tm-landing/app/_contact-us/form.tsx

"use client";
import { handleApiError } from "@/lib/apiErrorHandler";
import { validationRules } from "@/lib/validation";
import api from "@/service/api";
import HCaptcha from "@hcaptcha/react-hcaptcha";
import { useRef, useState } from "react";
import { useForm } from "react-hook-form";
import { toast } from "react-toastify";
import InputGroup from "../_components/InputGroup";
import Loading from "../_components/Loading";
import TextareaGroup from "../_components/Textarea";

type TContactUsForm = {
  full_name: string;
  email: string;
  phone: string;
  message: string;
};

const FORM_FIELDS = ["full_name", "email", "phone", "message"];

interface IProps {
  columnsPerRow?: 1 | 2 | 3 | 4;
  buttonText?: string;
}
const ContactUsForm = ({
  buttonText = "Submit",
  columnsPerRow = 1,
}: IProps) => {
  const [isLoading, setIsLoading] = useState(false);
  const [hcaptchaToken, setHcaptchaToken] = useState<string | null>(null);
  const captchaRef = useRef<HCaptcha>(null);
  const {
    register,
    handleSubmit,
    formState: { errors },
    reset,
    setError,
  } = useForm<TContactUsForm>();

  const onCaptchaVerify = (token: string) => {
    setHcaptchaToken(token);
  };

  const onCaptchaExpire = () => {
    setHcaptchaToken(null);
  };

  const onSubmit = async (data: TContactUsForm) => {
    if (!hcaptchaToken) {
      toast.error("Please complete the captcha verification");
      return;
    }
    setIsLoading(() => true);
    try {
      const response = (
        await api.post("contacts", { ...data, hcaptcha_token: hcaptchaToken })
      ).data;
      toast.success(response.message);
      reset();
      setHcaptchaToken(null);
      captchaRef.current?.resetCaptcha();
    } catch (error) {
      handleApiError(error, setError, toast.error, FORM_FIELDS);
    } finally {
      setIsLoading(() => false);
    }
  };
  const gridColsClass = {
    1: "lg:grid-cols-1",
    2: "lg:grid-cols-2",
    3: "lg:grid-cols-3",
    4: "lg:grid-cols-4",
  }[columnsPerRow];

  const colSpanClass = {
    1: "lg:col-span-1",
    2: "lg:col-span-2",
    3: "lg:col-span-3",
    4: "lg:col-span-4",
  }[columnsPerRow];

  return (
    <form
      className={`w-full px-4 lg:px-16 py-10 grid ${gridColsClass} gap-4`}
      onSubmit={handleSubmit(onSubmit)}>
      <InputGroup
        id="full_name"
        label="Full Name"
        register={register}
        validation={validationRules.fullName}
        type="text"
        error={errors.full_name?.message}
      />
      <InputGroup
        id="email"
        label="Email"
        register={register}
        validation={validationRules.email}
        type="email"
        error={errors.email?.message}
      />
      <InputGroup
        id="phone"
        label="Phone"
        register={register}
        validation={validationRules.phone}
        type="text"
        error={errors.phone?.message}
      />
      <TextareaGroup
        id="message"
        label="Message"
        register={register}
        error={errors.message?.message}
        validation={validationRules.message}
      />
      <div className={`${colSpanClass}`}>
        <HCaptcha
          sitekey={process.env.NEXT_PUBLIC_HCAPTCHA_SITE_KEY || ""}
          onVerify={onCaptchaVerify}
          onExpire={onCaptchaExpire}
          ref={captchaRef}
        />
      </div>
      <div className={`${colSpanClass} flex justify-end`}>
        <button className="bg-(--primary) cursor-pointer w-fit text-white rounded-full py-4 px-6 flex justify-center items-center text-center">
          {isLoading ? <Loading /> : buttonText}
        </button>
      </div>
    </form>
  );
};

export default ContactUsForm;