feat(auth): add username field to user schema and authentication process

- Updated user schema to include a unique username field.
- Modified authentication logic to support sign-in using either email or username.
- Enhanced sign-up process to require a username and validate its uniqueness.
- Updated login and profile routes to reflect changes in user identification.
- Adjusted frontend forms to accommodate username input alongside email.

drizzle/0009_true_gravity.sql

@@ -0,0 +1,51 @@
+PRAGMA foreign_keys=OFF;--> statement-breakpoint
+ALTER TABLE `user` ADD `username` text;--> statement-breakpoint
+UPDATE `user`
+SET `username` = `name`
+WHERE `username` IS NULL OR trim(`username`) = '';--> statement-breakpoint
+UPDATE `user`
+SET `username` = `username` || '_' || substr(`id`, 1, 6)
+WHERE `id` IN (
+	SELECT u1.`id`
+	FROM `user` u1
+	JOIN `user` u2
+		ON lower(u1.`username`) = lower(u2.`username`)
+		AND u1.`id` > u2.`id`
+);--> statement-breakpoint
+CREATE TABLE `__new_user` (
+	`id` text PRIMARY KEY NOT NULL,
+	`name` text NOT NULL,
+	`username` text NOT NULL,
+	`email` text NOT NULL,
+	`email_verified` integer DEFAULT false NOT NULL,
+	`image` text,
+	`is_admin` integer DEFAULT false NOT NULL,
+	`created_at` integer DEFAULT (cast(unixepoch('subsecond') * 1000 as integer)) NOT NULL,
+	`updated_at` integer DEFAULT (cast(unixepoch('subsecond') * 1000 as integer)) NOT NULL
+);--> statement-breakpoint
+INSERT INTO `__new_user` (
+	`id`,
+	`name`,
+	`username`,
+	`email`,
+	`email_verified`,
+	`image`,
+	`is_admin`,
+	`created_at`,
+	`updated_at`
+)
+SELECT
+	`id`,
+	`name`,
+	`username`,
+	`email`,
+	`email_verified`,
+	`image`,
+	`is_admin`,
+	`created_at`,
+	`updated_at`
+FROM `user`;--> statement-breakpoint
+DROP TABLE `user`;--> statement-breakpoint
+ALTER TABLE `__new_user` RENAME TO `user`;--> statement-breakpoint
+CREATE UNIQUE INDEX `user_username_unique` ON `user` (`username`);--> statement-breakpoint
+PRAGMA foreign_keys=ON;

drizzle/meta/_journal.json

@@ -64,6 +64,13 @@
       "when": 1772821532270,
       "tag": "0008_skinny_warpath",
       "breakpoints": true
+    },
+    {
+      "idx": 9,
+      "version": "6",
+      "when": 1772822823122,
+      "tag": "0009_true_gravity",
+      "breakpoints": true
     }
   ]
 }

src/lib/server/auth.ts

@@ -9,6 +9,15 @@ export const auth = betterAuth({
 	baseURL: env.ORIGIN,
 	secret: env.BETTER_AUTH_SECRET || 'secret',
 	database: drizzleAdapter(db, { provider: 'sqlite' }),
+	user: {
+		additionalFields: {
+			username: {
+				type: 'string',
+				required: true,
+				unique: true
+			}
+		}
+	},
 	emailAndPassword: { enabled: true },
 	plugins: [sveltekitCookies(getRequestEvent)] // make sure this is the last plugin in the array
 });

src/lib/server/db/auth.schema.ts

@@ -4,6 +4,7 @@ import { sqliteTable, text, integer, index } from "drizzle-orm/sqlite-core";
 export const user = sqliteTable("user", {
   id: text("id").primaryKey(),
   name: text("name").notNull(),
+  username: text("username").notNull().unique(),
   email: text("email").notNull().unique(),
   emailVerified: integer("email_verified", { mode: "boolean" })
     .default(false)

