCard(card)],
}),
changes: this.#withChanges({ type: "card", id: card.id }),
},
origin,
);
}
editCard(id: string, edit: Partial<Card>) {
const card = this.getCard(id);
if (!card) {
throw new Error(`card ${id} not found`);
}
const index = this.#cards.indexOf(card);
this.#data.set({
appData: this.#patchedAppData({
cards: this.#cards.toSpliced(index, 1, { ...card, ...edit, id }),
}),
changes: this.#withChanges({ type: "card", id: card.id }),
});
}
removeCard(id: string) {
this.#data.set({
appData: this.#patchedAppData({
cards: this.#cards.filter((card) => card.id !== id),
}),
changes: this.#withChanges({ type: "card", id }),
});
}
addChanges(changes: DataChange[], origin?: DataChangeOrigin) {
this.#data.set(
{
appData: this.data.appData,
changes: this.#withChanges(...changes),
},
origin,
);
}
#withChanges(...changes: DataChange[]) {
const newChanges = changes.filter(
(change) =>
!this.data.changes.find(
(c) => c.type === change.type && c.id === change.id,
),
);
return [...this.data.changes, ...newChanges];
}
#patchedAppData(patch: Partial<AppData>): AppData {
return { ...this.data.appData, ...patch };
}
#trimCard(card: Card) {
return { ...card, front: card.front.trim(), back: card.back.trim() };
}
#onUpdate(data: AppDataAndChanges, origin?: string) {
this.dispatchEvent(new CustomEvent("change", { detail: { data, origin } }));
}
}
export const dataStore = new DataStore();
export interface AppData {
cards: Card[];
decks: Deck[];
}
export interface DataChange {
type: "card" | "deck";
id: string;
}
export interface AppDataAndChanges {
appData: AppData;
changes: DataChange[];
}
export type DataChangeOrigin = "local" | "remote" | undefined;
export type DataChangeEvent = TypedEvent<
DataStore,
{ data: AppDataAndChanges; origin: DataChangeOrigin }
>;

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import { instanciateData } from "../shared/instanciateData.js";
import { AppDataAndChanges } from "./DataStore.js";
const key = "app-data";
export class LocalStore {
get(): AppDataAndChanges | undefined {
const localStorageData = localStorage.getItem(key);
if (!localStorageData) {
return undefined;
}
const data = JSON.parse(localStorageData!) as AppDataAndChanges;
return { ...data, appData: instanciateData(data.appData) };
}
store(data: AppDataAndChanges) {
localStorage.setItem(key, JSON.stringify(data));
}
reset() {
localStorage.removeItem(key);
}
}
export const localStore = new LocalStore();

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import { handleNetworkError } from "../shared/errors.js";
import { instanciateData } from "../shared/instanciateData.js";
import { authService, AuthService } from "./AuthService.js";
import { AppData, AppDataAndChanges } from "./DataStore.js";
export class RemoteStore {
#authService: AuthService;
constructor(authService: AuthService) {
this.#authService = authService;
}
async getAppData(): Promise<AppData> {
const result = await fetch("/api/user-data", {
headers: { Authorization: `Bearer ${this.#authService.getToken()}` },
});
await handleNetworkError(result);
const data: AppData = await result.json();
return instanciateData(data);
}
async sendChanges({ appData, changes }: AppDataAndChanges): Promise<AppData> {
const result = await fetch("/api/user-data", {
method: "PUT",
body: JSON.stringify({ userData: appData, changes }),
headers: {
"Content-Type": "application/json",
Authorization: `Bearer ${this.#authService.getToken()}`,
},
});
await handleNetworkError(result);
const data: AppData = await result.json();
return instanciateData(data);
}
async import(file: File) {
const result = await fetch("/api/import", {
method: "POST",
headers: { Authorization: `Bearer ${this.#authService.getToken()}` },
body: file,
});
await handleNetworkError(result);
}
async exportJson() {
const result = await fetch("/api/export", {
headers: { Authorization: `Bearer ${this.#authService.getToken()}` },
});
await handleNetworkError(result);
this.#download(
await result.text(),
`flip-flip-flip-${Temporal.Now.plainDateISO()}.json`,
"application/json",
);
}
async exportCsv() {
const result = await fetch("/api/export", {
headers: {
Authorization: `Bearer ${this.#authService.getToken()}`,
Accept: "text/csv",
},
});
await handleNetworkError(result);
this.#download(
await result.text(),
`flip-flip-flip-${Temporal.Now.plainDateISO()}.csv`,
"text/csv",
);
}
#download(content: string, filename: string, mimeType: string) {
const blob = new Blob([content], { type: mimeType });
const link = document.createElement("a");
const url = URL.createObjectURL(blob);
link.href = url;
link.download = filename;
link.click();
URL.revokeObjectURL(url);
}
}
export const remoteStore = new RemoteStore(authService);

