zitadel/apps/login/ui/UsernameForm.tsx

"use client";

import { useState } from "react";
import { Button, ButtonVariants } from "./Button";
import { TextInput } from "./Input";
import { useForm } from "react-hook-form";
import { useRouter } from "next/navigation";
import { Spinner } from "./Spinner";

type Inputs = {
  loginName: string;
};

export default function UsernameForm() {
  const { register, handleSubmit, formState } = useForm<Inputs>({
    mode: "onBlur",
  });

  const router = useRouter();

  const [loading, setLoading] = useState<boolean>(false);

  function resubmitWithUsername(values: Inputs) {
    return router.push(
      `/loginname?` + new URLSearchParams({ loginName: values.loginName })
    );
    // setLoading(true);
    // const res = await fetch("/methods", {
    //   method: "POST",
    //   headers: {
    //     "Content-Type": "application/json",
    //   },
    //   body: JSON.stringify({
    //     loginName: values.loginName,
    //   }),
    // });

    // setLoading(false);
    // if (!res.ok) {
    //   throw new Error("Failed to load authentication methods");
    // }
    // return res.json();
  }

  const { errors } = formState;

  return (
    <form className="w-full">
      <div className="">
        <TextInput
          type="text"
          autoComplete="username"
          {...register("loginName", { required: "This field is required" })}
          label="Loginname"
          //   error={errors.username?.message as string}
        />
      </div>

      <div className="mt-8 flex w-full flex-row items-center">
        {/* <Button type="button" variant={ButtonVariants.Secondary}>
          back
        </Button> */}
        <span className="flex-grow"></span>
        <Button
          type="submit"
          className="self-end"
          variant={ButtonVariants.Primary}
          disabled={loading || !formState.isValid}
          onClick={handleSubmit(resubmitWithUsername)}
        >
          {loading && <Spinner className="h-5 w-5 mr-2" />}
          continue
        </Button>
      </div>
    </form>
  );
}