feat: working login and logged out

routes/sign-in.tsx

@@ -1,8 +1,7 @@
-import { getCookies, setCookie } from "@std/http/cookie";
 import { z } from "zod";
 import { backendSignIn } from "../backend/sign-in.ts";
 import { SignInForm } from "../components/SignInForm.tsx";
-import { define } from "../utils.ts";
+import { define, isLoggedIn, setAuthCookie } from "../utils.ts";
 
 const loginSchema = z.object({
   email: z.string(),
@@ -11,13 +10,12 @@ const loginSchema = z.object({
 
 export const handler = define.handlers({
   GET(ctx) {
-    const cookies = getCookies(ctx.req.headers);
-    const authCookie = cookies["auth"];
-    if (authCookie === "ok") {
+    if (isLoggedIn(ctx.req)) {
       const url = new URL(ctx.req.url);
       url.pathname = "/dashboard";
       return Response.redirect(url, 303);
     }
+
     return {
       data: {
         email: "",
@@ -52,17 +50,10 @@ export const handler = define.handlers({
       };
     }
 
-    const url = new URL(ctx.req.url);
     const headers = new Headers();
-    setCookie(headers, {
-      name: "auth",
-      value: "ok",
-      maxAge: 120,
-      sameSite: "Lax",
-      domain: url.hostname,
-      path: "/",
-      secure: true,
-    });
+    setAuthCookie(ctx.req, headers);
+
+    const url = new URL(ctx.req.url);
     url.pathname = "/dashboard";
     headers.set("location", url.toString());
     return new Response(null, {