src/routes/(game)/login/+page.server.ts

@@ -2,7 +2,10 @@ import { fail, redirect } from '@sveltejs/kit';
 import type { Actions } from './$types';
 import type { PageServerLoad } from './$types';
 import { auth } from '$lib/server/auth';
+import { db } from '$lib/server/db';
+import { user } from '$lib/server/db/schema';
 import { APIError } from 'better-auth/api';
+import { sql } from 'drizzle-orm';
 
 export const load: PageServerLoad = async (event) => {
 	if (event.locals.user) {
@@ -14,9 +17,28 @@ export const load: PageServerLoad = async (event) => {
 export const actions: Actions = {
 	signInEmail: async (event) => {
 		const formData = await event.request.formData();
-		const email = formData.get('email')?.toString() ?? '';
+		const identifier = formData.get('identifier')?.toString().trim() ?? formData.get('email')?.toString().trim() ?? '';
 		const password = formData.get('password')?.toString() ?? '';
 
+		if (!identifier) {
+			return fail(400, { message: 'Email ou nom d\'utilisateur requis' });
+		}
+
+		let email = identifier;
+		if (!identifier.includes('@')) {
+			const [foundUser] = await db
+				.select({ email: user.email })
+				.from(user)
+				.where(sql`lower(${user.username}) = ${identifier.toLowerCase()}`)
+				.limit(1);
+
+			if (!foundUser) {
+				return fail(400, { message: 'Identifiants invalides' });
+			}
+
+			email = foundUser.email;
+		}
+
 		try {
 			await auth.api.signInEmail({
 				body: {
@@ -38,7 +60,33 @@ export const actions: Actions = {
 		const formData = await event.request.formData();
 		const email = formData.get('email')?.toString() ?? '';
 		const password = formData.get('password')?.toString() ?? '';
+		const confirmPassword = formData.get('confirmPassword')?.toString() ?? '';
 		const name = formData.get('name')?.toString() ?? '';
+		const username = formData.get('username')?.toString().trim() ?? '';
+
+		if (!username) {
+			return fail(400, { message: 'Nom d\'utilisateur requis' });
+		}
+
+		if (!/^[a-zA-Z0-9._-]{3,30}$/.test(username)) {
+			return fail(400, {
+				message: "Le nom d'utilisateur doit contenir 3 à 30 caractères (lettres, chiffres, ., _, -)"
+			});
+		}
+
+		const [existingUsername] = await db
+			.select({ id: user.id })
+			.from(user)
+			.where(sql`lower(${user.username}) = ${username.toLowerCase()}`)
+			.limit(1);
+
+		if (existingUsername) {
+			return fail(400, { message: "Ce nom d'utilisateur est déjà pris" });
+		}
+
+		if (password !== confirmPassword) {
+			return fail(400, { message: 'Les mots de passe ne correspondent pas' });
+		}
 
 		try {
 			await auth.api.signUpEmail({
@@ -46,6 +94,7 @@ export const actions: Actions = {
 					email,
 					password,
 					name,
+					username,
 					callbackURL: '/auth/verification-success'
 				}
 			});

src/routes/(game)/login/+page.svelte

@@ -6,6 +6,7 @@
 
 	let isSignUp = false;
 	let name = '';
+	let username = '';
 	let email = '';
 	let password = '';
 	let confirmPassword = '';
@@ -14,6 +15,7 @@
 	const handleToggle = () => {
 		isSignUp = !isSignUp;
 		name = '';
+		username = '';
 		email = '';
 		password = '';
 		confirmPassword = '';
@@ -75,18 +77,36 @@
 						</div>
 					{/if}
 
