Starting to put back the server part. Currently the registration and login are almost ready.

server/utils/user.ts

@@ -0,0 +1,34 @@
+import { eq, sql, and } from "drizzle-orm";
+import useDatabase from "~/composables/useDatabase";
+import { userSessionsTable } from "~/db/schema";
+import type { Return } from "~/types/api";
+import type { UserSession, UserSessionRequired } from "~/types/auth";
+
+export function checkSession(e: H3Event<EventRequestHandler>, session: UserSession): Return | undefined
+{
+    const db = useDatabase();
+    
+    if(session.id && session.user?.id)
+    {
+        const sessionId = db.select({ user_id: userSessionsTable.user_id }).from(userSessionsTable).where(and(eq(userSessionsTable.id, sql.placeholder('id')), eq(userSessionsTable.user_id, sql.placeholder('user_id')))).prepare().get({ id: session.id, user_id: session.user.id })
+
+        if(sessionId && sessionId.user_id === session.user?.id)
+        {
+            return { success: true, session };
+        }
+        else
+        {
+            clearUserSession(e);
+            
+            setResponseStatus(e, 406);
+            return { success: false, error: new Error('Vous êtes déjà connecté') };
+        }
+    }
+}
+export function logSession(e: H3Event<EventRequestHandler>, session: UserSessionRequired): UserSessionRequired
+{
+    const db = useDatabase();
+
+    db.insert(userSessionsTable).values({ id: sql.placeholder('id'), user_id: sql.placeholder('user_id'), timestamp: sql.placeholder('timestamp') }).prepare().execute({ id: session.id, user_id: session.user.id, timestamp: new Date()});
+    return session;
+}