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export class Router {
#defaultPath: string;
#onMatch: (
routeName: string,
routeMatch: RegExpMatchArray,
params: string,
) => void;
#excludedPaths: string[] = [];
#routes: Route[] = [];
#currentRoute = "";
constructor(
defaultPath: string,
onMatch: (
routeName: string,
routeMatch: RegExpMatchArray,
params: string,
) => void,
) {
this.#defaultPath = defaultPath;
this.#onMatch = onMatch;
}
getCurrentRoute() {
return this.#currentRoute;
}
addRoute(route: Route) {
this.#routes.push(route);
}
excludePath(path: string) {
this.#excludedPaths.push(path);
}
shouldIntercept(url: string) {
const path = new URL(url).pathname;
return !this.#excludedPaths.includes(path);
}
handleNavigation(urlString: string) {
const url = new URL(urlString);
for (const route of this.#routes) {
const match = url.pathname.match(route.matcher);
if (match) {
this.#currentRoute = route.name;
try {
this.#onMatch(route.name, match, url.search);
} catch (err) {
console.error(err);
if (url.pathname !== this.#defaultPath) {
window.navigation.navigate(this.#defaultPath);
}
}
return;
}
}
console.error(`no match for path ${url}`);
if (url.pathname !== this.#defaultPath) {
window.navigation.navigate(this.#defaultPath);
}
}
}
export interface Route {
name: string;
matcher: RegExp;
}

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import { Card, DeckFrequency, Scheduling } from "../types/data.types.js";
import { randomIntBetween } from "../utils/utils.js";
export class Scheduler {
newScheduling(): Scheduling {
return {
easeFactor: 0,
streak: 0,
interval: 0,
nextTrain: Temporal.Now.plainDateISO(),
};
}
daysUntilTrain(scheduling: Scheduling) {
return Math.max(
Temporal.Now.plainDateISO().until(scheduling.nextTrain).days,
0,
);
}
isDue(scheduling: Scheduling) {
return this.daysUntilTrain(scheduling) === 0;
}
getTrainingStack(cards: Card[]): Card[] {
return cards
.filter((card) => this.isDue(card.scheduling))
.toSorted(compare);
}
updateScheduling(
scheduling: Scheduling,
frequency: DeckFrequency,
success: boolean,
): Scheduling {
const { initialEaseFactor, firstInterval, secondInterval, maxInterval } =
frequencySettings[frequency];
const score = success ? 5 : 0;
let easeFactor = scheduling.lastTrain
? scheduling.easeFactor
: initialEaseFactor;
easeFactor += 0.1 - (5 - score) * (0.08 + (5 - score) * 0.02);
easeFactor = Math.max(easeFactor, 1.3);
easeFactor = +easeFactor.toFixed(1);
let interval: number, streak: number;
if (success) {
if (scheduling.streak === 0) {
interval = firstInterval;
} else if (scheduling.streak === 1) {
interval = secondInterval + randomIntBetween(-1, 1);
} else {
interval = Math.round(scheduling.interval * easeFactor);
if (interval > maxInterval) {
interval = maxInterval + randomIntBetween(-2, 2);
} else {
interval = interval + randomIntBetween(-2, 2);
interval = Math.max(scheduling.interval + 1, interval);
}
}
streak = scheduling.streak + 1;
} else {
interval = 0;
streak = 0;
}
return {
easeFactor,
streak,
interval,
lastTrain: Temporal.Now.plainDateISO(),
nextTrain: Temporal.Now.plainDateISO().add({ days: interval }),
};
}
}
const frequencySettings = {
low: {
initialEaseFactor: 2.5,
firstInterval: 1,
secondInterval: 6,
maxInterval: 365,
},
medium: {
initialEaseFactor: 2,
firstInterval: 1,
secondInterval: 5,
maxInterval: 180,
},
high: {
initialEaseFactor: 1.5,
firstInterval: 1,
secondInterval: 4,
maxInterval: 90,
},
};
function compare(a: Card, b: Card) {
const lastTrainA =
a.scheduling.lastTrain ?? Temporal.Now.plainDateISO().add({ days: 1 });
const lastTrainB =
b.scheduling.lastTrain ?? Temporal.Now.plainDateISO().add({ days: 1 });
const compareResult = Temporal.PlainDate.compare(lastTrainA, lastTrainB);
return compareResult === 0 ? Math.random() - 0.5 : compareResult;
}
export const scheduler = new Scheduler();

