fix: update validation logic in useValidation hook and improve error handling in useLogin hook

src/lib/hooks/useValidation.tsx

@@ -1,5 +1,5 @@
 import { useState } from "react"
-import type { z } from "zod"
+import { z } from "zod"
 
 type FormDataValidation = Record<string, FormDataEntryValue>
 
@@ -26,7 +26,8 @@ export const useValidation = <T,>({
 
 		if (!result.success) {
 			//FIXME: Flatten errors, new in zod v4
-			setErrors(result.error.flatten().fieldErrors as T)
+			// setErrors(result.error.flatten().fieldErrors as T)
+			setErrors(z.flattenError(result.error).fieldErrors as T)
 			return false
 		}
 

src/lib/hooks/user/useLogin.tsx

@@ -15,10 +15,15 @@ export const useLogin = () => {
 	})
 	const loginMutation = useMutation({
 		mutationKey: ["login"],
-		mutationFn: async (data: TLoginForm) =>
-			loginUser({
+		mutationFn: async (data: TLoginForm) => {
+			const response = await loginUser({
 				data
-			}),
+			})
+
+			if (response.error) {
+				throw new Error(response.message)
+			}
+		},
 		onMutate: () => {
 			toast.loading("Logging in...", { id: "login" })
 		},
@@ -28,8 +33,8 @@ export const useLogin = () => {
 				to: "/post"
 			})
 		},
-		onError: () => {
-			toast.error("Failed to log in.", { id: "login" })
+		onError: (error) => {
+			toast.error(error.message, { id: "login" })
 		}
 	})
 

src/lib/validation/user.ts

@@ -1,12 +1,12 @@
 import z from "zod"
 
 export const loginFormSchema = z.object({
-	email: z.string("Invalid email address"),
+	email: z.email("Invalid email address"),
 	password: z.string().min(1, "Password must be at least 1 character long")
 })
 
 export const signupFormSchema = z.object({
-	email: z.string("Invalid email address"),
+	email: z.email("Invalid email address"),
 	password: z.string().min(6, "Password must be at least 6 characters long"),
 	redirectUrl: z.string().optional()
 })

src/routes/__root.tsx

@@ -19,7 +19,7 @@ export const Route = createRootRouteWithContext<MyRouterContext>()({
 	beforeLoad: async () => {
 		const user = await getUser()
 		return {
-			user
+			...user
 		}
 	},
 	head: () => ({

src/routes/_authed.tsx

@@ -1,10 +1,10 @@
-import { createFileRoute } from "@tanstack/react-router"
+import { createFileRoute, redirect } from "@tanstack/react-router"
 
 export const Route = createFileRoute("/_authed")({
 	beforeLoad: ({ context }) => {
-		console.log("contextw", context)
-		if (!context?.user) {
+		if (context.error) {
 			throw new Error("Not authenticated")
+			// TODO: Redirect to login page
 		}
 	},
 	errorComponent: ({ error }) => {
@@ -15,7 +15,6 @@ export const Route = createFileRoute("/_authed")({
 				</p>
 			)
 		}
-
 		throw error
 	}
 })

src/routes/login.tsx

@@ -12,7 +12,6 @@ function LoginComp() {
 
 	const handleSubmit = (e: FormEvent<HTMLFormElement>) => {
 		e.preventDefault()
-
 		const formData = new FormData(e.currentTarget)
 
 		login({