"use client";

import { useState, useEffect } from "react";
import styles from "./components.module.css";
import Script from "next/script";


export default function Contact() {
  const [loading, setLoading] = useState(false);
  const [status, setStatus] = useState<boolean | null>(null);
  const [captchaToken, setCaptchaToken] = useState<string | null>(null);
  const [pendingForm, setPendingForm] =
  useState<HTMLFormElement | null>(null);


  async function handleSubmit(e: React.FormEvent<HTMLFormElement>) {
    e.preventDefault();

    if (!captchaToken) {
      setPendingForm(e.currentTarget);
      // @ts-ignore
      window.grecaptcha.execute();
      return;
    }

    await sendForm(e.currentTarget);
  }

  async function sendForm(form: HTMLFormElement) {
    setLoading(true);
    setStatus(null);

    const data = {
      name: "Website Contact",
      email: (form.elements.namedItem("from") as HTMLInputElement).value,
      subject: (form.elements.namedItem("subject") as HTMLInputElement).value,
      message: (form.elements.namedItem("message") as HTMLTextAreaElement).value,
      token: captchaToken,
    };

    try {
      const res = await fetch("/api/contact", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify(data),
      });

      if (!res.ok) throw new Error();

      setStatus(true);
      form.reset();
    } catch {
      setStatus(false);
    } finally {
      setLoading(false);
      setCaptchaToken(null);
      // @ts-ignore
      window.grecaptcha.reset();
    }
  }

  useEffect(() => {
    if (captchaToken && pendingForm) {
      sendForm(pendingForm);
      setPendingForm(null);
    }
  }, [captchaToken]);

  useEffect(() => {
    if (status === true) {
      const timer = setTimeout(() => {
        setStatus(null);
      }, 3_000);

      return () => clearTimeout(timer);
    }
  }, [status]);
  
  useEffect(() => {
    (window as any).onRecaptchaSuccess = (token: string) => {
      setCaptchaToken(token);
    };
  }, []);
  

  const icon =
  status === null
    ? "/img/icons/send.png"
    : status === true
    ? "/img/icons/check.png"
    : "/img/icons/error.png";




  return (
    <div className={styles.cwindow}>
      <div className={styles.content}>
        <div className={styles.cbuttonContainer}>
          <a href="/" style={{ backgroundColor: "#FE4A45" }} className={styles.ball} />
          <div style={{ backgroundColor: "#FDBE05" }} className={styles.ball} />
          <div style={{ backgroundColor: "#05D02C" }} className={styles.ball} />
          <Script
            src="https://www.google.com/recaptcha/api.js"
            strategy="afterInteractive"
          />
          <div
            className="g-recaptcha"
            data-sitekey={process.env.NEXT_PUBLIC_RECAPTCHA_SITE_KEY}
            data-size="invisible"
            data-callback="onRecaptchaSuccess"
          />
          <button
            type="submit"
            form="contact-form"
            disabled={loading || pendingForm !== null || status === true}
            style={{
              marginLeft: "2vh",
              backgroundColor: "transparent",
              border: "none",
              cursor: "pointer",
              height: "2vh",
              opacity: loading ? 0.5 : 1,
            }}
          ><img
                src={icon}
                style={{ height: "2.5vh", filter: "invert(1)" }}
                alt="Send"
            />
          </button>
        </div>

        <div className={styles.mContent}>
          <div className={styles.form}>
            <form
              id="contact-form"
              onSubmit={handleSubmit}
              style={{ width: "100%", textAlign: "center" }}
            >
              <div style={{ display: "flex" }}>
                <span>To:</span>
                <input
                  type="email"
                  placeholder="contact@4l3ks.com"
                  disabled
                />
              </div>

              <div style={{ display: "flex" }}>
                <span>Cc:</span>
                <input type="email" disabled />
              </div>

              <div style={{ display: "flex" }}>
                <span>Subject:</span>
                <input
                  name="subject"
                  type="text"
                  required
                />
              </div>

              <div style={{ display: "flex" }}>
                <span>From:</span>
                <input
                  name="from"
                  type="email"
                  required
                />
              </div>

              <div style={{ display: "flex" }}>
                <textarea
                  name="message"
                  required
                  placeholder=""
                />
              </div>
            </form>
          </div>
        </div>
      </div>
    </div>
  );
}