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import { UnauthenticatedError } from "../shared/errors.js";
import { TypedEvent } from "../utils/TypedEvent.js";
import { debounce } from "../utils/utils.js";
import { WatchValue } from "../utils/WatchValue.js";
import { AuthService, authService } from "./AuthService.js";
import { AppData, DataChangeEvent, dataStore, DataStore } from "./DataStore.js";
import { getInitialData } from "./initialData.js";
import { localStore, LocalStore } from "./LocalStore.js";
import { remoteStore, RemoteStore } from "./RemoteStore.js";
export class SyncManager extends EventTarget {
#dataStore: DataStore;
#localStore: LocalStore;
#remoteStore: RemoteStore;
#authService: AuthService;
#isSyncing = false;
#syncFailure = new WatchValue<string | undefined>(undefined, (value) =>
this.#onSyncFailureChange(value),
);
constructor(
dataStore: DataStore,
localStore: LocalStore,
remoteStore: RemoteStore,
authService: AuthService,
) {
super();
this.#dataStore = dataStore;
this.#localStore = localStore;
this.#remoteStore = remoteStore;
this.#authService = authService;
}
async initApp() {
const localData = this.#localStore.get();
if (localData) {
this.#dataStore.resetData(localData, "local");
} else {
this.#setInitialData();
}
setInterval(async () => {
if (this.#dataStore.data.changes.length > 0) {
await this.syncWithRemote();
}
}, 10_000);
}
async syncWithRemote() {
if (!this.isLoggedIn()) {
return;
}
await this.#syncBlock(() => this.#syncWithRemoteNoBlock());
}
async login(email: string, password: string) {
await this.#syncBlock(async () => {
await this.#authService.login(email, password);
const appData = await this.#remoteStore.getAppData();
this.#dataStore.resetData({ appData, changes: [] }, "remote");
});
}
async signUp(email: string, password: string) {
await this.#syncBlock(async () => {
await this.#authService.signUp(email, password);
await this.#syncWithRemoteNoBlock();
});
}
logout() {
this.#authService.logout();
this.#localStore.reset();
this.#setInitialData();
this.#syncFailure.set(undefined);
}
async renewToken(password: string) {
await this.#authService.login(this.#authService.getEmail(), password);
await this.syncWithRemote();
}
isLoggedIn() {
return this.#authService.isLoggedIn();
}
getSyncFailure() {
return this.#syncFailure.value;
}
listenToChanges() {
const debouncedSyncWithRemote = debounce(() => this.syncWithRemote(), 1000);
this.#dataStore.addEventListener("change", (e) => {
const { data, origin } = (e as DataChangeEvent).detail;
if (origin !== "local") {
this.#localStore.store(data);
}
if (origin !== "remote") {
debouncedSyncWithRemote();
}
});
}
#setInitialData() {
this.#dataStore.resetData({
appData: { cards: [], decks: [] },
changes: [],
});
const { decks, cards } = getInitialData();
for (const deck of decks) {
this.#dataStore.addDeck(deck);
}
for (const card of cards) {
this.#dataStore.addCard(card);
}
}
async #syncWithRemoteNoBlock() {
const { appData, changes } = this.#dataStore.data;
let updatedData: AppData;
if (changes.length > 0) {
this.#dataStore.resetChanges("remote");
try {
updatedData = await this.#remoteStore.sendChanges({
appData,
changes,
});
this.#syncFailure.set(undefined);
} catch (error) {
this.#dataStore.addChanges(changes, "remote");
this.#syncFailure.set(
error instanceof UnauthenticatedError
? "unauthenticated"
: "unknown_error",
);
return;
}
} else {
try {
updatedData = await this.#remoteStore.getAppData();
this.#syncFailure.set(undefined);
} catch (error) {
this.#syncFailure.set(
error instanceof UnauthenticatedError
? "unauthenticated"
: "unknown_error",
);
return;
}
}
if (this.#dataStore.data.changes.length === 0) {
this.#dataStore.resetData(
{ appData: updatedData, changes: [] },
"remote",
);
}
}
async #syncBlock<T>(callback: () => Promise<T>) {
if (this.#isSyncing) {
return;
}
try {
this.#isSyncing = true;
return await callback();
} finally {
this.#isSyncing = false;
}
}
#onSyncFailureChange(error?: string) {
this.dispatchEvent(
error
? new CustomEvent("sync-failure", { detail: error })
: new CustomEvent("sync-success"),
);
}
}
export const syncManager = new SyncManager(
dataStore,
localStore,
remoteStore,
authService,
);
export type SyncFailureEvent = TypedEvent<SyncManager, string>;
export type SyncSuccessEvent = TypedEvent<SyncManager>;