-					<!-- Email Field -->
+					<!-- Username Field (Sign Up Only) -->
+					{#if isSignUp}
+						<div>
+							<label for="username" class="block text-sm font-semibold uppercase tracking-[0.2em] text-amber-100">
+								Nom d'utilisateur
+							</label>
+							<input
+								id="username"
+								type="text"
+								name="username"
+								bind:value={username}
+								required
+								placeholder="ex: luffy_gear5"
+								class="mt-3 w-full rounded-lg border border-white/10 bg-white/5 px-4 py-3 text-white placeholder-slate-500 transition focus:border-amber-300 focus:outline-none focus:ring-2 focus:ring-amber-300/30"
+							/>
+						</div>
+					{/if}
+
+					<!-- Email / Username Field -->
 					<div>
-						<label for="email" class="block text-sm font-semibold uppercase tracking-[0.2em] text-amber-100">
-							E-mail
+						<label for="identifier" class="block text-sm font-semibold uppercase tracking-[0.2em] text-amber-100">
+							{isSignUp ? 'E-mail' : 'E-mail ou nom d\'utilisateur'}
 						</label>
 						<input
-							id="email"
-							type="email"
-							name="email"
+							id="identifier"
+							type={isSignUp ? 'email' : 'text'}
+							name={isSignUp ? 'email' : 'identifier'}
 							bind:value={email}
 							required
-							placeholder="votremail@email.com"
+							placeholder={isSignUp ? 'votremail@email.com' : 'votremail@email.com ou luffy_gear5'}
 							class="mt-3 w-full rounded-lg border border-white/10 bg-white/5 px-4 py-3 text-white placeholder-slate-500 transition focus:border-amber-300 focus:outline-none focus:ring-2 focus:ring-amber-300/30"
 						/>
 					</div>

src/routes/(game)/profile/+page.server.ts

@@ -3,7 +3,7 @@ import type { Actions, PageServerLoad } from './$types';
 import { auth } from '$lib/server/auth';
 import { db } from '$lib/server/db';
 import { session, userCharacterHistory, characterHistory, character, friendship, user } from '$lib/server/db/schema';
-import { and, desc, eq, or } from 'drizzle-orm';
+import { and, desc, eq, or, sql } from 'drizzle-orm';
 import { APIError } from 'better-auth/api';
 
 export const load: PageServerLoad = async (event) => {
@@ -42,7 +42,7 @@ export const load: PageServerLoad = async (event) => {
 			createdAt: friendship.createdAt,
 			requesterId: friendship.requesterId,
 			requesterName: user.name,
-			requesterEmail: user.email,
+			requesterUsername: user.username,
 			requesterImage: user.image
 		})
 		.from(friendship)
@@ -56,7 +56,7 @@ export const load: PageServerLoad = async (event) => {
 			createdAt: friendship.createdAt,
 			addresseeId: friendship.addresseeId,
 			addresseeName: user.name,
-			addresseeEmail: user.email,
+			addresseeUsername: user.username,
 			addresseeImage: user.image
 		})
 		.from(friendship)
@@ -70,7 +70,7 @@ export const load: PageServerLoad = async (event) => {
 			createdAt: friendship.createdAt,
 			friendId: friendship.addresseeId,
 			friendName: user.name,
-			friendEmail: user.email,
+			friendUsername: user.username,
 			friendImage: user.image
 		})
 		.from(friendship)
@@ -83,7 +83,7 @@ export const load: PageServerLoad = async (event) => {
 			createdAt: friendship.createdAt,
 			friendId: friendship.requesterId,
 			friendName: user.name,
-			friendEmail: user.email,
+			friendUsername: user.username,
 			friendImage: user.image
 		})
 		.from(friendship)
@@ -201,25 +201,27 @@ export const actions: Actions = {
 		}
 
 		const formData = await event.request.formData();
-		const friendEmail = formData.get('friendEmail')?.toString().trim().toLowerCase() ?? '';
+		const friendUsername = formData.get('friendUsername')?.toString().trim() ?? '';
 
