fully implemented email authentication

pages/register.tsx

@@ -1,35 +1,60 @@
 import Link from "next/link";
 import { useState } from "react";
-import { useRouter } from "next/router";
 import { toast } from "react-hot-toast";
 import SubmitButton from "@/components/SubmitButton";
+import { signIn } from "next-auth/react";
+import EmailConfirmaion from "@/components/Modal/EmailConfirmaion";
 
-interface FormData {
+const EmailProvider = process.env.NEXT_PUBLIC_EMAIL_PROVIDER;
+
+type FormData = {
   name: string;
   username: string;
+  email?: string;
   password: string;
   passwordConfirmation: string;
-}
+};
 
 export default function Register() {
-  const router = useRouter();
-
   const [submitLoader, setSubmitLoader] = useState(false);
+  const [showConfirmation, setShowConfirmation] = useState(false);
 
   const [form, setForm] = useState<FormData>({
     name: "",
     username: "",
+    email: EmailProvider ? "" : undefined,
     password: "",
     passwordConfirmation: "",
   });
 
   async function registerUser() {
-    if (
-      form.name !== "" &&
-      form.username !== "" &&
-      form.password !== "" &&
-      form.passwordConfirmation !== ""
-    ) {
+    const checkHasEmptyFields = () => {
+      if (EmailProvider) {
+        return (
+          form.name !== "" &&
+          form.username !== "" &&
+          form.email !== "" &&
+          form.password !== "" &&
+          form.passwordConfirmation !== ""
+        );
+      } else {
+        return (
+          form.name !== "" &&
+          form.username !== "" &&
+          form.password !== "" &&
+          form.passwordConfirmation !== ""
+        );
+      }
+    };
+
+    const sendConfirmation = async () => {
+      await signIn("email", {
+        email: form.email,
+        redirect: false,
+      });
+    };
+
+    if (checkHasEmptyFields()) {
       if (form.password === form.passwordConfirmation) {
         const { passwordConfirmation, ...request } = form;
 
@@ -48,20 +73,19 @@ export default function Register() {
         const data = await response.json();
 
         toast.dismiss(load);
-
         setSubmitLoader(false);
 
         if (response.ok) {
-          setForm({
-            name: "",
-            username: "",
-            password: "",
-            passwordConfirmation: "",
-          });
+          if (form.email) {
+            await sendConfirmation();
+            setShowConfirmation(true);
+          }
 
-          toast.success("User Created!");
-
-          router.push("/login");
+          toast.success(
+            EmailProvider
+              ? "User Created! Please check you email."
+              : "User Created!"
+          );
         } else {
           toast.error(data.response);
         }
@@ -75,7 +99,10 @@ export default function Register() {
 
   return (
     <>
-      <p className="text-xl font-bold text-center my-10 text-sky-500">
+      {showConfirmation && form.email ? (
+        <EmailConfirmaion email={form.email} />
+      ) : undefined}
+      <p className="text-xl font-bold text-center my-10 mb-3 text-sky-500">
         Linkwarden
       </p>
       <div className="p-5 mx-auto flex flex-col gap-3 justify-between sm:w-[28rem] w-80 bg-slate-50 rounded-md border border-sky-100">
@@ -100,12 +127,26 @@ export default function Register() {
 
         <input
           type="text"
-          placeholder="johnny@example.com"
+          placeholder="john"
           value={form.username}
           onChange={(e) => setForm({ ...form, username: e.target.value })}
           className="w-full rounded-md p-3 mx-auto border-sky-100 border-solid border outline-none focus:border-sky-500 duration-100"
         />
 
+        {EmailProvider ? (
+          <>
+            <p className="text-sm text-sky-500 w-fit font-semibold">Email</p>
+
+            <input
+              type="email"
+              placeholder="johnny@example.com"
+              value={form.email}
+              onChange={(e) => setForm({ ...form, email: e.target.value })}
+              className="w-full rounded-md p-3 mx-auto border-sky-100 border-solid border outline-none focus:border-sky-500 duration-100"
+            />
+          </>
+        ) : undefined}
+
         <p className="text-sm text-sky-500 w-fit font-semibold">Password</p>
 
         <input
@@ -136,8 +177,8 @@ export default function Register() {
           loading={submitLoader}
         />
       </div>
-      <div className="flex items-baseline gap-1 justify-center mt-10">
-        <p className="w-fit text-gray-500">Have an account?</p>
+      <div className="flex items-baseline gap-1 justify-center my-3">
+        <p className="w-fit text-gray-500">Already have an account?</p>
         <Link href={"/login"} className="block w-min text-sky-500 font-bold">
           Login
         </Link>