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import { createRandomId } from "../utils/utils.js";
import { AppData } from "./DataStore.js";
import { scheduler } from "./Scheduler.js";
export function getInitialData(): AppData {
const deckId = createRandomId();
return {
decks: [
{
id: deckId,
name: "exemple de paquet 🃏",
frequency: "medium",
},
],
cards: [
{
id: createRandomId(),
deckId,
front:
"quelle carte du tarot de marseille ne porte pas de nom, uniquement un numéro ?",
back: "la lame XIII, qui représente la mort",
scheduling: scheduler.newScheduling(),
},
{
id: createRandomId(),
deckId,
front:
"dans un jeu de cartes classique, quel est le nom de la dame de cœur ?",
back: "Judith",
scheduling: scheduler.newScheduling(),
},
{
id: createRandomId(),
deckId,
front:
"dans un tirage de tarot de marseille, comment interpréter la maison dieu ?",
back: "à l’endroit : changement, remise en question, reconstruction\n\nà l’envers : échec, rupture, illusion",
scheduling: scheduler.newScheduling(),
},
{
id: createRandomId(),
deckId,
front:
"quelles sont les 4 enseignes d’un jeu de carte traditionnel allemand ?",
back: "gland\nfeuille\ncœur\ngrelot",
scheduling: scheduler.newScheduling(),
},
{
id: createRandomId(),
deckId,
front:
"quels sont les 3 jeux mentionnés sur la plupart des paquets de carte à jouer ?",
back: "poker\nbridge\ncanasta",
scheduling: scheduler.newScheduling(),
},
{
id: createRandomId(),
deckId,
front: "donner les combinaisons du poker dans l’ordre de valeur",
back: "carte isolée\n\npaire\n\ndouble paire\n\nbrelan\n\nsuite\n\ncouleur\n\nfull\n\ncarré\n\nquinte flush\n\nquinte flush royale",
scheduling: scheduler.newScheduling(),
},
{
id: createRandomId(),
deckId,
front:
"de quand et où viennent les cartes à jouer les plus anciennes ?",
back: "chine, XIIIe siècle",
scheduling: scheduler.newScheduling(),
},
{
id: createRandomId(),
deckId,
front:
"au black jack, le croupier tire des cartes jusqu’à atteindre quelle valeur minimale ?",
back: "17",
scheduling: scheduler.newScheduling(),
},
{
id: createRandomId(),
deckId,
front:
"dans le jeu de la dame de pique, combien de points vaut cette dame ?",
back: "13 points",
scheduling: scheduler.newScheduling(),
},
],
};
}

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import { LitElement } from "lit";
export class FLitElement extends LitElement {
#abortController = new AbortController();
get disconnectedSignal() {
return this.#abortController.signal;
}
connectedCallback() {
super.connectedCallback();
document.addEventListener(
"visibilitychange",
() => {
if (document.visibilityState === "visible") {
this.onTabVisible();
}
},
{ signal: this.disconnectedSignal },
);
}
disconnectedCallback() {
super.disconnectedCallback();
this.#abortController.abort();
}
onTabVisible() {}
}