-		if (!friendEmail) {
-			return fail(400, { message: 'Email requis pour envoyer une demande' });
+		if (!friendUsername) {
+			return fail(400, { message: 'Nom d\'utilisateur requis pour envoyer une demande' });
 		}
 
 		const me = event.locals.user;
-		if (friendEmail === me.email?.toLowerCase()) {
+		const myUsername = (me as { username?: string }).username;
+
+		if (myUsername && friendUsername.toLowerCase() === myUsername.toLowerCase()) {
 			return fail(400, { message: 'Tu ne peux pas t\'ajouter toi-même' });
 		}
 
 		const [targetUser] = await db
-			.select({ id: user.id, email: user.email })
+			.select({ id: user.id, username: user.username })
 			.from(user)
-			.where(eq(user.email, friendEmail))
+			.where(sql`lower(${user.username}) = ${friendUsername.toLowerCase()}`)
 			.limit(1);
 
 		if (!targetUser) {
-			return fail(404, { message: 'Aucun utilisateur trouvé avec cet email' });
+			return fail(404, { message: 'Aucun utilisateur trouvé avec ce nom d\'utilisateur' });
 		}
 
 		const [existing] = await db

src/routes/(game)/profile/+page.svelte

@@ -12,7 +12,7 @@
 	let isLoading = $state(false);
 	let activeTab = $state<'profile' | 'password' | 'sessions' | 'daily' | 'friends'>('profile');
 	let name = $state('');
-	let friendEmail = $state('');
+	let friendUsername = $state('');
 	let showSuccess = $state(false);
 	let oldPassword = $state('');
 	let newPassword = $state('');
@@ -222,23 +222,23 @@
 						isLoading = true;
 						return async ({ update }) => {
 							isLoading = false;
-							friendEmail = '';
+							friendUsername = '';
 							await update();
 						};
 					}}
 					class="mb-8 space-y-3"
 				>
-					<label for="friendEmail" class="block text-sm font-semibold uppercase tracking-[0.2em] text-amber-100">
-						Ajouter un ami par email
+					<label for="friendUsername" class="block text-sm font-semibold uppercase tracking-[0.2em] text-amber-100">
+						Ajouter un ami par nom d'utilisateur
 					</label>
 					<div class="flex gap-2">
 						<input
-							id="friendEmail"
-							type="email"
-							name="friendEmail"
+							id="friendUsername"
+							type="text"
+							name="friendUsername"
 							required
-							bind:value={friendEmail}
-							placeholder="ami@email.com"
+							bind:value={friendUsername}
+							placeholder="ex: luffy_gear5"
 							class="w-full rounded-lg border border-white/10 bg-white/5 px-4 py-3 text-white placeholder-slate-500 transition focus:border-amber-300 focus:outline-none focus:ring-2 focus:ring-amber-300/30"
 						/>
 						<button
@@ -265,7 +265,7 @@
 									<div class="flex flex-wrap items-center justify-between gap-3 rounded-lg border border-white/10 bg-white/5 px-4 py-3">
 										<div>
 											<p class="font-semibold text-white">{req.requesterName}</p>
-											<p class="text-xs text-slate-400">{req.requesterEmail}</p>
+												<p class="text-xs text-slate-400">@{req.requesterUsername}</p>
 										</div>
 										<div class="flex gap-2">
 											<form method="POST" action="?/acceptFriendRequest" use:enhance>
@@ -293,7 +293,7 @@
 									<div class="flex flex-wrap items-center justify-between gap-3 rounded-lg border border-white/10 bg-white/5 px-4 py-3">
 										<div>
 											<p class="font-semibold text-white">{req.addresseeName}</p>
-											<p class="text-xs text-slate-400">{req.addresseeEmail}</p>
+												<p class="text-xs text-slate-400">@{req.addresseeUsername}</p>
 										</div>
 										<form method="POST" action="?/cancelFriendRequest" use:enhance>
 											<input type="hidden" name="friendshipId" value={req.id} />
@@ -315,7 +315,7 @@
 									<div class="flex flex-wrap items-center justify-between gap-3 rounded-lg border border-white/10 bg-white/5 px-4 py-3">
 										<div>
 											<p class="font-semibold text-white">{friend.friendName}</p>
-											<p class="text-xs text-slate-400">{friend.friendEmail}</p>
+												<p class="text-xs text-slate-400">@{friend.friendUsername}</p>
 										</div>
 										<form method="POST" action="?/removeFriend" use:enhance>
 											<input type="hidden" name="friendshipId" value={friend.id} />