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export class UnauthenticatedError extends Error {}
interface NetworkErrorDetails {
status: number;
message: string;
data: unknown;
}
export class NetworkError extends Error {
details: NetworkErrorDetails;
constructor(message: string, details: NetworkErrorDetails) {
super(message);
this.details = details;
}
}
export async function handleNetworkError(result: Response) {
if (!result.ok) {
if (result.status === 401) {
throw new UnauthenticatedError();
}
if (result.headers.get("Content-Type")?.startsWith("application/json")) {
const body = await result.json();
if (isNetworkErrorDetails(body)) {
throw new NetworkError(body.message, body);
}
}
throw new Error(await result.text());
}
}
function isNetworkErrorDetails(body: unknown): body is NetworkErrorDetails {
return (
typeof body === "object" &&
body !== null &&
"status" in body &&
typeof body.status === "number" &&
"message" in body &&
typeof body.message === "string"
);
}

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export function fitText(elt: HTMLElement | null, borderPadding = 0) {
const minSize = 1.5;
const maxSize = 3;
const step = 0.25;
if (!elt) return;
requestAnimationFrame(() => {
elt.style.overflowWrap = "normal";
elt.style.width = "fit-content";
elt.style.maxWidth = "none";
let fontSize = maxSize;
elt.style.fontSize = `${fontSize}rem`;
while (!fitInContainer(elt, borderPadding) && fontSize > minSize) {
fontSize = fontSize - step;
elt.style.fontSize = `${fontSize}rem`;
}
elt.style.overflowWrap = "";
elt.style.width = "";
elt.style.maxWidth = "";
});
}
function fitInContainer(elt: HTMLElement, borderPadding: number) {
// space for padding and border
return (
elt.clientHeight + borderPadding <= elt.parentElement!.clientHeight &&
elt.clientWidth + borderPadding <= elt.parentElement!.clientWidth
);
}

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import { css } from "lit";
export const globalStyle = css`
*,
*::before,
*::after {
box-sizing: border-box;
}
:host {
display: block;
}
h1,
h2,
h3,
h4,
h5,
h6 {
font-family: var(--title-font);
text-align: center;
margin: 0;
}
a.no-style,
a.no-style:hover,
a.no-style:visited,
a.no-style:active {
color: inherit;
text-decoration: var(--no-style-text-decoration);
}
button {
background: none;
color: inherit;
border: none;
padding: 0;
font: inherit;
cursor: pointer;
outline: inherit;
}
input[type="text"],
input[type="email"],
input[type="password"] {
all: unset;
}
input[type="text"],
input[type="email"],
input[type="password"],
[contenteditable] {
border: 0.1rem dashed var(--border-color);
border-radius: 0.5rem;
cursor: text;
padding: 1rem;
&:focus {
outline: none;
}
}
.text-button,
.symbol-button {
color: var(--text-color-reverse);
text-decoration: none;
border: var(--small-border);
box-shadow: var(--small-shadow);
font-family: var(--title-font);
font-weight: 700;
height: 3.5rem;
display: inline-flex;
align-items: center;
justify-content: center;
gap: 1rem;
transition: all 0.2s;
> f-template-outlet {
height: 100%;
aspect-ratio: 1;
}
&:hover,
&:visited,
&:active {
color: var(--text-color-reverse);
text-decoration: none;
}
&[disabled] {
cursor: default;
filter: grayscale(100%);
}
&:not([disabled]):hover {
transform: translate(-0.2rem, -0.2rem);
}
&.primary {
background-color: var(--primary-color);
}
&.accent {
color: black;
background-color: var(--accent-color);
}
&.danger {
background-color: var(--danger-color);
}
}
.text-button {
padding: 0.3rem 1rem;
}
.symbol-button {
width: 3.5rem;
padding: 0.3rem;
}
.card {
background-color: var(--surface-color);
border: var(--big-border);
box-shadow: var(--big-shadow);
display: flex;
flex-direction: column;
header,
section,
footer {
padding: 1rem;
}
header {
border-bottom: var(--big-border);
}
section {
flex-grow: 1;
}
&.small {
border: var(--small-border);
box-shadow: var(--small-shadow);
header {
border-bottom: var(--small-border);
}
}
}
`;

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import { AppData } from "../services/DataStore.js";
export function instanciateData(data: AppData): AppData {
return {
...data,
decks: data.decks.map((deck) => ({
...deck,
frequency: deck.frequency ?? "medium",
})),
cards: data.cards.map((card) => ({
...card,
scheduling: {
...card.scheduling,
lastTrain: card.scheduling.lastTrain
? Temporal.PlainDate.from(card.scheduling.lastTrain)
: undefined,
nextTrain: Temporal.PlainDate.from(card.scheduling.nextTrain),
},
})),
};
}

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export function redirectToHome() {
window.navigation.navigate("/");
}

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src/front/shared/pageStyle.ts Normal file
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import { css } from "lit";
export const pageStyle = css`
:host {
display: flex;
flex-direction: row-reverse;
> *:not(f-menu) {
flex-grow: 1;
}
}
`;

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import { NetworkError } from "./errors.js";
export function showErrorModal(error: unknown) {
const nodes: HTMLElement[] = [];
const title = document.createElement("h2");
title.textContent = "échec";
nodes.push(title);
if (error instanceof NetworkError) {
const content = document.createElement("p");
content.textContent = error.message;
nodes.push(content);
if (error.details.data) {
const pre = document.createElement("pre");
pre.textContent = JSON.stringify(error.details.data, undefined, 2);
nodes.push(pre);
}
} else {
const content = document.createElement("p");
content.textContent =
error instanceof Error ? error.message : String(error);
nodes.push(content);
}
showModalWith(...nodes);
}
export function showModal(text: string) {
const content = document.createElement("p");
content.textContent = text;
showModalWith(content);
}
function showModalWith(...nodes: HTMLElement[]) {
const dialog = document.getElementById("global-modal") as HTMLDialogElement;
dialog.replaceChildren(...nodes);
dialog.showModal();
}

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export interface Deck {
id: string;
name: string;
frequency: DeckFrequency;
}
export type DeckFrequency = "low" | "medium" | "high";
export interface Card {
id: string;
deckId: string;
front: string;
back: string;
scheduling: Scheduling;
}
export interface Scheduling {
easeFactor: number;
streak: number;
interval: number;
lastTrain?: Temporal.PlainDate;
nextTrain: Temporal.PlainDate;
}

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src/front/utils/TypedEvent.ts Normal file
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export type TypedEvent<T extends EventTarget, D = unknown> = CustomEvent<D> & {
target: T;
};

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src/front/utils/WatchValue.ts Normal file
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export class WatchValue<T, ORIGIN = unknown> {
#value: T;
#onUpdate: (value: T, origin?: ORIGIN) => void;
constructor(initialValue: T, onUpdate: (value: T, origin?: ORIGIN) => void) {
this.#value = initialValue;
this.#onUpdate = onUpdate;
}
get value() {
return this.#value;
}
set(newValue: T, origin?: ORIGIN) {
if (this.#value !== newValue) {
this.#value = newValue;
this.#onUpdate(newValue, origin);
}
}
trigger() {
this.#onUpdate(this.#value);
}
}

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src/front/utils/utils.ts Normal file
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export function createRandomId() {
return (
crypto
.getRandomValues(new Uint8Array(16))
// @ts-ignore 🤷
.toBase64({ alphabet: "base64url", omitPadding: true })
);
}
export function randomIntBetween(min: number, max: number) {
return Math.floor(Math.random() * (max - min + 1) + min);
}
export function isInInterval(min: number, value: number, max: number) {
return min <= value && value <= max;
}
export function debounce<T extends Array<unknown>>(
callback: (...args: T) => unknown,
wait: number,
) {
let timeoutId: number | undefined = undefined;
return (...args: T) => {
if (timeoutId) {
window.clearTimeout(timeoutId);
timeoutId = window.setTimeout(() => {
callback(...args);
timeoutId = undefined;
}, wait);
} else {
callback(...args);
timeoutId = window.setTimeout(() => {
timeoutId = undefined;
}, wait);
}
};
}
export function durationToString(days: number) {
if (isInInterval(0, days, 1)) {
return `${days} jour`;
}
if (isInInterval(2, days, 10)) {
return `${days} jours`;
}
if (isInInterval(11, days, 24)) {
// 2...3 semaines
// Math.round(11/7) === 2, Math.round(24/7) === 3
return `${Math.round(days / 7)} semaines`;
}
// 1...n mois
return `${Math.round(days / 30)} mois`;
}

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tsconfig.json Normal file
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{
"$schema": "https://www.schemastore.org/tsconfig",
"compilerOptions": {
"rootDir": "./src/front",
"outDir": "./public/lib",
"target": "ES2024",
"strict": true,
"skipLibCheck": true,
"moduleResolution": "nodenext",
"module": "nodenext"
},
"include": ["./src/front"]
}